$68+ Cheap flights from Philadelphia (PHL) to Missouri
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STL
Aug 31 — Sep 71
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Philadelphia to Missouri with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Philadelphia to Missouri
Cheapest
Best
Last-minute
One-way
Cheapest flights from Philadelphia to MissouriExplore the most affordable flight options available from Philadelphia to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.
Explore the most affordable flight options available from Philadelphia to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:30 am
PHL
- STL
1 stop9h 52m
Frontier
Mon 9/76:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/28![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:28 pm
PHL
- STL
1 stop17h 12m
Frontier
Fri 11/610:35 am
STL
- PHL
1 stop6h 40m
Frontier
Deal found 7/28![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:30 am
PHL
- STL
1 stop9h 52m
Frontier
Mon 9/76:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/28![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:30 am
PHL
- STL
1 stop9h 52m
Frontier
Sun 8/306:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/29![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:41 am
PHL
- STL
1 stop5h 29m
Frontier
Mon 9/142:29 pm
STL
- PHL
1 stop7h 49m
Frontier
Deal found 7/31![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:41 am
PHL
- STL
1 stop5h 29m
Frontier
Mon 9/282:29 pm
STL
- PHL
1 stop15h 47m
Frontier
Deal found 7/30![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:30 am
PHL
- STL
1 stop9h 52m
Frontier
Fri 8/286:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/30![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:38 pm
PHL
- STL
1 stop17h 02m
Frontier
Mon 10/1910:35 am
STL
- PHL
1 stop6h 40m
Frontier
Deal found 7/28![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:45 pm
PHL
- STL
1 stop27h 37m
Frontier
Mon 8/316:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 am
PHL
- STL
1 stop11h 52m
Frontier
Mon 8/246:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/27![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:00 am
PHL
- SGF
1 stop28h 58m
Multiple Airlines
Tue 10/1310:48 am
SGF
- PHL
1 stop24h 44m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:58 pm
PHL
- SGF
1 stop19h 35m
Multiple Airlines
Mon 10/196:14 pm
SGF
- PHL
1 stop13h 56m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$269
Best flights from Philadelphia to MissouriDiscover carefully curated flight deals from Philadelphia to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
Discover carefully curated flight deals from Philadelphia to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:55 am
PHL
- STL
Nonstop2h 20m
Southwest
Sun 9/65:50 pm
STL
- PHL
Nonstop2h 10m
Southwest
Deal found 8/1![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:30 am
PHL
- STL
1 stop5h 25m
Delta
Sat 9/267:05 am
STL
- PHL
1 stop5h 10m
Delta
Deal found 7/30![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:56 pm
PHL
- COU
1 stop4h 59m
United Airlines
Sat 9/510:55 am
COU
- PHL
1 stop5h 59m
United Airlines
Deal found 7/28![United Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:30 am
PHL
- COU
1 stop5h 43m
American Airlines
Wed 9/26:00 am
COU
- PHL
2 stops8h 05m
American Airlines
Deal found 7/29![American Airlines logo]()
$324
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:20 am
PHL
- STL
Nonstop2h 15m
Southwest
Thu 8/2011:05 am
STL
- PHL
1 stop5h 50m
Southwest
Deal found 7/27![Southwest logo]()
$287
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:20 am
PHL
- STL
Nonstop2h 15m
Southwest
Sat 9/57:50 am
STL
- PHL
1 stop4h 40m
Southwest
Deal found 7/29![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:05 am
PHL
- COU
1 stop7h 25m
United Airlines
Tue 9/13:11 pm
COU
- PHL
1 stop5h 32m
United Airlines
Deal found 7/27![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:16 pm
PHL
- SGF
1 stop6h 05m
Delta
Tue 8/256:06 am
SGF
- PHL
1 stop6h 20m
Delta
Deal found 7/27![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:30 pm
PHL
- JLN
1 stop6h 16m
United Airlines
Sun 8/308:30 am
JLN
- PHL
1 stop5h 10m
United Airlines
Deal found 7/28![United Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:54 pm
PHL
- SGF
1 stop7h 14m
Delta
Wed 9/305:34 pm
SGF
- PHL
1 stop6h 06m
Delta
Deal found 7/28![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:05 pm
PHL
- STL
2 stops9h 15m
Southwest
Mon 10/191:05 pm
STL
- PHL
2 stops7h 45m
Southwest
Deal found 7/28![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:15 pm
PHL
- SGF
1 stop5h 37m
Delta
Sat 10/244:00 pm
SGF
- PHL
1 stop4h 40m
Delta
Deal found 7/31![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:35 pm
PHL
- STL
Nonstop2h 25m
Southwest
Fri 8/286:05 am
STL
- PHL
1 stop5h 20m
Southwest
Deal found 7/30![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:30 am
PHL
- JLN
2 stops9h 16m
United Airlines
Sat 8/158:30 am
JLN
- PHL
1 stop5h 10m
United Airlines
Deal found 7/27![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:55 pm
PHL
- STL
2 stops9h 15m
Southwest
Thu 8/2710:05 am
STL
- PHL
2 stops6h 50m
Southwest
Deal found 7/29![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:10 am
PHL
- MCI
1 stop4h 37m
Delta
Tue 10/275:38 pm
MCI
- PHL
1 stop4h 30m
Delta
Deal found 7/31![Delta logo]()
$397
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:59 pm
PHL
- COU
1 stop5h 39m
United Airlines
Sat 11/73:00 pm
COU
- PHL
1 stop5h 34m
United Airlines
Deal found 7/27![United Airlines logo]()
$398
This Travelocity deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:15 am
PHL
- CGI
2 stops13h 20m
Multiple Airlines
Wed 12/99:40 am
CGI
- PHL
2 stops18h 47m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,110
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:45 pm
PHL
- STL
2 stops7h 25m
Southwest
Mon 8/2411:05 am
STL
- PHL
2 stops9h 55m
Southwest
Deal found 7/31![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/133:05 pm
PHL
- SGF
2 stops9h 37m
United Airlines
Sun 8/166:37 pm
SGF
- PHL
1 stop5h 22m
United Airlines
Deal found 7/30![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:10 am
PHL
- MCI
1 stop4h 37m
Delta
Sun 11/86:30 am
MCI
- PHL
1 stop6h 40m
Delta
Deal found 7/27![Delta logo]()
$425
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:55 am
PHL
- STL
1 stop6h 20m
Southwest
Sun 10/42:35 pm
STL
- PHL
Nonstop2h 10m
Southwest
Deal found 7/31![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:16 am
PHL
- SGF
1 stop9h 00m
United Airlines
Sat 10/39:00 am
SGF
- PHL
1 stop6h 49m
United Airlines
Deal found 7/31![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/266:00 am
PHL
- MCI
1 stop4h 46m
Delta
Wed 12/303:30 pm
MCI
- PHL
1 stop7h 10m
Delta
Deal found 7/31![Delta logo]()
$428
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:20 am
PHL
- STL
Nonstop2h 15m
Southwest
Sun 9/276:00 am
STL
- PHL
1 stop6h 00m
Southwest
Deal found 7/31![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:30 pm
PHL
- JLN
1 stop6h 16m
United Airlines
Tue 9/18:30 am
JLN
- PHL
1 stop5h 10m
United Airlines
Deal found 7/31![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:45 am
PHL
- STL
2 stops8h 20m
Southwest
Sun 9/610:30 am
STL
- PHL
2 stops9h 50m
Southwest
Deal found 7/27![Southwest logo]()
$373
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:30 pm
PHL
- JLN
1 stop6h 16m
United Airlines
Wed 9/28:30 am
JLN
- PHL
1 stop5h 10m
United Airlines
Deal found 7/30![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:35 pm
PHL
- STL
Nonstop2h 25m
Southwest
Sun 9/206:00 am
STL
- PHL
1 stop6h 00m
Southwest
Deal found 7/28![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:20 am
PHL
- SGF
1 stop7h 38m
United Airlines
Tue 11/33:10 pm
SGF
- PHL
2 stops7h 21m
United Airlines
Deal found 7/29![United Airlines logo]()
$415
Last-minute flights from Philadelphia to MissouriDiscover last-minute flight deals from Philadelphia to Missouri. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Missouri. Data last updated August 1, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:16 pm
PHL
- SGF
1 stop6h 05m
Delta
Tue 8/256:06 am
SGF
- PHL
1 stop6h 20m
Delta
Deal found 7/28![Delta logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 am
PHL
- STL
1 stop11h 52m
Frontier
Mon 8/246:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/28![Frontier logo]()
$163
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:30 pm
PHL
- JLN
1 stop6h 16m
United Airlines
Sun 8/308:30 am
JLN
- PHL
1 stop5h 10m
United Airlines
Deal found 7/28![United Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:30 am
PHL
- STL
1 stop9h 52m
Frontier
Fri 8/286:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/30![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:30 am
PHL
- STL
1 stop9h 52m
Frontier
Sun 8/306:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/29![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:30 am
PHL
- STL
1 stop9h 52m
Frontier
Thu 9/36:17 pm
STL
- PHL
1 stop17h 09m
Frontier
Deal found 7/29![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:30 am
PHL
- STL
1 stop11h 52m
Frontier
Fri 9/46:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/31![Frontier logo]()
$167
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:05 am
PHL
- COU
1 stop7h 25m
United Airlines
Tue 9/13:11 pm
COU
- PHL
1 stop5h 32m
United Airlines
Deal found 7/27![United Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:45 pm
PHL
- STL
1 stop27h 37m
Frontier
Mon 8/316:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:30 am
PHL
- STL
1 stop9h 52m
Frontier
Thu 9/36:17 pm
STL
- PHL
1 stop17h 09m
Frontier
Deal found 7/29![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:45 pm
PHL
- STL
1 stop25h 37m
Frontier
Sun 9/66:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/28![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:30 am
PHL
- STL
1 stop9h 52m
Frontier
Mon 9/76:17 pm
STL
- PHL
1 stop11h 58m
Frontier
Deal found 7/28![Frontier logo]()
$131
One-way flights from Philadelphia to MissouriSearch for one-way flight options from Philadelphia to Missouri. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
Search for one-way flight options from Philadelphia to Missouri. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
This Trip.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:30 am
PHL
- STL
1 stop11h 52m
Frontier
Deal found 8/1![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:45 pm
PHL
- STL
1 stop21h 25m
Frontier
Deal found 7/30![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:41 am
PHL
- STL
1 stop5h 29m
Frontier
Deal found 8/1![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:45 pm
PHL
- STL
1 stop25h 37m
Frontier
Deal found 7/28![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:45 pm
PHL
- STL
1 stop25h 37m
Frontier
Deal found 7/31![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:30 am
PHL
- STL
1 stop9h 52m
Frontier
Deal found 7/29![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:45 pm
PHL
- STL
1 stop27h 37m
Frontier
Deal found 7/27![Frontier logo]()
$81
This Trip.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 am
PHL
- STL
1 stop11h 52m
Frontier
Deal found 7/28![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/282:45 pm
PHL
- MCI
1 stop26h 20m
Frontier
Deal found 7/29![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:30 am
PHL
- STL
1 stop11h 52m
Frontier
Deal found 8/1![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:45 pm
PHL
- MCI
1 stop18h 56m
Frontier
Deal found 7/28![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:30 am
PHL
- MCI
1 stop27h 11m
Frontier
Deal found 7/29![Frontier logo]()
$86
Find flight deals from Philadelphia to Missouri
Keep the following information in mind while searching for Philadelphia to Missouri flight deals. Data was last updated August 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $131 (Kiwi.com) |
One-way from | $68 (Trip.com) |
Popular in | June |
Cheapest in | September |
Average price | $327 |
Good round-trip deal | $354 or less |
Good one-way deal | $215 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2026.
Use the filters below to find and compare flights from Philadelphia to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
Sat 9/5
11:55 am-1:15 pm
Nonstop2h 20m
Lambert-St Louis
Sun 9/6
5:50 pm-9:00 pm
Nonstop2h 10m
$277
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
Thu 8/20
6:20 am-7:35 am
Nonstop2h 15m
Lambert-St Louis
Thu 8/20
11:05 am-5:55 pm
1 stop5h 50m
$287
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
Mon 8/31
6:20 am-7:35 am
Nonstop2h 15m
Lambert-St Louis
Sat 9/5
7:50 am-1:30 pm
1 stop4h 40m
$287
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
Wed 9/23
6:30 am-10:55 am
1 stop5h 25m
Lambert-St Louis
Sat 9/26
7:05 am-1:15 pm
1 stop5h 10m
$297
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
Sat 10/17
12:05 pm-8:20 pm
2 stops9h 15m
Lambert-St Louis
Mon 10/19
1:05 pm-9:50 pm
2 stops7h 45m
$307
PhiladelphiaSt. Louis
PHL - STL
PHLSTL
Philadelphia
Mon 8/24
6:35 pm-8:00 pm
Nonstop2h 25m
Lambert-St Louis
Fri 8/28
6:05 am-12:25 pm
1 stop5h 20m
$317
PhiladelphiaColumbia
PHL - COU
PHLCOU
Philadelphia
Tue 9/1
6:56 pm-10:55 pm
1 stop4h 59m
Columbia Regional
Sat 9/5
10:55 am-5:54 pm
1 stop5h 59m
$318
PhiladelphiaColumbia
PHL - COU
PHLCOU
Philadelphia
Fri 8/28
8:05 am-2:30 pm
1 stop7h 25m
Columbia Regional
Tue 9/1
3:11 pm-9:43 pm
1 stop5h 32m
$318
PhiladelphiaColumbia
PHL - COU
PHLCOU
Philadelphia
Wed 8/26
7:30 am-12:13 pm
1 stop5h 43m
Columbia Regional
Wed 9/2
6:00 am-3:05 pm
2 stops8h 05m
$324
PhiladelphiaJoplin
PHL - JLN
PHLJLN
Philadelphia
Sat 8/22
1:30 pm-6:46 pm
1 stop6h 16m
Joplin
Sun 8/30
8:30 am-2:40 pm
1 stop5h 10m
$324
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Philadelphia to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Philadelphia with our price prediction graph.
PHL-STL
PHL-MCI
PHL-SGF
PHL-COU
PHL-JLN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Missouri
PHL-USMO
PHL-STL
PHL-MCI
PHL-SGF
PHL-COU
What is the cheapest month to book a flight from Philadelphia to Missouri?
Currently, October is the cheapest month in which you can book a flight from Philadelphia to Missouri (average of $381). Flying from Philadelphia to Missouri in June is currently the most expensive (average of $499). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHL to MO?
Find hourly flight availability from Philadelphia to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2026.
When flying from Philadelphia to Missouri, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 11% versus a flight in the morning.
Weekly flight availability from Philadelphia to Missouri
Explore weekly flight availability from Philadelphia to Missouri. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 1, 2026.
The most flights from PHL to USMO are scheduled on a Thursday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Philadelphia to Missouri?
Airfare is below average for this route at the moment.
Philadelphia to Missouri flights typically cost between $245 and $442 in August.The cheapest round-trip price found within the last 5 days was $131 on Frontier (Aug 31-Sep 7).
How far ahead should I book a flight from Philadelphia to Missouri?
Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to Missouri. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Philadelphia to Missouri?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Missouri. Price data was last updated on July 25, 2026.
Travelers seeking maximum savings on their Philadelphia to Missouri flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Missouri
Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated August 1, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Philadelphia to Missouri to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Philadelphia to Missouri
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Missouri by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Philadelphia to Missouri by cabin class
Find flights from Philadelphia to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Missouri flights
Browse other Philadelphia and Missouri flight options. Last updated on August 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Philadelphia to Missouri flights
Consider these flights traveling from Philadelphia to Missouri.
Top 6 airlines flying from Philadelphia to Missouri
Discover the top 6 airlines that operate flights from Philadelphia to Missouri. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$224 | Average$476 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$251 | Average$452 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$269 | Average$418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$273 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$358 | Average$433 | FlexibilityNo cancel fee | On-time62% |