$83+ Cheap flights from Pennsylvania 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — MCI
Jul 20 — Jul 271
Round-trip
1 adult, Economy
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Cheapest flights from Pennsylvania to MissouriExplore the most affordable flight options available from Pennsylvania to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
Explore the most affordable flight options available from Pennsylvania to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 8/610:29 pm
EWR
- MCI
1 stop19h 41m
Frontier
Mon 8/106:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/15![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/2310:29 pm
EWR
- MCI
1 stop19h 41m
Frontier
Wed 7/296:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/15![Frontier logo]()
$255
This Frontier deal was found by Cheapflights users on 6/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Fri 7/246:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/19![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/175:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Mon 7/206:07 pm
MCI
- EWR
1 stop26h 21m
Frontier
Deal found 6/16![Frontier logo]()
$257
This Expedia deal was found by Cheapflights users on 6/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Sat 7/256:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/18![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/2110:29 pm
EWR
- MCI
1 stop19h 41m
Frontier
Fri 7/246:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/15![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Wed 8/56:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/15![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 6/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Sat 8/86:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/19![Frontier logo]()
$262
This Expedia deal was found by Cheapflights users on 6/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Mon 7/206:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/18![Frontier logo]()
$263
This Expedia deal was found by Cheapflights users on 6/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Sat 7/186:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/17![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 8/710:29 pm
EWR
- MCI
1 stop19h 41m
Frontier
Mon 8/106:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/17![Frontier logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 8/177:18 pm
IAD
- STL
2 stops21h 58m
Frontier
Thu 8/206:45 pm
STL
- IAD
1 stop12h 19m
Frontier
Deal found 6/20![Frontier logo]()
$270
Best flights from Pennsylvania to MissouriDiscover carefully curated flight deals from Pennsylvania to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
Discover carefully curated flight deals from Pennsylvania to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
This Delta deal was found by Cheapflights users on 6/18. 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 8/66:00 am
IAD
- STL
1 stop4h 54m
Delta
Mon 8/1012:52 pm
STL
- IAD
1 stop7h 03m
Delta
Deal found 6/18![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 6/17. 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 7/146:10 am
IAD
- STL
1 stop7h 01m
United Airlines
Tue 7/218:43 am
STL
- IAD
Nonstop2h 12m
United Airlines
Deal found 6/17![United Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 6/20. 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.
Sun 7/267:25 am
DCA
- MCI
1 stop7h 15m
Southwest
Sat 8/18:35 am
MCI
- DCA
Nonstop2h 20m
Southwest
Deal found 6/20![Southwest logo]()
$335
This Expedia deal was found by Cheapflights users on 6/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 pm
DCA
- MCI
1 stop20h 00m
Frontier
Mon 8/31:45 pm
MCI
- DCA
1 stop7h 14m
Frontier
Deal found 6/15![Frontier logo]()
$359
This American Airlines deal was found by Cheapflights users on 6/20. 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 7/157:59 am
JFK
- MCI
1 stop6h 01m
American Airlines
Sun 7/197:03 am
MCI
- JFK
1 stop12h 58m
American Airlines
Deal found 6/20![American Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 6/17. 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 8/512:30 pm
IAD
- STL
1 stop4h 47m
Delta
Fri 8/712:52 pm
STL
- IAD
1 stop7h 03m
Delta
Deal found 6/17![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Mon 8/175:15 pm
IAD
- STL
1 stop5h 45m
United Airlines
Thu 8/208:40 am
STL
- IAD
Nonstop2h 14m
United Airlines
Deal found 6/15![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 6/18. 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 8/148:28 am
IAD
- STL
1 stop4h 18m
Delta
Tue 8/1812:52 pm
STL
- IAD
1 stop6h 13m
Delta
Deal found 6/18![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/19. 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 9/155:45 pm
LGA
- STL
Nonstop2h 50m
Southwest
Fri 9/188:00 pm
STL
- LGA
Nonstop2h 20m
Southwest
Deal found 6/19![Southwest logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/20. 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 7/189:43 pm
EWR
- MCI
Nonstop3h 16m
United Airlines
Sat 7/253:26 pm
MCI
- EWR
Nonstop3h 03m
United Airlines
Deal found 6/20![United Airlines logo]()
$323
This Southwest deal was found by Cheapflights users on 6/19. 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.
Wed 9/163:15 pm
LGA
- STL
Nonstop2h 50m
Southwest
Sun 9/205:45 am
STL
- LGA
Nonstop2h 20m
Southwest
Deal found 6/19![Southwest logo]()
$341
This Delta deal was found by Cheapflights users on 6/19. 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.
Tue 9/86:09 pm
IAD
- STL
1 stop6h 33m
Delta
Fri 9/116:00 am
STL
- IAD
1 stop7h 12m
Delta
Deal found 6/19![Delta logo]()
$322
This United Airlines deal was found by Cheapflights users on 6/16. 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 9/129:44 pm
EWR
- MCI
Nonstop3h 15m
United Airlines
Tue 9/226:00 am
MCI
- EWR
Nonstop2h 52m
United Airlines
Deal found 6/16![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 6/17. 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.
Wed 7/1512:00 pm
LGA
- STL
Nonstop2h 40m
Southwest
Sun 7/195:45 am
STL
- LGA
Nonstop2h 20m
Southwest
Deal found 6/17![Southwest logo]()
$341
This Delta deal was found by Cheapflights users on 6/17. 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 8/610:00 am
LGA
- STL
Nonstop2h 47m
Delta
Mon 8/107:00 am
STL
- LGA
1 stop5h 42m
Delta
Deal found 6/17![Delta logo]()
$332
This Southwest deal was found by Cheapflights users on 6/18. 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 9/33:30 pm
DCA
- MCI
1 stop7h 20m
Southwest
Sun 9/67:25 pm
MCI
- DCA
Nonstop2h 25m
Southwest
Deal found 6/18![Southwest logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/16. 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 7/16:10 am
IAD
- STL
1 stop7h 01m
United Airlines
Sat 7/118:43 am
STL
- IAD
Nonstop2h 12m
United Airlines
Deal found 6/16![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 6/19. 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 8/66:00 am
IAD
- MCI
1 stop7h 26m
Delta
Mon 8/101:31 pm
MCI
- IAD
1 stop6h 24m
Delta
Deal found 6/19![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 6/17. 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 7/176:30 pm
LGA
- STL
Nonstop3h 00m
Southwest
Wed 7/295:55 pm
STL
- LGA
1 stop4h 05m
Southwest
Deal found 6/17![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 6/17. 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 8/128:25 am
IAD
- STL
Nonstop2h 14m
United Airlines
Wed 8/125:30 pm
STL
- IAD
1 stop6h 14m
United Airlines
Deal found 6/17![United Airlines logo]()
$349
This KAYAK deal was found by Cheapflights users on 6/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:30 am
JFK
- STL
1 stop4h 31m
American Airlines
Thu 7/166:55 am
STL
- JFK
1 stop6h 35m
American Airlines
Deal found 6/15![American Airlines logo]()
$513
This Delta deal was found by Cheapflights users on 6/16. 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 7/306:29 pm
LGA
- STL
Nonstop3h 06m
Delta
Tue 8/49:25 am
STL
- LGA
Nonstop2h 31m
Delta
Deal found 6/16![Delta logo]()
$341
This Southwest deal was found by Cheapflights users on 6/15. 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 9/106:30 pm
LGA
- STL
Nonstop2h 40m
Southwest
Sun 9/137:45 pm
STL
- LGA
Nonstop2h 20m
Southwest
Deal found 6/15![Southwest logo]()
$355
This American Airlines deal was found by Cheapflights users on 6/15. 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.
Sat 6/273:30 pm
JFK
- STL
1 stop5h 27m
American Airlines
Sun 6/287:03 am
STL
- JFK
1 stop6h 35m
American Airlines
Deal found 6/15![American Airlines logo]()
$526
This United Airlines deal was found by Cheapflights users on 6/16. 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 9/58:25 am
IAD
- STL
Nonstop2h 14m
United Airlines
Mon 9/75:30 pm
STL
- IAD
1 stop6h 14m
United Airlines
Deal found 6/16![United Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 6/19. 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 8/216:25 pm
LGA
- STL
Nonstop3h 06m
Delta
Sat 8/292:00 pm
STL
- LGA
Nonstop2h 38m
Delta
Deal found 6/19![Delta logo]()
$341
This Southwest deal was found by Cheapflights users on 6/19. 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 9/36:30 am
LGA
- MCI
1 stop8h 10m
Southwest
Sun 9/69:00 am
MCI
- LGA
Nonstop2h 45m
Southwest
Deal found 6/19![Southwest logo]()
$362
This Delta deal was found by Cheapflights users on 6/15. 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 8/136:00 am
JFK
- STL
1 stop6h 46m
Delta
Mon 8/176:00 am
STL
- JFK
1 stop4h 59m
Delta
Deal found 6/15![Delta logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/15. 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 8/259:40 am
EWR
- STL
Nonstop2h 37m
United Airlines
Wed 8/268:00 am
STL
- EWR
1 stop7h 54m
United Airlines
Deal found 6/15![United Airlines logo]()
$383
This Southwest deal was found by Cheapflights users on 6/17. 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 8/106:30 am
LGA
- MCI
Nonstop3h 00m
Southwest
Thu 8/137:25 am
MCI
- LGA
1 stop6h 25m
Southwest
Deal found 6/17![Southwest logo]()
$363
Last-minute flights from Pennsylvania to MissouriDiscover last-minute flight deals from Pennsylvania to Missouri. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Missouri. Data last updated June 20, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 6/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Wed 7/86:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/17![Frontier logo]()
$270
This Expedia deal was found by Cheapflights users on 6/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Sat 7/186:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/17![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/1012:28 pm
IAD
- STL
2 stops21h 29m
Frontier
Mon 7/134:57 pm
STL
- IAD
1 stop22h 43m
Frontier
Deal found 6/18![Frontier logo]()
$271
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Wed 8/56:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/15![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 6/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Fri 7/246:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/19![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/1610:29 pm
EWR
- MCI
1 stop19h 41m
Frontier
Sat 7/186:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/16![Frontier logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/175:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Mon 7/206:07 pm
MCI
- EWR
1 stop26h 21m
Frontier
Deal found 6/16![Frontier logo]()
$257
This Expedia deal was found by Cheapflights users on 6/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Sat 7/256:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/18![Frontier logo]()
$258
This Expedia deal was found by Cheapflights users on 6/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Mon 7/206:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/18![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/2110:29 pm
EWR
- MCI
1 stop19h 41m
Frontier
Fri 7/246:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/15![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/2310:29 pm
EWR
- MCI
1 stop19h 41m
Frontier
Wed 7/296:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/15![Frontier logo]()
$255
This Frontier deal was found by Cheapflights users on 6/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:55 am
EWR
- MCI
1 stop12h 15m
Frontier
Fri 7/316:07 pm
MCI
- EWR
1 stop5h 56m
Frontier
Deal found 6/18![Frontier logo]()
$268
One-way flights from Pennsylvania to MissouriSearch for one-way flight options from Pennsylvania to Missouri. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
Search for one-way flight options from Pennsylvania to Missouri. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
This Trip.com deal was found by Cheapflights users on 6/17. 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.
Wed 7/86:30 am
PHL
- MCI
1 stop11h 40m
Frontier
Deal found 6/17![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/144:30 pm
PHL
- MCI
1 stop25h 40m
Frontier
Deal found 6/20![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 8/114:30 pm
PHL
- MCI
1 stop25h 40m
Frontier
Deal found 6/17![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 9/129:14 am
PHL
- MCI
1 stop9h 02m
Frontier
Deal found 6/18![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/178:30 am
PHL
- MCI
1 stop9h 40m
Frontier
Deal found 6/18![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/158:30 am
PHL
- MCI
1 stop9h 40m
Frontier
Deal found 6/15![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/161:32 pm
PHL
- MCI
1 stop28h 38m
Frontier
Deal found 6/20![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/101:32 pm
PHL
- MCI
1 stop28h 38m
Frontier
Deal found 6/16![Frontier logo]()
$99
This Trip.com deal was found by Cheapflights users on 6/19. 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 10/1210:29 pm
EWR
- STL
1 stop12h 11m
Frontier
Deal found 6/19![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/119:51 am
PHL
- MCI
1 stop8h 19m
Frontier
Deal found 6/16![Frontier logo]()
$101
This Trip.com deal was found by Cheapflights users on 6/18. 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.
Wed 7/1510:29 pm
EWR
- STL
1 stop20h 08m
Frontier
Deal found 6/18![Frontier logo]()
$103
This Trip.com deal was found by Cheapflights users on 6/15. 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 8/245:55 am
EWR
- MCI
1 stop12h 29m
Frontier
Deal found 6/15![Frontier logo]()
$104
Find flight deals from Pennsylvania to Missouri
Keep the following information in mind while searching for Pennsylvania to Missouri flight deals. Data was last updated June 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $254 (Frontier) |
One-way from | $83 (Trip.com) |
Popular in | June |
Cheapest in | August |
Average price | $483 |
Good round-trip deal | $343 or less |
Good one-way deal | $180 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pennsylvania 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 June 20, 2026.
Use the filters below to find and compare flights from Pennsylvania to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.St. Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Thu 8/6
6:00 am-9:54 am
1 stop4h 54m
Lambert-St Louis
Mon 8/10
12:52 pm-8:55 pm
1 stop7h 03m
$271
Washington, D.C.St. Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Tue 7/14
6:10 am-12:11 pm
1 stop7h 01m
Lambert-St Louis
Tue 7/21
8:43 am-11:55 am
Nonstop2h 12m
$294
Washington, D.C.St. Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Wed 8/5
12:30 pm-4:17 pm
1 stop4h 47m
Lambert-St Louis
Fri 8/7
12:52 pm-8:55 pm
1 stop7h 03m
$307
Washington, D.C.St. Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Fri 8/14
8:28 am-11:46 am
1 stop4h 18m
Lambert-St Louis
Tue 8/18
12:52 pm-8:05 pm
1 stop6h 13m
$307
Washington, D.C.St. Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Mon 8/17
5:15 pm-10:00 pm
1 stop5h 45m
Lambert-St Louis
Thu 8/20
8:40 am-11:54 am
Nonstop2h 14m
$319
Washington, D.C.St. Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Tue 9/8
6:09 pm-11:42 pm
1 stop6h 33m
Lambert-St Louis
Fri 9/11
6:00 am-2:12 pm
1 stop7h 12m
$322
NewarkKansas City
EWR - MCI
EWRMCI
Newark
Sat 7/18
9:43 pm-11:59 pm
Nonstop3h 16m
Kansas City
Sat 7/25
3:26 pm-7:29 pm
Nonstop3h 03m
$323
New YorkSt. Louis
LGA - STL
LGASTL
New York LaGuardia
Thu 8/6
10:00 am-11:47 am
Nonstop2h 47m
Lambert-St Louis
Mon 8/10
7:00 am-1:42 pm
1 stop5h 42m
$332
Washington, D.C.Kansas City
DCA - MCI
DCAMCI
Washington, D.C. Reagan-National
Sun 7/26
7:25 am-1:40 pm
1 stop7h 15m
Kansas City
Sat 8/1
8:35 am-11:55 am
Nonstop2h 20m
$335
Washington, D.C.Kansas City
IAD - MCI
IADMCI
Washington, D.C. Dulles Intl
Thu 8/6
6:00 am-12:26 pm
1 stop7h 26m
Kansas City
Mon 8/10
1:31 pm-8:55 pm
1 stop6h 24m
$337
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Pennsylvania to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Pennsylvania with our price prediction graph.
EWR-MCI
IAD-STL
PHL-MCI
DCA-MCI
IAD-MCI
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 Pennsylvania to Missouri
USPA-USMO
EWR-MCI
IAD-STL
PHL-MCI
DCA-MCI
What is the cheapest month to book a flight from Pennsylvania to Missouri?
Currently, November is the cheapest month in which you can book a flight from Pennsylvania to Missouri (average of $72). Flying from Pennsylvania to Missouri in March is currently the most expensive (average of $258). 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 PA to MO?
Find hourly flight availability from Pennsylvania 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 June 20, 2026.
It’s optimal to fly from Pennsylvania to Missouri in the afternoon. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from Pennsylvania to Missouri
Explore weekly flight availability from Pennsylvania 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 June 20, 2026.
The most flights from USPA to USMO are scheduled on a Friday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Pennsylvania to Missouri?
How far ahead should I book a flight from Pennsylvania to Missouri?
Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pennsylvania 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 Pennsylvania to Missouri?
Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to Missouri. Price data was last updated on June 20, 2026.
Travelers seeking maximum savings on their Pennsylvania to Missouri flight should consider departing on Thursday at noon 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 June 20, 2026.
Read through reviews of airlines operating flights from Pennsylvania to Missouri, such as Southwest,Delta, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Pennsylvania to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Pennsylvania 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 Pennsylvania to Missouri by cabin class
Find flights from Pennsylvania to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Pennsylvania and Missouri flights
Browse other Pennsylvania and Missouri flight options. Last updated on June 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Missouri
Find the right flight back to Pennsylvania after your stay in Missouri
Pennsylvania to Missouri flights
Consider these flights traveling from Pennsylvania to Missouri.
Top 6 airlines flying from Pennsylvania to Missouri
Discover the top 6 airlines that operate flights from Pennsylvania 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 June 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$141 | Average$236 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$170 | Average$410 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$413 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$219 | Average$387 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$426 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$358 | Average$433 | FlexibilityNo cancel fee | On-time62% |