$57+ Cheap flights from Pennsylvania to Missouri
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STL
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from Pennsylvania 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
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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 September 22, 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 September 22, 2026.
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
1 stop31h 35m
Thu 10/224:30 pm -
1 stop16h 47m
Deal found 9/16![Frontier logo]()
$239
This Super.com deal was found by Cheapflights users on 9/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:50 am -
1 stop10h 50m
Mon 10/196:35 pm -
1 stop4h 46m
Deal found 9/18![Frontier logo]()
$240
This Cheapflightsfares deal was found by Cheapflights users on 9/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:12 am -
1 stop13h 01m
Sun 10/254:30 pm -
1 stop16h 47m
Deal found 9/20![Frontier logo]()
$241
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/176:40 pm -
Nonstop2h 30m
Sat 10/246:05 am -
1 stop6h 55m
Deal found 9/17![Southwest logo]()
$241
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:40 am -
1 stop11h 00m
Sun 11/154:26 pm -
1 stop16h 55m
Deal found 9/17![Frontier logo]()
$242
This Southwest deal was found by Cheapflights users on 9/21. 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 10/138:00 am -
Nonstop2h 25m
Wed 10/1410:20 am -
1 stop3h 10m
Deal found 9/21![Southwest logo]()
$243
This Southwest deal was found by Cheapflights users on 9/17. 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 10/216:00 am -
1 stop6h 45m
Mon 10/267:50 pm -
Nonstop2h 05m
Deal found 9/17![Southwest logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/1711:12 am -
1 stop13h 01m
Mon 10/196:35 pm -
1 stop21h 38m
Deal found 9/18![Frontier logo]()
$245
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 pm -
1 stop26h 14m
Sat 10/317:59 pm -
1 stop16h 10m
Deal found 9/17![Frontier logo]()
$245
This Mytrip deal was found by Cheapflights users on 9/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:54 am -
2 stops16h 19m
Fri 10/166:35 pm -
2 stops24h 36m
Deal found 9/21![Frontier logo]()
$246
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:11 am -
1 stop6h 59m
Sat 11/141:00 pm -
Nonstop2h 09m
Deal found 9/18![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/21. 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 10/1512:00 pm -
Nonstop2h 25m
Mon 10/192:00 pm -
1 stop4h 50m
Deal found 9/21![Southwest logo]()
$247
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 September 22, 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 September 22, 2026.
This Southwest deal was found by Cheapflights users on 9/18. 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.
Mon 10/198:00 am -
Nonstop2h 25m
Mon 10/264:20 pm -
1 stop5h 35m
Deal found 9/18![Southwest logo]()
$247
This Delta deal was found by Cheapflights users on 9/18. 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.
Sat 10/176:10 am -
1 stop6h 37m
Mon 10/1910:00 am -
1 stop7h 36m
Deal found 9/18![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:23 am -
1 stop4h 47m
Mon 11/91:00 pm -
Nonstop2h 09m
Deal found 9/19![United Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:29 pm -
1 stop5h 17m
Mon 11/305:00 am -
1 stop4h 30m
Deal found 9/16![American Airlines logo]()
$514
This Southwest deal was found by Cheapflights users on 9/19. 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.
Fri 11/612:00 pm -
Nonstop2h 25m
Mon 11/93:55 pm -
Nonstop1h 55m
Deal found 9/19![Southwest logo]()
$266
This Delta deal was found by Cheapflights users on 9/16. 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.
Tue 10/206:10 am -
1 stop4h 39m
Fri 10/235:35 pm -
1 stop5h 12m
Deal found 9/16![Delta logo]()
$284
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:25 am -
Nonstop2h 30m
Wed 12/27:15 pm -
Nonstop1h 55m
Deal found 9/16![Southwest logo]()
$274
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/268:40 am -
Nonstop2h 32m
Mon 11/306:50 pm -
1 stop4h 40m
Deal found 9/21![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 9/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:05 am -
1 stop4h 44m
Fri 10/237:20 pm -
1 stop4h 22m
Deal found 9/20![Delta logo]()
$286
This Southwest deal was found by Cheapflights users on 9/18. 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.
Fri 11/69:15 pm -
1 stop4h 20m
Mon 11/97:40 pm -
Nonstop2h 15m
Deal found 9/18![Southwest logo]()
$289
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 11/2310:00 am -
1 stop5h 34m
Fri 11/276:00 am -
1 stop5h 03m
Deal found 9/16![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 9/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:45 am -
Nonstop2h 44m
Mon 10/195:31 pm -
Nonstop2h 29m
Deal found 9/20![Delta logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:31 pm -
1 stop30h 28m
Fri 11/63:23 pm -
1 stop30h 32m
Deal found 9/16![Alaska Airlines logo]()
$770
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:00 pm -
2 stops8h 10m
Mon 11/1610:20 am -
1 stop7h 30m
Deal found 9/16![Southwest logo]()
$290
This Delta deal was found by Cheapflights users on 9/16. 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 11/126:25 pm -
Nonstop3h 05m
Tue 11/175:00 pm -
Nonstop2h 30m
Deal found 9/16![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/162:18 pm -
Nonstop2h 42m
Mon 10/197:01 pm -
1 stop4h 56m
Deal found 9/16![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 9/19. 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 11/1212:00 pm -
2 stops8h 10m
Fri 11/133:05 pm -
1 stop6h 35m
Deal found 9/19![Southwest logo]()
$291
This Delta deal was found by Cheapflights users on 9/17. 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 11/57:03 am -
Nonstop3h 10m
Wed 11/116:45 am -
Nonstop2h 40m
Deal found 9/17![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/213:47 pm -
1 stop6h 34m
Thu 10/298:00 am -
Nonstop2h 10m
Deal found 9/17![United Airlines logo]()
$333
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Mon 12/216:00 pm -
Nonstop2h 58m
Fri 12/257:31 am -
1 stop5h 41m
Deal found 9/17![United Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 9/19. 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 10/226:45 am -
Nonstop2h 44m
Sat 10/246:47 am -
1 stop6h 11m
Deal found 9/19![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 9/20. 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.
Sat 10/176:00 am -
Nonstop2h 45m
Sun 10/187:25 pm -
Nonstop2h 30m
Deal found 9/20![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 9/19. 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.
Wed 11/49:59 am -
Nonstop2h 48m
Sat 11/710:47 am -
1 stop5h 56m
Deal found 9/19![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 9/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:55 pm -
Nonstop3h 00m
Sat 11/711:33 am -
Nonstop2h 27m
Deal found 9/19![United Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 9/20. 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.
Wed 11/1112:15 pm -
Nonstop2h 25m
Sun 11/151:20 pm -
Nonstop1h 55m
Deal found 9/20![Southwest logo]()
$312
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/205:21 pm -
1 stop5h 00m
Fri 10/231:29 pm -
1 stop4h 56m
Deal found 9/21![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 9/16. 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 10/226:00 am -
1 stop5h 51m
Sat 10/245:33 pm -
1 stop5h 15m
Deal found 9/16![Delta logo]()
$314
This Southwest deal was found by Cheapflights users on 9/20. 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.
Thu 11/59:15 pm -
1 stop4h 20m
Sun 11/87:45 am -
Nonstop2h 20m
Deal found 9/20![Southwest logo]()
$318
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:56 pm -
1 stop5h 54m
Sun 11/295:00 am -
1 stop5h 05m
Deal found 9/16![American Airlines logo]()
$657
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/228:30 am -
1 stop4h 43m
Sun 10/255:00 am -
1 stop5h 08m
Deal found 9/17![United Airlines logo]()
$341
Last-minute flights from Pennsylvania to MissouriDiscover last-minute flight deals from Pennsylvania to Missouri. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Missouri. Data last updated September 22, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 9/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:50 am -
1 stop10h 50m
Mon 10/196:35 pm -
1 stop4h 46m
Deal found 9/18![Frontier logo]()
$240
This Southwest deal was found by Cheapflights users on 9/21. 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 10/138:00 am -
Nonstop2h 25m
Wed 10/1410:20 am -
1 stop3h 10m
Deal found 9/21![Southwest logo]()
$243
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/135:20 pm -
1 stop5h 01m
Wed 10/141:09 pm -
Nonstop2h 16m
Deal found 9/21![United Airlines logo]()
$247
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
1 stop31h 35m
Thu 10/224:30 pm -
1 stop16h 47m
Deal found 9/16![Frontier logo]()
$239
This Mytrip deal was found by Cheapflights users on 9/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:54 am -
2 stops16h 19m
Fri 10/166:35 pm -
2 stops24h 36m
Deal found 9/21![Frontier logo]()
$246
This Southwest deal was found by Cheapflights users on 9/21. 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 10/1512:00 pm -
Nonstop2h 25m
Mon 10/192:00 pm -
1 stop4h 50m
Deal found 9/21![Southwest logo]()
$247
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/175:55 pm -
Nonstop2h 26m
Sat 10/241:25 pm -
1 stop5h 00m
Deal found 9/17![United Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/176:40 pm -
Nonstop2h 30m
Sat 10/246:05 am -
1 stop6h 55m
Deal found 9/17![Southwest logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/1711:12 am -
1 stop13h 01m
Mon 10/196:35 pm -
1 stop21h 38m
Deal found 9/18![Frontier logo]()
$245
This Southwest deal was found by Cheapflights users on 9/17. 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 10/216:00 am -
1 stop6h 45m
Mon 10/267:50 pm -
Nonstop2h 05m
Deal found 9/17![Southwest logo]()
$244
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 pm -
1 stop26h 14m
Sat 10/317:59 pm -
1 stop16h 10m
Deal found 9/17![Frontier logo]()
$245
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:40 am -
1 stop11h 00m
Sun 11/14:26 pm -
1 stop16h 55m
Deal found 9/17![Frontier logo]()
$248
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 September 22, 2026.
Search for one-way flight options from Pennsylvania to Missouri. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This Trip.com deal was found by Cheapflights users on 9/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/2710:14 pm -
1 stop20h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$60
This CheapOair deal was found by Cheapflights users on 9/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$69
This Jetabroad deal was found by Cheapflights users on 9/17. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$70
This CheapOair deal was found by Cheapflights users on 9/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$75
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:29 pm -
1 stop20h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 9/19. 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.
Wed 12/96:05 am -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 11/1710:14 pm -
1 stop20h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$82
This Super.com deal was found by Cheapflights users on 9/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:30 am -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$84
This Southwest deal was found by Cheapflights users on 9/21. 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 10/198:00 am -
Nonstop2h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Southwest logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/197:50 am -
2 stops16h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:06 pm -
2 stops27h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$124
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Trip.com) |
One-way from | $57 (Trip.com) |
Popular in | June |
Cheapest in | September |
Average price | $348 |
Good round-trip deal | $318 or less |
Good one-way deal | $213 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 7,457,451 searches. Data last updated September 22, 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 Washington, D.C. Dulles Intl - STL Lambert-St Louis
IADSTL
Washington, D.C. Dulles Intl
Thu 1/14
8:19 am-12:13 pm
1 stop4h 54m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
Washington, D.C.St. Louis
DCA Washington, D.C. Reagan-National - STL Lambert-St Louis
DCASTL
Washington, D.C. Reagan-National
Sat 10/17
9:40 am-3:37 pm
1 stop6h 57m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
Washington, D.C.St. Louis
DCA Washington, D.C. Reagan-National - STL Lambert-St Louis
DCASTL
Washington, D.C. Reagan-National
Mon 10/19
6:10 am-11:47 am
1 stop6h 37m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
Washington, D.C.St. Louis
DCA Washington, D.C. Reagan-National - STL Lambert-St Louis
DCASTL
Washington, D.C. Reagan-National
Tue 10/20
6:26 pm-11:54 pm
1 stop6h 28m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
Quickest round-trip
Washington, D.C.St. Louis
DCA Washington, D.C. Reagan-National - STL Lambert-St Louis
DCASTL
Washington, D.C. Reagan-National
Thu 10/22
12:00 pm-1:25 pm
Nonstop2h 25m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$133
Washington, D.C.St. Louis
DCA Washington, D.C. Reagan-National - STL Lambert-St Louis
DCASTL
Washington, D.C. Reagan-National
Thu 10/22
7:46 am-12:13 pm
1 stop5h 27m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$138
Washington, D.C.St. Louis
DCA Washington, D.C. Reagan-National - STL Lambert-St Louis
DCASTL
Washington, D.C. Reagan-National
Thu 10/29
12:31 pm-6:15 pm
1 stop6h 44m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$138
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Wed 10/14
12:48 pm-2:37 pm
Nonstop2h 49m
Kansas City
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$140
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Tue 1/5
1:00 pm-5:32 pm
1 stop5h 32m
Kansas City
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$141
NewarkKansas City
EWR Newark - MCI Kansas City
EWRMCI
Newark
Thu 11/19
6:00 am-8:11 am
1 stop27h 11m
Kansas City
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$145
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-STL
DCA-STL
IAD-STL
EWR-MCI
LGA-STL
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-STL
DCA-STL
IAD-STL
EWR-MCI
What is the cheapest month to book a flight from Pennsylvania to Missouri?
Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Missouri (average of $359). Flying from Pennsylvania to Missouri in June is currently the most expensive (average of $493). 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 September 22, 2026.
It’s optimal to fly from Pennsylvania to Missouri at noon. By choosing this option you can save up to 10% 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 September 22, 2026.
The most flights from USPA to USMO are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Pennsylvania to Missouri?
Airfare is below average for this route at the moment.
Pennsylvania to Missouri flights typically cost between $298 and $450 in November.The cheapest round-trip price found within the last 5 days was $277 on Southwest (Nov 3-Nov 5).
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 September 19, 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 September 22, 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.
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
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 September 22, 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 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$246 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$446 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$188 | Average$399 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$217 | Average$434 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$258 | Average$418 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$358 | Average$433 | FlexibilityNo cancel fee | On-time62% |