$119+ Cheap flights from St. Louis (STL) to Maine
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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
Sep 25 — Oct 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Louis to Maine 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 St. Louis to Maine
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to MaineExplore the most affordable flight options available from St. Louis to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
Explore the most affordable flight options available from St. Louis to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/22. 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.
Tue 10/135:08 pm -
1 stop5h 51m
Wed 10/216:37 am -
1 stop5h 13m
Deal found 8/22![American Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 8/25. 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 10/135:31 pm -
1 stop4h 54m
Wed 10/215:19 am -
1 stop7h 28m
Deal found 8/25![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 8/25. 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 10/135:31 pm -
1 stop4h 54m
Sat 10/246:10 am -
1 stop6h 37m
Deal found 8/25![Delta logo]()
$288
This American Airlines deal was found by Cheapflights users on 8/25. 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.
Tue 10/135:08 pm -
1 stop5h 51m
Fri 10/232:10 pm -
1 stop7h 42m
Deal found 8/25![American Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 8/22. 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 10/2210:00 am -
1 stop5h 22m
Tue 10/275:19 am -
2 stops9h 34m
Deal found 8/22![Delta logo]()
$298
This CheapOair deal was found by Cheapflights users on 8/23. 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.
Thu 10/224:30 pm -
1 stop17h 32m
Sun 10/2511:47 am -
1 stop12h 26m
Deal found 8/23![Frontier logo]()
$319
This American Airlines deal was found by Cheapflights users on 8/25. 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.
Tue 10/2711:32 am -
1 stop8h 27m
Thu 10/297:15 am -
Nonstop3h 14m
Deal found 8/25![American Airlines logo]()
$320
This Southwest deal was found by Cheapflights users on 8/21. 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 10/264:50 pm -
1 stop7h 20m
Thu 10/2910:40 am -
2 stops9h 25m
Deal found 8/21![Southwest logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/205:19 pm -
1 stop16h 32m
Tue 9/2212:52 pm -
1 stop25h 18m
Deal found 8/25![Frontier logo]()
$323
This CheapOair deal was found by Cheapflights users on 8/23. 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 10/25:19 pm -
1 stop16h 22m
Sun 10/411:53 am -
1 stop29h 41m
Deal found 8/23![Frontier logo]()
$325
This American Airlines deal was found by Cheapflights users on 8/25. 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 10/76:10 pm -
Nonstop2h 47m
Sat 10/107:22 pm -
1 stop5h 57m
Deal found 8/25![American Airlines logo]()
$327
This CheapOair deal was found by Cheapflights users on 8/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:19 pm -
1 stop16h 32m
Sun 10/1111:47 am -
1 stop12h 26m
Deal found 8/21![Frontier logo]()
$329
Best flights from St. Louis to MaineDiscover carefully curated flight deals from St. Louis to Maine that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from St. Louis to Maine that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This United Airlines deal was found by Cheapflights users on 8/23. 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 10/134:50 pm -
1 stop5h 38m
Sat 10/176:00 am -
1 stop6h 33m
Deal found 8/23![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 8/24. 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 12/16:32 am -
1 stop4h 25m
Tue 12/156:00 am -
1 stop8h 28m
Deal found 8/24![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 8/26. 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 10/216:01 am -
1 stop6h 37m
Fri 11/64:24 pm -
1 stop6h 23m
Deal found 8/26![American Airlines logo]()
$353
This Southwest deal was found by Cheapflights users on 8/25. 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 10/164:30 pm -
2 stops6h 35m
Tue 10/202:50 pm -
1 stop5h 30m
Deal found 8/25![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 8/24. 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 10/166:00 am -
1 stop6h 02m
Tue 10/201:52 pm -
1 stop7h 22m
Deal found 8/24![Delta logo]()
$362
This Southwest deal was found by Cheapflights users on 8/23. 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 9/3010:45 am -
2 stops6h 50m
Fri 10/27:30 pm -
1 stop5h 05m
Deal found 8/23![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 8/24. 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 10/125:55 am -
Nonstop2h 35m
Wed 10/145:15 am -
Nonstop3h 00m
Deal found 8/24![Southwest logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Mon 11/96:00 am -
2 stops7h 32m
Wed 11/113:01 pm -
1 stop7h 34m
Deal found 8/20![United Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 8/25. 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 9/185:18 pm -
1 stop5h 29m
Sun 9/206:00 am -
1 stop5h 15m
Deal found 8/25![American Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 8/22. 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 9/94:53 pm -
1 stop5h 37m
Wed 9/167:17 pm -
1 stop5h 21m
Deal found 8/22![United Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 8/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/32:00 pm -
1 stop6h 12m
Wed 10/74:10 pm -
2 stops8h 44m
Deal found 8/21![Delta logo]()
$443
This Southwest deal was found by Cheapflights users on 8/21. 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.
Wed 10/74:30 pm -
1 stop4h 40m
Sat 10/105:35 am -
2 stops8h 25m
Deal found 8/21![Southwest logo]()
$409
This American Airlines deal was found by Cheapflights users on 8/25. 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 9/195:18 pm -
1 stop6h 18m
Sun 9/275:50 am -
1 stop5h 39m
Deal found 8/25![American Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/2412:14 pm -
1 stop7h 08m
Wed 10/283:40 pm -
1 stop7h 12m
Deal found 8/25![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 8/23. 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 10/2112:00 pm -
2 stops10h 25m
Fri 11/65:19 am -
2 stops12h 09m
Deal found 8/23![Delta logo]()
$448
This Southwest deal was found by Cheapflights users on 8/25. 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 11/226:00 am -
Nonstop2h 30m
Fri 11/2712:55 pm -
Nonstop3h 00m
Deal found 8/25![Southwest logo]()
$420
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/247:30 am -
1 stop6h 05m
Tue 9/2910:51 am -
2 stops9h 30m
Deal found 8/25![United Airlines logo]()
$432
This Southwest deal was found by Cheapflights users on 8/25. 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 9/156:30 am -
1 stop4h 45m
Tue 9/152:45 pm -
2 stops8h 00m
Deal found 8/25![Southwest logo]()
$420
This United Airlines deal was found by Cheapflights users on 8/22. 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 10/278:30 am -
2 stops9h 04m
Mon 11/25:00 pm -
1 stop5h 35m
Deal found 8/22![United Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Sat 9/512:59 pm -
1 stop7h 52m
Wed 9/97:17 pm -
1 stop5h 21m
Deal found 8/21![United Airlines logo]()
$433
This Southwest deal was found by Cheapflights users on 8/21. 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 9/294:45 pm -
1 stop4h 30m
Fri 10/910:40 am -
2 stops9h 25m
Deal found 8/21![Southwest logo]()
$437
This United Airlines deal was found by Cheapflights users on 8/22. 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 9/910:53 am -
2 stops11h 39m
Wed 9/165:15 am -
2 stops10h 00m
Deal found 8/22![United Airlines logo]()
$439
This Southwest deal was found by Cheapflights users on 8/22. 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 9/2512:55 pm -
2 stops8h 35m
Wed 9/305:45 am -
2 stops9h 10m
Deal found 8/22![Southwest logo]()
$450
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/104:50 pm -
1 stop5h 40m
Mon 9/147:17 pm -
1 stop5h 21m
Deal found 8/24![United Airlines logo]()
$444
This Southwest deal was found by Cheapflights users on 8/21. 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.
Fri 9/254:15 pm -
1 stop5h 15m
Tue 9/295:45 am -
2 stops9h 10m
Deal found 8/21![Southwest logo]()
$500
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Fri 9/119:40 am -
2 stops12h 52m
Mon 9/146:53 pm -
1 stop5h 45m
Deal found 8/21![United Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/208:00 am -
1 stop6h 43m
Sat 10/244:43 pm -
1 stop5h 38m
Deal found 8/25![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/88:00 am -
2 stops10h 24m
Sat 9/1210:45 am -
1 stop6h 21m
Deal found 8/24![United Airlines logo]()
$523
Last-minute flights from St. Louis to MaineDiscover last-minute flight deals from St. Louis to Maine. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Maine. Data last updated August 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/142:29 pm -
1 stop20h 38m
Wed 9/1612:54 pm -
2 stops21h 41m
Deal found 8/25![Frontier logo]()
$338
This CheapOair deal was found by Cheapflights users on 8/25. 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 9/185:19 pm -
1 stop16h 32m
Sun 9/2011:53 am -
1 stop29h 41m
Deal found 8/25![Frontier logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/205:19 pm -
1 stop16h 32m
Tue 9/2212:52 pm -
1 stop25h 18m
Deal found 8/25![Frontier logo]()
$323
This American Airlines deal was found by Cheapflights users on 8/25. 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.
Mon 9/215:00 am -
1 stop8h 08m
Wed 9/303:21 pm -
Nonstop3h 03m
Deal found 8/25![American Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 8/25. 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 9/221:01 pm -
1 stop6h 25m
Wed 9/236:50 am -
1 stop7h 33m
Deal found 8/25![Delta logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/232:29 pm -
1 stop20h 40m
Tue 9/2912:52 pm -
1 stop25h 18m
Deal found 8/25![Frontier logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/246:39 pm -
1 stop15h 12m
Tue 9/2912:52 pm -
2 stops31h 25m
Deal found 8/25![Frontier logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/252:29 pm -
1 stop20h 30m
Wed 9/3012:54 pm -
2 stops21h 41m
Deal found 8/25![Frontier logo]()
$336
This Southwest deal was found by Cheapflights users on 8/25. 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 9/287:00 pm -
Nonstop2h 35m
Wed 9/3010:05 am -
2 stops7h 40m
Deal found 8/25![Southwest logo]()
$332
This Southwest deal was found by Cheapflights users on 8/24. 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 9/304:45 pm -
1 stop4h 30m
Mon 10/55:25 am -
Nonstop3h 00m
Deal found 8/24![Southwest logo]()
$327
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/305:00 am -
1 stop8h 08m
Mon 10/57:23 pm -
1 stop5h 56m
Deal found 8/24![American Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 8/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:54 am -
Nonstop2h 46m
Tue 10/67:15 am -
Nonstop3h 14m
Deal found 8/21![American Airlines logo]()
$333
One-way flights from St. Louis to MaineSearch for one-way flight options from St. Louis to Maine. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
Search for one-way flight options from St. Louis to Maine. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/306:44 pm -
2 stops37h 30m
Deal found 8/24![Multiple Airlines logo]()
$119
This Super.com deal was found by Cheapflights users on 8/24. 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.
Sat 10/104:30 pm -
1 stop17h 32m
Deal found 8/24![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/282:29 pm -
2 stops41h 58m
Deal found 8/22![Multiple Airlines logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/212:29 pm -
1 stop20h 38m
Deal found 8/22![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 10/236:35 pm -
2 stops40h 09m
Deal found 8/22![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Fri 10/22:29 pm -
2 stops44h 15m
Deal found 8/21![Multiple Airlines logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/142:29 pm -
1 stop20h 38m
Deal found 8/24![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 10/244:30 pm -
1 stop17h 32m
Deal found 8/23![Frontier logo]()
$139
This CheapOair deal was found by Cheapflights users on 8/23. 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.
Thu 10/224:30 pm -
1 stop17h 32m
Deal found 8/23![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/166:35 pm -
2 stops22h 29m
Deal found 8/24![Multiple Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 9/232:29 pm -
2 stops18h 53m
Deal found 8/23![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/166:35 pm -
2 stops20h 49m
Deal found 8/24![Multiple Airlines logo]()
$153
Find flight deals from St. Louis to Maine
Keep the following information in mind while searching for St. Louis to Maine flight deals. Data was last updated August 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $249 (American Airlines) |
One-way from | $119 (Kiwi.com) |
Popular in | January |
Cheapest in | March |
Average price | $398 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Maine 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 August 26, 2026.
Use the filters below to find and compare flights from St. Louis to Maine that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Tue 10/13
4:50 pm-11:28 pm
1 stop5h 38m
Portland
Sat 10/17
6:00 am-11:33 am
1 stop6h 33m
$339
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Tue 12/1
6:32 am-11:57 am
1 stop4h 25m
Portland
Tue 12/15
6:00 am-1:28 pm
1 stop8h 28m
$339
St. LouisBangor
STL Lambert-St Louis - BGR Bangor
STLBGR
Lambert-St Louis
Wed 10/21
6:01 am-1:38 pm
1 stop6h 37m
Bangor
Fri 11/6
4:24 pm-9:47 pm
1 stop6h 23m
$353
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Fri 10/16
6:00 am-1:02 pm
1 stop6h 02m
Portland
Tue 10/20
1:52 pm-8:14 pm
1 stop7h 22m
$362
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Fri 10/16
4:30 pm-12:05 am
2 stops6h 35m
Boston Logan Intl
Tue 10/20
2:50 pm-7:20 pm
1 stop5h 30m
$368
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Wed 9/30
10:45 am-6:35 pm
2 stops6h 50m
Boston Logan Intl
Fri 10/2
7:30 pm-11:35 pm
1 stop5h 05m
$368
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Mon 10/12
5:55 am-9:30 am
Nonstop2h 35m
Boston Logan Intl
Wed 10/14
5:15 am-7:15 am
Nonstop3h 00m
$369
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Wed 10/7
4:30 pm-10:10 pm
1 stop4h 40m
Boston Logan Intl
Sat 10/10
5:35 am-1:00 pm
2 stops8h 25m
$409
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Mon 11/9
6:00 am-2:32 pm
2 stops7h 32m
Boston Logan Intl
Wed 11/11
3:01 pm-9:35 pm
1 stop7h 34m
$412
Quickest round-trip
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Sun 11/22
6:00 am-9:30 am
Nonstop2h 30m
Boston Logan Intl
Fri 11/27
12:55 pm-2:55 pm
Nonstop3h 00m
$420
Showing 1-10 of 53 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Maine
Have a flexible travel schedule? Discover the best time to fly to Maine from St. Louis with our price prediction graph.
STL-BOS
STL-BGR
STL-PWM
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 St. Louis to Maine
STL-USME
STL-BOS
STL-BGR
STL-PWM
What is the cheapest month to book a flight from St. Louis to Maine?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Maine (average of $349). Flying from St. Louis to Maine in January is currently the most expensive (average of $574). 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.
How much does it cost to fly round-trip from St. Louis to Maine?
Airfare is below average for this route at the moment.
St. Louis to Maine flights typically cost between $372 and $475 in December.The cheapest round-trip price found within the last 5 days was $339 on Delta (Dec 1-Dec 15).
How far ahead should I book a flight from St. Louis to Maine?
The best time to book flights from St. Louis to Maine is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Maine
Get insights into the airlines that provide service to Maine. 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 Maine. Reviews last updated August 26, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from St. Louis to Maine to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Maine. 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 St. Louis to Maine
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Maine by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Maine by cabin class
Find flights from St. Louis to Maine, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Maine flights
Browse other St. Louis and Maine flight options. Last updated on August 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Maine flights
Consider these flights traveling from St. Louis to Maine.
Top 4 airlines flying from St. Louis to Maine
Discover the top 4 airlines that operate flights from St. Louis to Maine. 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 August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$449 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$278 | Average$449 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$426 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$366 | Average$485 | FlexibilityNo cancel fee | On-time63% |