$158+ 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
Aug 5 — Aug 121
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Maine with Cheapflights
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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 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 July 6, 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 July 6, 2026.
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/912:59 pm
STL
- BGR
1 stop7h 48m
United Airlines
Sat 9/126:00 am
BGR
- STL
1 stop6h 17m
United Airlines
Deal found 7/3![United Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:05 pm
STL
- BGR
1 stop7h 53m
United Airlines
Sat 8/294:43 pm
BGR
- STL
1 stop6h 17m
United Airlines
Deal found 7/2![United Airlines logo]()
$267
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:13 pm
STL
- BGR
1 stop5h 46m
American Airlines
Wed 9/232:08 pm
BGR
- STL
1 stop8h 09m
American Airlines
Deal found 7/1![American Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
STL
- BGR
1 stop6h 38m
American Airlines
Sat 9/125:50 am
BGR
- STL
1 stop5h 39m
American Airlines
Deal found 7/1![American Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/15:25 pm
STL
- BGR
1 stop5h 15m
Delta
Mon 9/74:55 pm
BGR
- STL
1 stop4h 47m
Delta
Deal found 7/6![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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.
Mon 9/141:55 pm
STL
- BGR
2 stops8h 25m
Delta
Wed 9/235:17 am
BGR
- STL
2 stops11h 37m
Delta
Deal found 7/3![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/112:10 pm
STL
- BGR
2 stops8h 30m
Delta
Wed 8/195:20 am
BGR
- STL
2 stops11h 57m
Delta
Deal found 7/2![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:00 am
STL
- BGR
1 stop5h 21m
Delta
Sat 9/122:15 pm
BGR
- STL
2 stops10h 01m
Delta
Deal found 7/5![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:25 am
STL
- BGR
1 stop7h 22m
United Airlines
Tue 9/89:32 am
BGR
- STL
1 stop7h 06m
United Airlines
Deal found 7/1![United Airlines logo]()
$308
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/193:39 pm
STL
- PWM
1 stop6h 34m
Delta
Wed 8/2611:01 am
PWM
- STL
1 stop5h 37m
Delta
Deal found 7/2![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:00 am
STL
- PWM
1 stop5h 34m
United Airlines
Tue 9/85:15 am
PWM
- STL
2 stops7h 42m
United Airlines
Deal found 7/1![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:45 am
STL
- PWM
2 stops8h 15m
Southwest
Sat 9/125:40 am
PWM
- STL
2 stops7h 55m
Southwest
Deal found 7/2![Southwest logo]()
$343
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 July 6, 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 July 6, 2026.
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:05 pm
STL
- BGR
1 stop7h 53m
United Airlines
Sat 8/294:43 pm
BGR
- STL
1 stop6h 17m
United Airlines
Deal found 7/2![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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.
Mon 9/142:30 pm
STL
- BGR
2 stops7h 50m
Delta
Wed 9/235:17 am
BGR
- STL
1 stop7h 26m
Delta
Deal found 7/4![Delta logo]()
$293
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:55 pm
STL
- PWM
1 stop5h 05m
Southwest
Sat 9/125:40 am
PWM
- STL
2 stops8h 45m
Southwest
Deal found 7/2![Southwest logo]()
$338
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:04 pm
STL
- PWM
1 stop7h 27m
Delta
Tue 9/86:00 am
PWM
- STL
1 stop7h 32m
Delta
Deal found 7/1![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/114:50 pm
STL
- BGR
1 stop5h 40m
United Airlines
Wed 8/196:00 am
BGR
- STL
2 stops10h 38m
United Airlines
Deal found 7/3![United Airlines logo]()
$334
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:40 pm
STL
- BOS
Nonstop2h 35m
Southwest
Fri 10/94:50 pm
BOS
- STL
1 stop7h 25m
Southwest
Deal found 7/1![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/226:00 am
STL
- BGR
2 stops8h 42m
Delta
Sat 8/296:00 am
BGR
- STL
2 stops11h 17m
Delta
Deal found 7/2![Delta logo]()
$367
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/1912:59 pm
STL
- BGR
1 stop7h 48m
United Airlines
Wed 9/236:00 am
BGR
- STL
2 stops10h 38m
United Airlines
Deal found 7/4![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:25 am
STL
- BOS
2 stops8h 35m
Southwest
Sat 8/15:10 am
BOS
- STL
2 stops8h 45m
Southwest
Deal found 7/1![Southwest logo]()
$390
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:24 am
STL
- BGR
2 stops13h 02m
Delta
Thu 7/305:20 am
BGR
- STL
1 stop7h 27m
Delta
Deal found 7/1![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
STL
- PWM
2 stops7h 34m
United Airlines
Tue 8/116:53 pm
PWM
- STL
1 stop5h 45m
United Airlines
Deal found 7/1![United Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:15 pm
STL
- PWM
2 stops9h 10m
Southwest
Mon 8/315:55 am
PWM
- STL
1 stop6h 40m
Southwest
Deal found 7/1![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/296:00 am
STL
- BOS
2 stops7h 40m
United Airlines
Wed 8/56:00 am
BOS
- STL
1 stop7h 11m
United Airlines
Deal found 7/2![United Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 7/155:00 pm
STL
- BGR
1 stop5h 22m
Delta
Tue 7/215:20 am
BGR
- STL
1 stop7h 27m
Delta
Deal found 7/4![Delta logo]()
$414
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/282:20 pm
STL
- PWM
1 stop6h 10m
Southwest
Sat 10/312:45 pm
PWM
- STL
Nonstop4h 35m
Southwest
Deal found 7/2![Southwest logo]()
$416
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 8/41:13 pm
STL
- BGR
1 stop7h 34m
United Airlines
Mon 8/107:15 pm
BGR
- STL
1 stop5h 29m
United Airlines
Deal found 7/6![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:45 am
STL
- PWM
1 stop7h 15m
Southwest
Sat 9/267:25 am
PWM
- STL
1 stop4h 25m
Southwest
Deal found 7/5![Southwest logo]()
$422
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/115:30 pm
STL
- PWM
1 stop4h 47m
Delta
Sun 9/136:00 am
PWM
- STL
1 stop7h 32m
Delta
Deal found 7/6![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:30 am
STL
- BOS
1 stop6h 05m
United Airlines
Sat 9/2612:36 pm
BOS
- STL
2 stops9h 45m
United Airlines
Deal found 7/1![United Airlines logo]()
$423
This Southwest deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/51:20 pm
STL
- BOS
Nonstop2h 35m
Southwest
Tue 8/115:35 am
BOS
- STL
Nonstop2h 50m
Southwest
Deal found 7/5![Southwest logo]()
$431
This Delta deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 10/38:00 am
STL
- PWM
1 stop7h 01m
Delta
Sat 10/106:28 am
PWM
- STL
1 stop6h 20m
Delta
Deal found 7/4![Delta logo]()
$437
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 7/184:53 pm
STL
- BGR
1 stop5h 26m
United Airlines
Tue 7/216:00 am
BGR
- STL
1 stop7h 11m
United Airlines
Deal found 7/4![United Airlines logo]()
$423
This Southwest deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/34:25 pm
STL
- PWM
2 stops6h 45m
Southwest
Thu 8/65:55 am
PWM
- STL
1 stop6h 40m
Southwest
Deal found 7/5![Southwest logo]()
$442
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/117:00 am
STL
- BOS
1 stop5h 52m
Delta
Tue 8/181:10 pm
BOS
- STL
1 stop5h 28m
Delta
Deal found 7/5![Delta logo]()
$451
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:50 am
STL
- PWM
1 stop8h 04m
United Airlines
Wed 9/239:49 am
PWM
- STL
2 stops12h 42m
United Airlines
Deal found 7/1![United Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:00 am
STL
- BOS
Nonstop2h 35m
Southwest
Tue 8/185:45 pm
BOS
- STL
Nonstop2h 55m
Southwest
Deal found 7/5![Southwest logo]()
$446
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/112:52 pm
STL
- BGR
2 stops9h 48m
Delta
Mon 9/74:55 pm
BGR
- STL
2 stops8h 03m
Delta
Deal found 7/2![Delta logo]()
$478
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/145:30 pm
STL
- BOS
1 stop5h 00m
United Airlines
Thu 9/175:45 am
BOS
- STL
2 stops7h 12m
United Airlines
Deal found 7/2![United Airlines logo]()
$442
This Southwest deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/217:00 pm
STL
- BOS
Nonstop2h 30m
Southwest
Wed 9/305:35 am
BOS
- STL
Nonstop2h 50m
Southwest
Deal found 7/4![Southwest logo]()
$446
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/317:25 am
STL
- PWM
2 stops10h 59m
United Airlines
Sat 9/56:03 am
PWM
- STL
1 stop5h 09m
United Airlines
Deal found 7/2![United Airlines logo]()
$449
Last-minute flights from St. Louis to MaineDiscover last-minute flight deals from St. Louis to Maine. Data last updated July 6, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Maine. Data last updated July 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 7/89:22 am
STL
- BGR
1 stop6h 11m
American Airlines
Wed 7/226:55 am
BGR
- STL
1 stop7h 58m
American Airlines
Deal found 7/4![American Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/85:42 pm
STL
- BGR
1 stop5h 03m
American Airlines
Tue 8/115:53 pm
BGR
- STL
1 stop6h 41m
American Airlines
Deal found 7/3![American Airlines logo]()
$286
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/81:18 pm
STL
- BGR
2 stops9h 01m
United Airlines
Tue 8/117:17 pm
BGR
- STL
1 stop5h 21m
United Airlines
Deal found 7/3![United Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/81:18 pm
STL
- BGR
2 stops9h 01m
United Airlines
Wed 8/197:17 pm
BGR
- STL
1 stop5h 21m
United Airlines
Deal found 7/3![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:00 am
STL
- BGR
1 stop5h 05m
American Airlines
Wed 8/195:46 pm
BGR
- STL
1 stop6h 48m
American Airlines
Deal found 7/1![American Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:25 pm
STL
- BGR
1 stop5h 15m
Delta
Wed 8/195:20 am
BGR
- STL
2 stops11h 57m
Delta
Deal found 7/1![Delta logo]()
$324
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/112:10 pm
STL
- BGR
2 stops8h 30m
Delta
Wed 8/195:20 am
BGR
- STL
2 stops11h 57m
Delta
Deal found 7/2![Delta logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:09 pm
STL
- BGR
1 stop17h 04m
Multiple Airlines
Sat 8/1510:06 am
BGR
- STL
2 stops32h 31m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/175:42 pm
STL
- BGR
1 stop5h 03m
American Airlines
Mon 8/245:30 pm
BGR
- STL
1 stop7h 44m
American Airlines
Deal found 7/4![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/193:39 pm
STL
- PWM
1 stop6h 34m
Delta
Wed 8/2611:01 am
PWM
- STL
1 stop5h 37m
Delta
Deal found 7/2![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:05 pm
STL
- BGR
1 stop7h 53m
United Airlines
Sat 8/294:43 pm
BGR
- STL
1 stop6h 17m
United Airlines
Deal found 7/2![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/227:05 am
STL
- BGR
1 stop6h 53m
Delta
Sat 8/296:00 am
BGR
- STL
2 stops11h 17m
Delta
Deal found 7/2![Delta logo]()
$293
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 July 6, 2026.
Search for one-way flight options from St. Louis to Maine. Find affordable one-way fares based on user searches. Data last updated July 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:57 pm
STL
- PWM
2 stops44h 12m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$158
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/285:25 am
STL
- BOS
2 stops8h 35m
Southwest
Deal found 7/2![Southwest logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/74:57 pm
STL
- BGR
3 stops41h 35m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 10/110:35 am
STL
- BOS
1 stop24h 30m
Frontier
Deal found 7/2![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/1010:35 am
STL
- BOS
1 stop24h 30m
Frontier
Deal found 7/2![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:34 pm
STL
- PWM
2 stops27h 04m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$163
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/177:00 am
STL
- BOS
Nonstop2h 35m
Southwest
Deal found 7/3![Southwest logo]()
$164
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:00 pm
STL
- BOS
Nonstop2h 44m
American Airlines
Deal found 7/1![American Airlines logo]()
$165
This CheapOair deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 7/244:09 pm
STL
- BOS
1 stop16h 00m
Frontier
Deal found 7/6![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 7/254:57 pm
STL
- PWM
2 stops25h 45m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:35 am
STL
- BGR
2 stops21h 52m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:35 am
STL
- BOS
2 stops22h 34m
Frontier
Deal found 7/1![Frontier logo]()
$167
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 July 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (United Airlines) |
One-way from | $158 (Kiwi.com) |
Popular in | January |
Cheapest in | March |
Average price | $516 |
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 2,558,603 searches. Data last updated July 6, 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. LouisBangor
STL - BGR
STLBGR
Lambert-St Louis
Sat 8/22
1:05 pm-9:58 pm
1 stop7h 53m
Bangor
Sat 8/29
4:43 pm-10:00 pm
1 stop6h 17m
$267
St. LouisBangor
STL - BGR
STLBGR
Lambert-St Louis
Mon 9/14
2:30 pm-11:20 pm
2 stops7h 50m
Bangor
Wed 9/23
5:17 am-11:43 am
1 stop7h 26m
$293
St. LouisPortland
STL - PWM
STLPWM
Lambert-St Louis
Sat 9/5
1:04 pm-9:31 pm
1 stop7h 27m
Portland
Tue 9/8
6:00 am-12:32 pm
1 stop7h 32m
$333
St. LouisBangor
STL - BGR
STLBGR
Lambert-St Louis
Tue 8/11
4:50 pm-11:30 pm
1 stop5h 40m
Bangor
Wed 8/19
6:00 am-3:38 pm
2 stops10h 38m
$334
St. LouisPortland
STL - PWM
STLPWM
Lambert-St Louis
Sat 9/5
2:55 pm-9:00 pm
1 stop5h 05m
Portland
Sat 9/12
5:40 am-1:25 pm
2 stops8h 45m
$338
St. LouisBangor
STL - BGR
STLBGR
Lambert-St Louis
Sat 8/22
6:00 am-3:42 pm
2 stops8h 42m
Bangor
Sat 8/29
6:00 am-4:17 pm
2 stops11h 17m
$367
St. LouisBangor
STL - BGR
STLBGR
Lambert-St Louis
Sat 9/19
12:59 pm-9:47 pm
1 stop7h 48m
Bangor
Wed 9/23
6:00 am-3:38 pm
2 stops10h 38m
$374
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Tue 9/29
6:40 pm-10:15 pm
Nonstop2h 35m
Boston Logan Intl
Fri 10/9
4:50 pm-11:15 pm
1 stop7h 25m
$385
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Tue 7/28
5:25 am-3:00 pm
2 stops8h 35m
Boston Logan Intl
Sat 8/1
5:10 am-12:55 pm
2 stops8h 45m
$390
St. LouisBangor
STL - BGR
STLBGR
Lambert-St Louis
Mon 7/13
9:24 am-11:26 pm
2 stops13h 02m
Bangor
Thu 7/30
5:20 am-11:47 am
1 stop7h 27m
$393
Showing 1-10 of 57 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-BGR
STL-BOS
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-BGR
STL-BOS
STL-PWM
What is the cheapest month to book a flight from St. Louis to Maine?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Maine (average of $151). Flying from St. Louis to Maine in January is currently the most expensive (average of $476). 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?
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 58 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 July 6, 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.
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
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.
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Alternative routes for St. Louis to Maine
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Complete your trip
Complete your trip to Maine by adding a car rental and/or hotel reservation to your travel itinerary.
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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 July 6, 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 2,558,603 searches. Data last updated July 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$431 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$273 | Average$414 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$278 | Average$440 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$318 | Average$485 | FlexibilityNo cancel fee | On-time63% |