$132+ Cheap flights from St. Louis (STL) to Maine
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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
Nov 10 — Nov 171
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 October 11, 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 October 11, 2026.
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/105:00 pm -
1 stop5h 25m
Tue 11/175:13 am -
1 stop7h 35m
Deal found 10/9![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:31 pm -
1 stop5h 02m
Tue 12/156:00 am -
1 stop6h 29m
Deal found 10/8![Delta logo]()
$281
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 12/15:00 am -
1 stop5h 56m
Sat 12/1212:34 pm -
1 stop8h 23m
Deal found 10/8![American Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 10/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:35 am -
1 stop4h 35m
Thu 12/1012:45 pm -
2 stops7h 40m
Deal found 10/6![Southwest logo]()
$286
This American Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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.
Thu 10/295:08 pm -
1 stop5h 51m
Tue 11/174:24 pm -
1 stop6h 14m
Deal found 10/7![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/296:47 am -
2 stops7h 43m
Tue 11/175:13 am -
1 stop7h 35m
Deal found 10/7![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/57:30 am -
1 stop5h 46m
Mon 11/95:08 pm -
1 stop5h 32m
Deal found 10/8![United Airlines logo]()
$334
This Southwest deal was found by Cheapflights users on 10/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:35 am -
1 stop7h 10m
Wed 1/65:35 am -
1 stop7h 45m
Deal found 10/6![Southwest logo]()
$335
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/76:47 am -
1 stop4h 35m
Sat 11/146:00 am -
1 stop8h 23m
Deal found 10/10![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/24:30 pm -
2 stops6h 20m
Fri 11/65:10 pm -
1 stop8h 00m
Deal found 10/9![Southwest logo]()
$344
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/96:00 am -
1 stop4h 53m
Fri 11/1312:50 pm -
1 stop7h 32m
Deal found 10/9![American Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/75:45 am -
2 stops8h 00m
Sat 11/145:25 am -
2 stops9h 45m
Deal found 10/10![Southwest logo]()
$349
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 October 11, 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 October 11, 2026.
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/1012:29 pm -
2 stops9h 56m
Tue 11/1712:00 pm -
2 stops9h 29m
Deal found 10/10![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 10/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:35 am -
1 stop4h 35m
Thu 12/1012:45 pm -
2 stops7h 40m
Deal found 10/6![Southwest logo]()
$286
This American Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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.
Thu 10/295:08 pm -
1 stop5h 51m
Tue 11/174:24 pm -
1 stop6h 14m
Deal found 10/7![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 10/6. 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 12/19:40 am -
2 stops10h 02m
Sat 12/123:41 pm -
1 stop7h 34m
Deal found 10/6![United Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:32 am -
1 stop4h 32m
Mon 12/146:00 am -
1 stop6h 29m
Deal found 10/7![Delta logo]()
$281
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:31 pm -
1 stop5h 02m
Tue 12/156:00 am -
1 stop6h 29m
Deal found 10/8![Delta logo]()
$281
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/24:30 pm -
2 stops6h 20m
Fri 11/65:10 pm -
1 stop8h 00m
Deal found 10/9![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/412:00 pm -
2 stops10h 25m
Wed 11/113:45 pm -
2 stops9h 11m
Deal found 10/7![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/296:00 am -
2 stops9h 22m
Tue 11/175:13 am -
2 stops9h 10m
Deal found 10/7![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/92:45 pm -
2 stops8h 10m
Fri 11/131:40 pm -
2 stops6h 30m
Deal found 10/9![Southwest logo]()
$386
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/95:30 pm -
1 stop5h 01m
Fri 11/136:00 am -
1 stop6h 15m
Deal found 10/9![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/104:39 pm -
2 stops16h 40m
Sat 11/1411:00 am -
2 stops9h 23m
Deal found 10/10![United Airlines logo]()
$544
This Mytrip deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Sun 10/254:30 pm -
3 stops24h 30m
Thu 10/299:15 am -
3 stops39h 01m
Deal found 10/10![Multiple Airlines logo]()
$1,181
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 10/248:00 am -
1 stop6h 43m
Wed 10/2810:56 am -
2 stops11h 44m
Deal found 10/9![United Airlines logo]()
$595
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/213:30 pm -
1 stop7h 01m
Mon 11/306:27 am -
1 stop6h 21m
Deal found 10/9![Delta logo]()
$478
Last-minute flights from St. Louis to MaineDiscover last-minute flight deals from St. Louis to Maine. Data last updated October 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Maine. Data last updated October 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/1412:00 pm -
2 stops10h 30m
Wed 10/215:19 am -
2 stops9h 01m
Deal found 10/7![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/1710:35 am -
1 stop4h 32m
Wed 10/215:19 am -
1 stop7h 28m
Deal found 10/7![Delta logo]()
$363
This American Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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.
Thu 10/295:08 pm -
1 stop5h 51m
Tue 11/174:24 pm -
1 stop6h 14m
Deal found 10/7![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 10/296:47 am -
2 stops7h 43m
Tue 11/175:13 am -
1 stop7h 35m
Deal found 10/7![Delta logo]()
$314
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/24:30 pm -
2 stops6h 20m
Fri 11/65:10 pm -
1 stop8h 00m
Deal found 10/9![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:47 am -
1 stop4h 10m
Thu 11/126:27 am -
1 stop6h 21m
Deal found 10/8![Delta logo]()
$281
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/57:30 am -
1 stop5h 46m
Mon 11/95:08 pm -
1 stop5h 32m
Deal found 10/8![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/76:47 am -
1 stop4h 35m
Sat 11/146:00 am -
1 stop8h 23m
Deal found 10/10![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/75:45 am -
2 stops8h 00m
Sat 11/145:25 am -
2 stops9h 45m
Deal found 10/10![Southwest logo]()
$349
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/96:00 am -
1 stop4h 53m
Fri 11/1312:50 pm -
1 stop7h 32m
Deal found 10/9![American Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/105:00 pm -
1 stop5h 25m
Tue 11/175:13 am -
1 stop7h 35m
Deal found 10/9![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/205:40 am -
2 stops9h 50m
Mon 11/235:10 pm -
1 stop8h 00m
Deal found 10/8![Southwest logo]()
$364
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 October 11, 2026.
Search for one-way flight options from St. Louis to Maine. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/96:34 pm -
2 stops37h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Multiple Airlines logo]()
$132
This American Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/46:00 am -
1 stop4h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![American Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/66:34 pm -
2 stops22h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Multiple Airlines logo]()
$145
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/46:20 am -
2 stops7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$146
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/57:30 am -
1 stop5h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![United Airlines logo]()
$170
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Mon 10/268:00 am -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![United Airlines logo]()
$171
This Delta deal was found by Cheapflights users on 10/6. 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 10/306:00 am -
1 stop6h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Delta logo]()
$180
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/64:40 pm -
2 stops6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 10/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:35 pm -
2 stops18h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Multiple Airlines logo]()
$194
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/235:00 pm -
1 stop5h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$196
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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.
Thu 10/297:16 am -
1 stop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/297:00 am -
2 stops8h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$324
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 October 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $269 (Delta) |
One-way from | $132 (Kiwi.com) |
Popular in | January |
Cheapest in | March |
Average price | $478 |
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 October 11, 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
Mon 11/9
6:34 pm-9:08 am
2 stops37h 34m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$132
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Thu 11/5
5:10 pm-11:55 pm
1 stop5h 45m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$141
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Tue 11/3
5:00 am-2:27 pm
2 stops8h 27m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$146
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Tue 10/27
2:10 pm-10:40 pm
2 stops7h 30m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$146
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Thu 11/5
5:00 am-2:27 pm
2 stops8h 27m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$175
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Fri 11/6
4:40 pm-11:55 pm
2 stops6h 15m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$185
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Mon 11/23
5:00 pm-11:21 pm
1 stop5h 21m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$196
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Sun 11/1
6:00 am-1:02 pm
1 stop6h 02m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$229
Quickest round-trip
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Thu 10/22
5:40 pm-11:36 pm
1 stop4h 56m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$255
St. LouisPortland
STL Lambert-St Louis - PWM Portland
STLPWM
Lambert-St Louis
Sun 11/8
12:14 pm-4:24 pm
3 stops51h 10m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$261
Showing 1-10 of 29 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-PWM
STL-BHB
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-PWM
STL-BHB
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 $339). 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 $382 and $509 in December.The cheapest round-trip price found within the last 5 days was $281 on Delta (Dec 5-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 5 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 October 11, 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.
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
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
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 October 11, 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 October 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$458 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$278 | Average$453 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$430 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$366 | Average$485 | FlexibilityNo cancel fee | On-time63% |