$93+ Cheap flights from Missouri 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
Jun 6 — Jun 131
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Missouri 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 Missouri to Maine
Cheapest
Best
Last-minute
One-way
Cheapest flights from Missouri to MaineExplore the most affordable flight options available from Missouri to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 7, 2026.
Explore the most affordable flight options available from Missouri to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 8/246:19 pm
MCI
- BOS
1 stop12h 33m
Frontier
Wed 9/26:00 am
BOS
- MCI
1 stop12h 24m
Frontier
Deal found 5/4![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Mon 6/16:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Mon 6/86:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/3![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 8/246:19 pm
MCI
- BOS
1 stop12h 33m
Frontier
Fri 8/286:00 am
BOS
- MCI
1 stop12h 24m
Frontier
Deal found 5/4![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 6/16:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Fri 6/512:01 pm
BOS
- MCI
1 stop6h 28m
Frontier
Deal found 5/4![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Fri 6/56:24 pm
MCI
- BOS
1 stop30h 00m
Frontier
Mon 6/86:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/3![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Mon 6/16:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Sat 6/66:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/5![Frontier logo]()
$197
This Frontier deal was found by Cheapflights users on 5/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:24 pm
MCI
- BOS
1 stop6h 00m
Frontier
Sat 5/2312:01 pm
BOS
- MCI
1 stop6h 28m
Frontier
Deal found 5/2![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Mon 6/86:24 pm
MCI
- BOS
1 stop12h 28m
Frontier
Fri 6/1212:01 pm
BOS
- MCI
1 stop6h 20m
Frontier
Deal found 5/6![Frontier logo]()
$213
This United Airlines deal was found by Cheapflights users on 5/4. 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 6/131:13 pm
STL
- BGR
1 stop7h 34m
United Airlines
Tue 6/167:06 pm
BGR
- STL
1 stop5h 30m
United Airlines
Deal found 5/4![United Airlines logo]()
$239
This American Airlines deal was found by Cheapflights users on 5/4. 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 5/276:00 am
STL
- BGR
1 stop4h 45m
American Airlines
Wed 6/32:22 pm
BGR
- STL
1 stop5h 38m
American Airlines
Deal found 5/4![American Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 5/5. 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.
Sat 9/121:30 pm
STL
- BGR
2 stops8h 58m
Delta
Sat 9/196:00 am
BGR
- STL
2 stops10h 57m
Delta
Deal found 5/5![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 5/4. 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 5/275:45 pm
STL
- BGR
1 stop4h 48m
Delta
Wed 6/35:05 am
BGR
- STL
2 stops9h 05m
Delta
Deal found 5/4![Delta logo]()
$278
Best flights from Missouri to MaineDiscover carefully curated flight deals from Missouri to Maine that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 7, 2026.
Discover carefully curated flight deals from Missouri to Maine that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 7, 2026.
This United Airlines deal was found by Cheapflights users on 5/4. 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 6/131:13 pm
STL
- BGR
1 stop7h 34m
United Airlines
Tue 6/167:06 pm
BGR
- STL
1 stop5h 30m
United Airlines
Deal found 5/4![United Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 5/2. 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 10/246:00 am
SGF
- BOS
1 stop8h 03m
Delta
Sat 10/314:20 pm
BOS
- SGF
1 stop7h 12m
Delta
Deal found 5/2![Delta logo]()
$295
This American Airlines deal was found by Cheapflights users on 5/4. 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 6/16:32 pm
COU
- PWM
1 stop5h 03m
American Airlines
Mon 6/85:58 pm
PWM
- COU
1 stop5h 48m
American Airlines
Deal found 5/4![American Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 5/2. 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.
Thu 5/287:40 pm
STL
- BOS
Nonstop2h 30m
Southwest
Mon 6/15:40 am
BOS
- STL
Nonstop3h 00m
Southwest
Deal found 5/2![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 5/2. 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 6/106:30 am
STL
- PWM
1 stop4h 25m
Delta
Tue 6/236:57 pm
PWM
- STL
1 stop5h 59m
Delta
Deal found 5/2![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 5/2. 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 10/173:16 pm
COU
- PWM
1 stop5h 11m
United Airlines
Wed 10/214:48 pm
PWM
- COU
1 stop5h 32m
United Airlines
Deal found 5/2![United Airlines logo]()
$328
This American Airlines deal was found by Cheapflights users on 5/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:42 pm
COU
- PWM
1 stop6h 23m
American Airlines
Wed 10/217:14 am
PWM
- COU
1 stop6h 49m
American Airlines
Deal found 5/5![American Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 5/4. 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 5/271:59 pm
STL
- BGR
2 stops8h 34m
Delta
Wed 6/35:05 am
BGR
- STL
2 stops8h 15m
Delta
Deal found 5/4![Delta logo]()
$308
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Wed 10/283:16 pm
COU
- PWM
1 stop5h 11m
United Airlines
Sat 10/319:45 am
PWM
- COU
1 stop5h 44m
United Airlines
Deal found 5/6![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 5/2. 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 5/2712:21 pm
MCI
- BGR
2 stops10h 12m
Delta
Tue 6/25:05 am
BGR
- MCI
2 stops9h 54m
Delta
Deal found 5/2![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 5/2. 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.
Wed 9/27:15 am
STL
- PWM
2 stops9h 00m
Southwest
Wed 9/95:45 am
PWM
- STL
2 stops9h 10m
Southwest
Deal found 5/2![Southwest logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/1. 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 6/36:15 am
STL
- BOS
1 stop7h 05m
American Airlines
Mon 6/87:46 pm
BOS
- STL
1 stop5h 30m
American Airlines
Deal found 5/1![American Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 5/6. 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.
Fri 7/174:05 pm
MCI
- PWM
2 stops7h 00m
Southwest
Wed 7/225:30 am
PWM
- MCI
1 stop5h 15m
Southwest
Deal found 5/6![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 5/5. 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 10/73:30 pm
SGF
- PWM
1 stop5h 53m
Delta
Wed 10/146:00 am
PWM
- SGF
1 stop6h 11m
Delta
Deal found 5/5![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 5/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:15 am
MCI
- BGR
1 stop5h 30m
American Airlines
Sun 5/314:23 pm
BGR
- MCI
1 stop7h 34m
American Airlines
Deal found 5/6![American Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Tue 6/26:00 am
STL
- PWM
1 stop6h 25m
United Airlines
Wed 6/35:15 am
PWM
- STL
2 stops11h 31m
United Airlines
Deal found 5/2![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 5/6. 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 10/236:00 am
SGF
- PWM
1 stop5h 18m
Delta
Wed 10/286:00 am
PWM
- SGF
1 stop6h 11m
Delta
Deal found 5/6![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 5/6. 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 6/187:55 pm
STL
- BOS
Nonstop2h 30m
Southwest
Tue 6/235:50 am
BOS
- STL
Nonstop2h 55m
Southwest
Deal found 5/6![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 5/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:05 am
MCI
- PWM
1 stop6h 20m
United Airlines
Tue 7/145:15 am
PWM
- MCI
2 stops8h 07m
United Airlines
Deal found 5/5![United Airlines logo]()
$395
This Southwest deal was found by Cheapflights users on 5/2. 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.
Wed 6/105:40 am
STL
- BOS
1 stop4h 15m
Southwest
Mon 6/155:35 am
BOS
- STL
Nonstop2h 50m
Southwest
Deal found 5/2![Southwest logo]()
$399
This Delta deal was found by Cheapflights users on 5/2. 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 6/36:00 am
STL
- BOS
1 stop5h 20m
Delta
Wed 6/109:15 am
BOS
- STL
1 stop4h 54m
Delta
Deal found 5/2![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 5/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:13 pm
SGF
- PWM
2 stops9h 38m
American Airlines
Sat 8/226:00 am
PWM
- SGF
2 stops8h 54m
American Airlines
Deal found 5/6![American Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 5/4. 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.
Tue 6/303:15 pm
STL
- BOS
2 stops7h 05m
Southwest
Wed 7/155:35 am
BOS
- STL
2 stops10h 15m
Southwest
Deal found 5/4![Southwest logo]()
$404
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Wed 6/103:25 pm
COU
- BOS
1 stop5h 31m
United Airlines
Sat 6/136:40 pm
BOS
- COU
1 stop5h 53m
United Airlines
Deal found 5/4![United Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 5/4. 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.
Fri 10/93:30 pm
SGF
- PWM
1 stop5h 53m
Delta
Thu 10/156:00 am
PWM
- SGF
1 stop6h 11m
Delta
Deal found 5/4![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 5/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:24 am
SGF
- PWM
2 stops7h 50m
American Airlines
Wed 10/282:55 pm
PWM
- SGF
1 stop7h 50m
American Airlines
Deal found 5/2![American Airlines logo]()
$443
This Southwest deal was found by Cheapflights users on 5/5. 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 6/15:50 pm
MCI
- BOS
1 stop4h 20m
Southwest
Sat 6/62:45 pm
BOS
- MCI
Nonstop3h 25m
Southwest
Deal found 5/5![Southwest logo]()
$405
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Wed 7/156:00 am
STL
- PWM
1 stop7h 31m
United Airlines
Tue 7/215:15 am
PWM
- STL
3 stops11h 31m
United Airlines
Deal found 5/6![United Airlines logo]()
$419
This Southwest deal was found by Cheapflights users on 5/1. 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.
Mon 6/17:40 pm
STL
- BOS
Nonstop2h 30m
Southwest
Fri 6/56:50 pm
BOS
- STL
Nonstop3h 05m
Southwest
Deal found 5/1![Southwest logo]()
$407
This American Airlines deal was found by Cheapflights users on 5/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:16 am
COU
- BOS
1 stop5h 17m
American Airlines
Sun 6/145:00 am
BOS
- COU
1 stop6h 06m
American Airlines
Deal found 5/6![American Airlines logo]()
$459
Last-minute flights from Missouri to MaineDiscover last-minute flight deals from Missouri to Maine. Data last updated May 7, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Maine. Data last updated May 7, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:24 pm
MCI
- BOS
1 stop6h 00m
Frontier
Sat 5/2312:01 pm
BOS
- MCI
1 stop6h 28m
Frontier
Deal found 5/2![Frontier logo]()
$205
This American Airlines deal was found by Cheapflights users on 5/4. 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 5/276:00 am
STL
- BGR
1 stop4h 45m
American Airlines
Wed 6/32:22 pm
BGR
- STL
1 stop5h 38m
American Airlines
Deal found 5/4![American Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 5/4. 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 5/275:45 pm
STL
- BGR
1 stop4h 48m
Delta
Wed 6/35:05 am
BGR
- STL
2 stops9h 05m
Delta
Deal found 5/4![Delta logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Mon 6/16:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Mon 6/86:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/3![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 6/16:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Fri 6/512:01 pm
BOS
- MCI
1 stop6h 28m
Frontier
Deal found 5/4![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Mon 6/16:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Sat 6/66:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/5![Frontier logo]()
$197
This Frontier deal was found by Cheapflights users on 5/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:24 pm
MCI
- BOS
1 stop6h 00m
Frontier
Sat 6/66:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/5![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Fri 6/56:24 pm
MCI
- BOS
1 stop30h 00m
Frontier
Mon 6/86:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/3![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Mon 6/86:24 pm
MCI
- BOS
1 stop12h 28m
Frontier
Fri 6/1212:01 pm
BOS
- MCI
1 stop6h 20m
Frontier
Deal found 5/6![Frontier logo]()
$213
This American Airlines deal was found by Cheapflights users on 5/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:12 pm
SGF
- BOS
1 stop5h 28m
American Airlines
Sat 7/45:10 am
BOS
- SGF
1 stop6h 07m
American Airlines
Deal found 5/5![American Airlines logo]()
$295
This United Airlines deal was found by Cheapflights users on 5/4. 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 6/131:13 pm
STL
- BGR
1 stop7h 34m
United Airlines
Tue 6/167:06 pm
BGR
- STL
1 stop5h 30m
United Airlines
Deal found 5/4![United Airlines logo]()
$239
This American Airlines deal was found by Cheapflights users on 5/3. 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.
Fri 6/195:40 pm
STL
- BGR
1 stop5h 05m
American Airlines
Wed 6/245:45 am
BGR
- STL
1 stop5h 52m
American Airlines
Deal found 5/3![American Airlines logo]()
$289
One-way flights from Missouri to MaineSearch for one-way flight options from Missouri to Maine. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
Search for one-way flight options from Missouri to Maine. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
This Trip.com deal was found by Cheapflights users on 5/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Deal found 5/1![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Wed 6/106:16 pm
MCI
- BOS
1 stop30h 11m
Frontier
Deal found 5/4![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 5/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:24 pm
MCI
- BOS
1 stop6h 00m
Frontier
Deal found 5/1![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 7/36:16 pm
MCI
- BOS
1 stop12h 32m
Frontier
Deal found 5/4![Frontier logo]()
$104
This Priceline deal was found by Cheapflights users on 5/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:16 pm
MCI
- BOS
1 stop6h 07m
Frontier
Deal found 5/4![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 5/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:24 pm
MCI
- BOS
1 stop12h 25m
Frontier
Deal found 5/6![Frontier logo]()
$111
This Priceline deal was found by Cheapflights users on 5/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:24 pm
MCI
- BOS
1 stop6h 00m
Frontier
Deal found 5/6![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Fri 6/56:24 pm
MCI
- BOS
1 stop30h 00m
Frontier
Deal found 5/6![Frontier logo]()
$122
This Frontier deal was found by Cheapflights users on 5/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:24 pm
MCI
- BOS
1 stop6h 00m
Frontier
Deal found 5/6![Frontier logo]()
$125
This Priceline deal was found by Cheapflights users on 5/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:27 pm
STL
- BOS
1 stop6h 57m
Frontier
Deal found 5/6![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 5/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:16 pm
MCI
- BOS
1 stop12h 36m
Frontier
Deal found 5/6![Frontier logo]()
$131
This Frontier deal was found by Cheapflights users on 5/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:33 pm
STL
- BOS
1 stop12h 16m
Frontier
Deal found 5/6![Frontier logo]()
$131
Find flight deals from Missouri to Maine
Keep the following information in mind while searching for Missouri to Maine flight deals. Data was last updated May 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $164 (Kiwi.com) |
One-way from | $93 (Trip.com) |
Popular in | January |
Cheapest in | March |
Average price | $406 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri 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 May 7, 2026.
Use the filters below to find and compare flights from Missouri 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 6/13
1:13 pm-9:47 pm
1 stop7h 34m
Bangor
Tue 6/16
7:06 pm-11:36 pm
1 stop5h 30m
$239
SpringfieldBoston
SGF - BOS
SGFBOS
Springfield-Branson
Sat 10/24
6:00 am-3:03 pm
1 stop8h 03m
Boston Logan Intl
Sat 10/31
4:20 pm-10:32 pm
1 stop7h 12m
$295
St. LouisPortland
STL - PWM
STLPWM
Lambert-St Louis
Wed 6/10
6:30 am-11:55 am
1 stop4h 25m
Portland
Tue 6/23
6:57 pm-11:56 pm
1 stop5h 59m
$299
St. LouisBangor
STL - BGR
STLBGR
Lambert-St Louis
Wed 5/27
1:59 pm-11:33 pm
2 stops8h 34m
Bangor
Wed 6/3
5:05 am-12:20 pm
2 stops8h 15m
$308
Kansas CityBangor
MCI - BGR
MCIBGR
Kansas City
Wed 5/27
12:21 pm-11:33 pm
2 stops10h 12m
Bangor
Tue 6/2
5:05 am-1:59 pm
2 stops9h 54m
$316
ColumbiaPortland
COU - PWM
COUPWM
Columbia Regional
Mon 6/1
6:32 pm-12:35 am
1 stop5h 03m
Portland
Mon 6/8
5:58 pm-10:46 pm
1 stop5h 48m
$328
ColumbiaPortland
COU - PWM
COUPWM
Columbia Regional
Sat 10/17
3:16 pm-9:27 pm
1 stop5h 11m
Portland
Wed 10/21
4:48 pm-9:20 pm
1 stop5h 32m
$328
ColumbiaPortland
COU - PWM
COUPWM
Columbia Regional
Sat 10/17
2:42 pm-10:05 pm
1 stop6h 23m
Portland
Wed 10/21
7:14 am-1:03 pm
1 stop6h 49m
$328
ColumbiaPortland
COU - PWM
COUPWM
Columbia Regional
Wed 10/28
3:16 pm-9:27 pm
1 stop5h 11m
Portland
Sat 10/31
9:45 am-2:29 pm
1 stop5h 44m
$328
SpringfieldPortland
SGF - PWM
SGFPWM
Springfield-Branson
Wed 10/7
3:30 pm-10:23 pm
1 stop5h 53m
Portland
Wed 10/14
6:00 am-11:11 am
1 stop6h 11m
$329
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Maine
Have a flexible travel schedule? Discover the best time to fly to Maine from Missouri with our price prediction graph.
MCI-BOS
STL-BGR
SGF-BOS
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 Missouri to Maine
USMO-USME
MCI-BOS
STL-BGR
SGF-BOS
STL-BOS
How far ahead should I book a flight from Missouri to Maine?
The price you pay for your flight from Missouri to Maine may vary depending on when you book. For the best chance of a lower fare, look to book 36 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Missouri to Maine?
Currently, July is the cheapest month in which you can book a flight from Missouri to Maine (average of $128). Flying from Missouri to Maine in March is currently the most expensive (average of $288). 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 Missouri to Maine?
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 May 7, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Missouri to Maine by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Missouri 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
Return Flight Options
Top destinations
Alternative routes for Missouri 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 Missouri to Maine by cabin class
Find flights from Missouri to Maine, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Maine flights
Browse other Missouri and Maine flight options. Last updated on May 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Maine
Find the right flight back to Missouri after your stay in Maine
Missouri to Maine flights
Consider these flights traveling from Missouri to Maine.
Top 4 airlines flying from Missouri to Maine
Discover the top 4 airlines that operate flights from Missouri 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 May 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$404 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$212 | Average$469 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$258 | Average$455 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$284 | Average$525 | FlexibilityNo cancel fee | On-time63% |