$111+ Cheap flights from Missouri to Boston (BOS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — BOS
Aug 18 — Aug 251
Round-trip
1 adult, Economy
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Cheapest flights from Missouri to BostonExplore the most affordable flight options available from Missouri to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
Explore the most affordable flight options available from Missouri to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:11 pm
MCI
- BOS
1 stop15h 41m
Multiple Airlines
Thu 10/2212:34 pm
BOS
- MCI
1 stop22h 32m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:11 pm
MCI
- BOS
1 stop15h 41m
Multiple Airlines
Thu 10/2212:34 pm
BOS
- MCI
1 stop22h 32m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/99:16 am
MCI
- BOS
1 stop23h 13m
Allegiant Air
Sun 10/1812:34 pm
BOS
- MCI
1 stop20h 52m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:11 pm
MCI
- BOS
1 stop16h 54m
Multiple Airlines
Thu 10/112:34 pm
BOS
- MCI
1 stop21h 12m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:11 pm
MCI
- BOS
1 stop16h 54m
Multiple Airlines
Thu 10/112:34 pm
BOS
- MCI
1 stop21h 12m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:11 pm
MCI
- BOS
1 stop15h 41m
Multiple Airlines
Sun 10/1812:34 pm
BOS
- MCI
1 stop20h 52m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:11 pm
MCI
- BOS
1 stop15h 41m
Multiple Airlines
Sun 10/1812:34 pm
BOS
- MCI
1 stop20h 52m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/146:11 pm
MCI
- BOS
2 stops15h 21m
Multiple Airlines
Thu 10/2212:34 pm
BOS
- MCI
1 stop22h 32m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:41 pm
STL
- BOS
2 stops40h 24m
Frontier
Tue 9/221:00 pm
BOS
- STL
1 stop21h 40m
Frontier
Deal found 7/16![Frontier logo]()
$306
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:13 pm
STL
- BOS
1 stop5h 41m
American Airlines
Mon 9/217:17 pm
BOS
- STL
1 stop6h 10m
American Airlines
Deal found 7/15![American Airlines logo]()
$307
This Frontier deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/28:34 pm
STL
- BOS
1 stop12h 35m
Frontier
Mon 10/129:15 am
BOS
- STL
1 stop11h 24m
Frontier
Deal found 7/15![Frontier logo]()
$308
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/126:00 am
COU
- BOS
1 stop8h 03m
American Airlines
Sat 8/157:24 am
BOS
- COU
1 stop6h 04m
American Airlines
Deal found 7/15![American Airlines logo]()
$308
Best flights from Missouri to BostonDiscover carefully curated flight deals from Missouri to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
Discover carefully curated flight deals from Missouri to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:12 pm
COU
- BOS
1 stop5h 47m
United Airlines
Tue 9/298:00 am
BOS
- COU
1 stop7h 38m
United Airlines
Deal found 7/16![United Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/111:20 pm
STL
- BOS
Nonstop2h 35m
Southwest
Thu 8/135:25 am
BOS
- STL
1 stop5h 45m
Southwest
Deal found 7/15![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:58 pm
SGF
- BOS
1 stop5h 27m
Delta
Fri 8/214:25 pm
BOS
- SGF
1 stop6h 56m
Delta
Deal found 7/16![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:43 pm
COU
- BOS
1 stop4h 57m
American Airlines
Sat 8/1511:58 am
BOS
- COU
1 stop6h 59m
American Airlines
Deal found 7/19![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 10/173:19 pm
COU
- BOS
1 stop5h 40m
United Airlines
Sat 10/247:01 am
BOS
- COU
1 stop8h 37m
United Airlines
Deal found 7/14![United Airlines logo]()
$308
This Delta deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:00 pm
SGF
- BOS
1 stop7h 38m
Delta
Sun 9/135:30 am
BOS
- SGF
1 stop6h 12m
Delta
Deal found 7/18![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 8/172:45 pm
STL
- BOS
2 stops6h 25m
Southwest
Fri 8/2112:40 pm
BOS
- STL
2 stops7h 30m
Southwest
Deal found 7/14![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:30 am
JLN
- BOS
1 stop8h 06m
United Airlines
Fri 8/218:05 am
BOS
- JLN
1 stop6h 13m
United Airlines
Deal found 7/17![United Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:38 am
SGF
- BOS
1 stop6h 57m
Delta
Mon 9/148:00 am
BOS
- SGF
1 stop7h 34m
Delta
Deal found 7/18![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 10/176:05 am
COU
- BOS
2 stops7h 21m
American Airlines
Sat 10/2410:13 am
BOS
- COU
2 stops8h 41m
American Airlines
Deal found 7/14![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:45 pm
STL
- BOS
2 stops6h 25m
Southwest
Sat 8/298:10 am
BOS
- STL
2 stops6h 15m
Southwest
Deal found 7/17![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 9/106:15 am
COU
- BOS
2 stops7h 35m
United Airlines
Thu 9/177:05 am
BOS
- COU
1 stop8h 25m
United Airlines
Deal found 7/14![United Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/88:30 am
STL
- BOS
2 stops8h 00m
Southwest
Wed 8/125:25 am
BOS
- STL
2 stops7h 45m
Southwest
Deal found 7/15![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:30 pm
MCI
- BOS
Nonstop3h 09m
Delta
Tue 10/204:05 pm
BOS
- MCI
Nonstop3h 28m
Delta
Deal found 7/19![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:20 am
STL
- BOS
Nonstop2h 35m
Southwest
Tue 9/295:35 am
BOS
- STL
Nonstop2h 50m
Southwest
Deal found 7/18![Southwest logo]()
$374
This American Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 10/1010:40 am
COU
- BOS
1 stop7h 38m
American Airlines
Mon 10/191:33 pm
BOS
- COU
1 stop8h 22m
American Airlines
Deal found 7/14![American Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:00 am
STL
- BOS
1 stop7h 57m
Delta
Sun 9/275:40 am
BOS
- STL
1 stop4h 49m
Delta
Deal found 7/17![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/283:12 pm
COU
- BOS
1 stop7h 22m
United Airlines
Sun 8/3011:00 am
BOS
- COU
3 stops12h 55m
United Airlines
Deal found 7/15![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:30 am
STL
- BOS
2 stops10h 45m
Southwest
Sat 9/195:50 am
BOS
- STL
2 stops8h 35m
Southwest
Deal found 7/14![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/167:30 pm
MCI
- BOS
Nonstop3h 09m
Delta
Mon 10/196:10 am
BOS
- MCI
Nonstop3h 35m
Delta
Deal found 7/15![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/177:32 am
JLN
- BOS
1 stop7h 49m
United Airlines
Wed 10/216:00 am
BOS
- JLN
1 stop7h 09m
United Airlines
Deal found 7/15![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:20 am
MCI
- BOS
2 stops6h 50m
Southwest
Tue 9/228:30 am
BOS
- MCI
1 stop6h 40m
Southwest
Deal found 7/17![Southwest logo]()
$402
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 8/128:00 am
STL
- BOS
2 stops7h 42m
United Airlines
Thu 8/2010:38 am
BOS
- STL
1 stop6h 00m
United Airlines
Deal found 7/14![United Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/1712:45 pm
MCI
- BOS
Nonstop3h 11m
Delta
Sun 10/186:10 am
BOS
- MCI
Nonstop3h 35m
Delta
Deal found 7/15![Delta logo]()
$418
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:30 pm
STL
- BOS
2 stops6h 35m
Southwest
Sun 10/115:35 am
BOS
- STL
2 stops7h 00m
Southwest
Deal found 7/16![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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.
Sun 10/117:30 pm
MCI
- BOS
Nonstop3h 09m
Delta
Sat 10/249:25 am
BOS
- MCI
Nonstop3h 35m
Delta
Deal found 7/15![Delta logo]()
$418
This United Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/245:30 am
SGF
- BOS
2 stops11h 07m
United Airlines
Sat 10/316:00 am
BOS
- SGF
1 stop5h 34m
United Airlines
Deal found 7/15![United Airlines logo]()
$424
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 8/288:30 am
STL
- BOS
2 stops10h 45m
Southwest
Fri 9/118:40 am
BOS
- STL
2 stops12h 15m
Southwest
Deal found 7/14![Southwest logo]()
$404
This United Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/217:32 am
JLN
- BOS
2 stops10h 53m
United Airlines
Fri 10/306:00 am
BOS
- JLN
1 stop7h 22m
United Airlines
Deal found 7/15![United Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:26 pm
MCI
- BOS
1 stop6h 32m
Delta
Sat 10/109:25 am
BOS
- MCI
Nonstop3h 35m
Delta
Deal found 7/17![Delta logo]()
$444
Last-minute flights from Missouri to BostonDiscover last-minute flight deals from Missouri to Boston. Data last updated July 19, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Boston. Data last updated July 19, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:17 pm
MCI
- BOS
1 stop12h 25m
Frontier
Wed 8/128:41 am
BOS
- MCI
2 stops9h 29m
Frontier
Deal found 7/16![Frontier logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/106:17 pm
MCI
- BOS
1 stop15h 40m
Frontier
Mon 8/1711:59 am
BOS
- MCI
1 stop6h 11m
Frontier
Deal found 7/15![Frontier logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/106:17 pm
MCI
- BOS
1 stop15h 40m
Frontier
Wed 8/128:41 am
BOS
- MCI
2 stops9h 29m
Frontier
Deal found 7/15![Frontier logo]()
$307
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/126:00 am
COU
- BOS
1 stop8h 03m
American Airlines
Sat 8/157:24 am
BOS
- COU
1 stop6h 04m
American Airlines
Deal found 7/15![American Airlines logo]()
$308
This CheapOair deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:09 pm
STL
- BOS
1 stop16h 00m
Frontier
Sat 8/1510:04 am
BOS
- STL
1 stop14h 55m
Frontier
Deal found 7/15![Frontier logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/146:17 pm
MCI
- BOS
1 stop12h 25m
Frontier
Mon 8/1711:59 am
BOS
- MCI
1 stop6h 11m
Frontier
Deal found 7/15![Frontier logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/146:17 pm
MCI
- BOS
1 stop12h 25m
Frontier
Sun 8/2312:45 pm
BOS
- MCI
1 stop22h 56m
Frontier
Deal found 7/15![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:34 pm
STL
- BOS
1 stop12h 12m
Frontier
Sun 8/239:36 am
BOS
- STL
1 stop8h 46m
Frontier
Deal found 7/17![Frontier logo]()
$308
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/229:32 am
STL
- BOS
1 stop7h 02m
American Airlines
Sat 8/295:07 pm
BOS
- STL
1 stop7h 27m
American Airlines
Deal found 7/15![American Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:26 am
MCI
- BOS
1 stop23h 21m
Frontier
Tue 9/112:45 pm
BOS
- MCI
1 stop22h 56m
Frontier
Deal found 7/17![Frontier logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:26 am
MCI
- BOS
2 stops23h 24m
Frontier
Tue 9/112:45 pm
BOS
- MCI
1 stop22h 56m
Frontier
Deal found 7/17![Frontier logo]()
$299
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:00 pm
STL
- BOS
Nonstop2h 44m
American Airlines
Sun 9/68:27 am
BOS
- STL
1 stop8h 53m
American Airlines
Deal found 7/18![American Airlines logo]()
$309
One-way flights from Missouri to BostonSearch for one-way flight options from Missouri to Boston. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
Search for one-way flight options from Missouri to Boston. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:16 am
MCI
- BOS
1 stop23h 13m
Allegiant Air
Deal found 7/18![Allegiant Air logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 8/143:11 pm
MCI
- BOS
1 stop17h 58m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:56 am
MCI
- BOS
1 stop21h 33m
Allegiant Air
Deal found 7/19![Allegiant Air logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:11 pm
MCI
- BOS
1 stop15h 41m
Frontier
Deal found 7/14![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 11/64:12 pm
MCI
- BOS
2 stops16h 17m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:11 pm
MCI
- BOS
1 stop15h 41m
Frontier
Deal found 7/16![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:11 pm
MCI
- BOS
1 stop16h 54m
Frontier
Deal found 7/15![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:11 pm
MCI
- BOS
1 stop15h 41m
Frontier
Deal found 7/14![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/146:17 pm
MCI
- BOS
1 stop12h 25m
Frontier
Deal found 7/15![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:11 pm
MCI
- BOS
1 stop16h 54m
Frontier
Deal found 7/18![Frontier logo]()
$138
This Southwest deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 9/236:40 pm
STL
- BOS
Nonstop2h 35m
Southwest
Deal found 7/15![Southwest logo]()
$159
This Frontier deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/166:34 pm
STL
- BOS
1 stop12h 12m
Frontier
Deal found 7/15![Frontier logo]()
$160
Find flight deals from Missouri to Boston
Keep the following information in mind while searching for Missouri to Boston flight deals. Data was last updated July 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $235 (Kiwi.com) |
One-way from | $111 (Kiwi.com) |
Popular in | February |
Cheapest in | September |
Average price | $494 |
Good round-trip deal | $433 or less |
Good one-way deal | $231 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Boston 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 19, 2026.
Use the filters below to find and compare flights from Missouri to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ColumbiaBoston
COU - BOS
COUBOS
Columbia Regional
Tue 9/22
3:12 pm-9:59 pm
1 stop5h 47m
Boston Logan Intl
Tue 9/29
8:00 am-2:38 pm
1 stop7h 38m
$308
ColumbiaBoston
COU - BOS
COUBOS
Columbia Regional
Sat 10/17
3:19 pm-9:59 pm
1 stop5h 40m
Boston Logan Intl
Sat 10/24
7:01 am-2:38 pm
1 stop8h 37m
$308
JoplinBoston
JLN - BOS
JLNBOS
Joplin
Sat 8/15
8:30 am-5:36 pm
1 stop8h 06m
Boston Logan Intl
Fri 8/21
8:05 am-1:18 pm
1 stop6h 13m
$324
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Tue 8/11
1:20 pm-4:55 pm
Nonstop2h 35m
Boston Logan Intl
Thu 8/13
5:25 am-10:10 am
1 stop5h 45m
$327
SpringfieldBoston
SGF - BOS
SGFBOS
Springfield-Branson
Fri 8/14
6:58 pm-1:25 am
1 stop5h 27m
Boston Logan Intl
Fri 8/21
4:25 pm-10:21 pm
1 stop6h 56m
$329
SpringfieldBoston
SGF - BOS
SGFBOS
Springfield-Branson
Sat 9/5
4:00 pm-12:38 am
1 stop7h 38m
Boston Logan Intl
Sun 9/13
5:30 am-10:42 am
1 stop6h 12m
$329
SpringfieldBoston
SGF - BOS
SGFBOS
Springfield-Branson
Sat 9/5
11:38 am-7:35 pm
1 stop6h 57m
Boston Logan Intl
Mon 9/14
8:00 am-2:34 pm
1 stop7h 34m
$329
ColumbiaBoston
COU - BOS
COUBOS
Columbia Regional
Thu 9/10
6:15 am-2:50 pm
2 stops7h 35m
Boston Logan Intl
Thu 9/17
7:05 am-2:30 pm
1 stop8h 25m
$346
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Mon 8/17
2:45 pm-10:10 pm
2 stops6h 25m
Boston Logan Intl
Fri 8/21
12:40 pm-7:10 pm
2 stops7h 30m
$353
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Thu 8/27
2:45 pm-10:10 pm
2 stops6h 25m
Boston Logan Intl
Sat 8/29
8:10 am-1:25 pm
2 stops6h 15m
$353
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Missouri with our price prediction graph.
STL-BOS
MCI-BOS
COU-BOS
SGF-BOS
JLN-BOS
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 Boston
USMO-BOS
STL-BOS
MCI-BOS
COU-BOS
SGF-BOS
What is the cheapest month to book a flight from Missouri to Boston?
Currently, September is the cheapest month in which you can book a flight from Missouri to Boston (average of $428). Flying from Missouri to Boston in February is currently the most expensive (average of $619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from MO to BOS?
Find hourly flight availability from Missouri to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 19, 2026.
A simple way to save on the total cost of your ticket is to fly from Missouri to Boston in the afternoon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight at noon.
Weekly flight availability from Missouri to Boston
Explore weekly flight availability from Missouri to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 19, 2026.
The most flights from USMO to BOS are scheduled on a Sunday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Missouri to Boston?
How far ahead should I book a flight from Missouri to Boston?
The price you pay for your flight from Missouri to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Missouri to Boston?
Use this chart to determine the cheapest time to fly round-trip from Missouri to Boston. Price data was last updated on July 18, 2026.
Travelers seeking maximum savings on their Missouri to Boston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Cambridge
Concord
Brockton
Seekonk
Hampton Beach
Cranston
Dedham
Warwick
Peabody
Auburn
York Beach
Chelsea
Londonderry
Swansea
Fitchburg
North Falmouth
Braintree
Sandwich
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
Boston flight routes
Complete your trip
Flights by cabin class
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Top destinations
Alternative routes for Missouri to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 19, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Boston by cabin class
Find flights from Missouri to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Boston flights
Browse other Missouri and Boston flight options. Last updated on July 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Missouri to Boston flights
Consider these flights traveling from Missouri to Boston.
Top 6 airlines flying from Missouri to Boston
Discover the top 6 airlines that operate flights from Missouri to Boston. 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$260 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$465 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$216 | Average$451 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$254 | Average$482 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$316 | Average$431 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$324 | Average$496 | FlexibilityNo cancel fee | On-time63% |