$124+ Cheap flights from Missouri to Boston (BOS)
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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Oct 18 — Oct 251
Round-trip
1 adult, Economy
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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
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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 September 18, 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 September 18, 2026.
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:22 am -
1 stop8h 03m
Tue 10/135:54 am -
1 stop6h 32m
Deal found 9/17![American Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 9/18. 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.
Sat 10/2410:40 am -
Nonstop3h 05m
Fri 10/302:45 pm -
Nonstop3h 30m
Deal found 9/18![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/289:40 am -
Nonstop3h 09m
Wed 11/49:05 am -
Nonstop3h 35m
Deal found 9/16![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 9/16. 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.
Sat 10/2410:40 am -
Nonstop3h 05m
Wed 10/281:15 pm -
Nonstop3h 30m
Deal found 9/16![Southwest logo]()
$320
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 11/96:20 pm -
Nonstop2h 38m
Wed 11/113:25 pm -
Nonstop3h 22m
Deal found 9/15![American Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/3110:00 am -
Nonstop2h 44m
Mon 11/23:25 pm -
Nonstop3h 22m
Deal found 9/14![American Airlines logo]()
$324
This Frontier deal was found by Cheapflights users on 9/17. 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.
Thu 11/197:24 pm -
1 stop11h 17m
Sun 11/2211:06 am -
1 stop13h 53m
Deal found 9/17![Frontier logo]()
$325
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:30 pm -
1 stop17h 32m
Fri 10/2311:47 am -
1 stop12h 26m
Deal found 9/16![Frontier logo]()
$326
This Delta deal was found by Cheapflights users on 9/16. 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.
Tue 10/137:30 pm -
Nonstop3h 09m
Tue 10/206:10 am -
Nonstop3h 35m
Deal found 9/16![Delta logo]()
$328
This CheapOair deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:30 pm -
1 stop17h 32m
Fri 10/2311:47 am -
1 stop12h 26m
Deal found 9/13![Frontier logo]()
$328
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/2810:34 am -
1 stop7h 31m
Tue 11/39:05 am -
Nonstop3h 35m
Deal found 9/16![Delta logo]()
$329
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Thu 10/224:30 pm -
1 stop17h 32m
Sun 10/2511:47 am -
1 stop12h 26m
Deal found 9/15![Frontier logo]()
$329
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 September 18, 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 September 18, 2026.
This Delta deal was found by Cheapflights users on 9/17. 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 10/245:40 pm -
1 stop5h 40m
Fri 10/305:30 am -
1 stop7h 00m
Deal found 9/17![Delta logo]()
$332
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/3110:00 am -
2 stops6h 40m
Mon 11/27:45 pm -
1 stop5h 20m
Deal found 9/17![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 11/98:00 am -
1 stop6h 54m
Sun 11/156:36 pm -
1 stop5h 22m
Deal found 9/16![United Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/2410:40 am -
2 stops7h 49m
Wed 10/281:41 pm -
2 stops8h 14m
Deal found 9/14![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 9/15. 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 10/1311:25 am -
1 stop4h 45m
Tue 10/206:45 am -
2 stops9h 15m
Deal found 9/15![Southwest logo]()
$352
This Delta deal was found by Cheapflights users on 9/17. 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 11/712:55 pm -
Nonstop3h 10m
Tue 11/105:40 pm -
1 stop7h 15m
Deal found 9/17![Delta logo]()
$353
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:36 am -
1 stop5h 32m
Sun 11/154:41 pm -
1 stop6h 59m
Deal found 9/17![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/296:15 am -
1 stop5h 33m
Sat 10/36:43 pm -
1 stop5h 12m
Deal found 9/14![United Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 9/15. 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.
Thu 11/58:25 am -
1 stop7h 45m
Mon 11/95:10 am -
Nonstop3h 05m
Deal found 9/15![Southwest logo]()
$355
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:18 pm -
1 stop6h 55m
Sat 11/1410:10 am -
1 stop5h 46m
Deal found 9/14![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/317:35 am -
2 stops9h 10m
Sat 11/74:56 pm -
1 stop5h 45m
Deal found 9/13![United Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Tue 11/106:15 am -
1 stop7h 16m
Sun 11/153:21 pm -
1 stop7h 54m
Deal found 9/18![American Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 9/16. 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.
Thu 11/127:45 pm -
Nonstop2h 58m
Mon 11/164:05 pm -
Nonstop3h 45m
Deal found 9/16![Delta logo]()
$367
This Southwest deal was found by Cheapflights users on 9/17. 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.
Fri 11/64:40 pm -
2 stops6h 15m
Mon 11/97:30 pm -
1 stop5h 25m
Deal found 9/17![Southwest logo]()
$372
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 11/1110:24 am -
2 stops7h 27m
Sun 11/154:41 pm -
1 stop6h 34m
Deal found 9/13![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 9/15. 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 10/2412:33 pm -
1 stop5h 21m
Mon 10/266:10 am -
Nonstop3h 35m
Deal found 9/15![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 12/53:04 pm -
1 stop5h 49m
Wed 12/911:45 am -
1 stop10h 54m
Deal found 9/13![United Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 9/14. 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.
Sat 10/244:10 pm -
1 stop5h 00m
Mon 10/267:50 pm -
1 stop5h 40m
Deal found 9/14![Southwest logo]()
$393
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/295:44 am -
2 stops8h 02m
Sat 10/31:56 pm -
2 stops7h 50m
Deal found 9/14![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 9/17. 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.
Sun 10/117:30 pm -
Nonstop3h 09m
Wed 10/145:39 am -
1 stop5h 08m
Deal found 9/17![Delta logo]()
$392
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/143:14 pm -
1 stop7h 10m
Wed 10/219:51 am -
2 stops10h 55m
Deal found 9/16![United Airlines logo]()
$434
This Southwest deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:30 am -
Nonstop3h 05m
Mon 11/27:30 pm -
1 stop5h 40m
Deal found 9/13![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/116:01 am -
1 stop6h 58m
Mon 11/164:45 pm -
1 stop7h 59m
Deal found 9/15![United Airlines logo]()
$435
This Southwest deal was found by Cheapflights users on 9/15. 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.
Fri 11/65:50 pm -
1 stop4h 55m
Sun 11/85:10 am -
1 stop5h 25m
Deal found 9/15![Southwest logo]()
$409
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/287:00 am -
1 stop5h 29m
Sun 11/18:00 am -
1 stop6h 20m
Deal found 9/16![Delta logo]()
$426
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Mon 11/98:00 am -
2 stops8h 44m
Wed 11/116:00 am -
1 stop5h 32m
Deal found 9/17![United Airlines logo]()
$444
This Southwest deal was found by Cheapflights users on 9/15. 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 10/1311:30 am -
Nonstop3h 05m
Tue 10/205:35 am -
1 stop5h 30m
Deal found 9/15![Southwest logo]()
$418
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 1/271:33 pm -
1 stop9h 22m
Sat 1/306:00 am -
1 stop7h 19m
Deal found 9/16![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 9/16. 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.
Thu 10/810:00 am -
1 stop6h 30m
Wed 10/149:15 am -
1 stop5h 38m
Deal found 9/16![Delta logo]()
$445
This Southwest deal was found by Cheapflights users on 9/16. 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.
Sun 11/153:50 pm -
1 stop5h 45m
Thu 11/197:10 am -
1 stop5h 25m
Deal found 9/16![Southwest logo]()
$418
Last-minute flights from Missouri to BostonDiscover last-minute flight deals from Missouri to Boston. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Boston. Data last updated September 18, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:22 am -
1 stop8h 03m
Tue 10/135:54 am -
1 stop6h 32m
Deal found 9/17![American Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/16. 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.
Tue 10/137:30 pm -
Nonstop3h 09m
Tue 10/206:10 am -
Nonstop3h 35m
Deal found 9/16![Delta logo]()
$328
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:30 pm -
1 stop17h 32m
Fri 10/2311:47 am -
1 stop12h 26m
Deal found 9/16![Frontier logo]()
$326
This CheapOair deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:30 pm -
1 stop17h 32m
Fri 10/2311:47 am -
1 stop12h 26m
Deal found 9/13![Frontier logo]()
$328
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Thu 10/224:30 pm -
1 stop17h 32m
Sun 10/2511:47 am -
1 stop12h 26m
Deal found 9/15![Frontier logo]()
$329
This Southwest deal was found by Cheapflights users on 9/18. 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.
Sat 10/2410:40 am -
Nonstop3h 05m
Fri 10/302:45 pm -
Nonstop3h 30m
Deal found 9/18![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 9/16. 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.
Sat 10/2410:40 am -
Nonstop3h 05m
Wed 10/281:15 pm -
Nonstop3h 30m
Deal found 9/16![Southwest logo]()
$320
This Southwest deal was found by Cheapflights users on 9/16. 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.
Sat 10/2410:40 am -
Nonstop3h 05m
Sat 10/315:30 am -
1 stop5h 30m
Deal found 9/16![Southwest logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:22 am -
1 stop5h 15m
Fri 10/309:30 am -
1 stop6h 07m
Deal found 9/18![United Airlines logo]()
$332
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:00 am -
Nonstop2h 44m
Mon 11/23:25 pm -
Nonstop3h 22m
Deal found 9/16![American Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/289:40 am -
Nonstop3h 09m
Wed 11/49:05 am -
Nonstop3h 35m
Deal found 9/16![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/3110:00 am -
Nonstop2h 44m
Mon 11/23:25 pm -
Nonstop3h 22m
Deal found 9/14![American Airlines logo]()
$324
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 September 18, 2026.
Search for one-way flight options from Missouri to Boston. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/148:43 pm -
2 stops37h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$124
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:07 am -
1 stop23h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/69:36 am -
1 stop22h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Allegiant Air logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/139:36 am -
1 stop22h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Allegiant Air logo]()
$135
This Super.com deal was found by Cheapflights users on 9/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:30 pm -
1 stop17h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$135
This Delta deal was found by Cheapflights users on 9/17. 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 11/512:35 pm -
Nonstop3h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Delta logo]()
$140
This Super.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:30 pm -
1 stop17h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/146:35 pm -
2 stops39h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/238:43 pm -
2 stops37h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$146
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:05 pm -
1 stop15h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$148
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:30 pm -
1 stop17h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$149
This Southwest deal was found by Cheapflights users on 9/17. 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 11/55:50 pm -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$150
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 September 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $299 (American Airlines) |
One-way from | $124 (Kiwi.com) |
Popular in | February |
Cheapest in | December |
Average price | $442 |
Good round-trip deal | $346 or less |
Good one-way deal | $202 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 7,457,451 searches. Data last updated September 18, 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
Kansas CityBoston
MCI Kansas City - BOS Boston Logan Intl
MCIBOS
Kansas City
Tue 10/13
5:46 pm-11:59 pm
1 stop5h 13m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$150
Kansas CityBoston
MCI Kansas City - BOS Boston Logan Intl
MCIBOS
Kansas City
Wed 11/11
7:05 am-1:42 pm
1 stop5h 37m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$150
Kansas CityBoston
MCI Kansas City - BOS Boston Logan Intl
MCIBOS
Kansas City
Sat 11/7
6:40 am-3:23 pm
1 stop7h 43m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$150
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Wed 10/14
6:40 am-10:15 am
Nonstop2h 35m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$151
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Wed 12/16
1:20 pm-4:50 pm
Nonstop2h 30m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$151
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Wed 10/14
7:30 am-2:35 pm
1 stop6h 05m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$156
Quickest round-trip
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Thu 12/17
7:55 pm-11:20 pm
Nonstop2h 25m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
Kansas CityBoston
MCI Kansas City - BOS Boston Logan Intl
MCIBOS
Kansas City
Tue 11/3
12:35 pm-4:46 pm
Nonstop3h 11m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$160
Kansas CityBoston
MCI Kansas City - BOS Boston Logan Intl
MCIBOS
Kansas City
Tue 10/20
7:30 pm-11:39 pm
Nonstop3h 09m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$160
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Wed 12/16
5:51 pm-1:16 am
1 stop6h 25m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$161
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.
MCI-BOS
STL-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
MCI-BOS
STL-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 $454). Flying from Missouri to Boston in February is currently the most expensive (average of $629). 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 September 18, 2026.
A simple way to save on the total cost of your ticket is to fly from Missouri to Boston in the evening. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight at noon.
How much does it cost to fly round-trip from Missouri to Boston?
Airfare is below average for this route at the moment.
Missouri to Boston flights typically cost between $376 and $569 in November.The cheapest round-trip price found within the last 5 days was $323 on American Airlines (Nov 9-Nov 11).
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 September 12, 2026.
Travelers seeking maximum savings on their Missouri to Boston flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday 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
Concord
Cambridge
Brockton
Dedham
Cranston
Revere
Warwick
Pawtucket
Peabody
Auburn
Londonderry
York Beach
Fitchburg
North Falmouth
Swansea
Chelsea
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
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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 September 18, 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 September 18, 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 7,457,451 searches. Data last updated September 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$262 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$254 | Average$491 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$275 | Average$478 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$505 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$316 | Average$438 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$334 | Average$497 | FlexibilityNo cancel fee | On-time63% |