$81+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Jun 6 — Jun 131
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 May 7, 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 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 Frontier 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 Frontier 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
Mon 6/16:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/4![Frontier logo]()
$210
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 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 10/246:00 am
SGF
- BOS
1 stop5h 39m
Delta
Sat 10/313:10 pm
BOS
- SGF
1 stop8h 22m
Delta
Deal found 5/5![Delta logo]()
$295
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 6/106:57 pm
SGF
- BOS
1 stop5h 34m
Delta
Fri 6/265:30 am
BOS
- SGF
1 stop6h 25m
Delta
Deal found 5/5![Delta logo]()
$312
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.
Wed 6/1010:48 am
COU
- BOS
1 stop5h 41m
United Airlines
Tue 6/166:00 am
BOS
- COU
1 stop5h 13m
United Airlines
Deal found 5/5![United Airlines logo]()
$328
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 May 7, 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 May 7, 2026.
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.
Thu 7/96:53 pm
SGF
- BOS
1 stop5h 27m
Delta
Fri 7/175:30 am
BOS
- SGF
1 stop6h 22m
Delta
Deal found 5/4![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 5/287:40 pm
STL
- BOS
Nonstop2h 30m
Southwest
Mon 6/15:40 am
BOS
- STL
Nonstop3h 00m
Southwest
Deal found 5/6![Southwest logo]()
$353
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 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
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.
Tue 6/26:00 am
STL
- BOS
1 stop6h 20m
Delta
Wed 6/104:30 pm
BOS
- STL
1 stop6h 48m
Delta
Deal found 5/2![Delta logo]()
$337
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.
Sat 5/306:20 am
STL
- BOS
1 stop6h 15m
Southwest
Sat 6/65:50 am
BOS
- STL
Nonstop2h 55m
Southwest
Deal found 5/5![Southwest logo]()
$363
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 8/258:00 am
COU
- BOS
2 stops8h 55m
United Airlines
Sat 8/295:45 am
BOS
- COU
2 stops9h 45m
United Airlines
Deal found 5/2![United Airlines logo]()
$429
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 6/82:30 pm
STL
- BOS
Nonstop2h 35m
Southwest
Sat 6/139:20 am
BOS
- STL
Nonstop2h 55m
Southwest
Deal found 5/5![Southwest logo]()
$392
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.
Tue 5/266:00 am
STL
- BOS
1 stop6h 20m
Delta
Wed 5/275:15 pm
BOS
- STL
1 stop4h 54m
Delta
Deal found 5/6![Delta logo]()
$429
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 6/117:55 pm
STL
- BOS
Nonstop2h 30m
Southwest
Tue 6/166:25 pm
BOS
- STL
Nonstop3h 05m
Southwest
Deal found 5/6![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:53 am
COU
- BOS
2 stops10h 00m
United Airlines
Mon 8/177:10 am
BOS
- COU
1 stop8h 20m
United Airlines
Deal found 5/7![United Airlines logo]()
$439
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.
Mon 6/16:25 pm
MCI
- BOS
Nonstop3h 12m
Delta
Tue 6/166:10 am
BOS
- MCI
Nonstop3h 28m
Delta
Deal found 5/2![Delta logo]()
$433
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.
Sat 10/245:30 am
SGF
- BOS
1 stop7h 19m
United Airlines
Sat 10/318:30 am
BOS
- SGF
2 stops9h 49m
United Airlines
Deal found 5/6![United Airlines logo]()
$442
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/233:15 pm
STL
- BOS
2 stops7h 05m
Southwest
Sat 7/45:30 am
BOS
- STL
2 stops8h 55m
Southwest
Deal found 5/3![Southwest logo]()
$404
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.
Mon 10/53:43 pm
SGF
- BOS
1 stop7h 12m
American Airlines
Sat 10/1012:00 pm
BOS
- SGF
1 stop6h 49m
American Airlines
Deal found 5/2![American Airlines logo]()
$568
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 9/167:25 pm
MCI
- BOS
Nonstop3h 05m
Delta
Mon 9/216:50 am
BOS
- MCI
Nonstop3h 41m
Delta
Deal found 5/5![Delta logo]()
$445
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 5/5. 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.
Wed 7/85:33 pm
STL
- BOS
1 stop4h 48m
United Airlines
Tue 7/145:45 am
BOS
- STL
2 stops7h 26m
United Airlines
Deal found 5/5![United Airlines logo]()
$452
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.
Sun 6/216:47 pm
COU
- BOS
1 stop14h 39m
American Airlines
Sun 6/285:00 am
BOS
- COU
1 stop14h 17m
American Airlines
Deal found 5/6![American Airlines logo]()
$577
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.
Wed 7/110:35 am
MCI
- BOS
1 stop6h 01m
Delta
Sun 7/56:10 am
BOS
- MCI
Nonstop3h 28m
Delta
Deal found 5/6![Delta logo]()
$451
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.
Wed 5/277:35 am
STL
- BOS
2 stops7h 20m
Southwest
Wed 6/37:35 am
BOS
- STL
2 stops8h 35m
Southwest
Deal found 5/4![Southwest logo]()
$424
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 6/310:48 am
COU
- BOS
2 stops12h 11m
United Airlines
Fri 6/58:20 pm
BOS
- COU
1 stop13h 38m
United Airlines
Deal found 5/4![United Airlines logo]()
$492
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.
Thu 6/46:38 pm
MCI
- BOS
1 stop5h 50m
Delta
Thu 6/119:15 am
BOS
- MCI
1 stop5h 08m
Delta
Deal found 5/5![Delta logo]()
$463
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.
Sat 5/302:25 pm
STL
- BOS
2 stops8h 15m
Southwest
Tue 6/911:35 am
BOS
- STL
2 stops7h 50m
Southwest
Deal found 5/2![Southwest logo]()
$424
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.
Wed 6/1010:48 am
COU
- BOS
2 stops12h 11m
United Airlines
Tue 6/165:45 am
BOS
- COU
2 stops10h 04m
United Airlines
Deal found 5/5![United Airlines logo]()
$507
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.
Tue 8/117:40 pm
MCI
- BOS
Nonstop3h 10m
Delta
Tue 8/186:10 am
BOS
- MCI
Nonstop3h 31m
Delta
Deal found 5/2![Delta logo]()
$463
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.
Sat 7/188:45 pm
STL
- BOS
Nonstop2h 30m
Southwest
Sun 7/265:50 am
BOS
- STL
Nonstop2h 55m
Southwest
Deal found 5/6![Southwest logo]()
$446
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:00 am
COU
- BOS
1 stop7h 21m
United Airlines
Sat 8/156:00 am
BOS
- COU
3 stops12h 45m
United Airlines
Deal found 5/3![United Airlines logo]()
$507
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.
Thu 6/259:34 am
MCI
- BOS
Nonstop3h 15m
Delta
Sun 6/286:10 am
BOS
- MCI
Nonstop3h 28m
Delta
Deal found 5/2![Delta logo]()
$491
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 7/317:45 pm
MCI
- BOS
Nonstop3h 10m
Delta
Mon 8/36:10 am
BOS
- MCI
Nonstop3h 31m
Delta
Deal found 5/6![Delta logo]()
$491
Last-minute flights from Missouri to BostonDiscover last-minute flight deals from Missouri to Boston. Data last updated May 7, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Boston. 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 5/2. 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 5/2911:27 am
SGF
- BOS
1 stop7h 41m
American Airlines
Thu 6/45:01 am
BOS
- SGF
1 stop6h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$329
This Frontier 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 Frontier 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
Mon 6/16:00 am
BOS
- MCI
1 stop12h 29m
Frontier
Deal found 5/4![Frontier logo]()
$210
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 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 6/106:57 pm
SGF
- BOS
1 stop5h 34m
Delta
Fri 6/265:30 am
BOS
- SGF
1 stop6h 25m
Delta
Deal found 5/5![Delta logo]()
$312
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.
Wed 6/1010:48 am
COU
- BOS
1 stop5h 41m
United Airlines
Tue 6/166:00 am
BOS
- COU
1 stop5h 13m
United Airlines
Deal found 5/5![United Airlines logo]()
$328
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 May 7, 2026.
Search for one-way flight options from Missouri to Boston. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:19 pm
MCI
- BOS
1 stop12h 33m
Frontier
Deal found 5/2![Frontier logo]()
$81
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 5/2. 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
Deal found 5/2![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 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.
Sat 8/296:19 pm
MCI
- BOS
1 stop6h 08m
Frontier
Deal found 5/5![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 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:16 pm
MCI
- BOS
1 stop6h 07m
Frontier
Deal found 5/4![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.
Sun 5/316:33 pm
STL
- BOS
1 stop5h 51m
Frontier
Deal found 5/6![Frontier logo]()
$125
This Expedia 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 Expedia 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 5/5![Frontier logo]()
$131
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:27 pm
STL
- BOS
1 stop13h 22m
Frontier
Deal found 5/2![Frontier logo]()
$132
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 May 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $164 (Kiwi.com) |
One-way from | $81 (Kiwi.com) |
Popular in | February |
Cheapest in | September |
Average price | $441 |
Good round-trip deal | $461 or less |
Good one-way deal | $252 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 May 7, 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
SpringfieldBoston
SGF - BOS
SGFBOS
Springfield-Branson
Thu 7/9
6:53 pm-1:20 am
1 stop5h 27m
Boston Logan Intl
Fri 7/17
5:30 am-10:52 am
1 stop6h 22m
$329
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Tue 6/2
6:00 am-1:20 pm
1 stop6h 20m
Boston Logan Intl
Wed 6/10
4:30 pm-10:18 pm
1 stop6h 48m
$337
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Thu 5/28
7:40 pm-11:10 pm
Nonstop2h 30m
Boston Logan Intl
Mon 6/1
5:40 am-7:40 am
Nonstop3h 00m
$353
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Sat 5/30
6:20 am-1:35 pm
1 stop6h 15m
Boston Logan Intl
Sat 6/6
5:50 am-7:45 am
Nonstop2h 55m
$363
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Mon 6/8
2:30 pm-6:05 pm
Nonstop2h 35m
Boston Logan Intl
Sat 6/13
9:20 am-11:15 am
Nonstop2h 55m
$392
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Thu 6/11
7:55 pm-11:25 pm
Nonstop2h 30m
Boston Logan Intl
Tue 6/16
6:25 pm-8:30 pm
Nonstop3h 05m
$399
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Tue 6/23
3:15 pm-11:20 pm
2 stops7h 05m
Boston Logan Intl
Sat 7/4
5:30 am-1:25 pm
2 stops8h 55m
$404
Kansas CityBoston
MCI - BOS
MCIBOS
Kansas City
Mon 6/1
5:50 pm-11:10 pm
1 stop4h 20m
Boston Logan Intl
Sat 6/6
2:45 pm-5:10 pm
Nonstop3h 25m
$405
ColumbiaBoston
COU - BOS
COUBOS
Columbia Regional
Wed 6/10
3:25 pm-9:56 pm
1 stop5h 31m
Boston Logan Intl
Sat 6/13
6:40 pm-11:33 pm
1 stop5h 53m
$418
St. LouisBoston
STL - BOS
STLBOS
Lambert-St Louis
Wed 5/27
7:35 am-3:55 pm
2 stops7h 20m
Boston Logan Intl
Wed 6/3
7:35 am-3:10 pm
2 stops8h 35m
$424
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
SGF-BOS
MCI-BOS
JLN-BOS
COU-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
SGF-BOS
MCI-BOS
JLN-BOS
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 69 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 Boston?
Currently, August is the cheapest month in which you can book a flight from Missouri to Boston (average of $83). Flying from Missouri to Boston in February is currently the most expensive (average of $250). 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 May 7, 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 47% on your trip compared to booking a flight at noon.
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 May 2, 2026.
Travelers seeking maximum savings on their Missouri to Boston flight should consider departing on Saturday afternoons 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.
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 May 7, 2026.
The most flights from USMO to BOS are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Missouri to Boston?
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 locationsMedford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Warwick
Peabody
Seabrook
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy
Waltham
Lowell
Braintree
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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Complete your trip
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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 May 7, 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 May 7, 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 May 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$237 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$95 | Average$180 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$426 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$217 | Average$450 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$474 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$304 | Average$474 | FlexibilityNo cancel fee | On-time63% |