$143+ Cheap flights from St. Louis (STL) to Massachusetts
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Nov 11 — Nov 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Louis to Massachusetts with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Massachusetts
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to MassachusettsExplore the most affordable flight options available from St. Louis to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
Explore the most affordable flight options available from St. Louis to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
This CheapOair deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:13 pm -
1 stop15h 00m
Sat 12/1211:08 am -
1 stop14h 04m
Deal found 10/10![Frontier logo]()
$323
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/185:05 am -
2 stops8h 15m
Wed 12/305:35 am -
Nonstop3h 05m
Deal found 10/8![Southwest logo]()
$324
This Frontier deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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
Fri 11/2011:06 am -
1 stop13h 53m
Deal found 10/11![Frontier logo]()
$325
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:30 pm -
1 stop4h 40m
Tue 11/1011:20 am -
2 stops9h 05m
Deal found 10/8![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am -
Nonstop2h 30m
Mon 11/97:45 pm -
1 stop5h 25m
Deal found 10/9![Southwest logo]()
$327
This Frontier deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
1 stop12h 06m
Mon 11/3011:06 am -
1 stop13h 53m
Deal found 10/8![Frontier logo]()
$328
This Frontier deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:35 pm -
1 stop12h 06m
Sun 11/2211:06 am -
1 stop13h 53m
Deal found 10/10![Frontier logo]()
$333
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:00 am -
1 stop7h 23m
Mon 11/95:40 pm -
1 stop7h 16m
Deal found 10/9![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:35 am -
1 stop4h 33m
Mon 11/97:40 pm -
1 stop5h 19m
Deal found 10/11![American Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:00 am -
1 stop7h 19m
Sun 11/224:03 pm -
1 stop5h 27m
Deal found 10/10![Delta logo]()
$362
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am -
1 stop7h 19m
Wed 11/254:00 pm -
2 stops25h 35m
Deal found 10/10![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:00 am -
1 stop7h 19m
Sun 11/224:03 pm -
1 stop5h 27m
Deal found 10/10![Delta logo]()
$442
Best flights from St. Louis to MassachusettsDiscover carefully curated flight deals from St. Louis to Massachusetts that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
Discover carefully curated flight deals from St. Louis to Massachusetts that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:10 pm -
Nonstop2h 30m
Thu 12/101:20 pm -
2 stops7h 05m
Deal found 10/9![Southwest logo]()
$332
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:00 am -
1 stop7h 19m
Sun 11/224:03 pm -
1 stop5h 27m
Deal found 10/10![Delta logo]()
$362
This United Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:59 am -
1 stop7h 35m
Mon 11/99:00 am -
2 stops7h 43m
Deal found 10/7![United Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:02 am -
1 stop10h 19m
Tue 11/245:46 pm -
2 stops23h 58m
Deal found 10/10![American Airlines logo]()
$534
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/314:20 pm -
1 stop4h 50m
Tue 1/55:30 am -
2 stops6h 30m
Deal found 10/10![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:25 pm -
2 stops6h 35m
Sat 12/1211:35 am -
2 stops9h 00m
Deal found 10/10![Southwest logo]()
$347
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:40 am -
2 stops7h 39m
Wed 11/254:00 pm -
2 stops25h 35m
Deal found 10/10![Delta logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am -
2 stops8h 32m
Mon 11/210:25 am -
1 stop6h 18m
Deal found 10/8![United Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:55 pm -
Nonstop2h 30m
Wed 11/183:30 pm -
2 stops7h 30m
Deal found 10/9![Southwest logo]()
$396
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:30 am -
1 stop5h 29m
Mon 11/95:30 am -
2 stops10h 04m
Deal found 10/12![United Airlines logo]()
$452
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:02 am -
1 stop10h 19m
Tue 11/245:46 pm -
1 stop20h 05m
Deal found 10/10![American Airlines logo]()
$537
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1010:40 am -
2 stops6h 45m
Sat 1/1610:55 am -
Nonstop3h 20m
Deal found 10/7![Southwest logo]()
$421
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:40 am -
2 stops7h 43m
Wed 11/254:00 pm -
2 stops25h 35m
Deal found 10/10![Delta logo]()
$550
This Southwest deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 12/204:25 pm -
2 stops6h 30m
Sun 12/278:05 pm -
1 stop5h 05m
Deal found 10/11![Southwest logo]()
$436
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/267:03 am -
2 stops8h 46m
Fri 10/305:16 pm -
1 stop18h 25m
Deal found 10/11![American Airlines logo]()
$636
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:40 am -
1 stop5h 10m
Mon 11/25:10 am -
Nonstop3h 05m
Deal found 10/9![Southwest logo]()
$479
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/267:00 am -
2 stops7h 27m
Fri 10/304:10 pm -
2 stops8h 11m
Deal found 10/11![Delta logo]()
$651
This Expedia deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:42 pm -
2 stops21h 53m
Thu 10/297:00 am -
2 stops17h 59m
Deal found 10/10![Multiple Airlines logo]()
$1,914
Last-minute flights from St. Louis to MassachusettsDiscover last-minute flight deals from St. Louis to Massachusetts. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Massachusetts. Data last updated October 12, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:30 pm -
1 stop4h 40m
Tue 11/1011:20 am -
2 stops9h 05m
Deal found 10/8![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am -
Nonstop2h 30m
Mon 11/97:45 pm -
1 stop5h 25m
Deal found 10/9![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:00 am -
1 stop7h 23m
Mon 11/95:40 pm -
1 stop7h 16m
Deal found 10/9![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:35 am -
1 stop4h 33m
Mon 11/97:40 pm -
1 stop5h 19m
Deal found 10/11![American Airlines logo]()
$338
This Frontier deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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
Fri 11/2011:06 am -
1 stop13h 53m
Deal found 10/11![Frontier logo]()
$325
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/191:20 pm -
Nonstop2h 30m
Sun 11/226:35 pm -
Nonstop3h 05m
Deal found 10/8![Southwest logo]()
$339
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:00 am -
1 stop7h 19m
Sun 11/224:03 pm -
1 stop5h 27m
Deal found 10/10![Delta logo]()
$362
This American Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:02 am -
1 stop10h 19m
Sun 11/225:46 pm -
2 stops23h 58m
Deal found 10/10![American Airlines logo]()
$449
This Frontier deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:35 pm -
1 stop12h 06m
Sun 11/2211:06 am -
1 stop13h 53m
Deal found 10/10![Frontier logo]()
$333
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:00 am -
1 stop7h 19m
Sun 11/224:03 pm -
1 stop5h 27m
Deal found 10/10![Delta logo]()
$442
This Frontier deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
1 stop12h 06m
Mon 11/3011:06 am -
1 stop13h 53m
Deal found 10/8![Frontier logo]()
$328
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am -
1 stop7h 19m
Wed 11/254:00 pm -
2 stops25h 35m
Deal found 10/10![Delta logo]()
$414
One-way flights from St. Louis to MassachusettsSearch for one-way flight options from St. Louis to Massachusetts. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
Search for one-way flight options from St. Louis to Massachusetts. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This Super.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:24 pm -
1 stop11h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:02 pm -
2 stops44h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Multiple Airlines logo]()
$144
This Frontier deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
1 stop12h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Frontier logo]()
$145
This Jetabroad deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:13 pm -
1 stop15h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Frontier logo]()
$148
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:50 am -
Nonstop2h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$150
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:20 pm -
Nonstop2h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:13 pm -
1 stop14h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$152
This Southwest deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:15 am -
Nonstop2h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Southwest logo]()
$159
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:00 am -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:34 pm -
1 stop15h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Frontier logo]()
$163
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:15 am -
2 stops7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$166
This Delta deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/207:00 am -
1 stop7h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Delta logo]()
$266
Find flight deals from St. Louis to Massachusetts
Keep the following information in mind while searching for St. Louis to Massachusetts flight deals. Data was last updated October 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $323 (CheapOair) |
One-way from | $143 (Super.com) |
Popular in | February |
Cheapest in | November |
Average price | $512 |
Good round-trip deal | $468 or less |
Good one-way deal | $300 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Massachusetts that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 12, 2026.
Use the filters below to find and compare flights from St. Louis to Massachusetts that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Tue 11/24
5:00 am-8:30 am
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
Thu 11/12
9:50 am-1:26 pm
Nonstop2h 36m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Fri 11/13
7:00 am-2:21 pm
1 stop6h 21m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Thu 12/10
6:00 am-12:38 pm
1 stop5h 38m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Thu 11/12
4:30 pm-11:45 pm
1 stop6h 15m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Tue 12/8
12:36 pm-7:06 pm
1 stop5h 30m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Thu 1/7
10:00 am-4:23 pm
1 stop5h 23m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Sat 12/12
12:15 pm-10:00 pm
2 stops8h 45m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$174
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Wed 11/11
10:55 am-7:05 pm
2 stops7h 10m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$174
St. LouisBoston
STL Lambert-St Louis - BOS Boston Logan Intl
STLBOS
Lambert-St Louis
Sat 1/9
7:00 am-8:41 pm
2 stops12h 41m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$183
Showing 1-10 of 31 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Massachusetts
Have a flexible travel schedule? Discover the best time to fly to Massachusetts from St. Louis with our price prediction graph.
STL-BOS
STL-ORH
STL-MVY
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Massachusetts
STL-USMA
STL-BOS
STL-ORH
STL-MVY
What is the cheapest month to book a flight from St. Louis to Massachusetts?
Currently, November is the cheapest month in which you can book a flight from St. Louis to Massachusetts (average of $444). Flying from St. Louis to Massachusetts in February is currently the most expensive (average of $704). 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 STL to MA?
Find hourly flight availability from St. Louis to Massachusetts. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 12, 2026.
It’s optimal to fly from St. Louis to Massachusetts in the afternoon. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight at noon.
Weekly flight availability from St. Louis to Massachusetts
Explore weekly flight availability from St. Louis to Massachusetts. 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 October 12, 2026.
The most flights from STL to USMA are scheduled on a Friday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from St. Louis to Massachusetts?
Airfare is below average for this route at the moment.
St. Louis to Massachusetts flights typically cost between $422 and $615 in December.The cheapest round-trip price found within the last 5 days was $323 on Frontier (Dec 5-Dec 12).
How far ahead should I book a flight from St. Louis to Massachusetts?
Booking 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Massachusetts. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from St. Louis to Massachusetts?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Massachusetts. Price data was last updated on October 10, 2026.
Travelers seeking maximum savings on their St. Louis to Massachusetts flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Massachusetts
Get insights into the airlines that provide service to Massachusetts. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Massachusetts. Reviews last updated October 12, 2026.
Read through reviews of airlines operating flights from St. Louis to Massachusetts, such as Southwest,United Airlines, andJetBlue. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Massachusetts. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for St. Louis to Massachusetts
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Massachusetts by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Massachusetts by cabin class
Find flights from St. Louis to Massachusetts, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Massachusetts flights
Browse other St. Louis and Massachusetts flight options. Last updated on October 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Massachusetts flights
Consider these flights traveling from St. Louis to Massachusetts.
Top 5 airlines flying from St. Louis to Massachusetts
Discover the top 5 airlines that operate flights from St. Louis to Massachusetts. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$274 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$264 | Average$574 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$309 | Average$479 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$316 | Average$438 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$336 | Average$513 | FlexibilityNo cancel fee | On-time63% |