$78+ Cheap flights from Massachusetts to St. Louis (STL)
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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — STL
Apr 3 — Apr 101
Round-trip
1 adult, Economy
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Find cheap flights from Massachusetts to St. Louis 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
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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 Massachusetts to St. Louis
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Cheapest flights from Massachusetts to St. LouisExplore the most affordable flight options available from Massachusetts to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 4, 2026.
Explore the most affordable flight options available from Massachusetts to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 4/263:50 pm
BDL
- STL
1 stop16h 00m
Frontier
Wed 4/298:23 pm
STL
- BDL
1 stop17h 26m
Frontier
Deal found 3/3![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
Sun 4/263:50 pm
BDL
- STL
1 stop16h 00m
Frontier
Thu 4/3011:21 am
STL
- BDL
1 stop28h 00m
Frontier
Deal found 2/27![Frontier logo]()
$195
This CheapOair deal was found by Cheapflights users on 3/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:08 pm
BDL
- STL
1 stop11h 49m
Frontier
Tue 3/314:51 pm
STL
- BDL
1 stop23h 48m
Frontier
Deal found 3/4![Frontier logo]()
$206
This CheapOair deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 4/29:21 pm
BDL
- STL
1 stop11h 07m
Frontier
Tue 4/74:59 pm
STL
- BDL
1 stop17h 02m
Frontier
Deal found 2/28![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 4/263:50 pm
BDL
- STL
1 stop16h 00m
Multiple Airlines
Wed 4/298:23 pm
STL
- BDL
2 stops25h 08m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$227
This Priceline deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:08 pm
BDL
- STL
1 stop11h 49m
Frontier
Sat 4/48:41 am
STL
- BDL
1 stop11h 20m
Frontier
Deal found 2/28![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/271:56 pm
BDL
- STL
2 stops10h 23m
Multiple Airlines
Thu 4/3011:21 am
STL
- BDL
1 stop28h 00m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Thu 5/71:07 pm
BDL
- STL
1 stop18h 43m
Frontier
Sat 5/98:13 pm
STL
- BDL
1 stop15h 02m
Frontier
Deal found 3/3![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/243:34 pm
BDL
- STL
1 stop16h 16m
Multiple Airlines
Mon 4/278:17 pm
STL
- BDL
2 stops44h 06m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$237
This CheapOair deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/298:08 pm
BDL
- STL
1 stop11h 54m
Frontier
Sun 4/54:59 pm
STL
- BDL
1 stop27h 09m
Frontier
Deal found 3/1![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Tue 5/58:05 am
BDL
- STL
2 stops23h 45m
Multiple Airlines
Sat 5/98:13 pm
STL
- BDL
1 stop15h 02m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$242
This CheapOair deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
Tue 4/76:29 pm
BDL
- STL
1 stop29h 56m
Frontier
Fri 4/108:41 am
STL
- BDL
1 stop23h 11m
Frontier
Deal found 2/28![Frontier logo]()
$246
Best flights from Massachusetts to St. LouisDiscover carefully curated flight deals from Massachusetts to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 4, 2026.
Discover carefully curated flight deals from Massachusetts to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 4, 2026.
This Southwest deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 4/152:45 pm
ALB
- STL
1 stop7h 20m
Southwest
Wed 4/295:35 am
STL
- ALB
2 stops7h 30m
Southwest
Deal found 2/28![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 4/145:10 pm
BDL
- STL
1 stop5h 03m
United Airlines
Wed 4/156:30 am
STL
- BDL
1 stop6h 45m
United Airlines
Deal found 2/27![United Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 3/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:54 pm
BDL
- STL
1 stop4h 48m
Delta
Wed 4/810:12 am
STL
- BDL
1 stop4h 47m
Delta
Deal found 3/3![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 3/2. 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 3/287:10 pm
ALB
- STL
1 stop4h 45m
Southwest
Thu 4/25:20 am
STL
- ALB
1 stop6h 10m
Southwest
Deal found 3/2![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 4/73:04 pm
BDL
- STL
2 stops9h 53m
United Airlines
Wed 4/86:30 am
STL
- BDL
2 stops6h 38m
United Airlines
Deal found 2/27![United Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:00 am
BDL
- STL
1 stop5h 32m
Delta
Sat 5/165:15 pm
STL
- BDL
1 stop6h 18m
Delta
Deal found 3/1![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:54 pm
ALB
- STL
1 stop6h 30m
United Airlines
Tue 5/57:45 am
STL
- ALB
1 stop5h 18m
United Airlines
Deal found 2/27![United Airlines logo]()
$332
This Southwest deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 5/1311:20 am
BDL
- STL
1 stop4h 55m
Southwest
Mon 5/185:05 am
STL
- BDL
1 stop7h 10m
Southwest
Deal found 2/27![Southwest logo]()
$339
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:00 am
BDL
- STL
1 stop6h 09m
Delta
Wed 4/87:03 am
STL
- BDL
1 stop5h 11m
Delta
Deal found 3/1![Delta logo]()
$352
This Southwest deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 4/1511:20 am
BDL
- STL
1 stop4h 55m
Southwest
Thu 4/165:40 am
STL
- BDL
1 stop4h 00m
Southwest
Deal found 2/27![Southwest logo]()
$339
This United Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 5/166:54 pm
ALB
- STL
1 stop4h 51m
United Airlines
Tue 5/197:45 am
STL
- ALB
1 stop5h 18m
United Airlines
Deal found 2/28![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:30 pm
ALB
- STL
1 stop6h 07m
Delta
Sat 8/155:45 pm
STL
- ALB
1 stop4h 21m
Delta
Deal found 3/2![Delta logo]()
$362
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/412:35 pm
BOS
- STL
2 stops9h 15m
Southwest
Wed 4/810:25 am
STL
- BOS
1 stop7h 10m
Southwest
Deal found 3/1![Southwest logo]()
$351
This United Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 5/76:54 pm
ALB
- STL
1 stop4h 51m
United Airlines
Fri 5/87:45 am
STL
- ALB
1 stop5h 18m
United Airlines
Deal found 2/28![United Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 3/3. 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.
Sat 4/45:35 am
BOS
- STL
Nonstop3h 05m
Southwest
Tue 4/76:50 pm
STL
- BOS
Nonstop2h 30m
Southwest
Deal found 3/3![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 3/249:05 am
BOS
- STL
1 stop4h 53m
Delta
Fri 3/277:03 am
STL
- BOS
1 stop5h 36m
Delta
Deal found 2/27![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/143:04 pm
BDL
- STL
2 stops9h 53m
United Airlines
Fri 4/177:45 am
STL
- BDL
1 stop5h 30m
United Airlines
Deal found 3/1![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 3/3. 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.
Wed 3/255:30 am
BOS
- STL
Nonstop3h 05m
Southwest
Mon 3/307:45 pm
STL
- BOS
Nonstop2h 25m
Southwest
Deal found 3/3![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/284:58 pm
BDL
- STL
1 stop7h 01m
United Airlines
Mon 3/3011:15 am
STL
- BDL
2 stops11h 44m
United Airlines
Deal found 3/2![United Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 3/2. 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.
Fri 4/35:28 pm
BOS
- STL
1 stop7h 30m
Delta
Mon 4/64:21 pm
STL
- BOS
1 stop5h 24m
Delta
Deal found 3/2![Delta logo]()
$418
This Southwest deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 5/144:40 pm
BDL
- STL
2 stops8h 00m
Southwest
Mon 5/182:15 pm
STL
- BDL
2 stops7h 20m
Southwest
Deal found 2/27![Southwest logo]()
$371
This United Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 3/288:14 am
ALB
- STL
1 stop7h 29m
United Airlines
Mon 3/306:30 am
STL
- ALB
2 stops6h 38m
United Airlines
Deal found 2/28![United Airlines logo]()
$376
This Southwest deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:10 am
ALB
- STL
1 stop7h 05m
Southwest
Thu 6/45:20 pm
STL
- ALB
1 stop5h 25m
Southwest
Deal found 3/4![Southwest logo]()
$372
This Delta deal was found by Cheapflights users on 3/2. 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.
Fri 5/294:02 pm
MVY
- STL
1 stop5h 37m
Delta
Sun 5/319:30 am
STL
- MVY
1 stop4h 52m
Delta
Deal found 3/2![Delta logo]()
$466
This United Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:05 am
BOS
- STL
2 stops12h 08m
United Airlines
Sat 4/1811:15 am
STL
- BOS
1 stop12h 44m
United Airlines
Deal found 3/1![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 3/2. 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.
Fri 3/277:05 pm
ALB
- STL
1 stop5h 05m
Southwest
Tue 3/312:25 pm
STL
- ALB
2 stops7h 45m
Southwest
Deal found 3/2![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 4/165:40 am
BOS
- STL
Nonstop3h 00m
Southwest
Mon 4/205:40 am
STL
- BOS
1 stop6h 00m
Southwest
Deal found 2/28![Southwest logo]()
$379
This Delta deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 5/304:02 pm
MVY
- STL
2 stops8h 19m
Delta
Mon 6/19:30 am
STL
- MVY
1 stop4h 52m
Delta
Deal found 2/28![Delta logo]()
$522
This Southwest deal was found by Cheapflights users on 3/2. 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.
Mon 3/305:35 pm
ALB
- STL
2 stops7h 30m
Southwest
Mon 4/65:20 am
STL
- ALB
1 stop6h 10m
Southwest
Deal found 3/2![Southwest logo]()
$382
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/215:35 am
BOS
- STL
Nonstop3h 05m
Southwest
Tue 3/246:45 pm
STL
- BOS
Nonstop2h 25m
Southwest
Deal found 3/1![Southwest logo]()
$399
Last-minute flights from Massachusetts to St. LouisDiscover last-minute flight deals from Massachusetts to St. Louis. Data last updated March 4, 2026 and is based on user searches.
Discover last-minute flight deals from Massachusetts to St. Louis. Data last updated March 4, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 3/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:08 pm
BDL
- STL
1 stop11h 49m
Frontier
Tue 3/314:51 pm
STL
- BDL
1 stop23h 48m
Frontier
Deal found 3/4![Frontier logo]()
$206
This Priceline deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:08 pm
BDL
- STL
1 stop11h 49m
Frontier
Sat 4/48:41 am
STL
- BDL
1 stop11h 20m
Frontier
Deal found 2/28![Frontier logo]()
$230
This CheapOair deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/298:08 pm
BDL
- STL
1 stop11h 54m
Frontier
Sun 4/54:59 pm
STL
- BDL
1 stop27h 09m
Frontier
Deal found 3/1![Frontier logo]()
$241
This CheapOair deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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 4/29:21 pm
BDL
- STL
1 stop11h 07m
Frontier
Tue 4/74:59 pm
STL
- BDL
1 stop17h 02m
Frontier
Deal found 2/28![Frontier logo]()
$226
This Priceline deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
Thu 4/29:21 pm
BDL
- STL
1 stop11h 07m
Frontier
Sat 4/48:41 am
STL
- BDL
1 stop11h 20m
Frontier
Deal found 2/28![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sat 4/411:46 am
BDL
- STL
1 stop23h 44m
Multiple Airlines
Tue 4/74:59 pm
STL
- BDL
1 stop21h 06m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$254
This CheapOair deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
Tue 4/76:29 pm
BDL
- STL
1 stop29h 56m
Frontier
Fri 4/108:41 am
STL
- BDL
1 stop23h 11m
Frontier
Deal found 2/28![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/243:34 pm
BDL
- STL
1 stop16h 16m
Multiple Airlines
Mon 4/278:17 pm
STL
- BDL
2 stops44h 06m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 4/263:50 pm
BDL
- STL
1 stop16h 00m
Frontier
Wed 4/298:23 pm
STL
- BDL
1 stop17h 26m
Frontier
Deal found 3/3![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
Sun 4/263:50 pm
BDL
- STL
1 stop16h 00m
Frontier
Thu 4/3011:21 am
STL
- BDL
1 stop28h 00m
Frontier
Deal found 2/27![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 4/263:50 pm
BDL
- STL
1 stop16h 00m
Multiple Airlines
Wed 4/298:23 pm
STL
- BDL
2 stops25h 08m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/271:56 pm
BDL
- STL
2 stops10h 23m
Multiple Airlines
Thu 4/3011:21 am
STL
- BDL
1 stop28h 00m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$231
One-way flights from Massachusetts to St. LouisSearch for one-way flight options from Massachusetts to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 4, 2026.
Search for one-way flight options from Massachusetts to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Wed 4/112:42 pm
BOS
- STL
1 stop29h 52m
Frontier
Deal found 3/3![Frontier logo]()
$78
This Trip.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/263:50 pm
BDL
- STL
1 stop16h 00m
Frontier
Deal found 3/1![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 5/812:35 pm
BOS
- STL
1 stop19h 15m
Frontier
Deal found 3/3![Frontier logo]()
$85
This Priceline deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
Thu 4/301:39 pm
BDL
- STL
1 stop10h 40m
Frontier
Deal found 2/28![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2512:09 pm
BOS
- STL
1 stop23h 22m
Frontier
Deal found 3/1![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 4/296:00 am
BOS
- STL
1 stop29h 26m
Frontier
Deal found 3/2![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
Sun 5/171:07 pm
BDL
- STL
1 stop18h 43m
Frontier
Deal found 3/2![Frontier logo]()
$90
This CheapOair deal was found by Cheapflights users on 3/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:42 pm
BDL
- STL
1 stop27h 37m
Frontier
Deal found 3/3![Frontier logo]()
$92
This CheapOair deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
Mon 4/2710:08 am
BOS
- STL
1 stop14h 11m
Frontier
Deal found 2/27![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Tue 3/1012:36 pm
BOS
- STL
1 stop23h 01m
Frontier
Deal found 3/3![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/612:42 pm
BOS
- STL
1 stop22h 48m
Frontier
Deal found 3/3![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 5/612:55 pm
BOS
- STL
1 stop22h 35m
Frontier
Deal found 3/4![Frontier logo]()
$113
Find flight deals from Massachusetts to St. Louis
Keep the following information in mind while searching for Massachusetts to St. Louis flight deals. Data was last updated March 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $169 (Kiwi.com) |
One-way from | $78 (Kiwi.com) |
Popular in | February |
Cheapest in | August |
Average price | $471 |
Good round-trip deal | $384 or less |
Good one-way deal | $217 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Massachusetts to St. Louis 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 March 4, 2026.
Use the filters below to find and compare flights from Massachusetts to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
AlbanySt. Louis
ALB - STL
ALBSTL
Albany Intl
Wed 4/15
2:45 pm-9:05 pm
1 stop7h 20m
Lambert-St Louis
Wed 4/29
5:35 am-2:05 pm
2 stops7h 30m
$282
AlbanySt. Louis
ALB - STL
ALBSTL
Albany Intl
Sat 3/28
7:10 pm-10:55 pm
1 stop4h 45m
Lambert-St Louis
Thu 4/2
5:20 am-12:30 pm
1 stop6h 10m
$315
HartfordSt. Louis
BDL - STL
BDLSTL
Hartford Bradley Intl
Tue 4/14
5:10 pm-9:13 pm
1 stop5h 03m
Lambert-St Louis
Wed 4/15
6:30 am-2:15 pm
1 stop6h 45m
$317
HartfordSt. Louis
BDL - STL
BDLSTL
Hartford Bradley Intl
Tue 4/7
3:04 pm-11:57 pm
2 stops9h 53m
Lambert-St Louis
Wed 4/8
6:30 am-2:08 pm
2 stops6h 38m
$327
AlbanySt. Louis
ALB - STL
ALBSTL
Albany Intl
Fri 5/1
6:54 pm-12:24 am
1 stop6h 30m
Lambert-St Louis
Tue 5/5
7:45 am-2:03 pm
1 stop5h 18m
$332
HartfordSt. Louis
BDL - STL
BDLSTL
Hartford Bradley Intl
Wed 3/25
4:54 pm-8:42 pm
1 stop4h 48m
Lambert-St Louis
Wed 4/8
10:12 am-3:59 pm
1 stop4h 47m
$337
HartfordSt. Louis
BDL - STL
BDLSTL
Hartford Bradley Intl
Thu 5/14
6:00 am-10:32 am
1 stop5h 32m
Lambert-St Louis
Sat 5/16
5:15 pm-12:33 am
1 stop6h 18m
$339
HartfordSt. Louis
BDL - STL
BDLSTL
Hartford Bradley Intl
Wed 5/13
11:20 am-3:15 pm
1 stop4h 55m
Lambert-St Louis
Mon 5/18
5:05 am-1:15 pm
1 stop7h 10m
$339
HartfordSt. Louis
BDL - STL
BDLSTL
Hartford Bradley Intl
Wed 4/15
11:20 am-3:15 pm
1 stop4h 55m
Lambert-St Louis
Thu 4/16
5:40 am-10:40 am
1 stop4h 00m
$339
AlbanySt. Louis
ALB - STL
ALBSTL
Albany Intl
Sat 5/16
6:54 pm-10:45 pm
1 stop4h 51m
Lambert-St Louis
Tue 5/19
7:45 am-2:03 pm
1 stop5h 18m
$347
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Massachusetts to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Massachusetts with our price prediction graph.
BDL-STL
ALB-STL
BOS-STL
MVY-STL
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 Massachusetts to St. Louis
USMA-STL
BDL-STL
ALB-STL
BOS-STL
MVY-STL
What is the cheapest month to book a flight from Massachusetts to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Massachusetts to St. Louis (average of $189). Flying from Massachusetts to St. Louis in February is currently the most expensive (average of $327). 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 MA to STL?
Find hourly flight availability from Massachusetts to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 4, 2026.
When flying from Massachusetts to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 9% versus a flight at noon.
What is the cheapest day to fly from Massachusetts to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Massachusetts to St. Louis. Price data was last updated on February 21, 2026.
Travelers seeking maximum savings on their Massachusetts to St. Louis flight should consider departing on Monday 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.
Related info for your journey
Find useful and relevant information for your journey from Massachusetts to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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.
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Alternative routes for Massachusetts to St. Louis
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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Massachusetts to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Massachusetts and St. Louis flights
Browse other Massachusetts and St. Louis flight options. Last updated on March 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 4, 2026.
Massachusetts to St. Louis flights
Consider these flights traveling from Massachusetts to St. Louis.
Top 7 airlines flying from Massachusetts to St. Louis
Discover the top 7 airlines that operate flights from Massachusetts to St. Louis. 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 March 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$63 | Average$207 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$90 | Average$270 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$367 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$287 | Average$461 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$292 | Average$424 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$318 | Average$474 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$352 | Average$430 | FlexibilityNo cancel fee | On-time62% |