$86+ Cheap flights from Rhode Island 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
PVD — STL
Apr 26 — May 31
Round-trip
1 adult, Economy
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Find cheap flights from Rhode Island 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 Rhode Island to St. Louis
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Cheapest flights from Rhode Island to St. LouisExplore the most affordable flight options available from Rhode Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
Explore the most affordable flight options available from Rhode Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 5/65:29 am
PVD
- STL
1 stop5h 13m
Delta
Sat 5/95:15 pm
STL
- PVD
1 stop5h 42m
Delta
Deal found 3/26![Delta logo]()
$304
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/912:30 pm
PVD
- STL
2 stops7h 40m
Southwest
Tue 5/195:35 am
STL
- PVD
1 stop4h 15m
Southwest
Deal found 3/24![Southwest logo]()
$309
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 5/66:01 am
PVD
- STL
2 stops8h 21m
American Airlines
Sat 5/96:29 am
STL
- PVD
1 stop4h 30m
American Airlines
Deal found 3/23![American Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/292:25 pm
PVD
- STL
1 stop7h 40m
Southwest
Fri 5/15:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/24![Southwest logo]()
$332
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/237:05 pm
PVD
- STL
1 stop4h 40m
Southwest
Thu 4/305:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/24![Southwest logo]()
$333
This Southwest deal was found by Cheapflights users on 3/27. 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.
Mon 5/44:35 pm
PVD
- STL
2 stops8h 05m
Southwest
Mon 5/115:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/27![Southwest logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/152:18 pm
BOS
- STL
2 stops21h 12m
Multiple Airlines
Fri 4/174:59 pm
STL
- BOS
1 stop16h 22m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/236:55 pm
BOS
- STL
1 stop4h 50m
Southwest
Tue 4/283:55 pm
STL
- BOS
1 stop7h 10m
Southwest
Deal found 3/26![Southwest logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/1312:42 pm
BOS
- STL
2 stops11h 43m
Frontier
Sat 4/188:23 pm
STL
- BOS
1 stop13h 37m
Frontier
Deal found 3/26![Frontier logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 5/1410:07 am
BOS
- STL
1 stop15h 14m
Frontier
Mon 5/185:27 pm
STL
- BOS
2 stops40h 39m
Frontier
Deal found 3/26![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Fri 4/246:00 am
BOS
- STL
1 stop25h 50m
Multiple Airlines
Fri 5/18:23 pm
STL
- BOS
2 stops20h 10m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 5/62:25 pm
BOS
- STL
2 stops8h 35m
Southwest
Sat 5/96:20 am
STL
- BOS
1 stop6h 15m
Southwest
Deal found 3/23![Southwest logo]()
$346
Best flights from Rhode Island to St. LouisDiscover carefully curated flight deals from Rhode Island to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
Discover carefully curated flight deals from Rhode Island to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/47:09 pm
PVD
- STL
1 stop5h 27m
Delta
Tue 5/55:59 pm
STL
- PVD
1 stop4h 32m
Delta
Deal found 3/24![Delta logo]()
$304
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/237:05 pm
PVD
- STL
1 stop4h 40m
Southwest
Thu 4/305:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/24![Southwest logo]()
$333
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 5/75:45 am
BOS
- STL
2 stops8h 02m
United Airlines
Mon 5/117:45 am
STL
- BOS
1 stop7h 31m
United Airlines
Deal found 3/26![United Airlines logo]()
$468
This Southwest deal was found by Cheapflights users on 3/27. 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.
Mon 5/44:35 pm
PVD
- STL
2 stops8h 05m
Southwest
Mon 5/115:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/27![Southwest logo]()
$338
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 5/215:46 am
PVD
- STL
1 stop4h 43m
Delta
Tue 5/266:04 pm
STL
- PVD
1 stop4h 24m
Delta
Deal found 3/26![Delta logo]()
$351
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 5/201:23 pm
PVD
- STL
1 stop5h 23m
Delta
Sun 5/246:00 am
STL
- PVD
1 stop5h 17m
Delta
Deal found 3/25![Delta logo]()
$351
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 5/46:45 pm
BOS
- STL
Nonstop3h 10m
Southwest
Thu 5/72:30 pm
STL
- BOS
Nonstop2h 35m
Southwest
Deal found 3/22![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 6/512:40 pm
PVD
- STL
1 stop7h 30m
Southwest
Mon 6/88:10 pm
STL
- PVD
1 stop10h 55m
Southwest
Deal found 3/25![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 5/235:23 pm
PVD
- STL
1 stop5h 06m
Delta
Tue 5/2610:19 am
STL
- PVD
1 stop4h 57m
Delta
Deal found 3/23![Delta logo]()
$371
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/235:45 am
BOS
- STL
2 stops9h 39m
United Airlines
Mon 4/277:45 am
STL
- BOS
1 stop6h 03m
United Airlines
Deal found 3/26![United Airlines logo]()
$468
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 5/122:25 pm
BOS
- STL
2 stops8h 35m
Southwest
Sat 5/162:25 pm
STL
- BOS
2 stops8h 15m
Southwest
Deal found 3/22![Southwest logo]()
$370
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/235:35 am
BOS
- STL
1 stop8h 21m
Delta
Sun 5/316:00 am
STL
- BOS
1 stop7h 15m
Delta
Deal found 3/24![Delta logo]()
$427
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 5/132:25 pm
BOS
- STL
1 stop7h 40m
Southwest
Sun 5/175:25 am
STL
- BOS
1 stop4h 30m
Southwest
Deal found 3/26![Southwest logo]()
$395
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/311:35 am
PVD
- STL
2 stops10h 00m
Southwest
Tue 5/58:30 am
STL
- PVD
2 stops8h 15m
Southwest
Deal found 3/24![Southwest logo]()
$396
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 5/36:40 pm
PVD
- STL
1 stop5h 20m
Southwest
Tue 5/128:30 am
STL
- PVD
2 stops8h 15m
Southwest
Deal found 3/22![Southwest logo]()
$397
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 6/108:30 am
PVD
- STL
2 stops7h 20m
Southwest
Sat 6/1312:50 pm
STL
- PVD
1 stop7h 35m
Southwest
Deal found 3/22![Southwest logo]()
$404
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/35:30 am
BOS
- STL
2 stops7h 35m
Southwest
Tue 5/57:35 am
STL
- BOS
2 stops7h 20m
Southwest
Deal found 3/24![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/122:25 pm
BOS
- STL
2 stops8h 35m
Southwest
Mon 5/182:20 pm
STL
- BOS
2 stops8h 35m
Southwest
Deal found 3/24![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 7/95:35 am
BOS
- STL
Nonstop2h 50m
Southwest
Tue 7/147:10 pm
STL
- BOS
Nonstop2h 30m
Southwest
Deal found 3/24![Southwest logo]()
$461
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/245:40 am
BOS
- STL
Nonstop3h 00m
Southwest
Tue 4/286:50 pm
STL
- BOS
Nonstop2h 30m
Southwest
Deal found 3/26![Southwest logo]()
$465
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 7/97:30 am
BOS
- STL
1 stop5h 40m
Southwest
Sun 7/128:00 pm
STL
- BOS
Nonstop2h 30m
Southwest
Deal found 3/25![Southwest logo]()
$471
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 7/3012:55 pm
BOS
- STL
Nonstop2h 50m
Southwest
Sun 8/29:05 am
STL
- BOS
1 stop7h 00m
Southwest
Deal found 3/22![Southwest logo]()
$471
Last-minute flights from Rhode Island to St. LouisDiscover last-minute flight deals from Rhode Island to St. Louis. Data last updated March 27, 2026 and is based on user searches.
Discover last-minute flight deals from Rhode Island to St. Louis. Data last updated March 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/74:23 pm
BOS
- STL
1 stop8h 02m
Multiple Airlines
Thu 4/96:29 pm
STL
- BOS
2 stops28h 30m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/1212:47 pm
BOS
- STL
2 stops20h 04m
Frontier
Tue 4/144:59 pm
STL
- BOS
1 stop16h 22m
Frontier
Deal found 3/26![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/1312:42 pm
BOS
- STL
2 stops11h 43m
Frontier
Sat 4/188:23 pm
STL
- BOS
1 stop13h 37m
Frontier
Deal found 3/26![Frontier logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/152:18 pm
BOS
- STL
2 stops21h 12m
Multiple Airlines
Fri 4/174:59 pm
STL
- BOS
1 stop16h 22m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/1512:55 pm
BOS
- STL
1 stop22h 35m
Multiple Airlines
Wed 4/228:23 pm
STL
- BOS
2 stops15h 44m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 4/152:12 pm
BOS
- STL
1 stop6h 18m
American Airlines
Sat 4/185:54 pm
STL
- BOS
Nonstop2h 41m
American Airlines
Deal found 3/23![American Airlines logo]()
$350
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/237:05 pm
PVD
- STL
1 stop4h 40m
Southwest
Thu 4/305:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/24![Southwest logo]()
$333
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/236:55 pm
BOS
- STL
1 stop4h 50m
Southwest
Tue 4/283:55 pm
STL
- BOS
1 stop7h 10m
Southwest
Deal found 3/26![Southwest logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/236:00 am
BOS
- STL
1 stop25h 50m
Frontier
Mon 4/278:23 pm
STL
- BOS
1 stop14h 34m
Frontier
Deal found 3/24![Frontier logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Fri 4/246:00 am
BOS
- STL
1 stop25h 50m
Multiple Airlines
Fri 5/18:23 pm
STL
- BOS
2 stops20h 10m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/2610:25 am
BOS
- STL
1 stop13h 54m
Multiple Airlines
Tue 4/284:59 pm
STL
- BOS
2 stops31h 32m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/292:25 pm
PVD
- STL
1 stop7h 40m
Southwest
Fri 5/15:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/24![Southwest logo]()
$332
One-way flights from Rhode Island to St. LouisSearch for one-way flight options from Rhode Island to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
Search for one-way flight options from Rhode Island to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
This Frontier deal was found by Cheapflights users on 3/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:16 am
BOS
- STL
1 stop13h 03m
Frontier
Deal found 3/27![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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.
Sun 4/55:30 am
BOS
- STL
1 stop6h 00m
Frontier
Deal found 3/22![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 3/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:12 am
BOS
- STL
1 stop9h 21m
Frontier
Deal found 3/27![Frontier logo]()
$106
This Expedia deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 5/1010:07 am
BOS
- STL
1 stop15h 14m
Frontier
Deal found 3/23![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 3/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:00 am
BOS
- STL
1 stop12h 33m
Frontier
Deal found 3/27![Frontier logo]()
$111
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 5/910:07 am
BOS
- STL
1 stop15h 14m
Frontier
Deal found 3/23![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Mon 4/2712:31 pm
BOS
- STL
2 stops43h 19m
Frontier
Deal found 3/27![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Wed 5/278:44 am
BOS
- STL
2 stops33h 49m
Frontier
Deal found 3/27![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 5/1210:07 am
BOS
- STL
2 stops23h 48m
Frontier
Deal found 3/26![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 3/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:06 am
BOS
- STL
1 stop13h 13m
Frontier
Deal found 3/27![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 5/168:40 am
BOS
- STL
2 stops11h 43m
Frontier
Deal found 3/25![Frontier logo]()
$128
This Travelocity deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/911:26 am
BOS
- STL
1 stop21h 25m
Frontier
Deal found 3/26![Frontier logo]()
$129
Find flight deals from Rhode Island to St. Louis
Keep the following information in mind while searching for Rhode Island to St. Louis flight deals. Data was last updated March 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $304 (Delta) |
One-way from | $86 (Frontier) |
Popular in | March |
Cheapest in | August |
Average price | $511 |
Cheapflights Fare Finder
Customize your flight search to find flights from Rhode Island 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 27, 2026.
Use the filters below to find and compare flights from Rhode Island to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Mon 5/4
7:09 pm-11:36 pm
1 stop5h 27m
Lambert-St Louis
Tue 5/5
5:59 pm-11:31 pm
1 stop4h 32m
$304
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Thu 4/23
7:05 pm-10:45 pm
1 stop4h 40m
Lambert-St Louis
Thu 4/30
5:40 am-10:50 am
1 stop4h 10m
$333
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Mon 5/4
4:35 pm-11:40 pm
2 stops8h 05m
Lambert-St Louis
Mon 5/11
5:40 am-10:50 am
1 stop4h 10m
$338
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Thu 5/21
5:46 am-9:29 am
1 stop4h 43m
Lambert-St Louis
Tue 5/26
6:04 pm-11:28 pm
1 stop4h 24m
$351
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Wed 5/20
1:23 pm-5:46 pm
1 stop5h 23m
Lambert-St Louis
Sun 5/24
6:00 am-12:17 pm
1 stop5h 17m
$351
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Mon 5/4
6:45 pm-8:55 pm
Nonstop3h 10m
Lambert-St Louis
Thu 5/7
2:30 pm-6:05 pm
Nonstop2h 35m
$354
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Fri 6/5
12:40 pm-7:10 pm
1 stop7h 30m
Lambert-St Louis
Mon 6/8
8:10 pm-8:05 am
1 stop10h 55m
$367
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Tue 5/12
2:25 pm-10:00 pm
2 stops8h 35m
Lambert-St Louis
Sat 5/16
2:25 pm-11:40 pm
2 stops8h 15m
$370
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Sat 5/23
5:23 pm-9:29 pm
1 stop5h 06m
Lambert-St Louis
Tue 5/26
10:19 am-4:16 pm
1 stop4h 57m
$371
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Wed 5/13
2:25 pm-9:05 pm
1 stop7h 40m
Lambert-St Louis
Sun 5/17
5:25 am-10:55 am
1 stop4h 30m
$395
Showing 1-10 of 42 resultsSorted by cheapest first
Best time to book a flight from Rhode Island to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Rhode Island with our price prediction graph.
PVD-STL
BOS-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 Rhode Island to St. Louis
USRI-STL
PVD-STL
BOS-STL
What is the cheapest month to book a flight from Rhode Island to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Rhode Island to St. Louis (average of $273). Flying from Rhode Island to St. Louis in December is currently the most expensive (average of $368). 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.
How much does it cost to fly round-trip from Rhode Island to St. Louis?
Related info for your journey
Find useful and relevant information for your journey from Rhode Island 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
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St. Louis flight routes
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Alternative routes for Rhode Island 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.
Search flights from Rhode Island to St. Louis by cabin class
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Rhode Island and St. Louis flights
Browse other Rhode Island and St. Louis flight options. Last updated on March 27, 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 27, 2026.
Rhode Island to St. Louis flights
Consider these flights traveling from Rhode Island to St. Louis.
Top 3 airlines flying from Rhode Island to St. Louis
Discover the top 3 airlines that operate flights from Rhode Island 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 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$284 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$318 | Average$416 | FlexibilityNo cancel fee | On-time63% |