$84+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
PVD — STL
Apr 13 — Apr 201
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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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 14, 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 14, 2026.
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 4/84:30 pm
PVD
- STL
1 stop6h 37m
American Airlines
Wed 4/155:51 am
STL
- PVD
1 stop5h 46m
American Airlines
Deal found 3/10![American Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/296:00 am
PVD
- STL
1 stop26h 02m
Multiple Airlines
Mon 3/304:51 pm
STL
- PVD
2 stops19h 39m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 3/10. 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.
Wed 4/82:25 pm
PVD
- STL
2 stops8h 35m
Southwest
Wed 4/158:30 am
STL
- PVD
2 stops8h 15m
Southwest
Deal found 3/10![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 3/9. 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.
Wed 5/67:09 pm
PVD
- STL
1 stop5h 27m
Delta
Sat 5/96:00 am
STL
- PVD
1 stop5h 17m
Delta
Deal found 3/9![Delta logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:16 am
BOS
- STL
1 stop13h 03m
Frontier
Sun 5/104:55 pm
STL
- BOS
2 stops17h 50m
Frontier
Deal found 3/9![Frontier logo]()
$347
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:15 am
BOS
- STL
2 stops9h 40m
Southwest
Mon 4/67:45 pm
STL
- BOS
Nonstop2h 25m
Southwest
Deal found 3/13![Southwest logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 3/294:23 pm
BOS
- STL
1 stop15h 39m
Multiple Airlines
Mon 3/304:51 pm
STL
- BOS
1 stop27h 42m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 3/10. 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.
Wed 5/137:35 am
BOS
- STL
2 stops8h 40m
Southwest
Sat 5/165:35 pm
STL
- BOS
1 stop5h 05m
Southwest
Deal found 3/10![Southwest logo]()
$350
This American Airlines deal was found by Cheapflights users on 3/11. 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 5/78:41 am
BOS
- STL
Nonstop3h 13m
American Airlines
Mon 5/115:49 pm
STL
- BOS
Nonstop2h 41m
American Airlines
Deal found 3/11![American Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Fri 4/32:12 pm
BOS
- STL
1 stop6h 18m
American Airlines
Sat 4/42:25 pm
STL
- BOS
1 stop8h 40m
American Airlines
Deal found 3/10![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:41 am
BOS
- STL
Nonstop3h 13m
American Airlines
Mon 4/135:49 pm
STL
- BOS
Nonstop2h 41m
American Airlines
Deal found 3/14![American Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 3/239:45 am
BOS
- STL
1 stop14h 34m
Multiple Airlines
Tue 3/244:51 pm
STL
- BOS
1 stop23h 03m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$354
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 14, 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 14, 2026.
This Delta deal was found by Cheapflights users on 3/9. 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.
Tue 5/55:38 am
PVD
- STL
1 stop7h 18m
Delta
Tue 5/55:59 pm
STL
- PVD
1 stop4h 32m
Delta
Deal found 3/9![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 3/10. 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.
Wed 4/86:10 pm
PVD
- STL
1 stop5h 00m
Southwest
Wed 4/158:30 am
STL
- PVD
2 stops8h 15m
Southwest
Deal found 3/10![Southwest logo]()
$340
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/314:20 pm
PVD
- STL
1 stop6h 27m
United Airlines
Wed 4/11:10 pm
STL
- PVD
1 stop7h 18m
United Airlines
Deal found 3/9![United Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 3/9. 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 5/56:20 am
BOS
- STL
2 stops7h 30m
Southwest
Tue 5/52:30 pm
STL
- BOS
2 stops7h 10m
Southwest
Deal found 3/9![Southwest logo]()
$347
This Delta deal was found by Cheapflights users on 3/10. 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.
Wed 5/271:10 pm
BOS
- STL
1 stop5h 06m
Delta
Tue 6/92:18 pm
STL
- BOS
1 stop4h 27m
Delta
Deal found 3/10![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 3/9. 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 5/55:45 am
BOS
- STL
Nonstop3h 00m
Southwest
Fri 5/82:30 pm
STL
- BOS
Nonstop2h 35m
Southwest
Deal found 3/9![Southwest logo]()
$352
This Southwest deal was found by Cheapflights users on 3/10. 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.
Wed 5/66:20 am
BOS
- STL
2 stops7h 30m
Southwest
Sat 5/92:25 pm
STL
- BOS
2 stops8h 15m
Southwest
Deal found 3/10![Southwest logo]()
$356
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/97:00 am
BOS
- STL
1 stop15h 52m
United Airlines
Mon 4/207:45 am
STL
- BOS
2 stops9h 34m
United Airlines
Deal found 3/12![United Airlines logo]()
$445
This Delta deal was found by Cheapflights users on 3/10. 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 6/46:00 am
PVD
- STL
1 stop7h 20m
Delta
Mon 6/85:30 pm
STL
- PVD
1 stop5h 28m
Delta
Deal found 3/10![Delta logo]()
$405
This Southwest deal was found by Cheapflights users on 3/11. 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.
Mon 4/133:45 pm
BOS
- STL
1 stop8h 00m
Southwest
Fri 4/177:40 pm
STL
- BOS
Nonstop2h 30m
Southwest
Deal found 3/11![Southwest logo]()
$370
This Southwest deal was found by Cheapflights users on 3/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:50 am
PVD
- STL
1 stop4h 25m
Southwest
Fri 5/15:40 am
STL
- PVD
1 stop4h 10m
Southwest
Deal found 3/12![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 3/9. 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.
Fri 4/107:05 pm
PVD
- STL
1 stop4h 40m
Southwest
Sun 4/125:25 am
STL
- PVD
1 stop4h 30m
Southwest
Deal found 3/9![Southwest logo]()
$407
This Southwest deal was found by Cheapflights users on 3/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1310:45 am
BOS
- STL
1 stop5h 20m
Southwest
Sun 5/175:25 am
STL
- BOS
1 stop6h 30m
Southwest
Deal found 3/12![Southwest logo]()
$409
This Southwest deal was found by Cheapflights users on 3/11. 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 4/15:25 pm
BOS
- STL
Nonstop3h 10m
Southwest
Sun 4/55:50 am
STL
- BOS
1 stop5h 05m
Southwest
Deal found 3/11![Southwest logo]()
$427
This Southwest deal was found by Cheapflights users on 3/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:25 pm
PVD
- STL
2 stops8h 35m
Southwest
Fri 4/172:15 pm
STL
- PVD
2 stops7h 25m
Southwest
Deal found 3/12![Southwest logo]()
$431
This Southwest deal was found by Cheapflights users on 3/9. 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 5/122:25 pm
BOS
- STL
2 stops8h 35m
Southwest
Fri 5/152:20 pm
STL
- BOS
2 stops8h 35m
Southwest
Deal found 3/9![Southwest logo]()
$442
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/37:15 am
BOS
- STL
1 stop6h 15m
Southwest
Mon 4/67:45 pm
STL
- BOS
Nonstop2h 25m
Southwest
Deal found 3/13![Southwest logo]()
$445
This Southwest deal was found by Cheapflights users on 3/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/15:30 am
BOS
- STL
Nonstop3h 05m
Southwest
Sat 4/410:15 am
STL
- BOS
Nonstop2h 30m
Southwest
Deal found 3/12![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:25 pm
PVD
- STL
1 stop6h 50m
Southwest
Wed 4/225:35 am
STL
- PVD
1 stop4h 15m
Southwest
Deal found 3/13![Southwest logo]()
$485
Last-minute flights from Rhode Island to St. LouisDiscover last-minute flight deals from Rhode Island to St. Louis. Data last updated March 14, 2026 and is based on user searches.
Discover last-minute flight deals from Rhode Island to St. Louis. Data last updated March 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 3/239:45 am
BOS
- STL
1 stop14h 34m
Multiple Airlines
Tue 3/244:51 pm
STL
- BOS
1 stop23h 03m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/296:00 am
PVD
- STL
1 stop26h 02m
Multiple Airlines
Mon 3/304:51 pm
STL
- PVD
2 stops19h 39m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 3/294:23 pm
BOS
- STL
1 stop15h 39m
Multiple Airlines
Mon 3/304:51 pm
STL
- BOS
1 stop27h 42m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 4/112:42 pm
BOS
- STL
1 stop29h 52m
Frontier
Sun 4/511:21 am
STL
- BOS
1 stop23h 24m
Frontier
Deal found 3/11![Frontier logo]()
$350
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Fri 4/32:12 pm
BOS
- STL
1 stop6h 18m
American Airlines
Sat 4/42:25 pm
STL
- BOS
1 stop8h 40m
American Airlines
Deal found 3/10![American Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:15 am
BOS
- STL
2 stops9h 40m
Southwest
Mon 4/67:45 pm
STL
- BOS
Nonstop2h 25m
Southwest
Deal found 3/13![Southwest logo]()
$348
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 4/84:30 pm
PVD
- STL
1 stop6h 37m
American Airlines
Wed 4/155:51 am
STL
- PVD
1 stop5h 46m
American Airlines
Deal found 3/10![American Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 3/10. 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.
Wed 4/82:25 pm
PVD
- STL
2 stops8h 35m
Southwest
Wed 4/158:30 am
STL
- PVD
2 stops8h 15m
Southwest
Deal found 3/10![Southwest logo]()
$345
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:41 am
BOS
- STL
Nonstop3h 13m
American Airlines
Mon 4/135:49 pm
STL
- BOS
Nonstop2h 41m
American Airlines
Deal found 3/14![American Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:23 pm
BOS
- STL
1 stop8h 35m
Multiple Airlines
Mon 4/138:19 pm
STL
- BOS
2 stops16h 36m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1112:06 pm
BOS
- STL
1 stop12h 19m
Frontier
Mon 4/134:59 pm
STL
- BOS
1 stop16h 22m
Frontier
Deal found 3/10![Frontier logo]()
$355
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Sat 4/251:07 pm
PVD
- STL
1 stop7h 26m
American Airlines
Sat 5/22:33 pm
STL
- PVD
1 stop6h 57m
American Airlines
Deal found 3/10![American Airlines logo]()
$356
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 14, 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 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 4/112:42 pm
BOS
- STL
1 stop29h 52m
Frontier
Deal found 3/11![Frontier logo]()
$84
This Expedia deal was found by Cheapflights users on 3/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:16 am
BOS
- STL
1 stop13h 03m
Frontier
Deal found 3/9![Frontier logo]()
$96
This Frontier deal was found by Cheapflights users on 3/9. 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.
Sun 4/125:30 am
BOS
- STL
1 stop6h 08m
Frontier
Deal found 3/9![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:44 am
BOS
- STL
2 stops49h 11m
Frontier
Deal found 3/10![Frontier logo]()
$101
This Frontier deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
BOS
- STL
1 stop12h 33m
Frontier
Deal found 3/14![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:01 am
BOS
- STL
2 stops25h 49m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$117
This Priceline deal was found by Cheapflights users on 3/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
BOS
- STL
1 stop8h 22m
Frontier
Deal found 3/10![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/15:45 am
BOS
- STL
2 stops36h 49m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:16 am
BOS
- STL
2 stops22h 39m
Frontier
Deal found 3/10![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:01 am
BOS
- STL
2 stops36h 33m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:36 pm
BOS
- STL
2 stops11h 43m
Frontier
Deal found 3/13![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:49 pm
BOS
- STL
2 stops38h 01m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$128
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 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $335 (American Airlines) |
One-way from | $84 (Kiwi.com) |
Popular in | April |
Cheapest in | August |
Average price | $506 |
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 14, 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
Tue 5/5
5:38 am-11:56 am
1 stop7h 18m
Lambert-St Louis
Tue 5/5
5:59 pm-11:31 pm
1 stop4h 32m
$335
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Wed 4/8
6:10 pm-10:10 pm
1 stop5h 00m
Lambert-St Louis
Wed 4/15
8:30 am-5:45 pm
2 stops8h 15m
$340
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Tue 5/5
6:20 am-12:50 pm
2 stops7h 30m
Lambert-St Louis
Tue 5/5
2:30 pm-10:40 pm
2 stops7h 10m
$347
Quickest round-trip
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Tue 5/5
5:45 am-7:45 am
Nonstop3h 00m
Lambert-St Louis
Fri 5/8
2:30 pm-6:05 pm
Nonstop2h 35m
$352
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Wed 5/6
6:20 am-12:50 pm
2 stops7h 30m
Lambert-St Louis
Sat 5/9
2:25 pm-11:40 pm
2 stops8h 15m
$356
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Mon 4/13
3:45 pm-10:45 pm
1 stop8h 00m
Lambert-St Louis
Fri 4/17
7:40 pm-11:10 pm
Nonstop2h 30m
$370
BostonSt. Louis
BOS - STL
BOSSTL
Boston Logan Intl
Wed 5/27
1:10 pm-5:16 pm
1 stop5h 06m
Lambert-St Louis
Tue 6/9
2:18 pm-7:45 pm
1 stop4h 27m
$373
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Thu 6/4
6:00 am-12:20 pm
1 stop7h 20m
Lambert-St Louis
Mon 6/8
5:30 pm-11:58 pm
1 stop5h 28m
$405
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Mon 4/27
6:50 am-10:15 am
1 stop4h 25m
Lambert-St Louis
Fri 5/1
5:40 am-10:50 am
1 stop4h 10m
$406
ProvidenceSt. Louis
PVD - STL
PVDSTL
Providence-TFGreen
Fri 4/10
7:05 pm-10:45 pm
1 stop4h 40m
Lambert-St Louis
Sun 4/12
5:25 am-10:55 am
1 stop4h 30m
$407
Showing 1-10 of 40 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.
BOS-STL
PVD-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
BOS-STL
PVD-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.
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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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
Find flights from Rhode Island to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Rhode Island and St. Louis flights
Browse other Rhode Island and St. Louis flight options. Last updated on March 14, 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 14, 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$284 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$418 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$318 | Average$416 | FlexibilityNo cancel fee | On-time63% |