$81+ Cheap flights from Raleigh to St. Louis (RDU - 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — STL
Jul 25 — Aug 11
Round-trip
1 adult, Economy
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Find cheap flights from Raleigh 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Raleigh-Durham to Lambert-St Louis are usually found in October or January, booked 65 days in advance, depart on a Wednesday or Saturday and return on a Saturday
Cheap flight deals from Raleigh to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Raleigh to St. LouisExplore the most affordable flight options available from Raleigh to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
Explore the most affordable flight options available from Raleigh to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
This Trip.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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.
Wed 7/295:29 pm
RDU
- STL
1 stop7h 30m
Frontier
Sat 8/14:57 pm
STL
- RDU
1 stop6h 06m
Frontier
Deal found 6/21![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 8/228:16 pm
RDU
- STL
2 stops22h 06m
Frontier
Sun 8/306:17 pm
STL
- RDU
1 stop13h 15m
Frontier
Deal found 6/25![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:32 pm
RDU
- STL
2 stops23h 05m
Frontier
Thu 7/166:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/22![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Mon 7/137:32 pm
RDU
- STL
2 stops23h 05m
Frontier
Wed 7/154:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/24![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Fri 7/1012:04 pm
RDU
- STL
1 stop21h 53m
Frontier
Tue 7/146:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/24![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:31 pm
RDU
- STL
1 stop10h 28m
Frontier
Mon 8/104:57 pm
STL
- RDU
1 stop14h 14m
Frontier
Deal found 6/22![Frontier logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:14 pm
RDU
- STL
1 stop15h 43m
Frontier
Thu 7/166:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/23![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Fri 9/184:20 pm
RDU
- STL
1 stop18h 20m
Multiple Airlines
Sun 9/2010:35 am
STL
- RDU
2 stops10h 50m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/296:14 pm
RDU
- STL
2 stops24h 23m
Frontier
Sun 8/26:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/21![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/296:14 pm
RDU
- STL
2 stops24h 23m
Frontier
Mon 8/34:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/21![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:29 pm
RDU
- STL
2 stops25h 08m
Frontier
Wed 7/294:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/22![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:14 pm
RDU
- STL
2 stops24h 23m
Frontier
Fri 7/174:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/22![Frontier logo]()
$227
Best flights from Raleigh to St. LouisDiscover carefully curated flight deals from Raleigh to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
Discover carefully curated flight deals from Raleigh to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/48:56 am
RDU
- STL
2 stops9h 41m
Frontier
Sat 8/84:57 pm
STL
- RDU
1 stop14h 14m
Frontier
Deal found 6/20![Frontier logo]()
$239
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/46:55 pm
RDU
- STL
Nonstop2h 05m
Southwest
Sat 8/89:00 am
STL
- RDU
Nonstop1h 50m
Southwest
Deal found 6/20![Southwest logo]()
$271
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:06 am
RDU
- STL
1 stop4h 56m
United Airlines
Wed 8/128:50 am
STL
- RDU
2 stops11h 10m
United Airlines
Deal found 6/20![United Airlines logo]()
$366
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/217:25 pm
RDU
- STL
Nonstop2h 05m
Southwest
Tue 7/287:10 pm
STL
- RDU
Nonstop1h 55m
Southwest
Deal found 6/21![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 6/22. 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.
Sat 7/256:10 am
RDU
- STL
1 stop5h 30m
Southwest
Mon 8/106:50 pm
STL
- RDU
Nonstop1h 50m
Southwest
Deal found 6/22![Southwest logo]()
$298
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/812:30 pm
RDU
- STL
Nonstop2h 00m
Southwest
Mon 8/106:05 am
STL
- RDU
1 stop6h 55m
Southwest
Deal found 6/21![Southwest logo]()
$298
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:25 am
RDU
- STL
2 stops8h 13m
United Airlines
Sat 8/298:00 am
STL
- RDU
1 stop5h 17m
United Airlines
Deal found 6/24![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 6/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:55 am
RDU
- STL
2 stops9h 43m
United Airlines
Wed 9/210:53 am
STL
- RDU
2 stops12h 06m
United Airlines
Deal found 6/25![United Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/296:35 am
RDU
- STL
Nonstop2h 05m
Southwest
Thu 7/305:20 pm
STL
- RDU
1 stop4h 05m
Southwest
Deal found 6/20![Southwest logo]()
$376
Last-minute flights from Raleigh to St. LouisDiscover last-minute flight deals from Raleigh to St. Louis. Data last updated June 25, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to St. Louis. Data last updated June 25, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Fri 7/1012:04 pm
RDU
- STL
1 stop21h 53m
Frontier
Tue 7/146:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/24![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Fri 7/1012:04 pm
RDU
- STL
1 stop21h 53m
Frontier
Sat 7/114:57 pm
STL
- RDU
1 stop6h 06m
Frontier
Deal found 6/25![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:14 pm
RDU
- STL
1 stop15h 43m
Frontier
Thu 7/166:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/23![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:32 pm
RDU
- STL
2 stops23h 05m
Frontier
Thu 7/166:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/22![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Mon 7/137:32 pm
RDU
- STL
2 stops23h 05m
Frontier
Wed 7/154:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/24![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:15 am
RDU
- STL
1 stop12h 22m
Frontier
Thu 7/166:34 pm
STL
- RDU
2 stops19h 03m
Frontier
Deal found 6/23![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:14 pm
RDU
- STL
2 stops24h 23m
Frontier
Fri 7/174:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/22![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:14 pm
RDU
- STL
2 stops24h 23m
Frontier
Tue 7/216:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/23![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:29 pm
RDU
- STL
2 stops25h 08m
Frontier
Wed 7/294:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/22![Frontier logo]()
$226
This Trip.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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.
Wed 7/295:29 pm
RDU
- STL
1 stop7h 30m
Frontier
Sat 8/14:57 pm
STL
- RDU
1 stop6h 06m
Frontier
Deal found 6/21![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/296:14 pm
RDU
- STL
2 stops24h 23m
Frontier
Sun 8/26:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/21![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/296:14 pm
RDU
- STL
2 stops24h 23m
Frontier
Mon 8/34:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/21![Frontier logo]()
$222
One-way flights from Raleigh to St. LouisSearch for one-way flight options from Raleigh to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
Search for one-way flight options from Raleigh to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
This Trip.com deal was found by Cheapflights users on 6/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:05 am
RDU
- STL
1 stop12h 17m
Frontier
Deal found 6/23![Frontier logo]()
$81
This Trip.com deal was found by Cheapflights users on 6/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:05 am
RDU
- STL
1 stop12h 17m
Frontier
Deal found 6/22![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sun 8/166:14 pm
RDU
- STL
1 stop15h 43m
Frontier
Deal found 6/25![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:15 am
RDU
- STL
1 stop12h 22m
Frontier
Deal found 6/23![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Mon 9/214:20 pm
RDU
- STL
1 stop18h 20m
Frontier
Deal found 6/24![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/216:14 pm
RDU
- STL
1 stop15h 43m
Frontier
Deal found 6/21![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/184:20 pm
RDU
- STL
1 stop18h 20m
Frontier
Deal found 6/21![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/194:20 pm
RDU
- STL
1 stop18h 20m
Frontier
Deal found 6/21![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Sat 8/227:05 am
RDU
- STL
1 stop10h 06m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 9/204:20 pm
RDU
- STL
1 stop18h 20m
Frontier
Deal found 6/24![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Sat 7/252:31 pm
RDU
- STL
1 stop10h 28m
Frontier
Deal found 6/24![Frontier logo]()
$110
Find flight deals from Raleigh to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $208 (Trip.com) |
One-way from | $81 (Trip.com) |
Popular in | September |
Cheapest in | October |
Average price | $421 |
Good round-trip deal | $408 or less |
Good one-way deal | $208 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Raleigh 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 June 25, 2026.
Use the filters below to find and compare flights from Raleigh to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Tue 8/4
8:56 am-5:37 pm
2 stops9h 41m
Lambert-St Louis
Sat 8/8
4:57 pm-8:11 am
1 stop14h 14m
$239
Quickest round-trip
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Tue 8/4
6:55 pm-8:00 pm
Nonstop2h 05m
Lambert-St Louis
Sat 8/8
9:00 am-11:50 am
Nonstop1h 50m
$271
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Tue 7/21
7:25 pm-8:30 pm
Nonstop2h 05m
Lambert-St Louis
Tue 7/28
7:10 pm-10:05 pm
Nonstop1h 55m
$271
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Sat 7/25
6:10 am-10:40 am
1 stop5h 30m
Lambert-St Louis
Mon 8/10
6:50 pm-9:40 pm
Nonstop1h 50m
$298
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Sat 8/8
12:30 pm-1:30 pm
Nonstop2h 00m
Lambert-St Louis
Mon 8/10
6:05 am-2:00 pm
1 stop6h 55m
$298
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Tue 8/11
8:06 am-12:02 pm
1 stop4h 56m
Lambert-St Louis
Wed 8/12
8:50 am-9:00 pm
2 stops11h 10m
$366
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Tue 8/25
8:25 am-3:38 pm
2 stops8h 13m
Lambert-St Louis
Sat 8/29
8:00 am-2:17 pm
1 stop5h 17m
$366
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Wed 7/29
6:35 am-7:40 am
Nonstop2h 05m
Lambert-St Louis
Thu 7/30
5:20 pm-10:25 pm
1 stop4h 05m
$376
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Mon 8/31
6:55 am-3:38 pm
2 stops9h 43m
Lambert-St Louis
Wed 9/2
10:53 am-11:59 pm
2 stops12h 06m
$380
Cheapest one-way
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Sat 8/15
12:26 pm-7:23 pm
1 stop7h 57m
$121
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Raleigh to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Raleigh to St. Louis in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Raleigh-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Raleigh-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Raleigh-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Raleigh-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Raleigh to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Raleigh with our price prediction graph.
RDU-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 Raleigh to St. Louis
Prices
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How far ahead should I book a flight from Raleigh to St. Louis?
Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Raleigh to St. Louis?
Currently, October is the cheapest month in which you can book a flight from Raleigh to St. Louis (average of $346). Flying from Raleigh to St. Louis in September is currently the most expensive (average of $490). 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 RDU to STL?
Find hourly flight availability from Raleigh 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 June 25, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 36% on flights from Raleigh to St. Louis by exploring options for tickets in the afternoon.
What’s the top layover airport for flights from Raleigh to St. Louis?
Share of 1-stop round-trip flights from Raleigh to St. Louis chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from Raleigh to St. Louis on Cheapflights.
What’s the cheapest layover airport for flights from Raleigh to St. Louis?
Average round-trip fare for 1-stop flights from Raleigh to St. Louis, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Charlotte (CLT) is the most affordable 1-stop option, with an average round-trip price of $208.
What’s the fastest layover option from Raleigh to St. Louis?
Shortest average travel time for 1-stop one-way flights from Raleigh to St. Louis, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Charlotte (CLT) have the shortest average one-way travel time for 1-stop routes: 4h 14m.
Which airport typically offers the quickest layover for flights from Raleigh to St. Louis?
Average layover duration for 1-stop one-way flights from Raleigh to St. Louis, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Charlotte (CLT) offer the fastest connection on this route, with an average layover time of 1h 03m.
The best insider tips for Raleigh to St. Louis flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to St. Louis trip
Our travel experts
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 25, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Raleigh to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Raleigh 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
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
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Raleigh and St. Louis flights
Browse other Raleigh and St. Louis flight options. Last updated on June 25, 2026.
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Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 25, 2026.
Top 5 airlines flying from Raleigh to St. Louis
Discover the top 5 airlines that operate flights from Raleigh 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 June 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$124 | Average$244 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$180 | Average$196 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$368 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$226 | Average$350 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$272 | Average$464 | FlexibilityNo cancel fee | On-time63% |