$61+ 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — STL
Mar 13 — Mar 201
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 83 days in advance, depart on a Wednesday or Tuesday and return on a Monday
Cheap flight deals from Raleigh to St. Louis
Cheapest
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 February 11, 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 February 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:53 pm
RDU
- STL
1 stop8h 34m
Frontier
Wed 3/1111:32 am
STL
- RDU
1 stop11h 14m
Frontier
Deal found 2/7![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:10 am
RDU
- STL
1 stop25h 41m
Frontier
Sun 3/13:49 pm
STL
- RDU
1 stop17h 49m
Frontier
Deal found 2/8![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/116:50 am
RDU
- STL
1 stop4h 47m
Frontier
Wed 3/1811:32 am
STL
- RDU
1 stop11h 14m
Frontier
Deal found 2/9![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:50 pm
RDU
- STL
1 stop13h 01m
Frontier
Mon 2/238:22 pm
STL
- RDU
1 stop26h 48m
Frontier
Deal found 2/8![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/96:00 am
RDU
- STL
1 stop8h 19m
Frontier
Mon 3/168:10 pm
STL
- RDU
1 stop11h 27m
Frontier
Deal found 2/9![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Thu 3/124:07 pm
RDU
- STL
1 stop22h 27m
Frontier
Mon 3/168:10 pm
STL
- RDU
1 stop11h 27m
Frontier
Deal found 2/10![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/284:07 pm
RDU
- STL
1 stop15h 43m
Frontier
Wed 4/298:13 pm
STL
- RDU
1 stop11h 33m
Frontier
Deal found 2/10![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:20 am
RDU
- STL
1 stop25h 31m
Frontier
Sat 2/218:17 pm
STL
- RDU
1 stop26h 53m
Frontier
Deal found 2/7![Frontier logo]()
$154
This CheapOair deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/249:25 pm
RDU
- STL
1 stop26h 02m
Frontier
Tue 3/33:49 pm
STL
- RDU
1 stop21h 09m
Frontier
Deal found 2/8![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/154:07 pm
RDU
- STL
1 stop22h 27m
Frontier
Fri 3/2012:16 pm
STL
- RDU
1 stop10h 55m
Frontier
Deal found 2/10![Frontier logo]()
$157
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 February 11, 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 February 11, 2026.
This CheapOair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:00 am
RDU
- STL
1 stop5h 30m
Frontier
Tue 5/124:55 pm
STL
- RDU
1 stop20h 47m
Frontier
Deal found 2/10![Frontier logo]()
$171
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:20 am
RDU
- STL
1 stop3h 49m
Delta
Mon 5/187:09 pm
STL
- RDU
1 stop3h 59m
Delta
Deal found 2/8![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:25 am
RDU
- STL
1 stop4h 11m
Delta
Wed 5/206:00 am
STL
- RDU
1 stop6h 36m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. 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.
Fri 5/157:55 pm
RDU
- STL
1 stop5h 04m
Delta
Tue 5/197:15 am
STL
- RDU
1 stop6h 53m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. 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.
Mon 5/187:55 pm
RDU
- STL
1 stop5h 04m
Delta
Wed 5/206:00 am
STL
- RDU
1 stop6h 36m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. 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 5/136:25 am
RDU
- STL
1 stop4h 11m
Delta
Mon 5/187:09 pm
STL
- RDU
1 stop3h 59m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. 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 5/129:37 am
RDU
- STL
1 stop4h 28m
Delta
Sat 5/166:00 am
STL
- RDU
1 stop4h 50m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. 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.
Sun 5/175:20 am
RDU
- STL
1 stop3h 58m
Delta
Mon 5/187:09 pm
STL
- RDU
1 stop3h 59m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:25 am
RDU
- STL
1 stop4h 11m
Delta
Mon 5/187:09 pm
STL
- RDU
1 stop3h 59m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/9. 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.
Fri 5/157:55 pm
RDU
- STL
1 stop5h 04m
Delta
Mon 5/187:09 pm
STL
- RDU
1 stop3h 59m
Delta
Deal found 2/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:55 pm
RDU
- STL
1 stop5h 04m
Delta
Tue 5/195:15 pm
STL
- RDU
1 stop5h 53m
Delta
Deal found 2/8![Delta logo]()
$197
Last-minute flights from Raleigh to St. LouisDiscover last-minute flight deals from Raleigh to St. Louis. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to St. Louis. Data last updated February 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:20 am
RDU
- STL
1 stop25h 31m
Frontier
Sat 2/218:17 pm
STL
- RDU
1 stop26h 53m
Frontier
Deal found 2/7![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:50 pm
RDU
- STL
1 stop13h 01m
Frontier
Mon 2/238:22 pm
STL
- RDU
1 stop26h 48m
Frontier
Deal found 2/8![Frontier logo]()
$141
This CheapOair deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/249:25 pm
RDU
- STL
1 stop26h 02m
Frontier
Tue 3/33:49 pm
STL
- RDU
1 stop21h 09m
Frontier
Deal found 2/8![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:10 am
RDU
- STL
1 stop25h 41m
Frontier
Sun 3/13:49 pm
STL
- RDU
1 stop17h 49m
Frontier
Deal found 2/8![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Fri 2/276:54 pm
RDU
- STL
1 stop12h 57m
Frontier
Sat 2/288:17 pm
STL
- RDU
1 stop18h 28m
Frontier
Deal found 2/9![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:53 pm
RDU
- STL
1 stop8h 34m
Frontier
Wed 3/1111:32 am
STL
- RDU
1 stop11h 14m
Frontier
Deal found 2/7![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/96:00 am
RDU
- STL
1 stop8h 19m
Frontier
Mon 3/168:10 pm
STL
- RDU
1 stop11h 27m
Frontier
Deal found 2/9![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/116:50 am
RDU
- STL
1 stop4h 47m
Frontier
Wed 3/1811:32 am
STL
- RDU
1 stop11h 14m
Frontier
Deal found 2/9![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Thu 3/124:07 pm
RDU
- STL
1 stop22h 27m
Frontier
Mon 3/168:10 pm
STL
- RDU
1 stop11h 27m
Frontier
Deal found 2/10![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/154:07 pm
RDU
- STL
1 stop22h 27m
Frontier
Fri 3/2012:16 pm
STL
- RDU
1 stop10h 55m
Frontier
Deal found 2/10![Frontier logo]()
$157
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 February 11, 2026.
Search for one-way flight options from Raleigh to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This Trip.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/226:10 am
RDU
- STL
1 stop25h 41m
Frontier
Deal found 2/8![Frontier logo]()
$61
This Priceline deal was found by Cheapflights users on 2/10. 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.
Wed 3/45:54 pm
RDU
- STL
1 stop5h 33m
Frontier
Deal found 2/10![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Fri 2/276:54 pm
RDU
- STL
1 stop12h 57m
Frontier
Deal found 2/9![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:25 am
RDU
- STL
1 stop25h 26m
Frontier
Deal found 2/8![Frontier logo]()
$67
This Expedia deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/39:25 pm
RDU
- STL
1 stop26h 02m
Frontier
Deal found 2/10![Frontier logo]()
$70
This WAYA deal was found by Cheapflights users on 2/9. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:50 am
RDU
- STL
1 stop4h 47m
Frontier
Deal found 2/9![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:10 am
RDU
- STL
1 stop25h 41m
Frontier
Deal found 2/8![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Thu 3/56:55 pm
RDU
- STL
1 stop17h 54m
Frontier
Deal found 2/10![Frontier logo]()
$74
This WAYA deal was found by Cheapflights users on 2/11. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:50 am
RDU
- STL
1 stop4h 47m
Frontier
Deal found 2/11![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:00 am
RDU
- STL
1 stop5h 31m
Frontier
Deal found 2/8![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Thu 2/266:10 am
RDU
- STL
1 stop25h 41m
Frontier
Deal found 2/10![Frontier logo]()
$79
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 February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $131 (Kiwi.com) |
One-way from | $61 (Trip.com) |
Popular in | June |
Cheapest in | October |
Average price | $384 |
Good round-trip deal | $377 or less |
Good one-way deal | $168 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 February 11, 2026.
Use the filters below to find and compare flights from Raleigh to St. Louis that are best for you.
Fly from
Raleigh
Fly to
St. Louis
Route
Depart
Return
Price
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Thu 5/7
6:00 am-10:30 am
1 stop5h 30m
Lambert-St Louis
Tue 5/12
4:55 pm-2:42 pm
1 stop20h 47m
$171
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Sat 5/16
5:20 am-8:09 am
1 stop3h 49m
Lambert-St Louis
Mon 5/18
7:09 pm-12:08 am
1 stop3h 59m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Thu 5/14
6:25 am-9:36 am
1 stop4h 11m
Lambert-St Louis
Wed 5/20
6:00 am-1:36 pm
1 stop6h 36m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Fri 5/15
7:55 pm-11:59 pm
1 stop5h 04m
Lambert-St Louis
Tue 5/19
7:15 am-3:08 pm
1 stop6h 53m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Mon 5/18
7:55 pm-11:59 pm
1 stop5h 04m
Lambert-St Louis
Wed 5/20
6:00 am-1:36 pm
1 stop6h 36m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Wed 5/13
6:25 am-9:36 am
1 stop4h 11m
Lambert-St Louis
Mon 5/18
7:09 pm-12:08 am
1 stop3h 59m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Tue 5/12
9:37 am-1:05 pm
1 stop4h 28m
Lambert-St Louis
Sat 5/16
6:00 am-11:50 am
1 stop4h 50m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Sun 5/17
5:20 am-8:18 am
1 stop3h 58m
Lambert-St Louis
Mon 5/18
7:09 pm-12:08 am
1 stop3h 59m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Thu 5/14
6:25 am-9:36 am
1 stop4h 11m
Lambert-St Louis
Mon 5/18
7:09 pm-12:08 am
1 stop3h 59m
$197
RaleighSt. Louis
RDU - STL
RDUSTL
Raleigh-Durham
Fri 5/15
7:55 pm-11:59 pm
1 stop5h 04m
Lambert-St Louis
Mon 5/18
7:09 pm-12:08 am
1 stop3h 59m
$197
Showing 1-10 of 23 results
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | 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
How far ahead should I book a flight from Raleigh to St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from Raleigh to St. Louis. Price data was last updated on February 6, 2026.
Booking 81 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, November is the cheapest month in which you can book a flight from Raleigh to St. Louis (average of $196). Flying from Raleigh to St. Louis in March is currently the most expensive (average of $248). 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 February 11, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 21% on flights from Raleigh to St. Louis by exploring options for tickets in the afternoon.
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 February 11, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and American 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.
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus
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Raleigh and St. Louis flights
Browse other Raleigh and St. Louis flight options. Last updated on February 11, 2026.
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Top 4 airlines flying from Raleigh to St. Louis
Discover the top 4 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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$149 | Average$258 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$226 | Average$384 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$248 | Average$384 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$271 | Average$418 | FlexibilityNo cancel fee | On-time63% |