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$73+ Cheap flights from St. Louis to Raleigh (STL - RDU)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — RDU
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Raleigh-Durham are usually found in August or October, booked 36 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from St. Louis to Raleigh

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Raleigh (RDU). 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 August 20, 2025.

Round-trip from

$160
(FlightHub)

One-way from

$73
(Priceline)

Popular in

June

Cheapest in

August

Average price

$334

Good round-trip deal

$217 or less

Good one-way deal

$263 or less
From Lambert-St Louis to Raleigh-Durham
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One-way flight from Lambert-St Louis to Raleigh-Durham
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Highest demand for flights based on searches. 8% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Raleigh-Durham.
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Price to beat on a one-way flight from Lambert-St Louis to Raleigh-Durham.
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Find flight deals from St. Louis to Raleigh

Cheapest flights from St. Louis to Raleigh
Explore the most affordable flight options available from St. Louis to Raleigh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:57 pmSTL - RDU
1 stop27h 11mFrontier
Mon 9/226:22 amRDU - STL
1 stop9h 42mFrontier
Deal found 8/18$160
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:49 amSTL - RDU
1 stop22h 14mFrontier
Mon 9/86:22 amRDU - STL
1 stop9h 42mFrontier
Deal found 8/18$163
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/114:00 pmSTL - RDU
1 stop5h 50mFrontier
Sun 9/146:22 amRDU - STL
1 stop9h 42mFrontier
Deal found 8/19$165
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 11/1311:07 amSTL - RDU
1 stop5h 55mFrontier
Sun 11/166:10 amRDU - STL
1 stop5h 02mFrontier
Deal found 8/19$175
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/254:00 pmSTL - RDU
1 stop5h 50mFrontier
Sun 9/286:38 pmRDU - STL
1 stop21h 26mFrontier
Deal found 8/18$176
This Frontier deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:00 pmSTL - RDU
1 stop5h 50mFrontier
Sun 9/79:55 pmRDU - STL
2 stops18h 09mFrontier
Deal found 8/17$186
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:57 pmSTL - RDU
1 stop18h 56mFrontier
Sat 9/2710:48 amRDU - STL
1 stop27h 19mFrontier
Deal found 8/18$194
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:00 pmSTL - RDU
1 stop5h 58mFrontier
Sat 9/277:03 pmRDU - STL
1 stop19h 04mFrontier
Deal found 8/18$198
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:55 pmSTL - RDU
1 stop19h 43mFrontier
Sat 9/277:03 pmRDU - STL
1 stop19h 04mFrontier
Deal found 8/19$205
This Priceline deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/233:02 pmSTL - RDU
1 stop6h 36mFrontier
Mon 8/256:10 amRDU - STL
1 stop7h 46mFrontier
Deal found 8/19$208
This Frontier deal was found by Cheapflights users on 8/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:01 pmSTL - RDU
1 stop7h 27mFrontier
Sat 8/237:30 amRDU - STL
1 stop7h 03mFrontier
Deal found 8/20$211

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Raleigh 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 August 20, 2025.
Use the filters below to find and compare flights from St. Louis to Raleigh that are best for you.

Fly from

St. Louis

Fly to

Raleigh

Route

Depart

Return

Price

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 9/18

4:00 pm-10:50 pm

1 stop5h 50m

Raleigh-Durham

Sun 9/21

9:02 pm-1:02 pm

1 stop17h 00m

$160

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Fri 9/19

1:57 pm-6:08 pm

1 stop27h 11m

Raleigh-Durham

Mon 9/22

6:22 am-3:04 pm

1 stop9h 42m

$160

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 9/4

4:00 pm-5:38 pm

1 stop24h 38m

Raleigh-Durham

Sun 9/7

9:02 pm-1:02 pm

1 stop17h 00m

$160

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sun 9/28

10:39 am-10:03 am

1 stop22h 24m

Raleigh-Durham

Wed 10/15

12:30 pm-10:37 am

1 stop23h 07m

$163

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 9/4

10:49 am-10:03 am

1 stop22h 14m

Raleigh-Durham

Mon 9/8

6:22 am-3:04 pm

1 stop9h 42m

$163

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sun 10/19

11:32 am-10:59 pm

1 stop10h 27m

Raleigh-Durham

Fri 10/24

6:15 am-10:37 am

1 stop5h 22m

$163

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 9/25

10:49 am-10:03 am

1 stop22h 14m

Raleigh-Durham

Sun 9/28

6:38 pm-3:04 pm

1 stop21h 26m

$163

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sun 9/14

10:39 am-10:03 am

1 stop22h 24m

Raleigh-Durham

Sun 9/21

6:38 pm-3:04 pm

1 stop21h 26m

$163

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 9/11

4:00 pm-10:50 pm

1 stop5h 50m

Raleigh-Durham

Sun 9/14

6:22 am-3:04 pm

1 stop9h 42m

$165

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 11/13

11:07 am-6:02 pm

1 stop5h 55m

Raleigh-Durham

Sun 11/16

6:10 am-10:12 am

1 stop5h 02m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 19 results
1
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The best insider tips for St. Louis to Raleigh flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Raleigh trip
Airports
STL

Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

Read more about STLby Taryn White
RDU

At RDU, rideshare apps like Uber and Lyft are available at pre-arranged zones for convenient city access.

Read more about RDUby John Walton
Our travel experts
John Walton

John Walton

Expert on RDU

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Best time to book a flight from St. Louis to Raleigh

Have a flexible travel schedule? Discover the best time to fly to Raleigh from St. Louis with our price prediction graph.
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 St. Louis to Raleigh

How far ahead should I book a flight from St. Louis to Raleigh?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Raleigh. Price data was last updated on August 8, 2025.

Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Raleigh. 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 St. Louis to Raleigh?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Raleigh (average of $206). Flying from St. Louis to Raleigh in March is currently the most expensive (average of $293). 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 STL to RDU?

Find hourly flight availability from St. Louis to Raleigh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

One of the essential ways to save on airfare from St. Louis to Raleigh is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

What is the cheapest day to fly from St. Louis to Raleigh?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Raleigh. Price data was last updated on August 17, 2025.

Travelers seeking maximum savings on their St. Louis to Raleigh flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Raleigh

Get insights into the airlines that provide service to Raleigh. 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 Raleigh. Reviews last updated August 20, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from St. Louis to Raleigh by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,207 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Raleigh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from St. Louis to Raleigh?

    Booking a flight from Lambert-St Louis (STL) to Raleigh-Durham (RDU) is your only option if you wish to fly from St. Louis to Raleigh. On a typical day, there is 1 flight from Lambert-St Louis to Raleigh-Durham, all of which are around 1h 45m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Lambert-St Louis to Raleigh.

  • How popular is this St. Louis to Raleigh flight route?

    The Lambert-St Louis to Raleigh-Durham flight path was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from St. Louis to Raleigh?

    Departing from St. Louis to Raleigh will take you 5h 50m. There are 666 mi between St. Louis and Raleigh.

  • What are the cheapest airlines flying from St. Louis to Raleigh round-trip?

    Frontier, at $116, was found to be the cheapest airline from St. Louis to Raleigh.Alternate airlines to your destination round-trip include Southwest and Delta. Users have found that Frontier is 69% cheaper than the other options available to this destination.

  • What are the cheapest flights from St. Louis to Raleigh?

    On average you can expect to pay $318 for a flight from St. Louis to Raleigh. The cheapest flight overall is $108 while the most popular route, (Lambert-St Louis - Raleigh-Durham) is currently priced at $192.

  • Can I find deals for flights from St. Louis to Raleigh that include hotel bookings?

    Yes. In addition to deals on St. Louis to Raleigh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Raleigh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Raleigh.

  • Can I find deals for business class flights from St. Louis to Raleigh?

    Yes. Cheapflights offers flight deals from St. Louis to Raleigh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Raleigh?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Raleigh (average of $206). Flying from St. Louis to Raleigh in March is currently the most expensive (average of $293). 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.

See more FAQs

Traveling to a place near Raleigh?

Book flights to Raleigh if you plan to visit one of these locations
Dunn
Cary
Rocky Mount
Garner
Smithfield
Chapel Hill
Goldsboro
Morrisville
Apex
Henderson
Wilson
Danville
Wake Forest
Pinehurst
South Hill
Holly Springs
Oxford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Raleigh

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Top 4 airlines flying from St. Louis to Raleigh

Discover the top 4 airlines that operate flights from St. Louis to Raleigh. 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$116Average$218FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$223Average$368FlexibilityNo cancel feeOn-time63%
DeltaCheapest$229Average$384FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$374FlexibilityNo cancel feeOn-time71%

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