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$68+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — RDU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Raleigh-Durham are usually found in October or September, 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 September 15, 2025.

Round-trip from

$129
(Kiwi.com)

One-way from

$68
(United Airlines)

Popular in

August

Cheapest in

October

Average price

$344

Good round-trip deal

$370 or less
From Lambert-St Louis to Raleigh-Durham
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One-way flight from Lambert-St Louis to Raleigh-Durham
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip 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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/24:00 pmSTL - RDU
1 stop5h 50mFrontier
Mon 10/66:22 amRDU - STL
1 stop9h 42mFrontier
Deal found 9/13$129
This Frontier deal was found by Cheapflights users on 9/14. 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.
Thu 9/254:00 pmSTL - RDU
1 stop5h 50mFrontier
Mon 9/296:22 amRDU - STL
1 stop9h 42mFrontier
Deal found 9/14$144
This Frontier deal was found by Cheapflights users on 9/14. 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.
Thu 10/231:41 pmSTL - RDU
1 stop18h 47mFrontier
Mon 10/275:39 pmRDU - STL
1 stop16h 28mFrontier
Deal found 9/14$145
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:00 pmSTL - RDU
1 stop5h 58mFrontier
Fri 10/312:21 pmRDU - STL
1 stop9h 16mFrontier
Deal found 9/14$153
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/148:30 amSTL - RDU
1 stop3h 39mAmerican Airlines
Tue 10/216:23 pmRDU - STL
1 stop6h 31mAmerican Airlines
Deal found 9/15$159
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 11/1810:15 amSTL - RDU
1 stop3h 34mAmerican Airlines
Fri 11/286:59 pmRDU - STL
1 stop5h 05mAmerican Airlines
Deal found 9/14$160
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 10/247:52 pmSTL - RDU
1 stop20h 12mFrontier
Mon 10/275:39 pmRDU - STL
1 stop16h 28mFrontier
Deal found 9/13$176
This Priceline deal was found by Cheapflights users on 9/15. 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.
Fri 10/1011:32 amSTL - RDU
1 stop5h 48mFrontier
Mon 10/1312:43 pmRDU - STL
1 stop8h 38mFrontier
Deal found 9/15$181
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Mon 9/224:00 pmSTL - RDU
1 stop5h 58mFrontier
Fri 9/266:42 pmRDU - STL
2 stops40h 12mFrontier
Deal found 9/13$182
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:32 pmSTL - RDU
1 stop11h 21mFrontier
Mon 10/610:48 amRDU - STL
2 stops10h 49mFrontier
Deal found 9/13$186
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:52 pmSTL - RDU
2 stops18h 45mFrontier
Sat 10/255:10 pmRDU - STL
1 stop17h 12mFrontier
Deal found 9/14$190

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 September 15, 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

Tue 10/21

10:16 am-4:06 pm

1 stop4h 50m

Raleigh-Durham

Sat 10/25

5:55 pm-11:18 pm

1 stop6h 23m

$159

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Tue 11/18

10:15 am-2:49 pm

1 stop3h 34m

Raleigh-Durham

Fri 11/28

6:59 pm-11:04 pm

1 stop5h 05m

$160

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 10/23

11:32 am-6:20 pm

1 stop5h 48m

Raleigh-Durham

Sun 10/26

6:15 am-10:37 am

1 stop5h 22m

$193

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Fri 10/17

5:15 pm-10:59 pm

1 stop4h 44m

Raleigh-Durham

Sun 10/19

5:15 am-8:05 am

1 stop3h 50m

$197

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sun 10/5

10:39 am-10:03 am

1 stop22h 24m

Raleigh-Durham

Wed 10/8

12:30 pm-9:22 am

2 stops21h 52m

$201

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Tue 10/21

9:20 am-5:06 pm

1 stop6h 46m

Raleigh-Durham

Sat 10/25

4:37 pm-11:47 pm

1 stop8h 10m

$205

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Fri 10/10

11:32 am-10:59 pm

1 stop10h 27m

Raleigh-Durham

Tue 10/14

12:30 pm-9:22 am

2 stops45h 52m

$215

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Fri 10/31

8:40 pm-8:24 am

2 stops10h 44m

Raleigh-Durham

Mon 11/3

5:21 pm-9:07 am

1 stop16h 46m

$220

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Tue 10/14

3:23 pm-9:43 pm

1 stop5h 20m

Raleigh-Durham

Sat 10/18

6:00 am-12:28 pm

2 stops7h 28m

$242

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sat 12/6

3:13 pm-9:46 pm

1 stop5h 33m

$68

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 16 results
1
2

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 September 12, 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 September 15, 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 13% 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 September 14, 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. Saturday 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 September 15, 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
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 4h 44m. There are 666 mi between St. Louis and Raleigh. This flight may include one or multiple stops.

  • 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 American Airlines. Users have found that Frontier is 70% 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 $577 for a flight from St. Louis to Raleigh. The cheapest flight overall is $308 while the most popular route, (Lambert-St Louis - Raleigh-Durham) is currently priced at $135.

  • 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
Rocky Mount
Smithfield
Cary
Garner
Chapel Hill
Goldsboro
Morrisville
Apex
Henderson
Wilson
Danville
Pinehurst
Wake Forest
South Hill
Holly Springs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Raleigh

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$116Average$200FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$222Average$373FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$246Average$379FlexibilityNo cancel feeOn-time71%
DeltaCheapest$260Average$384FlexibilityNo cancel feeOn-timeN/A

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