STL - RDU

$55 Find Cheap Flights from St. Louis to Raleigh

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Raleigh departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Raleigh

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Raleigh, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Raleigh, as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$124
Overall average: $374
Frontier
Thu 12/4Fri 12/5
STL - RDU • 1 stop
Cheapest non-stop
$320
Typical prices: $356-$492
Southwest
Thu 1/29Tue 2/3
STL - RDU • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
Avoid peak hours at STL for smoother security.
Use RDU Taxi for reliable curbside pickup.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $124 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 18% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Raleigh!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from St. Louis to Raleigh (STL-RDU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Raleigh that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Raleigh

Thu, Dec 4 - Fri, Dec 5
Frontier Logo
12:04 pm - 12:12 amSTL-RDU
11h 08m1 stop
Frontier Logo
8:14 pm - 10:33 pmRDU-STL
27h 19m1 stop
$124Frontier
Find Deal
Thu, Dec 11 - Mon, Dec 15
Frontier Logo
12:04 pm - 12:12 amSTL-RDU
11h 08m1 stop
Frontier Logo
6:10 am - 9:52 amRDU-STL
4h 42m1 stop
$128Frontier
Find Deal
Thu, Dec 4 - Fri, Dec 5
Frontier Logo
12:04 pm - 12:12 amSTL-RDU
11h 08m1 stop
Frontier Logo
6:00 am - 9:47 amRDU-STL
4h 47m1 stop
$134Frontier
Find Deal
Sun, Nov 23 - Thu, Nov 27
Frontier Logo
4:13 pm - 8:24 amSTL-RDU
15h 11m1 stop
Frontier Logo
5:20 pm - 10:02 amRDU-STL
17h 42m1 stop
$144Frontier
Find Deal
Fri, Dec 12 - Sun, Dec 14
Frontier Logo
10:42 am - 12:12 amSTL-RDU
12h 30m1 stop
Frontier Logo
1:03 pm - 9:52 amRDU-STL
21h 49m1 stop
$152Frontier
Find Deal
Fri, Dec 12 - Mon, Dec 15
Multiple Airlines Logo
10:42 am - 12:12 amSTL-RDU
12h 30m1 stop
Multiple Airlines Logo
2:35 pm - 10:33 pmRDU-STL
8h 58m1 stop
$191Multiple Airlines
Find Deal
Sat, Dec 13 - Mon, Dec 15
Multiple Airlines Logo
7:43 pm - 5:31 pmSTL-RDU
20h 48m1 stop
Multiple Airlines Logo
2:35 pm - 10:33 pmRDU-STL
8h 58m1 stop
$208Multiple Airlines
Find Deal
Wed, Dec 10 - Thu, Dec 11
Delta Logo
10:45 am - 5:40 pmSTL-RDU
5h 55m1 stop
Delta Logo
7:15 am - 10:45 amRDU-STL
4h 30m1 stop
$254Delta
Find Deal
Sat, Dec 13 - Sat, Dec 13
Delta Logo
8:00 am - 1:06 pmSTL-RDU
4h 06m1 stop
Delta Logo
6:00 pm - 9:57 pmRDU-STL
4h 57m1 stop
$281Delta
Find Deal
Thu, Jan 29 - Tue, Feb 3
Southwest Logo
8:15 am - 11:05 amSTL-RDU
1h 50mnonstop
Southwest Logo
6:50 am - 10:15 amRDU-STL
4h 25m1 stop
$284Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Raleigh flights

Get data-powered insights and trends into flights from St. Louis to Raleigh to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Raleigh?

The average price of all round-trip flights from St. Louis to Raleigh clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Raleigh, look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Raleigh, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Raleigh, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Raleigh is October, where tickets cost $330 (return) on average. On the other hand, the most expensive months are August and March, where the average cost of round-trip tickets is $581 and $429 respectively.

Can I save money by flying with a layover from St. Louis to Raleigh?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $353 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Raleigh, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Raleigh, you should book around 4 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

Expert advice for your flight from St. Louis to Raleigh

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
STL

Avoid peak hours at STL for smoother security and check-in. Early mornings and afternoons can be particularly crowded.

Read more about STLby Yulia Denisyuk
RDU

Use RDU Taxi for reliable curbside pickup at both terminals. Pre-book shared transport for larger groups.

Read more about RDUby Jessica Macdonald
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on RDU

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

Good to know

Low seasonJuly
Cheapest flight$55
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from St. Louis to Raleigh

When to book flights from St. Louis to Raleigh

Are your dates flexible? Find out the best times to travel from St. Louis to Raleigh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Raleigh

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

    In the last 3 days, the lowest price for a flight from St. Louis to Raleigh was $55 for a one-way ticket and $124 for a round-trip.

  • Do I need a passport to fly between St. Louis and Raleigh?

    A passport is not required to fly from St. Louis to Raleigh.

  • Which airports will I be using when flying from St. Louis to Raleigh?

    On your way to Raleigh, you’ll fly out from Lambert-St Louis. You’ll be landing at Raleigh-Durham.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Raleigh?

    Only American Airlines offers inflight Wi-Fi service on the St. Louis to Raleigh flight route.

  • Which aircraft models fly most regularly from St. Louis to Raleigh?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to Raleigh flight route.

  • Which airline alliances offer flights from St. Louis to Raleigh?

    SkyTeam, and oneworld are the airline alliances operating flights between St. Louis and Raleigh, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from St. Louis to Raleigh?

    There are nonstop flights from St. Louis to Raleigh on a daily basis.

  • Which is the best airline for flights from St. Louis to Raleigh, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Raleigh are Southwest and Delta. With an average price for the route of $382 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $384 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from St. Louis to Raleigh?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Raleigh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Raleigh?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Raleigh from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Raleigh?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Raleigh with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and RDU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Raleigh?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Raleigh from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Raleigh

  • Looking for a cheap flight? 25% of our users found flights on this route for $168 or less one-way and $353 or less round-trip.

Prefer to fly direct from St. Louis to Raleigh?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Raleigh-Durham.
Find which airlines fly direct from Lambert-St Louis Airport to Raleigh-Durham Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Raleigh-Durham

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Raleigh-Durham to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 4 airlines serving from St. Louis to Raleigh

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Raleigh. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Raleigh? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4238 reviews
8.6Crew
7.5Entertainment
7.0Food
8.0Comfort
8.1Boarding
Airline reviews

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

8.0 ExcellentTODD, Nov 2025DAL - CMH
Read more Southwest reviews

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Did not get any refreshments. Crew was very nice but limited. Small seats

The flight was flawless and we even arrived between 20 and 25 minutes early!

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

We had 3 flights. 1 & 2 were on the same plane but we had to de-board just to re-board 30 mins later. That may have been due to a crew change though. Our 3rd flight had a couple “maintenance” issues that held us up. They were quickly resolved but it took forever for someone to bring the paperwork needed so we could leave. Apparently there was a computer glitch so a driver had to bring a physical copy. It delayed us about 1 1/2 hrs. The flights themselves were smooth & no problems. For boarding, I don’t know why they don’t start with the back of the plane & move forward. It would eliminate the back up from people trying to find their seats & put their bags in the overhead bins. Unless you’re on an overseas flight, there is no food, you get a beverage & either a small bag of pretzels or a biscuit cookie. Take your own food or snacks of you want something more.

The actual trip was fine, however, the changes made to our flights and the layovers were had to endure were awful.

Most things were ok but the main problem was the cabin staff; they were very abrupt and not very friendly. They were busy and often rushed, snatching drinks off people before finished and bossing them about.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Everything you need to know for your flight from St. Louis to Raleigh

Information on your arrival and departure airports