STL - RDU

$63 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 5/13. 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
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$127
Typical prices: $384-$338
Frontier
sáb. 5/9mar. 5/12
STL - RDU • 1 stop
Cheapest non-stop
$297
Typical prices: $419-$331
Southwest
mié. 5/13mié. 5/13
STL - RDU • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Avoid peak hours at STL for smoother security.
Use RDU Taxi for reliable curbside pickup.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with Southwest. Average duration is 1h 50m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $211 (round-trip)
Shortest trip • 3h 50m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

sáb., may. 9 - mar., may. 12
Frontier Logo
5:27 pm - 12:29 am
STL
-
RDU
6h 02m
1 stop
Frontier Logo
12:59 pm - 5:33 pm
RDU
-
STL
5h 34m
1 stop
$127Frontier
sáb., may. 9 - mar., may. 12
Frontier Logo
5:27 pm - 12:29 am
STL
-
RDU
6h 02m
1 stop
Frontier Logo
12:59 pm - 5:33 pm
RDU
-
STL
5h 34m
1 stop
$129Frontier
jue., may. 14 - jue., may. 21
Frontier Logo
6:55 pm - 8:04 am
STL
-
RDU
12h 09m
1 stop
Frontier Logo
6:15 am - 4:15 pm
RDU
-
STL
11h 00m
1 stop
$133Frontier
jue., may. 7 - dom., may. 10
Frontier Logo
6:55 pm - 8:04 am
STL
-
RDU
12h 09m
1 stop
Frontier Logo
6:15 am - 8:55 am
RDU
-
STL
27h 40m
1 stop
$136Frontier
mar., may. 12 - sáb., may. 16
Frontier Logo
6:33 pm - 12:33 am
STL
-
RDU
5h 00m
1 stop
Frontier Logo
7:52 pm - 12:21 am
RDU
-
STL
5h 29m
1 stop
$140Frontier
mié., jun. 10 - lun., jun. 15
Frontier Logo
5:13 pm - 12:21 am
STL
-
RDU
6h 08m
1 stop
Frontier Logo
10:36 pm - 8:52 am
RDU
-
STL
35h 16m
2 stops
$153Frontier
dom., may. 3 - mar., may. 12
Frontier Logo
11:28 am - 10:55 pm
STL
-
RDU
10h 27m
1 stop
Frontier Logo
12:59 pm - 5:33 pm
RDU
-
STL
5h 34m
1 stop
$160Frontier
vie., may. 22 - mar., may. 26
Frontier Logo
8:08 pm - 11:31 am
STL
-
RDU
14h 23m
1 stop
Frontier Logo
12:54 pm - 5:33 pm
RDU
-
STL
5h 39m
1 stop
$165Frontier
vie., may. 8 - lun., may. 11
Frontier Logo
5:27 pm - 12:24 am
STL
-
RDU
5h 57m
1 stop
Frontier Logo
3:12 pm - 5:33 pm
RDU
-
STL
27h 21m
2 stops
$167Frontier
sáb., may. 9 - mar., may. 12
Frontier Logo
8:08 pm - 12:02 pm
STL
-
RDU
14h 54m
2 stops
Frontier Logo
12:59 pm - 5:33 pm
RDU
-
STL
5h 34m
1 stop
$169Frontier
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.

How much is a round-trip flight from St. Louis to Raleigh?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Raleigh departing in May.

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 Saturdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Raleigh, Wednesday is the cheapest day to fly and Saturday 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 November, where the average cost of round-trip tickets is $580 and $457 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 $350 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 3 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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on RDU

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.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

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.

Good to know

Low seasonNovember
Cheapest flight$63
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly with an average 44% increase in price.
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 $63 for a one-way ticket and $127 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?

    American Airlines, and JetBlue offer 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 737-800 Passenger/BBJ2 (winglets) 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 $419 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 $205 or less one-way and $350 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 4329 reviews
8.1Boarding
7.5Entertainment
8.6Crew
7.0Food
8.0Comfort
Airline reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

4.0 OkayDavid, Apr 2026
COS - DAL
Read more Southwest reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

The seat was not comfortable. 1D. My back was sore all night and the next day.

Great flight. I didn't get a drink because I was asleep whole on the flight.

Great flight from Seattle to Phoenix and to Chicago-Midway from Phoenix

The new boarding process was easy and straightforward. Very pleasant.

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

It was as expected and I was grateful for the wheel chair help and ease of use.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Landed without a gate ready. Plane is extremely old and dirty.

All the amenities was wonderful, if they could keep their prices that low. I'd fly with them all the time.

Very old plane with no inflight entertainment. I purchased the internet pass and it was nearly unusable.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

Short trip, no food and therefore no expectation for much interaction with staff who were pleasant and professional. My critique is on comfort of the seats. Exit rows and comfort seats do not provide enough personal space for 3 side-by-side seats, especially when in the middle row. Some passengers are not considerate of the middle seat and there should be signs that state something to the effect of: "please consider giving middle seats use of the armrests."

My flight yesterday evening was delayed 3.5 hours with no water or food service. Poor experience

Transparency from pilots, quick boarding and exiting the plane, staff greeted to each and everyone,

Didn't like sitting on the waiting pad for 30 minutes right after departing the gate. If you're going to do that, just don't board so people can still get up and walk around in the terminal. My luggage was damaged by the baggage handlers.

No gate in Rome. Had stairs. Got separated from my wife in a wheel chair. Customs was a zoo. If AA doesnt have landing rights, it should be advertised.

The captain announced to the cabin there would be a delay because they observed a "cut" on a tire during precheck that needed to be cleared by maintenance. We were delayed during this inspection and allowed to proceed after maintenance "measured the cut and decided it was acceptable". My complaint is not about the delay or due diligence. I wish the captain had been more generic when making his announcement. I was a nervous wreck all the way to Charlotte worried that we would have a blowout when landing!

Flight was delayed and they gave up my seat on my connection, even when I could still make the flight

Flight was delayed. No urgency by American Airlines team to assist those with connecting flights. It was basically you are on your own to run through the terminals to try and make your connection. Thanks, Mary

I have never been assaulted they way I was today in Charlotte - shame on American

One of our group members was struggling to walk. In Charlotte we asked for a wheelchair and she was accompanied by Desmond. I was impressed by his patience and attention. In Boston she received the same service. I didn’t get the name of the helper but she went above and beyond in assisting us. A great AA service

Flight was on-time, boarding was flawless and the crew was friendly.

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

I appreciate that I finally got the seat I paid extra for this time. Thank you

It would have been nice if American tried to care.

They didn’t offer a water, even after I asked

Zero issues with this flight. Crew was outstanding and flight was super. Plane was clean and fine. The seats need more padding and water should be provided without cost. I recognize it's Frontier but there are some things that should still be part of the flight. But still very satisfied with the experience and quality.

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

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

Information on your arrival and departure airports