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Cheap flights from Raleigh to St. Louis from $53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Raleigh to St. Louis departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Raleigh to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:00 am - 10:05 amRDU-STL
27h 05m1 stop
Frontier Logo
7:24 pm - 8:24 amSTL-RDU
12h 00m1 stop
$119Frontier
Find Deal
ter, nov 18 - qua, nov 19
Frontier Logo
8:00 am - 10:05 amRDU-STL
27h 05m1 stop
Frontier Logo
3:14 pm - 11:32 pmSTL-RDU
7h 18m1 stop
$121Frontier
Find Deal
ter, nov 18 - qui, nov 20
Frontier Logo
12:53 pm - 9:47 amRDU-STL
21h 54m1 stop
Frontier Logo
10:47 am - 12:12 amSTL-RDU
12h 25m1 stop
$152Frontier
Find Deal
qui, dez 4 - seg, dez 8
Frontier Logo
6:10 am - 10:12 amRDU-STL
5h 02m1 stop
Frontier Logo
4:56 pm - 11:05 pmSTL-RDU
5h 09m1 stop
$176Frontier
Find Deal
dom, nov 9 - sex, nov 14
Frontier Logo
5:21 pm - 9:07 amRDU-STL
16h 46m1 stop
Frontier Logo
2:12 pm - 8:43 amSTL-RDU
17h 31m1 stop
$178Frontier
Find Deal
seg, nov 10 - qui, nov 13
Frontier Logo
10:45 am - 3:38 pmRDU-STL
5h 53m1 stop
Frontier Logo
11:17 am - 10:48 pmSTL-RDU
10h 31m1 stop
$183Frontier
Find Deal
sáb, nov 15 - dom, nov 16
Frontier Logo
6:00 am - 11:07 amRDU-STL
6h 07m1 stop
Frontier Logo
10:42 am - 12:13 amSTL-RDU
12h 31m1 stop
$186Frontier
Find Deal
qui, dez 11 - qui, dez 18
Multiple Airlines Logo
12:53 pm - 9:47 amRDU-STL
21h 54m1 stop
Multiple Airlines Logo
7:43 pm - 9:47 amSTL-RDU
13h 04m2 stops
$192Multiple Airlines
Find Deal
qui, dez 4 - seg, dez 8
American Airlines Logo
6:37 pm - 11:55 pmRDU-STL
6h 18m1 stop
American Airlines Logo
2:06 pm - 11:59 pmSTL-RDU
8h 53m1 stop
$248American Airlines
Find Deal
ter, dez 30 - qua, dez 31
American Airlines Logo
6:00 am - 9:32 amRDU-STL
4h 32m1 stop
American Airlines Logo
6:00 am - 12:21 pmSTL-RDU
5h 21m1 stop
$257American Airlines
Find Deal
ter, dez 16 - ter, jan 6

Frontier flights from Raleigh to St. Louis

Our best Frontier deals on Raleigh to St. Louis flight tickets
Frontier
Nov 18
RDU8:00 amRaleigh-Durham
27h 05m
1 stop
STL10:05 amLambert-St Louis
Nov 19
STL7:24 pmLambert-St Louis
12h 00m
1 stop
RDU8:24 amRaleigh-Durham
$119
Find similar
Frontier
Nov 18
RDU8:00 amRaleigh-Durham
27h 05m
1 stop
STL10:05 amLambert-St Louis
Nov 20
STL3:14 pmLambert-St Louis
7h 18m
1 stop
RDU11:32 pmRaleigh-Durham
$121
Find similar
Frontier
Dec 4
RDU12:53 pmRaleigh-Durham
21h 54m
1 stop
STL9:47 amLambert-St Louis
Dec 8
STL10:47 amLambert-St Louis
12h 25m
1 stop
RDU12:12 amRaleigh-Durham
$152
Find similar

American Airlines flights from Raleigh to St. Louis

Our best American Airlines deals on Raleigh to St. Louis flight tickets
American Airlines
Dec 30
RDU6:37 pmRaleigh-Durham
6h 18m
1 stop
STL11:55 pmLambert-St Louis
Dec 31
STL2:06 pmLambert-St Louis
8h 53m
1 stop
RDU11:59 pmRaleigh-Durham
$248
Find similar
American Airlines
Dec 16
RDU6:00 amRaleigh-Durham
4h 32m
1 stop
STL9:32 amLambert-St Louis
Jan 6
STL6:00 amLambert-St Louis
5h 21m
1 stop
RDU12:21 pmRaleigh-Durham
$257
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated outubro 28, 2025.
Use the filters below to find and compare flights from Raleigh to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

ter 11/18

8:00 am-10:05 am

1 stop27h 05m

Lambert-St Louis

qua 11/19

7:24 pm-8:24 am

1 stop12h 00m

$119

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

ter 11/18

8:00 am-10:05 am

1 stop27h 05m

Lambert-St Louis

qui 11/20

3:14 pm-11:32 pm

1 stop7h 18m

$121

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

qui 12/4

12:53 pm-9:47 am

1 stop21h 54m

Lambert-St Louis

seg 12/8

10:47 am-12:12 am

1 stop12h 25m

$152

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

dom 11/9

6:10 am-10:12 am

1 stop5h 02m

Lambert-St Louis

sex 11/14

4:56 pm-11:05 pm

1 stop5h 09m

$176

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

seg 11/10

5:21 pm-9:07 am

1 stop16h 46m

Lambert-St Louis

qui 11/13

2:12 pm-8:43 am

1 stop17h 31m

$178

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

sáb 11/15

10:45 am-3:38 pm

1 stop5h 53m

Lambert-St Louis

dom 11/16

11:17 am-10:48 pm

1 stop10h 31m

$183

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

qui 12/11

6:00 am-11:07 am

1 stop6h 07m

Lambert-St Louis

qui 12/18

10:42 am-12:13 am

1 stop12h 31m

$186

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

qui 12/4

12:53 pm-9:47 am

1 stop21h 54m

Lambert-St Louis

seg 12/8

7:43 pm-9:47 am

2 stops13h 04m

$192

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

ter 12/30

6:37 pm-11:55 pm

1 stop6h 18m

Lambert-St Louis

qua 12/31

2:06 pm-11:59 pm

1 stop8h 53m

$248

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

ter 12/16

6:00 am-9:32 am

1 stop4h 32m

Lambert-St Louis

ter 1/6

6:00 am-12:21 pm

1 stop5h 21m

$257

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Raleigh to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Raleigh and St. Louis?

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

In general, January is the cheapest month to fly from Raleigh to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $362. The month of December is another great option to travel to St. Louis, with average flight prices from Raleigh averaging around $363.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $353. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $437. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Raleigh in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $347 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $437 per ticket.

What is the cheapest Raleigh-Durham to Lambert-St Louis flight route?

Fly from Raleigh-Durham to Lambert-St Louis for the best Raleigh-Durham - Lambert-St Louis flight prices

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

You are more likely to see cheaper flights to St. Louis from Raleigh when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $387 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Raleigh for as low as $287 on momondo.

What cabin class options are available on Raleigh-Durham to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Raleigh-Durham to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Raleigh to St. Louis flights?

You could potentially save up to 34% on your flight if you consider stops on a Raleigh to St. Louis flight.

How have Raleigh to St. Louis flight prices changed over time?

As of October 2025, prices for Raleigh to St. Louis flights are approximately 62% more expensive when compared to flights at the same time last year.

When to book flights from Raleigh to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Raleigh to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Raleigh to St. Louis (RDU to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Raleigh to St. Louis

Best Price Found

$240

Fastest flight time

2h 10m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Raleigh in the past 72 hours is $240. The best round-trip flight deal from Raleigh to St. Louis found on momondo in the last 72 hours is $366.
The fastest flight from Raleigh to St. Louis takes 2h 10m
Direct flights go from Raleigh to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • How far is Raleigh-Durham to Lambert-St Louis by plane?

    Lambert-St Louis is 665.0 mi away from Raleigh-Durham. 4h 32m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Raleigh-Durham Airport to Lambert-St Louis Airport?

    Prices for flights from Raleigh-Durham Airport to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Raleigh-Durham Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Raleigh-Durham Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Raleigh-Durham Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Raleigh to St. Louis?

  • What is the most popular airline from Raleigh to St. Louis?

Best airlines flying from Raleigh to St. Louis

Compare and see reviews for airlines that fly from Raleigh to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,124 reviews
Search Frontier flights
DeltaPriceFrom $226Free CancellationRating
7.9
7,994 reviews
Search Delta flights
SouthwestPriceFrom $239Free CancellationRating
8.0
4,240 reviews
Search Southwest flights
American AirlinesPriceFrom $255Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights

  • Southwest Flights From Raleigh to St. Louis

    Across 10 Southwest flights from Raleigh to St. Louis this week, the average price was $397, with the best Southwest deals starting from $239 round-trip. 4,240 users have rated Southwest on momondo, with an average score of 8.0/10.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Raleigh to St. Louis?

It is quick and easy to find Raleigh to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights from Raleigh to St. Louis with flexible booking policies on momondo?

Flights from Raleigh to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Raleigh to St. Louis?

momondo helps you find the best flight between Raleigh and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Raleigh to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Raleigh to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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