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Cheap flights from Richmond to St. Louis from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Richmond to St. Louis departing on 10/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Richmond to St. Louis

Cheap round-trip flights

Multiple Airlines Logo
5:45 am - 10:37 amRIC-STL
29h 52m2 stops
Multiple Airlines Logo
10:57 am - 8:35 pmSTL-RIC
8h 38m1 stop
$218Multiple Airlines
Find Deal
Thu, Oct 16 - Thu, Oct 23
Multiple Airlines Logo
5:45 am - 10:02 amRIC-STL
29h 17m1 stop
Multiple Airlines Logo
6:42 pm - 9:04 amSTL-RIC
13h 22m1 stop
$219Multiple Airlines
Find Deal
Wed, Oct 22 - Fri, Oct 24
Multiple Airlines Logo
5:45 am - 10:16 amRIC-STL
29h 31m2 stops
Multiple Airlines Logo
7:15 pm - 7:55 pmSTL-RIC
23h 40m1 stop
$245Multiple Airlines
Find Deal
Thu, Oct 23 - Sat, Oct 25
Delta Logo
6:26 am - 10:26 amRIC-STL
5h 00m1 stop
Delta Logo
9:10 am - 2:17 pmSTL-RIC
4h 07m1 stop
$277Delta
Find Deal
Tue, Oct 14 - Wed, Oct 15
Delta Logo
6:26 am - 10:26 amRIC-STL
5h 00m1 stop
Delta Logo
6:14 pm - 11:06 pmSTL-RIC
3h 52m1 stop
$287Delta
Find Deal
Thu, Oct 23 - Tue, Nov 4
Southwest Logo
5:30 pm - 10:20 pmRIC-STL
5h 50m1 stop
Southwest Logo
5:05 pm - 11:40 pmSTL-RIC
5h 35m1 stop
$296Southwest
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Tue, Nov 4 - Fri, Nov 7
Southwest Logo
6:10 am - 1:50 pmRIC-STL
8h 40m2 stops
Southwest Logo
5:05 pm - 11:40 pmSTL-RIC
5h 35m1 stop
$301Southwest
Find Deal
Tue, Nov 4 - Fri, Nov 7
Spirit Airlines Logo
9:37 pm - 6:10 pmRIC-STL
21h 33m2 stops
Spirit Airlines Logo
10:57 am - 8:35 pmSTL-RIC
8h 38m1 stop
$323Spirit Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19
American Airlines Logo
2:55 pm - 7:30 pmRIC-STL
5h 35m1 stop
American Airlines Logo
7:23 am - 2:10 pmSTL-RIC
5h 47m1 stop
$381American Airlines
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Fri, Oct 17 - Sun, Oct 19
American Airlines Logo
5:03 am - 8:16 amRIC-STL
4h 13m1 stop
American Airlines Logo
4:25 pm - 9:30 pmSTL-RIC
4h 05m1 stop
$402American Airlines
Find Deal
Sun, Oct 19 - Mon, Oct 20

United Airlines flights from Richmond to St. Louis

Our best United Airlines deals on Richmond to St. Louis flight tickets
United Airlines
Oct 9
RIC6:44 amRichmond Byrd Intl
5h 05m
1 stop
STL10:49 amLambert-St Louis
Oct 14
STL8:00 amLambert-St Louis
4h 51m
1 stop
RIC1:51 pmRichmond Byrd Intl
$357
Find similar
United Airlines
Oct 23
RIC6:44 amRichmond Byrd Intl
5h 05m
1 stop
STL10:49 amLambert-St Louis
Nov 4
STL10:00 amLambert-St Louis
11h 30m
2 stops
RIC10:30 pmRichmond Byrd Intl
$435
Find similar
United Airlines
Nov 5
RIC6:30 amRichmond Byrd Intl
12h 09m
2 stops
STL5:39 pmLambert-St Louis
Nov 8
STL8:25 amLambert-St Louis
4h 32m
1 stop
RIC1:57 pmRichmond Byrd Intl
$456
Find similar

Delta flights from Richmond to St. Louis

Our best Delta deals on Richmond to St. Louis flight tickets
Delta
Oct 14
RIC6:26 amRichmond Byrd Intl
5h 00m
1 stop
STL10:26 amLambert-St Louis
Oct 15
STL9:10 amLambert-St Louis
4h 07m
1 stop
RIC2:17 pmRichmond Byrd Intl
$277
Find similar
Delta
Oct 23
RIC6:26 amRichmond Byrd Intl
5h 00m
1 stop
STL10:26 amLambert-St Louis
Nov 4
STL6:14 pmLambert-St Louis
3h 52m
1 stop
RIC11:06 pmRichmond Byrd Intl
$287
Find similar
Delta
Mar 3
RIC5:00 pmRichmond Byrd Intl
4h 39m
1 stop
STL8:39 pmLambert-St Louis
Mar 4
STL6:00 amLambert-St Louis
4h 38m
1 stop
RIC11:38 amRichmond Byrd Intl
$297
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Richmond 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 September 19, 2025.
Use the filters below to find and compare flights from Richmond to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Thu 10/16

5:45 am-10:37 am

2 stops29h 52m

Lambert-St Louis

Thu 10/23

10:57 am-8:35 pm

1 stop8h 38m

$218

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Wed 10/22

5:45 am-10:02 am

1 stop29h 17m

Lambert-St Louis

Fri 10/24

6:42 pm-9:04 am

1 stop13h 22m

$219

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Thu 10/23

5:45 am-10:16 am

2 stops29h 31m

Lambert-St Louis

Sat 10/25

7:15 pm-7:55 pm

1 stop23h 40m

$245

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Tue 10/14

6:26 am-10:26 am

1 stop5h 00m

Lambert-St Louis

Wed 10/15

9:10 am-2:17 pm

1 stop4h 07m

$277

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Thu 10/23

6:26 am-10:26 am

1 stop5h 00m

Lambert-St Louis

Tue 11/4

6:14 pm-11:06 pm

1 stop3h 52m

$287

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Tue 11/4

5:30 pm-10:20 pm

1 stop5h 50m

Lambert-St Louis

Fri 11/7

5:05 pm-11:40 pm

1 stop5h 35m

$296

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Tue 11/4

6:10 am-1:50 pm

2 stops8h 40m

Lambert-St Louis

Fri 11/7

5:05 pm-11:40 pm

1 stop5h 35m

$301

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Fri 10/17

9:37 pm-6:10 pm

2 stops21h 33m

Lambert-St Louis

Sun 10/19

10:57 am-8:35 pm

1 stop8h 38m

$323

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Fri 10/17

2:55 pm-7:30 pm

1 stop5h 35m

Lambert-St Louis

Sun 10/19

7:23 am-2:10 pm

1 stop5h 47m

$381

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Sun 10/19

5:03 am-8:16 am

1 stop4h 13m

Lambert-St Louis

Mon 10/20

4:25 pm-9:30 pm

1 stop4h 05m

$402

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Richmond 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 cheapest month to fly to St. Louis?

In general, April is the cheapest month to fly from Richmond to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $334. The month of February is another great option to travel to St. Louis, with average flight prices from Richmond averaging around $346.

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 Saturday when prices can be found for as low as $348. 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 Monday because tickets tend to average around $454. 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 Richmond in the evening is the least expensive time of day to depart. momondo users have found prices as low as $346 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $386 per ticket.

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

You are more likely to see cheaper flights to St. Louis from Richmond when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $395 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Richmond for as low as $300 on momondo.

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

As of September 2025, prices for Richmond to St. Louis flights are approximately 34% more expensive when compared to flights at the same time last year.

When to book flights from Richmond to St. Louis

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

Cheap Richmond to St. Louis (RIC to STL) flight deals and tips

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

Direct flights

None
There are no direct flights from Richmond to St. Louis. There are no popular flight routes from Richmond to St. Louis.
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  • How far is Richmond Byrd Intl to Lambert-St Louis by plane?

    The straight-line distance from Richmond Byrd Intl to Lambert-St Louis is 696.9 mi. In terms of flight time, this usually takes a little over 4h 01m.

  • When did momondo last update prices for flights from Richmond Byrd Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Richmond Byrd Intl Airport to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Richmond Byrd Intl Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Richmond Byrd Intl 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 Richmond Byrd Intl Airport to Lambert-St Louis Airport.

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

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Richmond to St. Louis

Compare and see reviews for airlines that fly from Richmond to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $256Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
7,964 reviews
Search Delta flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

  • Southwest Flights From Richmond to St. Louis

    Southwest flies from Richmond to St. Louis around 2 times per week, with 4,242 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Richmond to St. Louis in the last 72 hours was $277 (round-trip), much lower than the average airfare cost of $366 for Southwest flights on this route.

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
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

Finding the right flight to St. Louis from Richmond is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Richmond with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Richmond.

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

If you are not ready to book a flight from Richmond to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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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