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Cheap flights from Richmond to St. Louis from $104

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 10/18. 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 (RIC-STL)

Cheap round-trip flights

Southwest Logo
5:20 pm - 11:25 pmRIC-STL
7h 05m1 stop
Southwest Logo
2:15 pm - 9:50 pmSTL-RIC
6h 35m1 stop
$210Southwest
Find Deal
Thu, Sep 4 - Tue, Sep 9
Spirit Airlines Logo
6:40 pm - 5:55 pmRIC-STL
24h 15m1 stop
Spirit Airlines Logo
10:54 am - 9:14 amSTL-RIC
21h 20m1 stop
$211Spirit Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
American Airlines Logo
6:03 am - 9:41 amRIC-STL
4h 38m1 stop
American Airlines Logo
6:10 am - 7:51 pmSTL-RIC
12h 41m1 stop
$215American Airlines
Find Deal
Thu, Sep 25 - Sat, Sep 27
Delta Logo
8:10 am - 12:31 pmRIC-STL
5h 21m1 stop
Delta Logo
10:20 am - 4:30 pmSTL-RIC
5h 10m1 stop
$227Delta
Find Deal
Wed, Sep 3 - Wed, Sep 10
American Airlines Logo
8:13 pm - 11:48 pmRIC-STL
4h 35m1 stop
American Airlines Logo
7:22 am - 2:15 pmSTL-RIC
5h 53m1 stop
$237American Airlines
Find Deal
Mon, Sep 8 - Thu, Sep 11
Delta Logo
10:04 am - 2:37 pmRIC-STL
5h 33m1 stop
Delta Logo
5:11 pm - 11:05 pmSTL-RIC
4h 54m1 stop
$257Delta
Find Deal
Thu, Aug 28 - Sun, Aug 31
Logo
7:42 pm - 11:01 amRIC-STL
16h 19m1 stop
Logo
7:52 pm - 4:21 pmSTL-RIC
19h 29m1 stop
$259
Find Deal
Wed, Nov 5 - Sat, Nov 8
Logo
6:33 pm - 6:36 pmRIC-STL
25h 03m3 stops
Logo
10:35 am - 5:21 pmSTL-RIC
5h 46m1 stop
$300
Find Deal
Thu, Sep 4 - Sun, Sep 7
United Airlines Logo
6:50 pm - 11:44 pmRIC-STL
5h 54m1 stop
United Airlines Logo
8:15 am - 1:55 pmSTL-RIC
4h 40m1 stop
$327United Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9
United Airlines Logo
6:50 pm - 11:44 pmRIC-STL
5h 54m1 stop
United Airlines Logo
5:30 pm - 1:55 pmSTL-RIC
19h 25m2 stops
$357United Airlines
Find Deal
Mon, Sep 8 - Mon, Sep 15

Southwest flights from Richmond to St. Louis

Our best Southwest deals on Richmond to St. Louis flight tickets
Southwest
Sep 4
RIC5:20 pmRichmond Byrd Intl
7h 05m
1 stop
STL11:25 pmLambert-St Louis
Sep 9
STL2:15 pmLambert-St Louis
6h 35m
1 stop
RIC9:50 pmRichmond Byrd Intl
$210
Find similar
Southwest
Sep 16
RIC7:30 amRichmond Byrd Intl
3h 45m
1 stop
STL10:15 amLambert-St Louis
Sep 18
STL5:30 amLambert-St Louis
5h 10m
1 stop
RIC11:40 amRichmond Byrd Intl
$224
Find similar
Southwest
Sep 4
RIC6:10 amRichmond Byrd Intl
7h 45m
2 stops
STL12:55 pmLambert-St Louis
Sep 9
STL8:40 amLambert-St Louis
4h 15m
1 stop
RIC1:55 pmRichmond Byrd Intl
$228
Find similar

American Airlines flights from Richmond to St. Louis

Our best American Airlines deals on Richmond to St. Louis flight tickets
American Airlines
Sep 25
RIC6:03 amRichmond Byrd Intl
4h 38m
1 stop
STL9:41 amLambert-St Louis
Sep 27
STL6:10 amLambert-St Louis
12h 41m
1 stop
RIC7:51 pmRichmond Byrd Intl
$215
Find similar
American Airlines
Sep 8
RIC8:13 pmRichmond Byrd Intl
4h 35m
1 stop
STL11:48 pmLambert-St Louis
Sep 11
STL7:22 amLambert-St Louis
5h 53m
1 stop
RIC2:15 pmRichmond Byrd Intl
$237
Find similar
American Airlines
Sep 25
RIC6:03 amRichmond Byrd Intl
4h 38m
1 stop
STL9:41 amLambert-St Louis
Sep 28
STL6:00 amLambert-St Louis
6h 10m
1 stop
RIC1:10 pmRichmond Byrd Intl
$252
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 August 5, 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 9/4

5:20 pm-11:25 pm

1 stop7h 05m

Lambert-St Louis

Tue 9/9

2:15 pm-9:50 pm

1 stop6h 35m

$210

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Fri 10/24

6:40 pm-5:55 pm

1 stop24h 15m

Lambert-St Louis

Sun 10/26

10:54 am-9:14 am

1 stop21h 20m

$211

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Thu 9/25

6:03 am-9:41 am

1 stop4h 38m

Lambert-St Louis

Sat 9/27

6:10 am-7:51 pm

1 stop12h 41m

$215

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Wed 9/3

8:10 am-12:31 pm

1 stop5h 21m

Lambert-St Louis

Wed 9/10

10:20 am-4:30 pm

1 stop5h 10m

$227

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Mon 9/8

8:13 pm-11:48 pm

1 stop4h 35m

Lambert-St Louis

Thu 9/11

7:22 am-2:15 pm

1 stop5h 53m

$237

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Thu 8/28

10:04 am-2:37 pm

1 stop5h 33m

Lambert-St Louis

Sun 8/31

5:11 pm-11:05 pm

1 stop4h 54m

$257

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Wed 11/5

7:42 pm-11:01 am

1 stop16h 19m

Lambert-St Louis

Sat 11/8

7:52 pm-4:21 pm

1 stop19h 29m

$259

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Thu 9/4

6:33 pm-6:36 pm

3 stops25h 03m

Lambert-St Louis

Sun 9/7

10:35 am-5:21 pm

1 stop5h 46m

$300

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Fri 9/5

6:50 pm-11:44 pm

1 stop5h 54m

Lambert-St Louis

Tue 9/9

8:15 am-1:55 pm

1 stop4h 40m

$327

RichmondSt. Louis

RIC - STL

RICSTL

Richmond Byrd Intl

Mon 9/8

6:50 pm-11:44 pm

1 stop5h 54m

Lambert-St Louis

Mon 9/15

5:30 pm-1:55 pm

2 stops19h 25m

$357

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 $382 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 August 2025, prices for Richmond to St. Louis flights are approximately 32% cheaper 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

Best Price Found

$104

Fastest flight time

3h 45m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Richmond in the past 72 hours is $104. The best round-trip flight deal from Richmond to St. Louis found on momondo in the last 72 hours is $210.
The fastest flight from Richmond to St. Louis takes 3h 45m
There are no direct flights from Richmond to St. Louis. Popular non-direct route for this connection is Richmond Byrd Intl Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • 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 3h 45m.

  • 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 $255Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
DeltaPriceFrom $281Free CancellationRating
8.0
7,985 reviews
Search Delta flights

  • Southwest Flights From Richmond to St. Louis

    Southwest flies from Richmond to St. Louis around 2 times per week, with 4,246 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
Fairview Heights
Hermann
Maryland Heights
Florissant
Fenton
O'Fallon
Collinsville
Alton
Wentzville
St. Peters
Farmington
Festus
Glencoe
Eureka
Edwardsville
Clayton
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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