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Cheap flights from St. Louis to District of Columbia from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to District of Columbia departing on 1/29. 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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Find the cheapest flights from St. Louis to District of Columbia

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to District of Columbia that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to District of Columbia.

Cheap last minute flights

Planning a quick getaway from St. Louis to District of Columbia? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to District of Columbia, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to District of Columbia

Find recent round-trip train or bus tickets from St. Louis to District of Columbia.

All round-trip flight deals to District of Columbia

The cheapest plane tickets to District of Columbia found on KAYAK recently.
6:46 pm - 12:01 pmSTL-DCA
16h 15m1 stop
1:01 pm - 9:06 amDCA-STL
21h 05m1 stop
$136Frontier
Find Deal
sáb., ene. 11 - mar., ene. 14
6:46 pm - 12:01 pmSTL-DCA
16h 15m1 stop
6:00 pm - 8:13 amDCA-STL
15h 13m1 stop
$158Frontier
Find Deal
lun., dic. 9 - mar., dic. 10
6:15 am - 9:19 amSTL-DCA
2h 04mnonstop
8:15 am - 9:56 amDCA-STL
2h 41mnonstop
$227American Airlines
Find Deal
vie., dic. 20 - lun., dic. 30
6:16 pm - 9:30 pmSTL-DCA
2h 14mnonstop
9:14 pm - 10:44 pmDCA-STL
2h 30mnonstop
$229American Airlines
Find Deal
vie., feb. 14 - dom., feb. 16
8:15 am - 11:33 amSTL-IAD
2h 18mnonstop
8:50 am - 10:24 amIAD-STL
2h 34mnonstop
$229United Airlines
Find Deal
sáb., ene. 11 - mar., ene. 14
12:55 pm - 4:03 pmSTL-IAD
2h 08mnonstop
8:50 am - 10:24 amIAD-STL
2h 34mnonstop
$237United Airlines
Find Deal
mar., ene. 7 - vie., ene. 10
3:55 pm - 6:55 pmSTL-DCA
2h 00mnonstop
4:05 pm - 7:25 pmDCA-STL
4h 20m1 stop
$239Southwest
Find Deal
vie., feb. 14 - dom., feb. 16
5:17 pm - 12:38 amSTL-IAD
6h 21m1 stop
6:00 am - 9:33 amIAD-STL
4h 33m1 stop
$248Delta
Find Deal
mar., dic. 24 - mar., dic. 31
7:05 pm - 10:00 pmSTL-DCA
1h 55mnonstop
8:00 am - 9:20 amDCA-STL
2h 20mnonstop
$254Southwest
Find Deal
dom., dic. 22 - dom., dic. 29
5:55 pm - 11:02 pmSTL-IAD
4h 07m1 stop
6:57 pm - 11:40 pmIAD-STL
5h 43m1 stop
$261Delta
Find Deal
jue., ene. 2 - dom., ene. 5
7:09 pm - 9:59 pmSTL-DCA
25h 50m1 stop
$74Frontier
Find Deal
mié., ene. 29
5:05 pm - 4:56 pmSTL-IAD
22h 51m1 stop
$79Frontier
Find Deal
sáb., ene. 11
6:15 am - 9:19 amSTL-DCA
2h 04mnonstop
$115American Airlines
Find Deal
vie., ene. 3
8:25 am - 11:43 amSTL-IAD
2h 18mnonstop
$115United Airlines
Find Deal
jue., ene. 2
12:55 pm - 4:03 pmSTL-IAD
2h 08mnonstop
$122United Airlines
Find Deal
vie., ene. 24
5:50 pm - 11:16 pmSTL-IAD
4h 26m1 stop
$124Delta
Find Deal
lun., ene. 27
8:20 am - 11:15 amSTL-DCA
1h 55mnonstop
$129Southwest
Find Deal
jue., ene. 16
5:03 am - 1:25 pmSTL-IAD
7h 22m1 stop
$138American Airlines
Find Deal
mié., dic. 25
5:55 pm - 10:57 pmSTL-DCA
4h 02m1 stop
$138Delta
Find Deal
sáb., dic. 21
8:00 pm - 10:55 pmSTL-DCA
1h 55mnonstop
$139Southwest
Find Deal
lun., mar. 17
9:34 am - 9:58 pmSTL-DCA
11h 24m1 stop
1:01 pm - 8:13 amDCA-STL
20h 12m1 stop
$376Frontier
Find Deal
mié., nov. 27 - vie., dic. 6
9:34 am - 9:58 pmSTL-DCA
11h 24m1 stop
1:01 pm - 8:13 amDCA-STL
20h 12m1 stop
$426Frontier
Find Deal
mié., nov. 27 - mar., dic. 3
4:00 pm - 6:55 pmSTL-DCA
1h 55mnonstop
12:30 pm - 1:50 pmDCA-STL
2h 20mnonstop
$435Southwest
Find Deal
mar., nov. 26 - mar., dic. 31
9:45 am - 3:20 pmSTL-DCA
4h 35m1 stop
6:05 pm - 7:30 pmDCA-STL
2h 25mnonstop
$444Southwest
Find Deal
mar., nov. 26 - mar., dic. 31
8:25 am - 11:36 amSTL-IAD
2h 11mnonstop
6:50 pm - 8:23 pmIAD-STL
2h 33mnonstop
$469United Airlines
Find Deal
mar., nov. 26 - mar., dic. 31
6:30 am - 11:53 amSTL-IAD
4h 23m1 stop
8:30 am - 9:54 amIAD-STL
2h 24mnonstop
$479United Airlines
Find Deal
mar., nov. 26 - mar., dic. 31
12:45 pm - 6:32 pmSTL-DCA
4h 47m1 stop
5:42 pm - 9:43 pmDCA-STL
5h 01m1 stop
$488Delta
Find Deal
mié., nov. 27 - mar., dic. 31
6:30 am - 11:34 amSTL-IAD
4h 04m1 stop
12:30 pm - 4:59 pmIAD-STL
5h 29m1 stop
$488Delta
Find Deal
mar., nov. 26 - mar., dic. 31
6:17 pm - 9:23 pmSTL-DCA
2h 06mnonstop
7:50 pm - 9:17 pmDCA-STL
2h 27mnonstop
$639American Airlines
Find Deal
mar., nov. 26 - vie., nov. 29
6:17 pm - 9:23 pmSTL-DCA
2h 06mnonstop
8:00 pm - 11:58 pmDCA-STL
4h 58m1 stop
$649American Airlines
Find Deal
mar., nov. 26 - mié., nov. 27
6:15 am - 9:19 amSTL-DCA
2h 04mnonstop
8:15 am - 9:56 amDCA-STL
2h 41mnonstop
$227American Airlines
Find Deal
vie., dic. 20 - lun., dic. 30
6:16 pm - 9:30 pmSTL-DCA
2h 14mnonstop
9:14 pm - 10:44 pmDCA-STL
2h 30mnonstop
$229American Airlines
Find Deal
vie., feb. 14 - dom., feb. 16
8:15 am - 11:33 amSTL-IAD
2h 18mnonstop
8:50 am - 10:24 amIAD-STL
2h 34mnonstop
$229United Airlines
Find Deal
sáb., ene. 11 - mar., ene. 14
12:55 pm - 4:03 pmSTL-IAD
2h 08mnonstop
8:50 am - 10:24 amIAD-STL
2h 34mnonstop
$237United Airlines
Find Deal
mar., ene. 7 - vie., ene. 10
8:25 am - 11:43 amSTL-IAD
2h 18mnonstop
6:50 pm - 8:23 pmIAD-STL
2h 33mnonstop
$243United Airlines
Find Deal
dom., dic. 22 - jue., dic. 26
6:04 am - 9:19 amSTL-DCA
2h 15mnonstop
9:14 pm - 10:44 pmDCA-STL
2h 30mnonstop
$249American Airlines
Find Deal
sáb., feb. 15 - dom., feb. 23
7:05 pm - 10:00 pmSTL-DCA
1h 55mnonstop
8:00 am - 9:20 amDCA-STL
2h 20mnonstop
$254Southwest
Find Deal
dom., dic. 22 - dom., dic. 29
6:15 am - 9:19 amSTL-DCA
2h 04mnonstop
8:06 pm - 9:48 pmDCA-STL
2h 42mnonstop
$288American Airlines
Find Deal
lun., dic. 23 - vie., dic. 27
7:05 pm - 10:00 pmSTL-DCA
1h 55mnonstop
8:00 am - 9:20 amDCA-STL
2h 20mnonstop
$289Southwest
Find Deal
dom., dic. 22 - jue., dic. 26
7:55 pm - 10:50 pmSTL-DCA
1h 55mnonstop
6:35 pm - 8:00 pmDCA-STL
2h 25mnonstop
$400Southwest
Find Deal
vie., dic. 13 - dom., dic. 15

Delta flights from St. Louis to District of Columbia

Our best Delta deals on St. Louis to District of Columbia flight tickets
Delta
Dec 24
STL5:17 pmLambert-St Louis
6h 21m
1 stop
IAD12:38 amWashington, D.C. Dulles Intl
Dec 31
IAD6:00 amWashington, D.C. Dulles Intl
4h 33m
1 stop
STL9:33 amLambert-St Louis
Delta
Jan 2
STL5:55 pmLambert-St Louis
4h 07m
1 stop
IAD11:02 pmWashington, D.C. Dulles Intl
Jan 5
IAD6:57 pmWashington, D.C. Dulles Intl
5h 43m
1 stop
STL11:40 pmLambert-St Louis
Delta
Jan 17
STL2:00 pmLambert-St Louis
6h 05m
1 stop
IAD9:05 pmWashington, D.C. Dulles Intl
Jan 20
IAD5:16 pmWashington, D.C. Dulles Intl
5h 33m
1 stop
STL9:49 pmLambert-St Louis

United Airlines flights from St. Louis to District of Columbia

Our best United Airlines deals on St. Louis to District of Columbia flight tickets
United Airlines
Jan 11
STL8:15 amLambert-St Louis
2h 18m
IAD11:33 amWashington, D.C. Dulles Intl
Jan 14
IAD8:50 amWashington, D.C. Dulles Intl
2h 34m
STL10:24 amLambert-St Louis
United Airlines
Jan 7
STL12:55 pmLambert-St Louis
2h 08m
IAD4:03 pmWashington, D.C. Dulles Intl
Jan 10
IAD8:50 amWashington, D.C. Dulles Intl
2h 34m
STL10:24 amLambert-St Louis
United Airlines
Dec 24
STL8:25 amLambert-St Louis
2h 18m
IAD11:43 amWashington, D.C. Dulles Intl
Mar 24
IAD8:20 amWashington, D.C. Dulles Intl
7h 03m
1 stop
STL2:23 pmLambert-St Louis

See travel insights to District of Columbia from

How to get the cheapest flight ticket from St. Louis to District of Columbia

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 day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Wednesday when prices can be found for as low as $235. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $323.

What is the cheapest Lambert-St Louis to District of Columbia flight route?

Fly from Lambert-St Louis to Washington, D.C. Reagan-National for the best Lambert-St Louis - District of Columbia flight prices

What cabin class options are available on Lambert-St Louis to District of Columbia flights?

There are 4 cabin classes available to choose from on Lambert-St Louis to District of Columbia 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 St. Louis to District of Columbia flights?

You could potentially save up to 35% on your flight if you consider stops on a St. Louis to District of Columbia flight.

Cheap St. Louis to District of Columbia flight deals and tips

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

Best Price Found

$74

Fastest flight time

1h 50m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from St. Louis in the past 72 hours is $74. The best round-trip flight deal from St. Louis to District of Columbia found on momondo in the last 72 hours is $136.
The fastest flight from St. Louis to District of Columbia takes 1h 50m
Direct flights go from St. Louis to District of Columbia every day.
There are 2 airports near District of Columbia: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)

  • When did momondo last update prices for flights from Lambert-St Louis Airport to District of Columbia?

    Prices for flights from Lambert-St Louis Airport to District of Columbia refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to District of Columbia?

  • How old do you have to be to fly from Lambert-St Louis Airport to District of Columbia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The travel and health documents you'll need for your trip to District of Columbia 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 District of Columbia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to District of Columbia?


Best airlines flying from St. Louis to District of Columbia

Compare and see reviews for airlines that fly from St. Louis to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $98Free CancellationRating
6.1
3,526 reviews
Search Frontier flights
American AirlinesPriceFrom $129Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Spirit AirlinesPriceFrom $158Free CancellationRating
6.3
8,176 reviews
Search Spirit Airlines flights
DeltaPriceFrom $177Free CancellationRating
8.0
8,734 reviews
Search Delta flights
SouthwestPriceFrom $190Free CancellationRating
8.1
4,984 reviews
Search Southwest flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,156 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to District of Columbia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to District of Columbia. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from St. Louis to District of Columbia 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 St. Louis to District of Columbia?

momondo provides multiple filters to help you find the best flight to District of Columbia from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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


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