How does KAYAK find such low prices on flights from District of Columbia to St. Louis?

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 District of Columbia to St. Louis. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from District of Columbia to St. Louis?

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 St. Louis with an airline and back to District of Columbia with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to St. Louis?

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 St. Louis from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$119 CHEAP FLIGHTS from District of Columbia to St. Louis

STL

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Flight Deals

Cheap Flights from District of Columbia to St. Louis

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from District of Columbia to St. Louis

Wed, Jul 8 - Mon, Jul 13

8:33 pm - 5:37 pm

IAD

STL

22h 04m

1 stop

4:57 pm - 4:40 pm

STL

IAD

22h 43m

1 stop

$261Frontier

Wed, Jun 24 - Mon, Jun 29

11:45 am - 2:50 pm

DCA

STL

4h 05m

1 stop

3:15 pm - 6:15 pm

STL

DCA

2h 00mnonstop

$262Southwest

Sat, Jun 13 - Tue, Jun 23

8:54 pm - 6:36 pm

IAD

STL

22h 42m

2 stops

6:31 pm - 10:22 am

STL

IAD

14h 51m

1 stop

$263Multiple Airlines

Wed, Jul 1 - Mon, Aug 17

6:40 pm - 8:00 pm

DCA

STL

2h 20mnonstop

3:45 pm - 10:30 pm

STL

DCA

5h 45m

1 stop

$263Southwest

Thu, Jun 18 - Sun, Jul 5

7:30 am - 5:30 pm

IAD

STL

11h 00m

1 stop

4:09 pm - 6:33 pm

STL

IAD

25h 24m

1 stop

$265Frontier

Tue, Jul 7 - Tue, Jul 14

10:31 am - 3:46 pm

IAD

STL

6h 15m

1 stop

8:43 am - 11:55 am

STL

IAD

2h 12mnonstop

$267United Airlines

Sat, Sep 5 - Mon, Sep 7

4:32 pm - 6:03 pm

DCA

STL

2h 31mnonstop

6:00 am - 9:14 am

STL

DCA

2h 14mnonstop

$269American Airlines

Sat, Jun 13 - Tue, Jun 16

8:54 pm - 6:36 pm

IAD

STL

22h 42m

2 stops

6:31 pm - 10:22 am

STL

IAD

14h 51m

1 stop

$269Multiple Airlines

Tue, Sep 29 - Thu, Oct 8

10:05 am - 1:23 pm

IAD

STL

4h 18m

1 stop

5:30 pm - 12:05 am

STL

IAD

5h 35m

1 stop

$273Delta

Tue, Sep 29 - Thu, Oct 8

6:00 am - 10:55 am

DCA

STL

5h 55m

1 stop

5:30 pm - 11:18 pm

STL

DCA

4h 48m

1 stop

$273Delta

Useful Info

Low season	January
High season	May
Cheapest flight	$119

Best time to beat the crowds with an average 4% drop in price.

Most popular time to fly with an average 9% increase in price.

Flight from Reagan Washington National Airport to St. Louis

How does KAYAK find such low prices on flights from District of Columbia to St. Louis?
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 District of Columbia to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from District of Columbia 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 District of Columbia to St. Louis?
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 St. Louis with an airline and back to District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to St. Louis?
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 St. Louis from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

O'Fallon

Wentzville

Farmington

Eureka

Litchfield

Grafton

Shrewsbury

Glencoe

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

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Direct Flights

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Origins

Other airports

Return flight deals

Information on the airport you'll fly into in St. Louis

St. Louis (STL)

STL

$119 Find Cheap Flights from District of Columbia to St. Louis

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

Cheap Flights from District of Columbia to St. Louis

Recent round-trip flight deals from District of Columbia to St. Louis

Recent one-way flight deals from District of Columbia to St. Louis

Recent last minute flight deals from District of Columbia to St. Louis

Recent direct flight deals from District of Columbia to St. Louis

Good to know

FAQs for booking flights from District of Columbia to St. Louis

How does KAYAK find such low prices on flights from District of Columbia to St. Louis?

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 District of Columbia to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from District of Columbia 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 District of Columbia to St. Louis?

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 St. Louis with an airline and back to District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to St. Louis?

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 St. Louis from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near St. Louis?

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

Information on the airport you'll fly into in St. Louis

Cabin class types available on flights to District of Columbia

Complete your trip to St. Louis with a hotel stay or car rental

Find direct flights for St. Louis

Flights to other popular destinations

Flights from domestic origins to St. Louis

Choose which airport to fly into in St. Louis

Find deals for your return flight