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>

$68 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

Fri, Mar 13 - Mon, Mar 16

6:20 am - 1:34 pm

IAD

STL

8h 14m

1 stop

12:16 pm - 12:31 am

STL

IAD

11h 15m

1 stop

$270Frontier

Tue, Apr 28 - Thu, Apr 30

2:40 pm - 4:00 pm

DCA

STL

2h 20mnonstop

10:15 am - 6:05 pm

STL

DCA

6h 50m

2 stops

$270Southwest

Fri, Apr 3 - Sat, Apr 4

9:00 am - 10:28 am

IAD

STL

2h 28mnonstop

9:16 am - 4:03 pm

STL

IAD

5h 47m

1 stop

$271United Airlines

Tue, Mar 24 - Tue, Mar 31

1:00 pm - 7:55 pm

DCA

STL

7h 55m

2 stops

10:15 am - 6:10 pm

STL

DCA

6h 55m

1 stop

$271Southwest

Tue, Mar 31 - Mon, Apr 6

6:09 am - 11:11 am

DCA

STL

6h 02m

1 stop

6:00 am - 9:12 am

STL

DCA

2h 12mnonstop

$272American Airlines

Wed, Apr 15 - Tue, Apr 28

9:00 am - 10:28 am

IAD

STL

2h 28mnonstop

8:30 am - 11:43 am

STL

IAD

2h 13mnonstop

$274United Airlines

Thu, Mar 19 - Sat, Mar 21

8:00 am - 9:30 am

DCA

STL

2h 30mnonstop

9:35 pm - 8:15 am

STL

DCA

9h 40m

1 stop

$274Southwest

Wed, Mar 25 - Thu, Mar 26

5:00 am - 8:35 am

IAD

STL

4h 35m

1 stop

1:34 pm - 8:30 pm

STL

IAD

5h 56m

1 stop

$275American Airlines

Wed, Mar 25 - Thu, Mar 26

6:00 am - 12:19 pm

DCA

STL

7h 19m

1 stop

9:41 am - 4:26 pm

STL

DCA

5h 45m

1 stop

$275Delta

Mon, Mar 9 - Thu, Mar 12

6:20 am - 1:19 pm

IAD

STL

7h 59m

1 stop

9:05 pm - 1:44 pm

STL

IAD

15h 39m

1 stop

$276Frontier

Useful Info

Low season	January
High season	May
Cheapest flight	$68

Best time to beat the crowds but there is an average 8% increase in price.

Most popular time to fly and prices are also 7% lower on average.

Flight from Washington Dulles 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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Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

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

St. Louis (STL)

STL

$68 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