Cheap flights from St. Louis to Washington, D.C. from $88

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1 stop
Fri, Oct 31
St. Louis STLWashington, D.C. IAD
$88
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1 stop
Thu, Oct 30
St. Louis STLWashington, D.C. BWI
$112
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1 stop
Fri, Oct 31
St. Louis STLWashington, D.C. BWI
$120
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1 stop
Thu, Oct 30
St. Louis STLWashington, D.C. DCA
$135
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Direct
Tue, Oct 28
St. Louis STLWashington, D.C. IAD
$174
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Direct
Wed, Oct 29
St. Louis STLWashington, D.C. IAD
$176
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1 stop
Fri, Oct 31 – Sun, Nov 2
St. Louis STLWashington, D.C. IAD
$169
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Direct
Wed, Oct 29 – Fri, Oct 31
St. Louis STLWashington, D.C. IAD
$307
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Direct
Wed, Oct 29 – Fri, Oct 31
St. Louis STLWashington, D.C. IAD
$307
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Direct
Wed, Oct 29 – Fri, Oct 31
St. Louis STLWashington, D.C. IAD
$307
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Direct
Wed, Oct 29 – Fri, Oct 31
St. Louis STLWashington, D.C. IAD
$307
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Direct
Wed, Oct 29 – Fri, Oct 31
St. Louis STLWashington, D.C. IAD
$307
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How much do flights to Washington, D.C. cost?

Cheapest one-way trip

$88

Cheapest nonstop round-trip

$469

Cheapest round-trip

$169

Average round-trip

$309

Includes rare itinerary

Travel hack

Key info about flying to Washington, D.C.

Depart from
St. Louis Lambert International
Arrive to
Washington Dulles International
Average flights per week
343
Flight distance
1118 km
Worth visiting
National Mall - Lincoln Memorial

Weekly direct flights

Discover the top airlines offering direct flights from St. Louis to Washington, D.C. in the next month. You’ll find the number of daily direct flights per airline in the chart.

AirlineSun 28.09Mon 29.09Tue 30.09Wed 01.10Thu 02.10Fri 03.10Sat 04.10
United Airlines
221122---
Weekly flights: 10 totalDaily flights: 1.43 averageMost flights: Sunday 2 flights
AirlineSun 05.10Mon 06.10Tue 07.10Wed 08.10Thu 09.10Fri 10.10Sat 11.10
United Airlines
2211221
Weekly flights: 11 totalDaily flights: 1.57 averageMost flights: Sunday 2 flights
AirlineSun 12.10Mon 13.10Tue 14.10Wed 15.10Thu 16.10Fri 17.10Sat 18.10
United Airlines
2211221
Weekly flights: 11 totalDaily flights: 1.57 averageMost flights: Sunday 2 flights
AirlineSun 19.10Mon 20.10Tue 21.10Wed 22.10Thu 23.10Fri 24.10Sat 25.10
United Airlines
2211221
Weekly flights: 11 totalDaily flights: 1.57 averageMost flights: Sunday 2 flights

Check-in for a flight from St. Louis to Washington, D.C.

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo
Frontier AirlinesFFTF9No
Spirit AirlinesNKSNKNo
Southern Airways ExpressFDY9XYes
JetBlue AirwaysJBUB6No

Online check-in is not available for these airlines.

Weather in Washington, D.C.

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January5°C-1°C
February8°C0°C
March12°C3°C
April19°C8°C
May23°C13°C
June29°C18°C
July32°C21°C
August30°C20°C
September26°C17°C
October20°C11°C
November13°C5°C
December8°C1°C
Hottest Month
32°C
July
Coldest month
-1°C
January
Sunny days
266
days per year
Snow days
8
days per year

14 day forecast

Sunday
5 Oct
30°C12°C
12 Oct
20°C12°C
Monday
6 Oct
27°C16°C
13 Oct
19°C13°C
Tuesday
7 Oct
25°C18°C
14 Oct
88%
11°C11°C
Wednesday
8 Oct
87%
21°C15°C
15 Oct
21°C11°C
Thursday
9 Oct
18°C10°C
16 Oct
82%
27°C14°C
Friday
10 Oct
17°C9°C
17 Oct
26°C18°C
Saturday
11 Oct
22°C10°C
18 Oct
23°C14°C
Book your trip to arrive at Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National. The distance between St. Louis and Washington, D.C. is 1118 km. The most popular airlines for this route are United Airlines, Frontier Airlines, Spirit Airlines, Southern Airways Express, and JetBlue Airways. St. Louis and Washington, D.C. have 343 direct flights per week. When you arrive at Washington, D.C., consider visiting National Mall, and Lincoln Memorial.

Frequently asked questions

How long does it take to travel from St. Louis to Washington, D.C.?
A one-way nonstop (direct) flight between St. Louis and Washington, D.C. takes around 2.2 hours.
What is the flight distance between St. Louis and Washington, D.C.?
The flight distance between St. Louis and Washington, D.C. is 1118 km.
What airlines offer nonstop (direct) flights between St. Louis and Washington, D.C.?
Several carriers operate flights between St. Louis and Washington, D.C.. Airlines offering nonstop (direct) flights include United Airlines.
What are the most popular routes to and from St. Louis?
Travelers frequently search for route combinations, such as St. Louis and Las Vegas, Cancún, Orlando, Los Angeles, San Francisco, Denver, Mexico City, Tuxtla Gutiérrez, Toronto, Ottawa, Lima, Buenos Aires, Cali, Sydney, Warsaw, San José, Reykjavik, Fort Lauderdale, Melbourne, Ontario.
What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and Atlanta, Los Angeles, Orlando, Dallas, Mexico City, Tampa, London, Denver, San Francisco, Houston, Boston, Lima, Miami, Chicago, Phoenix, Las Vegas, Guadalajara, Seattle, Detroit, New Delhi.
What airports are near St. Louis?
The main airport in St. Louis is St. Louis Lambert International. It is also served by St. Louis Lambert International, General Wayne A. Downing Peoria International, Evansville Regional, MidAmerica St. Louis, Williamson County Regional, Waynesville-St. Robert Regional, Cape Girardeau Regional, Central Illinois Regional, Barkley Regional, Abraham Lincoln Capital.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Harrisburg International, Trenton–Mercer, Lancaster, Salisbury–Ocean City–Wicomico Regional, Shenandoah Valley Regional.
Which airlines fly between St. Louis and Washington, D.C.?
Currently, you can fly between St. Louis and Washington, D.C. with United Airlines, Frontier Airlines, Spirit Airlines, Southern Airways Express, JetBlue Airways.
When’s the best time to travel between St. Louis and Washington, D.C.?
If you don’t have specific dates for your trip between St. Louis and Washington, D.C., you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between St. Louis and Washington, D.C.?
How many airports are there near St. Louis?
How many airports are there near Washington, D.C.?
What time do nonstop (direct) flights between St. Louis and Washington, D.C. depart?
What time do nonstop (direct) flights between St. Louis and Washington, D.C. arrive?
What time do flights between St. Louis and Washington, D.C. depart?
What time do flights between St. Louis and Washington, D.C. arrive?

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