Flights from St Louis Airport (STL) to Dulles International Airport Airport (IAD)

We've found the cheapest flights to Washington

Returns from £140.10

One-way from £69.65

Getting to Lambert-St. Louis International from Washington Dulles International is very straight forward. There are 6 airliners who all offer direct flights several times a week. The flight time is approximately 2 Hours 8 Minutes.

The most expensive flight prices are typically at weekends and daytime flights. The cheapest flights available will generally be mid week or late in the evening, so if you are on a budget then these are the flight times you should consider. Alternatively, you could book well in advance and you flight could be up to 50% cheaper, especially with budget airliners. Flight to Washington Dulles International will get more expensive the nearer you get the departure date, so it’s advisable to book in advance if it is possible.

When arriving at Washington Dulles International don’t forget to set your watch to the local time!

To see all airliners that offer flights between Lambert-St. Louis International and Washington Dulles International please see the table below.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
United Express222222208:2512:37VIEW FLIGHTS
Lufthansa111111112:3712:37VIEW FLIGHTS
Copa Airlines111111108:2508:25VIEW FLIGHTS
Brussels Airlines111111112:3712:37VIEW FLIGHTS
Avianca111111108:2508:25VIEW FLIGHTS
Centene Management Company010000013:3013:30VIEW FLIGHTS

United Express offer the highest number of flights for this route with departures times between 08:25 and 12:37.

You can find the latest flight availability and prices from United Express at www.google.com/search?q=United Express. You can also book direct and get their latest discounts.

Flight times for the route are summarised in the table below. These time were correct at the time of writing, but please be aware that times may vary from time to time so please check their website for exact times and the dates you wish to fly.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
08:25
AirlineFlight  No
AviancaAV2337
Copa AirlinesCM2684
United ExpressUA4506
12:37
AirlineFlight  No
LufthansaLH8585
Brussels AirlinesSN9013
United ExpressUA4454
VIEW FLIGHTS
Tuesday
08:25
AirlineFlight  No
AviancaAV2337
Copa AirlinesCM2684
United ExpressUA4506
12:37
AirlineFlight  No
LufthansaLH8585
Brussels AirlinesSN9013
United ExpressUA4454
13:30
AirlineFlight  No
Centene Management CompanyTMP4144
VIEW FLIGHTS
Wednesday
08:25
AirlineFlight  No
AviancaAV2337
Copa AirlinesCM2684
United ExpressUA4506
12:37
AirlineFlight  No
LufthansaLH8585
Brussels AirlinesSN9013
United ExpressUA4454
VIEW FLIGHTS
Thursday
08:25
AirlineFlight  No
AviancaAV2337
Copa AirlinesCM2684
United ExpressUA4506
12:37
AirlineFlight  No
LufthansaLH8585
Brussels AirlinesSN9013
United ExpressUA4454
VIEW FLIGHTS
Friday
08:25
AirlineFlight  No
AviancaAV2337
Copa AirlinesCM2684
United ExpressUA4506
12:37
AirlineFlight  No
LufthansaLH8585
Brussels AirlinesSN9013
United ExpressUA4454
VIEW FLIGHTS
Saturday
08:25
AirlineFlight  No
AviancaAV2337
Copa AirlinesCM2684
United ExpressUA4506
12:37
AirlineFlight  No
LufthansaLH8585
Brussels AirlinesSN9013
United ExpressUA4454
VIEW FLIGHTS
Sunday
08:25
AirlineFlight  No
AviancaAV2337
Copa AirlinesCM2684
United ExpressUA4506
12:37
AirlineFlight  No
LufthansaLH8585
Brussels AirlinesSN9013
United ExpressUA4454
VIEW FLIGHTS

If the airlines stated don’t offer flights that suite your travel times, you could look at alternative options. Below we have summarised flights from alternative departures airports and flights that are not direct.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Bloomington Central Illinois Regional at Bloomington Normal to Dulles01 Hour 59 Minutes
Peoria to Dulles02 Hours 4 Minutes
St Louis Spirit Of St Louis to Dulles02 Hours 9 Minutes

Before you book your flights make sure you your passport is valid and preferably has at least 6 months or more left before it expires. To renew your passport it can take several weeks to renew and with many airliners flights are not refundable.

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Flight Price FAQ - St Louis (STL) to Washington (IAD)

DIRECT United
What is the cheapest direct flight one way from St Louis STL to Washington IAD?
The cheapest direct flight one way from St Louis STL to Washington IAD is £69.65 ($88 €83.32)
£69.65
$88 | €83.32
Check Latest Price
DIRECT United
What is the cheapest direct return flight from St Louis STL to Washington IAD?
The cheapest direct return flight from St Louis STL to Washington IAD is £140.10 ($177 €167.59)
£140.10
$177 | €167.59
Check Latest Price
1+ STOP(S)
What is the cheapest flight one way from St Louis STL to Washington IAD?
The cheapest flight one way from St Louis STL to Washington IAD is £50.66 ($64 €60.60)
£50.66
$64 | €60.60
Check Latest Price
1+ STOP(S)
What is the cheapest return flight from St Louis STL to Washington IAD?
The cheapest return flight from St Louis STL to Washington IAD is £101.31 ($128 €121.19)
£101.31
$128 | €121.19
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from STL to IAD

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Flight Info FAQ - St Louis (STL) to Washington (IAD)

Who flies from St Louis to Washington?
The following airlines fly from St Louis (STL) to Washington (IAD): Avianca, Brussels Airlines, Centene Management Company, Copa Airlines, Lufthansa, United Express.
How far is the flight from St Louis to Washington?
The flight from St Louis to Washington is 1,118KM or 694 miles.
How long does the flight from St Louis to Washington to take?
The flight from St Louis to Washington takes 2 Hours 8 Minutes.

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