Cheap Flights from St. Louis (STL) to Washington (IAD) ~

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Washington Dulles Intl. Airport (IAD)

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Find the cheapest month to fly from St. Louis (STL) to Washington (IAD)

February is typically the cheapest month to fly

From HK$1,173 - HK$4,737 per traveller.

Graph displaying average flight prices per month

St. Louis to Washington route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Washington Dulles Intl.
Distance
1111 km
Average flight time
3 hours 8 mins

Flights from St. Louis to Chantilly

Book cheap flights from St. Louis (STL) to Chantilly (IAD) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from St. Louis (STL) to Chantilly (IAD) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your St. Louis (STL) to Chantilly (IAD) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Chantilly flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Chantilly and things to do in Chantilly for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Chantilly more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Chantilly is now!

 

Frequently asked questions

How much is a flight from STL to Washington Dulles Intl. Airport (IAD)?
If you're planning on traveling between STL and Washington Dulles Intl. Airport (IAD), round-trip journeys start from . This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to IAD?
This differs between air carriers, as each has its own set of terms and conditions. Head to the Customer Service Portal, where you'll find instructions on how to cancel online.
How do I find cheap flights from Lambert-St. Louis Intl. Airport (STL) to IAD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Lambert Field to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Lambert-St. Louis Intl. Airport (STL) to Dulles Intl. Airport?
With a flight distance of 1,100 kilometers, it's only a hop from Lambert Field to IAD. It might be a quick journey, but it's still worth bringing a good book to read.
Which airlines fly direct from Lambert Field to Washington Dulles Intl. Airport (IAD)?
Operating 60 flights monthly, United Airlines (UA) is a great choice when flying directly from Lambert Field to IAD.
Are STL to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Lambert Field to IAD at the last minute could be your ticket to a fantastic deal. However, it could end up costing you a whole lot more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

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