₹27,733 Cheap Flights from St. Louis (STL) to Washington (IAD)

View ₹27,733 flight on Sun, 27 Apr 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ₹27,733 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much is a flight from STL to Washington Dulles Intl. Airport (IAD)?
If you’re planning on travelling 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 kilometres, 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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