₹14,151 Cheap Flights from St. Louis (STL) to Washington (DCA)

View ₹14,151 flight on Mon, 26 Jan 2026Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Ronald Reagan National Airport (DCA)

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

Prices were available within the past 7 days and start at ₹14,151 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

August is typically the cheapest month to fly

From ₹10,467 - ₹42,356 per traveller.
Flight from St. Louis to Washington route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Ronald Reagan Washington National
Distance
1147 km
Average flight time
3 hours 2 mins

Perfect flights from St. Louis to Washington

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from St. Louis to Washington. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Lambert-St. Louis Intl. to Ronald Reagan Washington National ticket options cater to your travel preferences, with incredible one-way fares from ₹14,151 and roundtrip prices . Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Ronald Reagan Washington National and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Washington.

Frequently asked questions

How much is a flight from STL to National Airport?
The lowest price advertised for a round-trip journey from St. Louis Lambert International Airport to National Airport is . But you better move fast. This price is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from STL to DCA?
This differs between airlines, as each has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Lambert Field to National Airport 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 St. Louis Lambert International Airport to Ronald Reagan Washington National Airport (DCA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Lambert Field to National Airport?
With a flight distance of 1,150 kilometres, it's just a short hop from STL to Ronald Reagan Washington National Airport (DCA). It might be a quick one, but it's still worth packing a good book to read.
Which airlines fly direct from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport (DCA)?
Many adventurers like to fly with Southwest Airlines (WN) from Lambert Field to DCA. It offers 117 monthly flights, so you can pick a flight time that's right for you. You could also take a look at the fares on offer with American Airlines (AA). This airline operates 108 flights every month between St. Louis and Arlington.
Are Lambert Field to Ronald Reagan Washington National Airport (DCA) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally pick up a bargain, with some super cheap fares from Lambert Field to DCA cropping up a few weeks before the departure date. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines issue prices so far in advance.

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