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

Bundle Your Flight + Hotel & Save!

Airlines that fly from St. Louis Lambert Intl. Airport (STL) to Ronald Reagan Washington National Airport (DCA)

  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 45% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in
Flights from St. Louis (STL) to Washington (DCA)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Ronald Reagan Washington National
Distance
1147 km

St. Louis to Washington Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to Washington will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Washington.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to DCA flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to DCA with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

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 kilometers, 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.
*Available to Expedia members.