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Cheap Flights from Washington to St. Louis

Prices were available within the past 7 days and starts at $143 for one-way flights and $274 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Washington to St. Louis route information

Origin Airport Ronald Reagan Washington National
Destination Airport Lambert-St. Louis Intl.
Airlines Serving American Airlines, Delta, United
Flight Price $273
Distance 716 mi

Cheap DCA to STL Flights

  • From Washington to Saint Louis, which day is going to have the most flight times?

    The day with the most departure times for this route is Wednesday with 17 options. The day of the week with the fewest number of times is Saturday with only seven departures.
  • Can I change the date of my flight?

    You sure can and you may save money by changing when you leave. The lowest-cost day to fly in March is Tuesday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.
  • How much is a plane ticket to Saint Louis (STL) from Washington (DCA)?

    Cost can range from $169 to $700, prices for DCA to STL fluctuate less than most routes in US. However, usually the sooner you book, the better the price.
  • What is the cheapest airline flying from Washington to Saint Louis?

    Prices are hitting highs of $700 over the next three months when flying to STL from DCA. Check out American Airlines, as they have been booking customers at just $169.
  • What is the cheapest day to fly to Saint Louis?

    Feb 29th has bookings (as of Feb 24th) for as little as $208. That comes in 44% below the average price. Saving on flight fares gives you more cash in your hand.
  • How long does it take to fly from Washington to Saint Louis?

    From DCA to STL, the fastest flight time is two hours and 10 minutes. Remember, there is a one-hour time difference.
  • Which airline has the least delays from Washington to Saint Louis?

    Booking with Envoy Air means you will arrive to Saint Louis around the time you were supposed to. In fact, this timely airline has a 96% on-time average. It never hurts to be prepared. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.

Washington to St. Louis Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Washington to St. Louis offer the perfect respite. Not only does exploring St. Louis provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Washington to Missouri may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from DCA to STL today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of St. Louis are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to St. Louis more flexbily many prefers to purchase one-way tickets with options to take different airlines. One way ticket to Missouri is $143 now!

Jan 16, 2020

Great quality and good staff

May 13, 2019

American Airlines should institute free 1st checked bagged policy, this would make the company more competitive and customers would greatly appreciate suggested policy

Apr 28, 2019

More leg room than United flights

Mar 23, 2019

Not much legroom.

Nov 8, 2018

Seats behind were dangerously close to those in front.

Sep 9, 2018

I use a walker but at all levels from. Check in to baggage pick up it was 5 stars

Jul 22, 2018

Flight attendent very helpful and friendly.

Jul 13, 2018

Very cold no blankets

Jul 8, 2018

Hopefully airline will invest in larger seats.

Jun 5, 2018

I slept on the flight. So not sure how the service was.

Package Disclaimer

*Savings amount equal to 100% when flight + hotel are booked together. Prices based on searches conducted by fellow shoppers within the past 24 hours. There is no guarantee that these prices will be in effect at the time of your search. Vacation package savings are based on comparison to prices on of the same components booked separately. Savings vary based on origin/destination, length of trip, stay dates and travel partners, and aren't available on all packages.