Skyscanner home

170 € Cheap Flights from St Louis to Washington Ronald Reagan

Return selected
Return selected
origin
Enter the city you're flying from, or choose from the options below
Include nearby airports
    selected
    destination
    . Enter your destination, or choose from the options below
    Include nearby airports
      selected
      Travellers and cabin class, 1 Adult, Economy
      Southwest Airlines
      American Airlines
      Republic Airways
      PSA Airlines

      Compare St Louis to Washington Ronald Reagan flight deals

      Find the cheapest month or even day of the year to fly to Washington Ronald Reagan

      Book the best Washington Ronald Reagan fare with no extra fees

      Flight deals from St Louis to Washington Ronald Reagan

      Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Washington Ronald Reagan Airport? If you want to travel next month, return fares start from 170 €. Find the lowest prices on one-way and return tickets right here.
      Washington D.C..170 € per passenger.Departing Mon, 19 Oct, returning Sat, 24 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Mon, 19 Oct, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Sat, 24 Oct, arriving in St Louis.Price includes taxes and charges.From 170 €, select.
      Washington D.C..170 € per passenger.Departing Wed, 30 Sep, returning Tue, 6 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Wed, 30 Sep, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Tue, 6 Oct, arriving in St Louis.Price includes taxes and charges.From 170 €, select.
      Washington D.C..181 € per passenger.Departing Wed, 23 Sep, returning Wed, 30 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Wed, 23 Sep, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Wed, 30 Sep, arriving in St Louis.Price includes taxes and charges.From 181 €, select.
      Washington D.C..183 € per passenger.Departing Fri, 13 Nov, returning Wed, 18 Nov.Return flight with Frontier Airlines and jetBlue.Outbound indirect flight with Frontier Airlines, departs from St Louis on Fri, 13 Nov, arriving in Washington Ronald Reagan.Inbound indirect flight with jetBlue, departs from Washington Ronald Reagan on Wed, 18 Nov, arriving in St Louis.Price includes taxes and charges.From 183 €, select.
      Washington D.C..203 € per passenger.Departing Wed, 30 Sep, returning Tue, 6 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Wed, 30 Sep, arriving in Washington Ronald Reagan.Inbound direct flight with Southwest Airlines departs from Washington Ronald Reagan on Tue, 6 Oct, arriving in St Louis.Price includes taxes and charges.From 203 €, select.
      Washington D.C..203 € per passenger.Departing Thu, 12 Nov, returning Mon, 16 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Thu, 12 Nov, arriving in Washington Ronald Reagan.Inbound direct flight with Southwest Airlines departs from Washington Ronald Reagan on Mon, 16 Nov, arriving in St Louis.Price includes taxes and charges.From 203 €, select.
      Washington D.C..203 € per passenger.Departing Thu, 1 Oct, returning Wed, 7 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Thu, 1 Oct, arriving in Washington Ronald Reagan.Inbound direct flight with Southwest Airlines departs from Washington Ronald Reagan on Wed, 7 Oct, arriving in St Louis.Price includes taxes and charges.From 203 €, select.
      Washington D.C..204 € per passenger.Departing Wed, 23 Sep, returning Thu, 24 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Wed, 23 Sep, arriving in Washington Ronald Reagan.Inbound direct flight with Southwest Airlines departs from Washington Ronald Reagan on Thu, 24 Sep, arriving in St Louis.Price includes taxes and charges.From 204 €, select.
      Washington D.C..220 € per passenger.Departing Tue, 1 Dec, returning Tue, 15 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 1 Dec, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Tue, 15 Dec, arriving in St Louis.Price includes taxes and charges.From 220 €, select.
      Washington D.C..220 € per passenger.Departing Tue, 17 Nov, returning Tue, 1 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 17 Nov, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Tue, 1 Dec, arriving in St Louis.Price includes taxes and charges.From 220 €, select.
      Washington D.C..220 € per passenger.Departing Wed, 17 Feb, returning Wed, 24 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Wed, 17 Feb, arriving in Washington Ronald Reagan.Inbound indirect flight with Delta, departs from Washington Ronald Reagan on Wed, 24 Feb, arriving in St Louis.Price includes taxes and charges.From 220 €, select.
      Washington D.C..222 € per passenger.Departing Fri, 30 Oct, returning Mon, 2 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Fri, 30 Oct, arriving in Washington Ronald Reagan.Inbound direct flight with Southwest Airlines departs from Washington Ronald Reagan on Mon, 2 Nov, arriving in St Louis.Price includes taxes and charges.From 222 €, select.
      Washington D.C..236 € per passenger.Departing Tue, 22 Dec, returning Tue, 5 Jan.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 22 Dec, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Tue, 5 Jan, arriving in St Louis.Price includes taxes and charges.From 236 €, select.
      Washington D.C..238 € per passenger.Departing Tue, 5 Jan, returning Tue, 19 Jan.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 5 Jan, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Tue, 19 Jan, arriving in St Louis.Price includes taxes and charges.From 238 €, select.
      Washington D.C..267 € per passenger.Departing Fri, 15 Jan, returning Mon, 18 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Fri, 15 Jan, arriving in Washington Ronald Reagan.Inbound direct flight with Southwest Airlines departs from Washington Ronald Reagan on Mon, 18 Jan, arriving in St Louis.Price includes taxes and charges.From 267 €, select.
      Washington D.C..284 € per passenger.Departing Sat, 26 Dec, returning Wed, 30 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Sat, 26 Dec, arriving in Washington Ronald Reagan.Inbound direct flight with Southwest Airlines departs from Washington Ronald Reagan on Wed, 30 Dec, arriving in St Louis.Price includes taxes and charges.From 284 €, select.

      Find the cheapest month to fly from St Louis to Washington Ronald Reagan

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Washington Ronald Reagan flights are currently cheapest in October.
      Sep
      from 181 €
      Oct
      from 170 €
      Nov
      from 183 €
      Dec
      from 220 €
      Jan
      from 238 €
      Feb
      from 220 €
      Mar
      from 325 €
      Apr
      from 335 €
      May
      from 335 €
      Jun
      from 324 €
      Jul
      from 371 €
      Aug
      Find prices

      Direct flights from St Louis to Washington Ronald Reagan

      American Airlines
      PSA Airlines
      Republic Airways
      Southwest Airlines

      St Louis to Washington Ronald Reagan: Alternative routes

      Compare routes from St Louis to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Ronald Reagan.

      Washington Ronald Reagan

      5km from central Washington D.C.
      Closest
      from 170 €
      Search flights

      Washington Dulles

      37km from central Washington D.C.
      Cheapest
      from 107 €
      Search flights

      Baltimore Washington International

      44km from central Washington D.C.
      Cheapest
      from 107 €
      Search flights

      St Louis to Washington D.C.: Flight information

      The things to know before you go.
      Cheapest flight found170 €
      Cheapest month to flySeptember
      Average flight time2 hrs, 5 mins
      Most popular airlineSouthwest Airlines
      Average flights per week82

      Finding cheap flights from St Louis to Washington Ronald Reagan: Frequently asked questions

      The best price we found for a return flight from St Louis to Washington Ronald Reagan is 170 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      2 hours and 5 minutes is the average flight time from St Louis to Washington Ronald Reagan.
      Southwest Airlines, American Airlines and Republic Airways fly direct from St Louis to Washington Ronald Reagan.
      As of September 2026, there are 82 flights per week flying from St Louis to Washington Ronald Reagan.
      The cheapest month to fly from St Louis to Washington Ronald Reagan is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Washington Ronald Reagan Airport on Wednesday, 30 September 2026.
      Yes – the average flight time is 2 hours and 5 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Ronald Reagan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to Washington Ronald Reagan.

      Flying from St Louis Airport (STL) to Washington Ronald Reagan Airport (DCA): what you need to know

      • The average time for a direct flight from St Louis Airport to Washington Ronald Reagan Airport is 2 hours 5 minutes.

      • Washington DC is one hour ahead of St Louis and observes the UTC-5 timezone.

      • You can choose from 37 weekly St Louis Airport to Washington Ronald Reagan Airport flights. The 05:12 departure with American Airlines is the earliest flight you can take. Southwest Airlines operates the last service of the day at 20:50.

      • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably catch your STL to DCA flight.

      • During popular months such as July, you'll want to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead of international flights whenever you're travelling during a peak period in general.

      • American Airlines is your gateway to exploring Washington DC (and maybe even some other exciting parts of the United States!). Check out the direct flights from St Louis Airport to Washington Ronald Reagan Airport offered by this carrier.

      • American Airlines is the airline most travellers choose for this route.

      • With 73.64% of its services landing as planned, American Airlines is the most punctual carrier offering STL to DCA flights.

      • If you want to split up your journey, just uncheck 'Direct flights only' when searching for your ticket from St Louis Airport to Washington Ronald Reagan Airport. These are the most popular stopovers between STL and DCA:

        • Detroit Wayne County Airport

        • Nashville Airport

        • Chicago Midway Airport

      How to find the cheapest flights from St Louis Airport (STL) to Washington Ronald Reagan Airport (DCA)

      • 89 € is currently the lowest price for a one-way St Louis Airport to Washington Ronald Reagan Airport flight. Return flights start from 170 €. These prices can change depending on demand.

      • Book one month before you travel. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from STL to DCA.

      • Organise your trip for June. That's the cheapest month for flights from St Louis Airport to Washington Ronald Reagan Airport. If you're flexible with your travel dates, use the 'Whole month' tool to see the lowest price across each month.

      • There's no need to check every day to see if fares have dropped when you set up a Price Alert. We'll send you an update the moment a special offer becomes available on cheap flights from STL to DCA.

      • Lock in the right flight for you with the help of the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from St Louis Airport to Washington Ronald Reagan Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

      Handy information about St Louis Airport (STL)

      Arriving at Washington Ronald Reagan Airport (DCA)

      When to fly to Washington Ronald Reagan Airport (DCA)

      • August is the most popular month for flights from St Louis Airport to Washington Ronald Reagan Airport. To escape the crowds, visit Washington DC in March.

      • When booking your flight from St Louis Airport to Washington Ronald Reagan Airport, think about the type of weather you like. July is the warmest month in Washington DC, with the temperature ranging from 19ºC (66ºF) to 33ºC (91ºF).

      • If you want to travel in cooler conditions, search for a cheap ticket from STL to DCA in January. Temperatures average between -6ºC (21ºF) and 10ºC (50ºF) then.

      Explore more of the United States

      • New York is just one of the many cities in the United States waiting to be discovered once you've seen Washington DC. Around 322 kilometres away to the north-east, check out popular attractions including Central Park, Statue of Liberty and Metropolitan Museum of Art.

      • Philadelphia is another favourite destination in the United States and is around 193 kilometres north-east of Washington DC. No journey is complete without visiting Independence Hall, Liberty Bell and Philadelphia Museum of Art.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.