Cheap flight tickets from San Antonio International to Washington Ronald Reagan

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Flight deals from San Antonio International to Washington Ronald Reagan

Looking for a cheap last-minute deal or the best return flight from San Antonio International Airport to Washington Ronald Reagan Airport? If you want to travel next month, return fares start from RM632. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Antonio International to Washington Ronald Reagan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Antonio International to Washington Ronald Reagan flights are currently cheapest in May.

Direct flights from San Antonio International to Washington Ronald Reagan

San Antonio to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundRM337
Cheapest month to flyMay
Average flight time3 hrs, 19 mins
Most popular airlineAmerican Airlines
Average flights per week9

Finding cheap flights from San Antonio International to Washington Ronald Reagan: Frequently asked questions

The best price we found for a return flight from San Antonio International to Washington Ronald Reagan is RM632. 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.
3 hours and 19 minutes is the average flight time from San Antonio International to Washington Ronald Reagan.
American Airlines flies direct from San Antonio International to Washington Ronald Reagan.
As of April 2026, there are 9 flights per week flying from San Antonio International to Washington Ronald Reagan.
The cheapest month to fly from San Antonio International to Washington Ronald Reagan is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Antonio International Airport to Washington Ronald Reagan Airport on Wednesday, 20 May 2026.
Yes – the average flight time is 3 hours and 19 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 offers the cheapest flight tickets to Washington Ronald Reagan.

Flying from San Antonio International Airport (SAT) to Ronald Reagan National Airport (DCA): what you need to know

  • Washington DC's timezone is UTC-4, making Washington DC one hour ahead of San Antonio.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to catch your SAT to DCA flight.

  • Flying during a peak time such as July? School holidays and other high seasons can mean longer lines and delays at airport checkpoints. Be extra cautious and arrive up to four hours before an international flight and two hours before a domestic departure.

  • If you'd like to include a stop along the way, simply deselect 'Direct flights only' when searching for your ticket from San Antonio International Airport to Ronald Reagan National Airport. Here are the top stopovers between SAT and DCA:

    • William P. Hobby Airport

    • Lambert-St. Louis International Airport

    • George Bush Intercontinental Airport

How to find the cheapest flights from San Antonio International Airport (SAT) to Ronald Reagan National Airport (DCA)

  • Currently, RM337 is the lowest price we've seen for a one-way San Antonio International Airport to Ronald Reagan National Airport flight. The best price for a return ticket is RM632. Keep in mind that fares can change due to demand at the time of booking.

  • To find cheap tickets from SAT to DCA, book early. Airlines tend to offer lower fares when flights are first made available.

  • The 'Whole month' search function shows you the cheapest flights from San Antonio International Airport to Ronald Reagan National Airport across the entire month. It's a good way to find a bargain if your travel dates aren't set in stone.

  • Landing cheap flights from SAT to DCA is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when there's a better deal.

  • Tailor your trip using filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from San Antonio International Airport to Ronald Reagan National Airport.

Handy information about San Antonio International Airport (SAT)

  • SAT is located at 9800 Airport Boulevard.

  • San Antonio International Airport scores high marks for its on-time performance. 83.17% of flights that depart SAT arrive at their destination as scheduled.

  • To get to San Antonio International Airport from central San Antonio, it takes around 20 minutes if you're going by car. Of course, this depends on traffic. It's approximately 19 kilometres from the airport to the city centre.

  • Planning to take public transport? Expect a journey time of around 1 hour 30 minutes.

  • Catching an early flight from San Antonio International Airport to Ronald Reagan National Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by picking one of these hotels close to SAT:

Arriving at Ronald Reagan National Airport (DCA)

Getting from Ronald Reagan National Airport (DCA) to central Washington DC

  • You'll find DCA at 1 Aviation Circle.

  • Ronald Reagan National Airport is approximately 8 kilometres from central Washington DC. Driving there takes about 15 minutes.

  • Travelling to the centre by public transport takes around 45 minutes.

When to fly to Ronald Reagan National Airport (DCA)

  • February is the most popular month for flights from San Antonio International Airport to Ronald Reagan National Airport. To skip the crowds, visit Washington DC in May.

  • Before locking in your flight from San Antonio International Airport to Ronald Reagan National Airport, consider the type of weather you enjoy. July is the warmest month in Washington DC, with temperatures ranging from 19ºC (66ºF) to 33ºC (91ºF).

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

Explore more of United States

  • Washington DC has loads to offer, but there are so many other parts of United States you'll want to see. Around 322 kilometres north-east of Washington DC, a visit to New York will keep you on the move. Start with popular sights like Statue of Liberty, Central Park and Empire State Building.

  • If there's time to check out another major destination in United States, consider Philadelphia, about 193 kilometres north-east of Washington DC. Liberty Bell, Independence Hall and Philadelphia Museum of Art are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.