Cheap flights from San Antonio to Washington, D.C. from $63
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Washington, D.C. departing on 7/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Antonio to Washington, D.C.
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Southwest flights from San Antonio to Washington, D.C.
Our best Southwest deals on San Antonio to Washington, D.C. flight tickets
American Airlines flights from San Antonio to Washington, D.C.
Our best American Airlines deals on San Antonio to Washington, D.C. flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from San Antonio to Washington, D.C.
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between San Antonio and Washington, D.C.?
What is the cheapest month to fly to Washington, D.C.?
The month of June is, on average, the cheapest month to fly to Washington, D.C. from San Antonio, with most prices found around $296. If you’re not able to fly to Washington, D.C. in June, then May is your next best option. Flight prices from San Antonio to Washington, D.C. during May average around $305.
What is the cheapest day to depart on your flight to Washington, D.C.?
On average, the least expensive day to fly to Washington, D.C. from San Antonio is on a Thursday. momondo users have found tickets for Thursday departures for as low as $415. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from San Antonio to Washington, D.C. for around $651.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
In the evening is the cheapest time of day to fly from San Antonio to Washington, D.C. when you can find flight prices for as low as $190. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $989. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest San Antonio to Washington, D.C. flight route?
Fly from San Antonio to Baltimore/Washington for the best San Antonio - Washington, D.C. flight prices
How far in advance should I book a flight to Washington, D.C.?
You are more likely to see cheaper flights to Washington, D.C. from San Antonio when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $412 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from San Antonio for as low as $173 on momondo.
What cabin class options are available on San Antonio to Washington, D.C. flights?
There are 4 cabin classes available to choose from on San Antonio to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on San Antonio to Washington, D.C. flights?
No. A direct flight is the cheapest option for a flight between San Antonio to Washington, D.C..
How have San Antonio to Washington, D.C. flight prices changed over time?
As of June 2025, prices for San Antonio to Washington, D.C. flights are approximately 45% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from San Antonio to Washington, D.C.?
Spirit Airlines, Southwest, and American Airlines are the most popular carriers operating from San Antonio to Washington, D.C.
What airlines fly to Washington, D.C.?
United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Washington, D.C. from San Antonio according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 7 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Antonio to Washington, D.C. on average per day?
The number of flights available between San Antonio and Washington, D.C. is 8 per day as of June 2025. The most frequent departure time is 11:00AM, with 65% of daily flights leaving at noon.
How many flights depart from San Antonio to Washington, D.C. on average per week?
As of June 2025, 62 flights take off from San Antonio and land in Washington, D.C. each week. The most common flight departure day for this route is Mon, with 21% of weekly flights taking off on this day.
When to book flights from San Antonio to Washington, D.C.
Cheap San Antonio to Washington, D.C. (SAT to WAS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Antonio to Washington, D.C.
Best Price Found | $63 |
|---|---|
Fastest flight time | 3h 12m |
Direct flights | Every day |
Airports in Washington, D.C. | 3 airports |
How far is San Antonio to Washington, D.C. by plane?
The distance between San Antonio and Washington, D.C. is about 1384.8 mi. A reasonable flight in good conditions will take 3h 15m.
When did momondo last update prices for flights from San Antonio Airport to Washington, D.C.?
Prices for flights from San Antonio Airport to Washington, D.C. are refreshed on a daily basis.
How many operators does momondo search for flights from San Antonio Airport to Washington, D.C.?
As of June 2025, there are 6 operators available to choose from for flights from San Antonio Airport to Washington, D.C..
How old do you have to be to fly from San Antonio Airport to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from San Antonio to Washington, D.C.?
momondo data reveals that the most frequently booked plane model on the route from San Antonio to Washington, D.C. is Boeing 737-900, representing 23.36% of all bookings. The subsequent popular models are Airbus A321-100/200 at 15.70%, Boeing 737 MAX 8 at 9.70%, and Embraer 175 (Enhanced Winglets) at 8.84%.
What is the most popular airline from San Antonio to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Antonio to Washington, D.C. is United Airlines (50% of total bookings). The next most popular airlines are American Airlines (27%), Delta (8%), and Spirit Airlines (7%).
Best airlines flying from San Antonio to Washington, D.C.
Compare and see reviews for airlines that fly from San Antonio to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $76 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $110 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $204 | Free Cancellation | Rating 8.0 4,287 reviews | |||
| PriceFrom $207 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $239 | Free Cancellation | Rating 7.4 8,790 reviews |
Southwest Flights From San Antonio to Washington, D.C.
The lowest priced Southwest flight from San Antonio to Washington, D.C. from the last 72 hours was $204. Generally, Southwest has 7 flights on this route every week with an average price of $426. Southwest is rated 8.0/10 by our users.
United Airlines Flights From San Antonio to Washington, D.C.
Across 8,790 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from San Antonio to Washington, D.C. about 8 times each week, with ticket deals ranging from $239 to $402. Price data is based on momondo searches in the last 72 hours.
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Antonio to Washington, D.C.?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from San Antonio to Washington, D.C. with flexible booking policies on momondo?
Flights from San Antonio to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from San Antonio to Washington, D.C.?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from San Antonio.
I’m not ready to book a flight from San Antonio to Washington, D.C. right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Washington, D.C. from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.