$103 Find Cheap Flights from San Antonio to District of Columbia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to District of Columbia departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to District of Columbia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to District of Columbia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to District of Columbia.
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Flight Deals

Book Cheap San Antonio to District of Columbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to District of Columbia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to District of Columbia

Wed, Jun 3 - Tue, Jun 9
United Airlines Logo
12:01 pm - 4:28 pm
SAT
-
IAD
3h 27mnonstop
United Airlines Logo
5:43 pm - 10:58 pm
IAD
-
SAT
6h 15m
1 stop
$309United Airlines
Wed, Jun 17 - Wed, Jun 24
United Airlines Logo
6:40 am - 2:22 pm
SAT
-
DCA
6h 42m
1 stop
United Airlines Logo
10:58 am - 3:39 pm
DCA
-
SAT
5h 41m
1 stop
$309United Airlines
Wed, Jun 3 - Tue, Jun 16
Frontier Logo
8:59 pm - 8:12 am
SAT
-
IAD
10h 13m
1 stop
Frontier Logo
9:55 am - 8:11 pm
IAD
-
SAT
11h 16m
1 stop
$310Frontier
Mon, Jun 1 - Mon, Jun 8
Frontier Logo
7:54 pm - 9:58 pm
SAT
-
DCA
25h 04m
1 stop
Frontier Logo
7:00 am - 6:59 pm
DCA
-
SAT
12h 59m
1 stop
$310Frontier
Wed, Jun 3 - Tue, Jun 9
Frontier Logo
7:54 pm - 4:59 pm
SAT
-
DCA
20h 05m
1 stop
Frontier Logo
7:00 am - 6:56 pm
DCA
-
SAT
12h 56m
1 stop
$312Frontier
Tue, Jul 21 - Sun, Jul 26
Southwest Logo
6:10 am - 12:05 pm
SAT
-
DCA
4h 55m
1 stop
Southwest Logo
6:05 am - 10:15 am
DCA
-
SAT
5h 10m
1 stop
$314Southwest
Sat, Oct 10 - Tue, Oct 13
Delta Logo
4:00 pm - 11:02 pm
SAT
-
IAD
6h 02m
1 stop
Delta Logo
5:30 pm - 12:28 am
IAD
-
SAT
7h 58m
1 stop
$319Delta
Fri, Jun 26 - Tue, Jun 30
Delta Logo
4:00 pm - 10:59 pm
SAT
-
DCA
5h 59m
1 stop
Delta Logo
1:42 pm - 8:41 pm
DCA
-
SAT
7h 59m
1 stop
$319Delta
Wed, May 27 - Wed, Sep 2
American Airlines Logo
6:15 am - 10:34 am
SAT
-
DCA
3h 19mnonstop
American Airlines Logo
6:15 pm - 8:56 pm
DCA
-
SAT
3h 41mnonstop
$323American Airlines
Wed, Jun 17 - Mon, Jun 22
Southwest Logo
12:20 pm - 6:55 pm
SAT
-
DCA
5h 35m
1 stop
Southwest Logo
6:15 am - 10:25 am
DCA
-
SAT
5h 10m
1 stop
$324Southwest
Booking Insights

KAYAK's insights & trends for San Antonio to District of Columbia flights

Get data-powered insights and trends into flights from San Antonio to District of Columbia to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Antonio to District of Columbia?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Antonio to District of Columbia departing in July.

What is the cheapest San Antonio to District of Columbia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to District of Columbia from San Antonio found in the last 72 hours was to Washington, D.C., at $309 round-trip. The most popular route is from San Antonio (SAT) to Washington, D.C. Dulles Intl Airport (IAD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $309.

What is the cheapest time of day to fly to District of Columbia?

The average price for all round-trip flights from San Antonio to District of Columbia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to District of Columbia is generally in the morning, when round-trip flights cost $459 on average. Morning departures are around 35% cheaper than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the evening, which is peak travel time and where the average cost of a ticket is $708.

Can I save money by flying with a layover from San Antonio to District of Columbia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $387, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from San Antonio to District of Columbia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to District of Columbia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Antonio to District of Columbia is June, when tickets cost $52 (return) on average. On the other hand, the most expensive months are March and January, when the average cost of round-trip tickets is $196 and $185 respectively.

What’s the cheapest day of the week to fly from San Antonio to District of Columbia?

The average price of all round-trip flights from San Antonio to District of Columbia clicked on KAYAK for each day over the last 12 months.

For San Antonio to District of Columbia, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from District of Columbia back to San Antonio, the best deals are generally found on Thursday, with Sunday being the most expensive.

How far in advance should I book a flight from San Antonio to District of Columbia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Antonio to District of Columbia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Antonio to District of Columbia, you should book around 4 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$103
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from San Antonio to Washington Dulles Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from San Antonio to District of Columbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Antonio to District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to District of Columbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Antonio to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to District of Columbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Antonio to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to District of Columbia

  • Looking for a cheap flight? 25% of our users found tickets from San Antonio to the following destinations at these prices or less: Washington, D.C. $288 one-way - $389 round-trip

Reviews of the top 5 airlines serving from San Antonio to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to District of Columbia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Antonio to District of Columbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4299 reviews
8.0Comfort
8.1Boarding
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

2.0 MediocreAnonymous, May 2026
MCO - MDW
Read more Southwest reviews

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Plane was late. Zero service for 2+ hour flight and it was not that bumpy.

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

My bags were misplaced!!! Im in a foreign country with no bags

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

Everything you need to know for your flight from San Antonio to District of Columbia

Information on your arrival and departure airports