WAS - EAS

$561 Find Cheap Flights from Washington, D.C. to San Sebastian

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to San Sebastian departing on 10/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Sebastian

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Sebastian, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Sebastian, as well as popular online travel agencies
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Cheap Flights from Washington, D.C. to San Sebastian (WAS-EAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to San Sebastian 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 Washington, D.C. to San Sebastian

Wed, Oct 8 - Fri, Oct 17
Iberia Logo
4:35 pm - 8:40 amIAD-EAS
10h 05m1 stop
Iberia Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$561Iberia
Find Deal
Sun, Oct 5 - Wed, Oct 15
Iberia Logo
4:35 pm - 8:40 amIAD-EAS
10h 05m1 stop
Iberia Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$567Iberia
Find Deal
Tue, Oct 7 - Tue, Oct 14
Iberia Logo
10:45 pm - 8:40 amIAD-EAS
27h 55m2 stops
Iberia Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$571Iberia
Find Deal
Sun, Oct 5 - Mon, Oct 20
Iberia Logo
4:35 pm - 1:00 pmIAD-EAS
14h 25m1 stop
Iberia Logo
9:30 pm - 3:00 pmEAS-IAD
23h 30m1 stop
$577Iberia
Find Deal
Thu, Oct 9 - Thu, Oct 16
Iberia Logo
4:35 pm - 8:40 amIAD-EAS
10h 05m1 stop
Iberia Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$617Iberia
Find Deal
Wed, Oct 8 - Fri, Oct 17
American Airlines Logo
10:11 am - 8:40 amDCA-EAS
16h 29m2 stops
American Airlines Logo
1:40 pm - 10:55 pmEAS-DCA
15h 15m2 stops
$730American Airlines
Find Deal
Mon, Aug 4 - Sun, Aug 10
 Logo
10:40 pm - 8:40 amIAD-EAS
28h 00m2 stops
 Logo
9:30 pm - 8:10 pmEAS-IAD
28h 40m2 stops
Sun, Aug 24 - Sat, Aug 30
 Logo
5:45 pm - 8:50 pmIAD-EAS
21h 05m2 stops
 Logo
5:45 pm - 3:20 pmEAS-IAD
27h 35m2 stops
Sun, Aug 17 - Fri, Aug 22
American Airlines Logo
8:27 am - 8:40 amDCA-EAS
18h 13m2 stops
American Airlines Logo
9:20 am - 8:16 pmEAS-DCA
16h 56m2 stops
$1,380American Airlines
Find Deal
Sun, Jul 27 - Sun, Aug 3
British Airways Logo
10:15 pm - 2:05 pmDCA-EAS
33h 50m2 stops
British Airways Logo
1:40 pm - 11:11 pmEAS-DCA
39h 31m2 stops
$1,832British Airways
Find Deal
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KAYAK's insights & trends for Washington, D.C. to San Sebastian flights

Get data-powered insights and trends into flights from Washington, D.C. to San Sebastian to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington, D.C. to San Sebastian?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to San Sebastian were found on Iberia ($561) and American Airlines ($730).

Good to know

Cheapest flight$561
Flight from Washington Dulles Airport to San Sebastian

When to book flights from Washington, D.C. to San Sebastian

Are your dates flexible? Find out the best times to travel from Washington, D.C. to San Sebastian based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to San Sebastian

  • What is the cheapest flight from Washington, D.C. to San Sebastian?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to San Sebastian was $721 for a one-way ticket and $561 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and San Sebastian?

    Yes, you’ll need a passport to travel to San Sebastian from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to San Sebastian?

    On your way to San Sebastian, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at San Sebastián.

  • Which aircraft models fly most regularly from Washington, D.C. to San Sebastian?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to San Sebastian?

    oneworld is the only airline alliance operating flights between Washington, D.C. and San Sebastian.

  • Which is the best airline for flights from Washington, D.C. to San Sebastian, American Airlines or Iberia?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to San Sebastian are American Airlines and Iberia. With an average price for the route of $972 and an overall rating of 7.2, American Airlines is the most popular choice. Iberia is also a great choice for the route, with an average price of $1,110 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Washington, D.C. to San Sebastian?

    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 Washington, D.C. to San Sebastian.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to San Sebastian?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Sebastian from Washington, D.C. 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 Washington, D.C. to San Sebastian?

    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 to San Sebastian with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to San Sebastian?

    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 to San Sebastian from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Washington, D.C. to San Sebastian

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to San Sebastian. 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 Washington, D.C. to San Sebastian? 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.
7.2
American AirlinesOverall score based on 10000 reviews
6.5Food
8.0Crew
7.5Boarding
7.2Comfort
6.9Entertainment
Airline reviews

No entertainment yatem in flight at seat 51H. Would not shut down either leaving a self moving and openin and changing menus with changes in colors,images brightness levels sort of the type when you get sleep deprivation and image overload when being tortured during an interrogation. 8 hours worth of it. Unable to place backpack underneath seat on that chair. One female stewardess was excellent as she gave up her carryon's space for my backpack but the rest of the iberia crew were very sharp an chtting during the whole flight. The plane did not have hot water so nobody had coffee nor tea. The plane was not up to par to be flying.

2.0 MediocreFrancisco, May 2025MIA - MAD
Read more American Airlines reviews

No entertainment yatem in flight at seat 51H. Would not shut down either leaving a self moving and openin and changing menus with changes in colors,images brightness levels sort of the type when you get sleep deprivation and image overload when being tortured during an interrogation. 8 hours worth of it. Unable to place backpack underneath seat on that chair. One female stewardess was excellent as she gave up her carryon's space for my backpack but the rest of the iberia crew were very sharp an chtting during the whole flight. The plane did not have hot water so nobody had coffee nor tea. The plane was not up to par to be flying.

Pitch was very small. Knees were on the seat back in front of me.

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Good experience but the snacks are not gluten free, so I cannot eat them.

Standard. No different than a discount carrier on a short trip.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

I blame kayak for my last trip to dca. Kayak cancelled my direct flight and put on a one stop flight and made lost whole day from my vacation and had not even refunded my ticket.

Not having to check carry on bags when plane wasn’t full. (The told us it was)

Service and food were excellent, could have been more info in English.

I was in business class for the 8 hour flight where: 1. The WiFi did not work 2. The entertainment system did not work 3. We were told there were no hot drinks for the entire flight

I had an issue with the name on my ticket vs my passport name. I was very upset that the Iberia ticket clerk had no authorization to help me and I was left to fix it. It took 19 calls of persons promising to accomplish and not doing anything before I reached someone who helped me in 10 minutes. Two of them even hung up on me. I missed my original flight because of this. Terrible customer service.

Flight boarded three hours late for no reason other than someone made a huge error in crew scheduling. We missed our connecting flight in Madrid and got zero help from American or Iberian airlines on rebooking. We had to pay for a car to take us to the Madrid train station and pay for train tickets to Santiago. We never used our booked flight to Santiago. American claims I can submit the expenses but they are not obligated to cover them. Very frustrating.

Flight delayed Service could be better Iberia staff are not really friendly

They cancelled the flight)(they said bad weather but many other flights took off) and made us wait 5 hours in line to figure out what to do. We ended up making a new flight the next day on another airlines...I hope they honor giving us our money back

Flight from Costa Rica to Madrid was excellent. Good food and service. The flight from Madrid to Brussels was very poor . No food , no entertainment, no usb … Total package was quite expensive so you should give same service on the second flight

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

business class food was pretty average otherwise it was a good experience

Everything you need to know for your flight from Washington, D.C. to San Sebastian

Information on your arrival and departure airports

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