IAD - EAS

$553 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl to San Sebastian departing on 9/24. 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

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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Flights Deals

Cheap Flights from Dulles Intl to San Sebastian

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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.

Recent round-trip flight deals from Dulles Intl to San Sebastian

KAYAK's recommended round-trip deals from the most popular airlines that fly from Dulles Intl to San Sebastian.
Discover the best prices for you by selecting your travel dates on KAYAK.
Iberia Logo
4:35 pm - 1:00 pmIAD-EAS
14h 25m1 stop
Iberia Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$553Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28
Iberia Logo
4:35 pm - 8:40 amIAD-EAS
10h 05m1 stop
Iberia Logo
9:30 pm - 10:45 amEAS-IAD
43h 15m2 stops
$620Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28
Iberia Logo
4:35 pm - 1:00 pmIAD-EAS
14h 25m1 stop
Iberia Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$656Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28
Iberia Logo
4:35 pm - 1:00 pmIAD-EAS
14h 25m1 stop
Iberia Logo
9:30 pm - 10:45 amEAS-IAD
43h 15m2 stops
$700Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28
American Airlines Logo
4:35 pm - 8:40 amIAD-EAS
10h 05m1 stop
American Airlines Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$751American Airlines
Find Deal
Sat, Sep 6 - Sat, Sep 13
American Airlines Logo
5:08 am - 8:40 amIAD-EAS
21h 32m2 stops
American Airlines Logo
9:20 am - 3:00 pmEAS-IAD
11h 40m1 stop
$756American Airlines
Find Deal
Sat, Sep 6 - Sat, Sep 13
Iberia Logo
5:36 pm - 8:40 amIAD-EAS
33h 04m2 stops
Iberia Logo
9:30 pm - 10:45 amEAS-IAD
43h 15m2 stops
$798Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28
 Logo
5:12 pm - 8:30 amIAD-EAS
33h 18m3 stops
 Logo
5:55 pm - 8:50 pmEAS-IAD
32h 55m2 stops
$1,091
Find Deal
Wed, Jun 4 - Wed, Jun 11
 Logo
5:12 pm - 8:30 amIAD-EAS
33h 18m3 stops
 Logo
5:55 pm - 3:20 pmEAS-IAD
27h 25m3 stops
$1,154
Find Deal
Wed, Jun 4 - Wed, Jun 11
Avianca Logo
3:25 pm - 8:50 pmIAD-EAS
47h 25m2 stops
Avianca Logo
9:20 am - 2:00 pmEAS-IAD
34h 40m2 stops
$9,921Avianca
Find Deal
Thu, Oct 16 - Sun, Oct 19
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KAYAK's insights & trends for Dulles Intl to San Sebastian flights

Get data-powered insights and trends into flights from Dulles Intl 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 Dulles Airport 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 Dulles Airport to San Sebastian were found on Iberia ($553) and American Airlines ($751).

Good to know

Cheapest flight$553
Flight from Washington Dulles Airport to San Sebastian

When to book flights from Dulles Intl to San Sebastian

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Washington Dulles Airport to San Sebastian flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to San Sebastian was $938 for a one-way ticket and $553 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and San Sebastian?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in San Sebastian.

  • Which aircraft models fly most regularly from Washington Dulles Airport to San Sebastian?

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

  • Which airline alliances offer flights from Washington Dulles Airport to San Sebastian?

    oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and San Sebastian, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to San Sebastian.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and EAS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Dulles Intl 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 Dulles Intl 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.
7.0
IberiaOverall score based on 2698 reviews
7.1Boarding
6.7Comfort
6.3Food
6.6Entertainment
7.6Crew
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2025SJO - MAD
Read more Iberia reviews

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 OK , except the plane left more than an hour late so I couldn’t participate in an excursion I had that morning in Brcelona

Flight from Madrid to Dakar had no onboard entertainment for a business class. Not even a single screen . That was disappointing. The WiFi only worked for the first 45 mins of the flight.

I paid to upgrade to Business Class. The queue to check in at the Business Class aisle was full of people without Business Class tickets, the fast-track immigration line was “closed” but the representative opened it up for his friends, regardless (there was a lot of fist-bumping), and the lounge was an absolute mess…..4 staff sitting playing with their phones while every table had dirty plates and glasses waiting to be cleared…..and the least said about the rude lady on the reception desk at the lounge , the better!

Great flight, short and good attention. Didn't took any food so can't say thing about it

A 13 hour flight with no food apart from what they offered from a menu you had to pay for. On top of that, there were no blankets, so during the flight when the cabin temperature dropped, everyone was very cold. Neither of these things were highlighted at the time of booking. This is the worst long-haul flight I’ve ever encountered.

online check-in was horrible and didn't work either way

Horrible. Paid for seats for my family. Iberia changed planes and never notified us that the seats we paid extra for did not even exist on the plane. We were randomly placed on the plane. Thankfully, we were seated together. Upon boarding, my youngest daughter was pulled from the line and they just arbitrarily changed her seat 7 rows back from the rest of the family. I had to wait at the gate while they tried to see us back together. One of the most uncomfortable small spaces on a plane I’ve ever experienced. When I called Iberia, they first told me that no mistake was made that the plane was never changed. Yet my receipt for my paid seats were for rows that did not even exist on this type of plane we were getting on. They said that they would reimburse my money and I would get an email, but I’ve never received any information or emails regarding a refund for the seats that I had paid extra for. Then when we arrived in Madrid, one of the pieces of luggage that we had checked in was damaged to the point that the handle that was stowed in to the luggage was broken off by the crew members handling the luggage. The crew on the plane was very nice, but as far as the rest of the experience, I would be very hesitant to ever use Iberia again.

Everything you need to know for your flight from Dulles Intl to San Sebastian

Information on your arrival and departure airports

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