IAD - EAS

$561 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 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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Flights Deals

Cheap Flights from Dulles Intl to San Sebastian (IAD-EAS)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl 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, Sep 24 - Sun, Sep 28
Iberia Logo
4:35 pm - 8:40 amIAD-EAS
10h 05m1 stop
Iberia Logo
9:30 pm - 3:00 pmEAS-IAD
23h 30m1 stop
$627Iberia
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 - 10:57 amEAS-IAD
43h 27m2 stops
$660Iberia
Find Deal
Thu, Oct 9 - Sun, Oct 19
Iberia Logo
4:35 pm - 8:40 amIAD-EAS
10h 05m1 stop
Iberia Logo
9:30 pm - 3:00 pmEAS-IAD
23h 30m1 stop
$677Iberia
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
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Good to know

Cheapest flight$561
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 $970 for a one-way ticket and $561 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 is the only airline alliance operating flights between Washington Dulles Airport and San Sebastian.

  • 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 2778 reviews
7.7Crew
6.8Comfort
7.1Boarding
6.6Entertainment
6.3Food
Airline reviews

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

6.0 GoodAnonymous, May 2025BOS - MAD
Read more Iberia reviews

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 Dulles Intl to San Sebastian

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