DEN - EAS

$830 Find Cheap Flights from Denver to San Sebastian - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$830
Typical prices: $967-$1,121
Multiple Airlines
Thu 3/1Sat 3/31
DEN - EAS • 2 stops
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Booking Insights
Flight Deals

Cheap Flights from Denver to San Sebastian (DEN-EAS)

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

Recent round-trip flight deals from Denver to San Sebastian

Mon, Mar 1 - Wed, Mar 31
Multiple Airlines Logo
5:01 pm - 4:55 pmDEN  Denver Intl-EAS San Sebastián
15h 54m2 stops London Heathrow Madrid Barajas
Multiple Airlines Logo
1:40 pm - 11:49 pmEAS  San Sebastián-DEN Denver Intl
18h 09m2 stops Madrid Barajas Dallas/Fort Worth
$830Multiple Airlines
Mon, Mar 1 - Wed, Mar 31
Iberia Logo
7:22 am - 1:00 pmDEN  Denver Intl-EAS San Sebastián
21h 38m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
1:40 pm - 11:49 pmEAS  San Sebastián-DEN Denver Intl
18h 09m2 stops Madrid Barajas Dallas/Fort Worth
$831Iberia
Mon, Mar 1 - Wed, Mar 31
Iberia Logo
7:22 am - 1:00 pmDEN  Denver Intl-EAS San Sebastián
21h 38m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
1:40 pm - 11:49 pmEAS  San Sebastián-DEN Denver Intl
18h 09m2 stops Madrid Barajas Dallas/Fort Worth
$833Iberia
Wed, Apr 21 - Wed, Apr 28
American Airlines Logo
7:00 am - 8:40 amDEN  Denver Intl-EAS San Sebastián
17h 40m2 stops Charlotte Douglas Madrid Barajas
American Airlines Logo
1:40 pm - 11:39 pmEAS  San Sebastián-DEN Denver Intl
17h 59m2 stops Madrid Barajas Dallas/Fort Worth
$834American Airlines
Mon, Dec 7 - Fri, Dec 11
British Airways Logo
10:37 am - 8:50 pmDEN  Denver Intl-EAS San Sebastián
26h 13m2 stops Dallas/Fort Worth Madrid Barajas
British Airways Logo
9:30 pm - 7:54 pmEAS  San Sebastián-DEN Denver Intl
30h 24m2 stops Madrid Barajas Dallas/Fort Worth
$1,451British Airways
Mon, Dec 7 - Fri, Dec 11
British Airways Logo
9:17 am - 1:00 pmDEN  Denver Intl-EAS San Sebastián
19h 43m2 stops Dallas/Fort Worth Madrid Barajas
British Airways Logo
9:30 pm - 10:56 pmEAS  San Sebastián-DEN Denver Intl
33h 26m2 stops Madrid Barajas Dallas/Fort Worth
$1,453British Airways
Mon, Dec 7 - Fri, Dec 11
British Airways Logo
4:23 pm - 1:00 pmDEN  Denver Intl-EAS San Sebastián
36h 37m2 stops Dallas/Fort Worth Madrid Barajas
British Airways Logo
9:30 pm - 7:54 pmEAS  San Sebastián-DEN Denver Intl
30h 24m2 stops Madrid Barajas Dallas/Fort Worth
$1,459British Airways
Mon, Dec 7 - Fri, Dec 11
British Airways Logo
4:23 pm - 1:00 pmDEN  Denver Intl-EAS San Sebastián
36h 37m2 stops Dallas/Fort Worth Madrid Barajas
British Airways Logo
9:30 pm - 7:54 pmEAS  San Sebastián-DEN Denver Intl
30h 24m2 stops Madrid Barajas Dallas/Fort Worth
$1,461British Airways
Booking Insights

Price, demand and travel trends for Denver to San Sebastian flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Denver to San Sebastian?

Iberia ($831) and American Airlines ($834) are the cheapest airlines to fly round-trip from Denver to San Sebastian according to KAYAK data over the last 5 days.

Key details for Denver to San Sebastian flights

Cheapest flight

$830
Round-trip flight from Denver to San Sebastian

When to book flights from Denver to San Sebastian

Are your dates flexible? Find out the best times to travel from Denver 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

Your Denver to San Sebastian flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Denver to San Sebastian?

    Only Economy Class is available on flights from Denver to San Sebastian.

  • Do I need a passport to fly from Denver to San Sebastian?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Denver to San Sebastian changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $830 to $1,461. That means the highest observed fare was about 76% higher than the lowest one.

  • What car rental options are available at San Sebastián Airport (EAS)?

    San Sebastián Airport (EAS) hosts 5 major car rental companies, with daily rates averaging $54 for economy cars. Top options include:

    • Enterprise Rent-A-Car
    • Hertz
    • Alamo
    • Dollar
    • keddy by Europcar

  • Which airports can I use when flying from Denver to San Sebastian?

    Flights from Denver to San Sebastian usually depart from Denver Intl (DEN) and arrive at San Sebastián (EAS).

  • Can I save money by using flexible dates for flights from Denver to San Sebastian?

    Yes. Flexible dates can save you up to 19% on flights from Denver to San Sebastian. Monday is the cheapest departure day at $1,071 round-trip on average, while Friday is the most expensive at $1,308, a difference of $237.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Denver and San Sebastian?

    San Sebastian is 8 hours ahead of Denver (Central European Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San Sebastian?

    Some of the most popular sights in San Sebastian are Playa de Zurriola, Kursaal Palace San Sebastián and Palacio de Miramar. These are among the most viewed places in San Sebastian on KAYAK.

Your guide to booking Denver to San Sebastian flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $1,071, about $237 less than Friday fares (18% savings) based on the last 12 months.

More options for your flight from Denver to San Sebastian

Complete your trip to San Sebastian with a hotel stay or car rental