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San Sebastian

$778+ Cheap flights from Denver (DEN) to San Sebastian (EAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EAS
févr. 26 — mars 51
jeu. 2/26
jeu. 3/5
1 adult, Economy
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Cheap flight deals from Denver to San Sebastian

Cheapest flights from Denver to San Sebastian
Explore the most affordable flight options available from Denver to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 27, 2026.

This Expedia deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/105:44 pm
DEN
-
EAS
2 stops30h 56m
Iberia
dim. 9/209:30 pm
EAS
-
DEN
2 stops30h 53m
Iberia
Deal found 1/25$778
This Travelocity deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/248:00 am
DEN
-
EAS
2 stops21h 00m
Iberia
dim. 3/19:30 pm
EAS
-
DEN
2 stops33h 07m
Iberia
Deal found 1/25$853
This Iberia deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/1810:20 am
DEN
-
EAS
2 stops18h 40m
Iberia
dim. 2/221:40 pm
EAS
-
DEN
2 stops41h 00m
Iberia
Deal found 1/24$1,069
This Iberia deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/304:25 pm
DEN
-
EAS
2 stops20h 25m
Iberia
sam. 6/139:30 pm
EAS
-
DEN
2 stops28h 45m
Iberia
Deal found 1/25$1,191
This Ovago deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 3/1312:19 pm
DEN
-
EAS
2 stops17h 41m
Iberia
ven. 3/209:20 am
EAS
-
DEN
2 stops20h 17m
Iberia
Deal found 1/26$1,739
This Mytrip deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/247:20 pm
DEN
-
EAS
3 stops34h 10m
Multiple Airlines
dim. 3/12:05 pm
EAS
-
DEN
3 stops33h 55m
Multiple Airlines
Deal found 1/25$2,050
This Mytrip deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 3/138:20 pm
DEN
-
EAS
3 stops34h 10m
Multiple Airlines
ven. 3/202:05 pm
EAS
-
DEN
3 stops35h 30m
Multiple Airlines
Deal found 1/26$3,122

Find flight deals from Denver to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to San Sebastian (EAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated janvier 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$853
(Travelocity)
Provider with most accurate pricing for Denver Intl-San Sebastián flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-San Sebastián flights.
Search Deals
From Denver Intl to San Sebastián
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to San Sebastian that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated janvier 27, 2026.
Use the filters below to find and compare flights from Denver to San Sebastian that are best for you.

Fly from

Denver

Fly to

San Sebastian

Route

Depart

Return

Price

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

mar. 2/24

8:00 am-1:00 pm

2 stops21h 00m

San Sebastián

dim. 3/1

9:30 pm-10:37 pm

2 stops33h 07m

$853

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

mer. 2/18

10:20 am-1:00 pm

2 stops18h 40m

San Sebastián

dim. 2/22

1:40 pm-10:40 pm

2 stops41h 00m

$1,069

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

sam. 5/30

4:25 pm-8:50 pm

2 stops20h 25m

San Sebastián

sam. 6/13

9:30 pm-6:15 pm

2 stops28h 45m

$1,191

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

ven. 3/13

12:19 pm-1:00 pm

2 stops17h 41m

San Sebastián

ven. 3/20

9:20 am-10:37 pm

2 stops20h 17m

$1,739

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

mar. 2/24

7:20 pm-1:30 pm

3 stops34h 10m

San Sebastián

dim. 3/1

2:05 pm-4:00 pm

3 stops33h 55m

$2,050

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

ven. 3/13

8:20 pm-1:30 pm

3 stops34h 10m

San Sebastián

ven. 3/20

2:05 pm-6:35 pm

3 stops35h 30m

$3,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Compare providers for flights from Denver to San Sebastian

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to San Sebastian in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-San Sebastian flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-San Sebastian flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-San Sebastian flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-San Sebastian flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-San Sebastian flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to San Sebastian

What is the cheapest month to book a flight from Denver to San Sebastian?

Currently, February is the cheapest month in which you can book a flight from Denver to San Sebastian (average of $530). Flying from Denver to San Sebastian in December is currently the most expensive (average of $1,104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Denver to San Sebastian. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Denver to San Sebastian?

    For as low as $853, Iberia can have you in San Sebastian from Denver in 21h. Denver and San Sebastian are separated by a distance of 4944 mi.

  • Can I find deals for flights from Denver to San Sebastian that include hotel bookings?

    Yes. In addition to deals on Denver to San Sebastian flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to San Sebastian?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to San Sebastian.

  • Can I find deals for business class flights from Denver to San Sebastian?

    Yes. Cheapflights offers flight deals from Denver to San Sebastian by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to San Sebastian?

    Currently, February is the cheapest month in which you can book a flight from Denver to San Sebastian (average of $530). Flying from Denver to San Sebastian in December is currently the most expensive (average of $1,104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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