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San Sebastian

$823+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EAS
Jan 12 — Jan 191
Mon 1/12
Mon 1/19
1 adult, Economy
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Cheap flight deals from Denver to San Sebastian

Best flights from Denver to San Sebastian
Discover carefully curated flight deals from Denver to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 13, 2025.

This Expedia deal was found by Cheapflights users on 12/12. 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.
Mon 1/265:25 pmDEN - EAS
2 stops31h 15mIberia
Mon 2/29:30 pmEAS - DEN
2 stops22h 32mIberia
Deal found 12/12$823
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/147:55 amDEN - EAS
2 stops16h 45mAmerican Airlines
Wed 3/119:20 amEAS - DEN
2 stops20h 21mAmerican Airlines
Deal found 12/11$831
This Mytrip deal was found by Cheapflights users on 12/12. 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.
Mon 1/2611:15 amDEN - EAS
2 stops18h 15mMultiple Airlines
Mon 2/22:05 pmEAS - DEN
3 stops35h 30mMultiple Airlines
Deal found 12/12$1,321
This Iberia deal was found by Cheapflights users on 12/10. 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.
Thu 1/298:30 amDEN - EAS
2 stops20h 30mIberia
Mon 2/29:30 pmEAS - DEN
2 stops22h 32mIberia
Deal found 12/10$1,109

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 December 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$823
(Expedia)
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.
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From Denver Intl to San Sebastián
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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 December 13, 2025.
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

Mon 1/26

5:25 pm-8:40 am

2 stops31h 15m

San Sebastián

Mon 2/2

9:30 pm-12:02 pm

2 stops22h 32m

$823

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Wed 1/14

7:55 am-8:40 am

2 stops16h 45m

San Sebastián

Wed 3/11

9:20 am-10:41 pm

2 stops20h 21m

$831

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Thu 1/29

8:30 am-1:00 pm

2 stops20h 30m

San Sebastián

Mon 2/2

9:30 pm-12:02 pm

2 stops22h 32m

$1,109

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Mon 1/26

11:15 am-1:30 pm

2 stops18h 15m

San Sebastián

Mon 2/2

2:05 pm-5:35 pm

3 stops35h 30m

$1,321

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-San Sebastian flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 June is currently the most expensive (average of $1,163). 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 $831, Iberia can have you in San Sebastian from Denver in 16h 45m. Denver and San Sebastian are separated by a distance of 4944 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 June is currently the most expensive (average of $1,163). 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.

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