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San Sebastian

$722+ Cheap flights from Colorado 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EAS
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Colorado to San Sebastian

Keep the following information in mind while searching for Colorado to San Sebastian flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$722
(American Airlines)
Provider with most accurate pricing for Denver Intl-San Sebastián flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-San Sebastián flights.
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From Colorado to San Sebastián
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Find flight deals from Colorado to San Sebastian

Best flights from Colorado to San Sebastian
Discover carefully curated flight deals from Colorado to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 26, 2025.

This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/95:25 pmDEN - EAS
2 stops19h 25mAmerican Airlines
Fri 1/169:20 amEAS - DEN
2 stops21h 56mAmerican Airlines
Deal found 11/25$722
This Expedia deal was found by Cheapflights users on 11/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/85:25 pmDEN - EAS
2 stops43h 25mIberia
Thu 1/159:30 pmEAS - DEN
2 stops50h 00mIberia
Deal found 11/24$934
This Mytrip deal was found by Cheapflights users on 11/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2212:15 pmDEN - EAS
2 stops21h 05mMultiple Airlines
Thu 5/286:00 pmEAS - DEN
3 stops32h 55mMultiple Airlines
Deal found 11/24$1,151
This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/112:45 pmDEN - EAS
2 stops22h 05mAmerican Airlines
Sun 2/159:20 amEAS - DEN
2 stops34h 02mAmerican Airlines
Deal found 11/25$931
This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:15 amDEN - EAS
2 stops17h 25mAmerican Airlines
Fri 5/229:20 amEAS - DEN
2 stops22h 13mAmerican Airlines
Deal found 11/25$941
This Mytrip deal was found by Cheapflights users on 11/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2512:15 pmDEN - EAS
3 stops36h 05mMultiple Airlines
Sun 5/315:55 pmEAS - DEN
3 stops33h 00mMultiple Airlines
Deal found 11/24$1,224
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Wed 5/64:40 pmDEN - EAS
3 stops31h 40mMultiple Airlines
Fri 5/225:55 pmEAS - DEN
3 stops32h 25mMultiple Airlines
Deal found 11/25$1,225
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Fri 1/911:15 amDEN - EAS
2 stops18h 15mMultiple Airlines
Fri 1/162:05 pmEAS - DEN
3 stops35h 30mMultiple Airlines
Deal found 11/25$1,245
This Mytrip deal was found by Cheapflights users on 11/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/244:40 pmDEN - EAS
3 stops31h 40mMultiple Airlines
Sat 5/305:55 pmEAS - DEN
3 stops32h 25mMultiple Airlines
Deal found 11/24$1,307

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 November 26, 2025.
Use the filters below to find and compare flights from Colorado to San Sebastian that are best for you.

Fly from

Colorado

Fly to

San Sebastian

Route

Depart

Return

Price

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Fri 1/9

5:25 pm-8:50 pm

2 stops19h 25m

San Sebastián

Fri 1/16

9:20 am-11:16 pm

2 stops21h 56m

$722

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Wed 2/11

2:45 pm-8:50 pm

2 stops22h 05m

San Sebastián

Sun 2/15

9:20 am-11:22 am

2 stops34h 02m

$931

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Thu 1/8

5:25 pm-8:50 pm

2 stops43h 25m

San Sebastián

Thu 1/15

9:30 pm-3:30 pm

2 stops50h 00m

$934

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Wed 5/6

7:15 am-8:40 am

2 stops17h 25m

San Sebastián

Fri 5/22

9:20 am-11:33 pm

2 stops22h 13m

$941

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Fri 5/22

12:15 pm-5:20 pm

2 stops21h 05m

San Sebastián

Thu 5/28

6:00 pm-6:55 pm

3 stops32h 55m

$1,151

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Mon 5/25

12:15 pm-8:20 am

3 stops36h 05m

San Sebastián

Sun 5/31

5:55 pm-6:55 pm

3 stops33h 00m

$1,224

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Wed 5/6

4:40 pm-8:20 am

3 stops31h 40m

San Sebastián

Fri 5/22

5:55 pm-6:20 pm

3 stops32h 25m

$1,225

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Fri 1/9

11:15 am-1:30 pm

2 stops18h 15m

San Sebastián

Fri 1/16

2:05 pm-5:35 pm

3 stops35h 30m

$1,245

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Sun 5/24

4:40 pm-8:20 am

3 stops31h 40m

San Sebastián

Sat 5/30

5:55 pm-6:20 pm

3 stops32h 25m

$1,307

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Thu 3/19

2:40 pm-8:40 am

2 stops59h 00m

$1,126

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Best time to book a flight from Colorado to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Colorado 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 Colorado to San Sebastian

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

Currently, February is the cheapest month in which you can book a flight from Colorado to San Sebastian (average of $530). Flying from Colorado to San Sebastian in May is currently the most expensive (average of $1,191). 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.

What is the cheapest time of day to fly from CO to EAS?

Find hourly flight availability from Colorado to San Sebastian. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Colorado to San Sebastian in the afternoon. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight in the morning.

Related info for your journey

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

  • What airport do you fly into for flights to San Sebastian from Colorado?

    Most people fly into San Sebastián (EAS) if they book a flight to San Sebastian from Colorado. San Sebastián is conveniently located just 9.7 mi from San Sebastian’s city center.

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

    There are many flights that can get you from Colorado to San Sebastian in 19h 25m. Fly via American Airlines or Iberia to get the fastest option. There are 4944 mi between Colorado and San Sebastian. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Colorado 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 Colorado to San Sebastian?

    Currently, February is the cheapest month in which you can book a flight from Colorado to San Sebastian (average of $530). Flying from Colorado to San Sebastian in May is currently the most expensive (average of $1,191). 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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Top airline flying from Colorado to San Sebastian

Discover the top airline that operate flights from Colorado to San Sebastian. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$873Average$1,586FlexibilityNo cancel feeOn-time77%

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