What airlines fly to San Sebastian?

United Airlines, Lufthansa and Iberia are the top three most popular airlines that fly to San Sebastian from Colorado according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 3 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Colorado to San Sebastián Airport?

Prices for flights from Colorado to San Sebastián Airport were last updated today.

How many operators does momondo search for flights from Colorado to San Sebastián Airport?

There is 1 operator available for flights from Colorado to San Sebastián Airport as of August 2025.

How old do you have to be to fly from Colorado to San Sebastián Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to San Sebastián Airport.

What documentation or ID do you need to fly to San Sebastián Airport?

The travel and health documents you'll need for your trip to San Sebastián Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Sebastián Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$834 Cheap Flights from Colorado to San Sebastian in 2025

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Find the cheapest flights from Colorado to San Sebastian

Round-trip

One-way

Cheap round-trip flights

7:16 am - 1:00 pmDEN-EAS

21h 44m2 stops

9:20 am - 6:33 pmEAS-DEN

17h 13m2 stops

$985Iberia

Find Deal

Mon, Sep 15 - Mon, Sep 22

5:25 pm - 8:50 pmDEN-EAS

19h 25m2 stops

1:40 pm - 10:22 pmEAS-DEN

40h 42m2 stops

$1,023Iberia

Find Deal

Fri, Nov 7 - Tue, Nov 11

12:33 pm - 1:00 pmDEN-EAS

16h 27m2 stops

9:30 pm - 3:30 pmEAS-DEN

26h 00m2 stops

$1,057Iberia

Find Deal

Tue, Nov 4 - Sun, Nov 30

4:20 pm - 8:40 amDEN-EAS

32h 20m3 stops

2:05 pm - 4:00 pmEAS-DEN

33h 55m2 stops

$1,148

Find Deal

Tue, Nov 4 - Sun, Nov 30

12:27 pm - 1:00 pmDEN-EAS

16h 33m2 stops

9:20 am - 10:22 pmEAS-DEN

21h 02m2 stops

$1,180American Airlines

Find Deal

Fri, Nov 7 - Tue, Nov 11

7:22 am - 1:00 pmDEN-EAS

21h 38m2 stops

9:20 am - 10:22 pmEAS-DEN

21h 02m2 stops

$1,181American Airlines

Find Deal

Fri, Nov 7 - Tue, Nov 11

7:20 pm - 1:30 pmDEN-EAS

34h 10m3 stops

2:05 pm - 6:05 pmEAS-DEN

36h 00m3 stops

$1,430

Find Deal

Tue, Nov 4 - Sun, Nov 30

12:20 am - 1:00 pmDEN-EAS

28h 40m2 stops

9:30 pm - 7:55 pmEAS-DEN

30h 25m2 stops

$1,549

Find Deal

Mon, Nov 3 - Sun, Nov 30

American Airlines flights from Colorado to San Sebastian

Our best American Airlines deals on Colorado to San Sebastian flight tickets

American Airlines

Nov 7

DEN12:27 pmDenver Intl

16h 33m

2 stops

EAS1:00 pmSan Sebastián

Nov 11

EAS9:20 amSan Sebastián

21h 02m

2 stops

DEN10:22 pmDenver Intl

$1,180

Find similar

American Airlines

Nov 7

DEN7:22 amDenver Intl

21h 38m

2 stops

EAS1:00 pmSan Sebastián

Nov 11

EAS9:20 amSan Sebastián

21h 02m

2 stops

DEN10:22 pmDenver Intl

$1,181

Find similar

Iberia flights from Colorado to San Sebastian

Our best Iberia deals on Colorado to San Sebastian flight tickets

Iberia

Sep 15

DEN7:16 amDenver Intl

21h 44m

2 stops

EAS1:00 pmSan Sebastián

Sep 22

EAS9:20 amSan Sebastián

17h 13m

2 stops

DEN6:33 pmDenver Intl

$985

Find similar

Iberia

Nov 7

DEN5:25 pmDenver Intl

19h 25m

2 stops

EAS8:50 pmSan Sebastián

Nov 11

EAS1:40 pmSan Sebastián

40h 42m

2 stops

DEN10:22 pmDenver Intl

$1,023

Find similar

Iberia

Nov 4

DEN12:33 pmDenver Intl

16h 27m

2 stops

EAS1:00 pmSan Sebastián

Nov 30

EAS9:30 pmSan Sebastián

26h 00m

2 stops

DEN3:30 pmDenver Intl

$1,057

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Mon 9/15

7:16 am-1:00 pm

2 stops21h 44m

San Sebastián

Mon 9/22

9:20 am-6:33 pm

2 stops17h 13m

$985

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Fri 11/7

5:25 pm-8:50 pm

2 stops19h 25m

San Sebastián

Tue 11/11

1:40 pm-10:22 pm

2 stops40h 42m

$1,023

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Tue 11/4

12:33 pm-1:00 pm

2 stops16h 27m

San Sebastián

Sun 11/30

9:30 pm-3:30 pm

2 stops26h 00m

$1,057

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Tue 11/4

4:20 pm-8:40 am

3 stops32h 20m

San Sebastián

Sun 11/30

2:05 pm-4:00 pm

2 stops33h 55m

$1,148

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Fri 11/7

12:27 pm-1:00 pm

2 stops16h 33m

San Sebastián

Tue 11/11

9:20 am-10:22 pm

2 stops21h 02m

$1,180

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Fri 11/7

7:22 am-1:00 pm

2 stops21h 38m

San Sebastián

Tue 11/11

9:20 am-10:22 pm

2 stops21h 02m

$1,181

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Tue 11/4

7:20 pm-1:30 pm

3 stops34h 10m

San Sebastián

Sun 11/30

2:05 pm-6:05 pm

3 stops36h 00m

$1,430

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

Mon 11/3

12:20 am-1:00 pm

2 stops28h 40m

San Sebastián

Sun 11/30

9:30 pm-7:55 pm

2 stops30h 25m

$1,549

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Colorado to San Sebastian

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to San Sebastian?

On average, the least expensive day to fly to San Sebastian from Colorado is on a Saturday. momondo users have found tickets for Saturday departures for as low as $1,183. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Colorado to San Sebastian for around $2,865.

What is the cheapest time of day to depart on your flight to San Sebastian?

Flying to San Sebastian from Colorado in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,157 when looking at flights departing in the afternoon. Flights to San Sebastian are more costly in the morning, with an average ticket price of $1,572. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Colorado to San Sebastian flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to San Sebastian

Best Price Found	$985
Fastest flight time	16h 27m
Direct flights	None
Airports in San Sebastian	1 airport

The best flight deal from Colorado to San Sebastian found on momondo in the last 72 hours is $985

The fastest flight from Colorado to San Sebastian takes 16h 27m

There are no direct flights from Colorado to San Sebastian. Popular non-direct route for this connection is Denver Intl Airport - San Sebastián Airport.

There is 1 airport near San Sebastian: San Sebastián (EAS)

Search flight deals

When did momondo last update prices for flights from Colorado to San Sebastián Airport?
Prices for flights from Colorado to San Sebastián Airport were last updated today.
How many operators does momondo search for flights from Colorado to San Sebastián Airport?
There is 1 operator available for flights from Colorado to San Sebastián Airport as of August 2025.
How old do you have to be to fly from Colorado to San Sebastián Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to San Sebastián Airport.
What documentation or ID do you need to fly to San Sebastián Airport?
The travel and health documents you'll need for your trip to San Sebastián Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Sebastián Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to San Sebastian

Compare and see reviews for airlines that fly from Colorado to San Sebastian with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $873	Free Cancellation	Rating 7.0 2,862 reviews		Search Iberia flights

Irun

Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to San Sebastian?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Colorado to San Sebastian. momondo saves you time and could save you money on your trip.

Can I find flights from Colorado to San Sebastian with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Colorado to San Sebastian flights to just show those with flexible booking policies.

How can momondo help me find flights from Colorado to San Sebastian?

Once you have performed a search for Colorado to San Sebastian flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Colorado to San Sebastian right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Sebastian from Colorado. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.