Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Denver to San Sebastian from $444

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to San Sebastian departing on 7/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Denver to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
DEN
-
EAS
4944 mimulti-stop
Multiple Airlines Logo
EAS
-
DEN
4944 mimulti-stop
Multiple Airlines

Iberia flights from Denver to San Sebastian

Our best Iberia deals on Denver to San Sebastian flight tickets
Iberia
Jun 14
DEN6:40 pmDenver Intl
29h 40m
2 stops
EAS8:20 amSan Sebastián
Jun 27
EAS9:30 pmSan Sebastián
42h 54m
2 stops
DEN8:24 amDenver Intl
$1,628
Iberia
Apr 18
DEN6:19 amDenver Intl
22h 41m
2 stops
EAS1:00 pmSan Sebastián
Apr 24
EAS5:55 pmSan Sebastián
31h 07m
2 stops
DEN5:02 pmDenver Intl
$2,482

momondo 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, momondo users made 832,500 searches. Data last updated أبريل 13, 2026.
Use the filters below to find and compare flights from Denver to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

س 7/11

5:40 pm-1:00 pm

2 stops35h 20m

$444
Quickest one-way

DenverSan Sebastian

DEN - EAS

DENEAS

Denver Intl

س 7/11

8:00 pm-8:40 am

3 stops28h 40m

$530

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Sebastian from

How to get the cheapest flight ticket from Denver 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

What is the cheapest airline that flies from Denver Intl to San Sebastián?

Iberia is the most popular carrier operating from Denver Intl to San Sebastián

When to book flights from Denver to San Sebastian

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to San Sebastian according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to San Sebastian (DEN to EAS) flight deals and tips

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

Fastest flight time

18h 15m

Direct flights

None
The fastest flight from Denver to San Sebastian takes 18h 15m
There are no direct flights from Denver to San Sebastian. There are no popular flight routes from Denver to San Sebastian.
Search flight deals

Frequently asked questions about flying from Denver to San Sebastian

  • How far is Denver Intl to San Sebastián by plane?

    A flight from Denver Intl to San Sebastián will travel around 4956.4 mi. Flights usually cover this in 18h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Denver Intl Airport to San Sebastián Airport?

    Prices for flights from Denver Intl Airport to San Sebastián Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Denver Intl Airport to San Sebastián Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to San Sebastián Airport.

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

    The required travel and health documents for your San Sebastián Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Sebastián Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun
Hondarribia

Why use momondo?

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

It is quick and easy to find Denver to San Sebastian flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Sebastian that suits you.

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

Flights from Denver to San Sebastian with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to San Sebastian from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to San Sebastian from Denver are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Sebastian trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
ر 5/13
ر 5/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Airports servicing Basque Country

Bilbao Airport