$898+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EAS
Jun 6 — Jun 131
Round-trip
1 adult, Economy
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Find cheap flights from Denver to San Sebastian with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Denver to San Sebastian
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Cheapest flights from Denver to San SebastianExplore 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 May 7, 2026.
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 May 7, 2026.
This Orbitz deal was found by Cheapflights users on 5/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:25 pm
DEN
- EAS
2 stops35h 55m
Iberia
Mon 11/162:05 pm
EAS
- DEN
2 stops33h 25m
Iberia
Deal found 5/2![Iberia logo]()
$898
This Priceline deal was found by Cheapflights users on 5/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:30 am
DEN
- EAS
2 stops21h 30m
Iberia
Tue 10/69:30 pm
EAS
- DEN
2 stops26h 55m
Iberia
Deal found 5/3![Iberia logo]()
$933
This Ovago deal was found by Cheapflights users on 5/5. 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.
Fri 9/189:03 am
DEN
- EAS
2 stops19h 57m
British Airways
Sat 9/269:30 pm
EAS
- DEN
2 stops30h 09m
British Airways
Deal found 5/5![British Airways logo]()
$990
This British Airways deal was found by Cheapflights users on 5/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:45 pm
DEN
- EAS
2 stops42h 05m
British Airways
Mon 11/169:30 pm
EAS
- DEN
2 stops33h 33m
British Airways
Deal found 5/1![British Airways logo]()
$1,108
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Sat 9/191:00 pm
DEN
- EAS
2 stops40h 50m
American Airlines
Sun 9/271:40 pm
EAS
- DEN
2 stops26h 32m
American Airlines
Deal found 5/5![American Airlines logo]()
$1,129
This Expedia deal was found by Cheapflights users on 5/3. 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.
Sun 7/197:16 am
DEN
- EAS
2 stops29h 34m
Iberia
Wed 7/298:55 am
EAS
- DEN
2 stops39h 30m
Iberia
Deal found 5/3![Iberia logo]()
$1,143
This Ovago deal was found by Cheapflights users on 5/5. 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.
Sat 9/198:30 am
DEN
- EAS
2 stops16h 10m
Multiple Airlines
Fri 9/259:30 pm
EAS
- DEN
2 stops27h 00m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,175
This Ovago deal was found by Cheapflights users on 5/5. 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.
Thu 9/178:30 am
DEN
- EAS
2 stops16h 10m
Multiple Airlines
Sun 9/279:30 pm
EAS
- DEN
2 stops27h 00m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,195
This Ovago deal was found by Cheapflights users on 5/5. 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.
Thu 9/178:30 am
DEN
- EAS
2 stops16h 10m
Multiple Airlines
Fri 9/259:30 pm
EAS
- DEN
2 stops27h 00m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,211
This KAYAK deal was found by Cheapflights users on 5/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:30 am
DEN
- EAS
2 stops16h 10m
Multiple Airlines
Fri 9/259:20 am
EAS
- DEN
2 stops17h 07m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,241
This Ovago deal was found by Cheapflights users on 5/5. 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.
Fri 9/188:30 am
DEN
- EAS
2 stops16h 10m
Multiple Airlines
Sun 9/279:30 pm
EAS
- DEN
2 stops27h 00m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,271
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Thu 9/178:30 am
DEN
- EAS
2 stops16h 10m
American Airlines
Sat 9/269:20 am
EAS
- DEN
2 stops19h 03m
American Airlines
Deal found 5/5![American Airlines logo]()
$1,303
Best flights from Denver to San SebastianDiscover 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 May 7, 2026.
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 May 7, 2026.
This Priceline deal was found by Cheapflights users on 5/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:30 am
DEN
- EAS
2 stops21h 30m
Iberia
Tue 10/69:30 pm
EAS
- DEN
2 stops26h 55m
Iberia
Deal found 5/3![Iberia logo]()
$933
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Sat 9/191:00 pm
DEN
- EAS
2 stops40h 50m
American Airlines
Sun 9/271:40 pm
EAS
- DEN
2 stops26h 32m
American Airlines
Deal found 5/5![American Airlines logo]()
$1,129
This Ovago deal was found by Cheapflights users on 5/5. 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.
Sat 9/198:30 am
DEN
- EAS
2 stops16h 10m
Multiple Airlines
Fri 9/259:30 pm
EAS
- DEN
2 stops27h 00m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,175
This Expedia deal was found by Cheapflights users on 5/3. 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.
Sun 7/197:16 am
DEN
- EAS
2 stops29h 34m
Iberia
Wed 7/298:55 am
EAS
- DEN
2 stops39h 30m
Iberia
Deal found 5/3![Iberia logo]()
$1,143
This Ovago deal was found by Cheapflights users on 5/5. 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.
Fri 9/188:30 am
DEN
- EAS
2 stops16h 10m
Multiple Airlines
Sun 9/279:30 pm
EAS
- DEN
2 stops27h 00m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,271
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Thu 9/178:30 am
DEN
- EAS
2 stops16h 10m
American Airlines
Sat 9/269:20 am
EAS
- DEN
2 stops19h 03m
American Airlines
Deal found 5/5![American Airlines logo]()
$1,303
This Iberia deal was found by Cheapflights users on 5/3. 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.
Sun 10/114:21 pm
DEN
- EAS
2 stops20h 29m
Iberia
Fri 10/169:20 am
EAS
- DEN
2 stops21h 01m
Iberia
Deal found 5/3![Iberia logo]()
$1,438
This Mytrip deal was found by Cheapflights users on 5/3. 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 7/194:40 pm
DEN
- EAS
3 stops31h 40m
Multiple Airlines
Wed 7/298:55 am
EAS
- DEN
2 stops34h 25m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$1,507
This Mytrip deal was found by Cheapflights users on 5/3. 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 7/278:10 pm
DEN
- EAS
3 stops28h 10m
Multiple Airlines
Fri 7/318:55 am
EAS
- DEN
3 stops35h 45m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$1,606
This Expedia deal was found by Cheapflights users on 5/3. 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 7/273:11 pm
DEN
- EAS
2 stops21h 39m
Iberia
Fri 7/315:55 pm
EAS
- DEN
2 stops30h 35m
Iberia
Deal found 5/3![Iberia logo]()
$1,746
This Expedia deal was found by Cheapflights users on 5/6. 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.
Sat 6/205:45 pm
DEN
- EAS
2 stops35h 15m
Multiple Airlines
Sat 6/279:30 pm
EAS
- DEN
2 stops47h 43m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,620
Last-minute flights from Denver to San SebastianDiscover last-minute flight deals from Denver to San Sebastian. Data last updated May 7, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to San Sebastian. Data last updated May 7, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/6. 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.
Sat 6/205:45 pm
DEN
- EAS
2 stops35h 15m
Multiple Airlines
Sat 6/279:30 pm
EAS
- DEN
2 stops47h 43m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,620
One-way flights from Denver to San SebastianSearch for one-way flight options from Denver to San Sebastian. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
Search for one-way flight options from Denver to San Sebastian. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
This BusinessClass deal was found by Cheapflights users on 5/5. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/512:39 pm
DEN
- EAS
2 stops36h 01m
Iberia
Deal found 5/5![Iberia logo]()
$1,244
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:45 am
DEN
- EAS
3 stops39h 35m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,390
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 May 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $933 (Priceline) |
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 May 7, 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
Cheapest round-trip
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Mon 9/28
7:30 am-1:00 pm
2 stops21h 30m
San Sebastián
Tue 10/6
9:30 pm-4:25 pm
2 stops26h 55m
$933
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Sat 9/19
1:00 pm-1:50 pm
2 stops40h 50m
San Sebastián
Sun 9/27
1:40 pm-8:12 am
2 stops26h 32m
$1,129
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Sun 7/19
7:16 am-8:50 pm
2 stops29h 34m
San Sebastián
Wed 7/29
8:55 am-4:25 pm
2 stops39h 30m
$1,143
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Sat 9/19
8:30 am-8:40 am
2 stops16h 10m
San Sebastián
Fri 9/25
9:30 pm-4:30 pm
2 stops27h 00m
$1,175
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Fri 9/18
8:30 am-8:40 am
2 stops16h 10m
San Sebastián
Sun 9/27
9:30 pm-4:30 pm
2 stops27h 00m
$1,271
Quickest round-trip
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Thu 9/17
8:30 am-8:40 am
2 stops16h 10m
San Sebastián
Sat 9/26
9:20 am-8:23 pm
2 stops19h 03m
$1,303
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Sun 10/11
4:21 pm-8:50 pm
2 stops20h 29m
San Sebastián
Fri 10/16
9:20 am-10:21 pm
2 stops21h 01m
$1,438
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Sun 7/19
4:40 pm-8:20 am
3 stops31h 40m
San Sebastián
Wed 7/29
8:55 am-11:20 am
2 stops34h 25m
$1,507
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Mon 7/27
8:10 pm-8:20 am
3 stops28h 10m
San Sebastián
Fri 7/31
8:55 am-12:40 pm
3 stops35h 45m
$1,606
DenverSan Sebastian
DEN - EAS
DENEAS
Denver Intl
Sat 6/20
5:45 pm-1:00 pm
2 stops35h 15m
San Sebastián
Sat 6/27
9:30 pm-1:13 pm
2 stops47h 43m
$1,620
Showing 1-10 of 13 resultsSorted by cheapest first
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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
DEN-EAS
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.
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.
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