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San Sebastian

$681+ Cheap flights from O'Hare Intl (ORD) to San Sebastian (EAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EAS
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Find flight deals from O'Hare Intl to San Sebastian

Cheapest flights from O'Hare Intl to San Sebastian
Explore the most affordable flight options available from O'Hare Intl to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This Iberia deal was found by Cheapflights users on 11/9. 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 12/75:40 pmORD - EAS
1 stop20h 10mIberia
Tue 12/239:30 pmEAS - ORD
1 stop24h 25mIberia
Deal found 11/9$730
This Expedia deal was found by Cheapflights users on 11/9. 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 12/78:20 amORD - EAS
2 stops17h 20mMultiple Airlines
Tue 12/239:30 pmEAS - ORD
1 stop24h 25mMultiple Airlines
Deal found 11/9$788
This American Airlines deal was found by Cheapflights users on 11/9. 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 11/285:40 pmORD - EAS
1 stop12h 20mAmerican Airlines
Tue 12/21:40 pmEAS - ORD
1 stop32h 15mAmerican Airlines
Deal found 11/9$1,097
This Expedia deal was found by Cheapflights users on 11/9. 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.
Wed 12/246:30 pmORD - EAS
2 stops31h 10mIberia
Wed 12/319:20 amEAS - ORD
1 stop12h 35mIberia
Deal found 11/9$1,120
This Iberia deal was found by Cheapflights users on 11/9. 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.
Fri 11/283:50 pmORD - EAS
2 stops14h 10mIberia
Tue 12/29:30 pmEAS - ORD
2 stops24h 55mIberia
Deal found 11/9$1,133
This Trip.com deal was found by Cheapflights users on 11/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:50 amORD - EAS
2 stops26h 00mMultiple Airlines
Wed 12/319:20 amEAS - ORD
2 stops31h 45mMultiple Airlines
Deal found 11/9$1,375
This Expedia deal was found by Cheapflights users on 11/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:19 amORD - EAS
2 stops16h 21mIberia
Thu 1/19:20 amEAS - ORD
1 stop12h 35mIberia
Deal found 11/10$1,498

Cheap flight deals from O'Hare Intl to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 November 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$673
(Travelocity)
Provider with most accurate pricing for Chicago O'Hare Intl-San Sebastián flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-San Sebastián flights.
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From Chicago O'Hare Intl to San Sebastián
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 10, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Sebastian that are best for you.

Fly from

O'Hare Intl

Fly to

San Sebastian

Route

Depart

Return

Price

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Mon 2/2

6:05 am-8:40 am

2 stops19h 35m

San Sebastián

Mon 2/9

9:30 pm-10:54 am

2 stops20h 24m

$686

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Sun 12/7

5:40 pm-8:50 pm

1 stop20h 10m

San Sebastián

Tue 12/23

9:30 pm-2:55 pm

1 stop24h 25m

$730

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Wed 3/18

8:10 pm-8:50 pm

2 stops18h 40m

San Sebastián

Sat 3/21

9:30 pm-3:45 pm

2 stops24h 15m

$766

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Wed 1/28

11:52 am-1:00 pm

2 stops18h 08m

San Sebastián

Sun 2/1

9:20 am-2:55 pm

1 stop12h 35m

$771

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Wed 2/18

11:46 am-1:00 pm

2 stops18h 14m

San Sebastián

Sun 2/22

9:30 pm-2:55 pm

1 stop24h 25m

$781

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Thu 2/5

12:44 pm-1:30 pm

3 stops41h 46m

San Sebastián

Sun 2/8

2:05 pm-11:37 pm

3 stops40h 32m

$783

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Sun 12/7

8:20 am-8:40 am

2 stops17h 20m

San Sebastián

Tue 12/23

9:30 pm-2:55 pm

1 stop24h 25m

$788

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Thu 5/7

2:20 pm-5:20 pm

2 stops20h 00m

San Sebastián

Sat 5/16

8:55 am-12:20 pm

2 stops34h 25m

$795

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Wed 2/18

11:40 am-8:40 am

2 stops14h 00m

San Sebastián

Sun 2/22

9:20 am-9:25 pm

2 stops19h 05m

$798

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Wed 1/28

9:00 am-8:40 am

2 stops16h 40m

San Sebastián

Sun 2/1

9:20 am-8:10 pm

2 stops17h 50m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 11 results
1
2
  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-San Sebastian flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-San Sebastian flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-San Sebastian flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-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 Chicago O'Hare Intl Airport-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 O'Hare Intl to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from O'Hare Intl 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 Chicago O'Hare Intl Airport to San Sebastian

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Sebastian?

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Sebastian (average of $547). Flying from Chicago O'Hare Intl Airport to San Sebastian in July is currently the most expensive (average of $857). 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.

Reviews of airlines servicing San Sebastian

Get insights into the airlines that provide service to San Sebastian. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Sebastian. Reviews last updated November 10, 2025.
Get a feel of what it's like to fly with American Airlines from Chicago O'Hare Intl Airport to San Sebastian by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,047 reviews

Comfort

7.2

Crew

8.0

Boarding

7.5

Entertainment

6.9

Overall

7.2

Food

6.4

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
American Airlines
7.2
Good
11,047 reviews
American Airlines
7.2
Good
11,047 reviews

Comfort

7.2

Crew

8.0

Boarding

7.5

Entertainment

6.9

Overall

7.2

Food

6.4

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 Chicago O'Hare Intl?

    San Sebastián (EAS) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to San Sebastian. You should not have trouble finding flights to San Sebastián from Chicago O'Hare Intl; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights to the San Sebastian airport from Chicago O'Hare Intl. It is only a 9.7 mi journey from San Sebastián (EAS) to San Sebastian’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to San Sebastian?

    Departing from Chicago O'Hare Intl Airport to San Sebastian will take you 19h 35m. Airlines will cover a distance of 4162 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Chicago O'Hare Intl Airport to San Sebastian round-trip?

    Currently priced at $694, American Airlines will fly you from Chicago O'Hare Intl Airport to San Sebastian and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip.

  • Can I find deals for flights from O'Hare Intl to San Sebastian that include hotel bookings?

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

  • How can I find direct flights from O'Hare Intl to San Sebastian?

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

  • Can I find deals for business class flights from O'Hare Intl to San Sebastian?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 Chicago O'Hare Intl Airport to San Sebastian?

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Sebastian (average of $547). Flying from Chicago O'Hare Intl Airport to San Sebastian in July is currently the most expensive (average of $857). 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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Alternative routes for O'Hare Intl to San Sebastian

See prices for flight routes from nearby airports that may be better suited for you.
Midway to Bilbao flights
O'Hare Intl to Bilbao flights

Top airline flying from O'Hare Intl to San Sebastian

Discover the top airline that operate flights from O'Hare Intl 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 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$694Average$1,754FlexibilityNo cancel feeOn-time71%

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