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San Sebastian

$737+ Cheap flights from O'Hare Intl (ORD) 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EAS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from O'Hare Intl to San Sebastian

Best flights from O'Hare Intl to San Sebastian
Discover carefully curated flight deals from O'Hare Intl to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/11. 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 2/411:38 amORD - EAS
2 stops18h 22mAmerican Airlines
Mon 2/99:30 pmEAS - ORD
2 stops19h 23mAmerican Airlines
Deal found 12/11$737
This Expedia deal was found by Cheapflights users on 12/11. 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 1/255:40 pmORD - EAS
1 stop20h 10mIberia
Sun 2/19:20 amEAS - ORD
1 stop12h 35mIberia
Deal found 12/11$767
This FlightHub deal was found by Cheapflights users on 12/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/148:12 amORD - EAS
2 stops17h 28mMultiple Airlines
Sun 1/189:30 pmEAS - ORD
1 stop24h 25mMultiple Airlines
Deal found 12/10$794
This Iberia deal was found by Cheapflights users on 12/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2811:52 amORD - EAS
2 stops18h 08mIberia
Sun 2/19:20 amEAS - ORD
1 stop12h 35mIberia
Deal found 12/10$771
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2811:52 amORD - EAS
2 stops13h 48mAmerican Airlines
Sun 2/19:20 amEAS - ORD
2 stops17h 50mAmerican Airlines
Deal found 12/10$781
This FlightHub deal was found by Cheapflights users on 12/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1510:10 amORD - EAS
2 stops15h 30mMultiple Airlines
Sun 1/189:30 pmEAS - ORD
1 stop24h 25mMultiple Airlines
Deal found 12/10$844
This American Airlines deal was found by Cheapflights users on 12/11. 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 1/1510:10 amORD - EAS
2 stops15h 30mAmerican Airlines
Mon 1/199:30 pmEAS - ORD
1 stop24h 25mAmerican Airlines
Deal found 12/11$782
This Iberia deal was found by Cheapflights users on 12/11. 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.
Thu 1/155:40 pmORD - EAS
1 stop12h 20mIberia
Mon 1/199:30 pmEAS - ORD
1 stop24h 25mIberia
Deal found 12/11$837

Find 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 December 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Cheapflightsfares
2 stars

Round-trip from

$732
(Orbitz)
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.
Search Deals
From Chicago O'Hare Intl to San Sebastián
Search Deals

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 December 12, 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

Wed 2/4

11:38 am-1:00 pm

2 stops18h 22m

San Sebastián

Mon 2/9

9:30 pm-9:53 am

2 stops19h 23m

$737

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Sun 1/25

5:40 pm-8:50 pm

1 stop20h 10m

San Sebastián

Sun 2/1

9:20 am-2:55 pm

1 stop12h 35m

$767

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 1/28

11:52 am-8:40 am

2 stops13h 48m

San Sebastián

Sun 2/1

9:20 am-8:10 pm

2 stops17h 50m

$781

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Thu 1/15

10:10 am-8:40 am

2 stops15h 30m

San Sebastián

Mon 1/19

9:30 pm-2:55 pm

1 stop24h 25m

$782

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Wed 1/14

8:12 am-8:40 am

2 stops17h 28m

San Sebastián

Sun 1/18

9:30 pm-2:55 pm

1 stop24h 25m

$794

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Thu 1/15

5:40 pm-1:00 pm

1 stop12h 20m

San Sebastián

Mon 1/19

9:30 pm-2:55 pm

1 stop24h 25m

$837

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Thu 1/15

10:10 am-8:40 am

2 stops15h 30m

San Sebastián

Sun 1/18

9:30 pm-2:55 pm

1 stop24h 25m

$844

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from O'Hare Intl 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 O'Hare Intl to San Sebastian in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 Cheapflightsfares the most. Cheapflightsfares 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 December is currently the most expensive (average of $866). 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 December 12, 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
11,050 reviews

Comfort

7.2

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.5

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,050 reviews
American Airlines
7.2
Good
11,050 reviews

Comfort

7.2

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.5

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 18h 22m. 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 December is currently the most expensive (average of $866). 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.
O'Hare Intl to Bilbao flights
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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$694Average$1,754FlexibilityNo cancel feeOn-time71%

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