HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$657+ Cheap flights from San Sebastian (EAS) to Illinois

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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Sebastian to Illinois 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 San Sebastian to Illinois

Keep the following information in mind while searching for San Sebastian to Illinois flight deals. Data was last updated September 16, 2025.

Round-trip from

$657
(Iberia)
From San Sebastián to Illinois
Search Deals

Find flight deals from San Sebastian to Illinois

Cheapest flights from San Sebastian to Illinois
Explore the most affordable flight options available from San Sebastian to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. 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 11/69:20 amEAS - ORD
1 stop12h 10mAmerican Airlines
Thu 11/138:20 amORD - EAS
2 stops17h 20mAmerican Airlines
Deal found 9/14$674
This Iberia deal was found by Cheapflights users on 9/15. 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 10/159:30 pmEAS - ORD
1 stop28h 20mIberia
Wed 10/2210:30 pmORD - EAS
1 stop27h 10mIberia
Deal found 9/15$689
This Trip.com deal was found by Cheapflights users on 9/15. 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.
Thu 11/69:20 amEAS - ORD
1 stop12h 10mIberia
Thu 11/134:45 pmORD - EAS
1 stop21h 05mIberia
Deal found 9/15$723
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Wed 10/155:55 pmEAS - ORD
2 stops25h 40mMultiple Airlines
Wed 10/226:00 amORD - EAS
3 stops43h 30mMultiple Airlines
Deal found 9/15$754
This Iberia deal was found by Cheapflights users on 9/13. 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 11/139:20 amEAS - STL
2 stops18h 35mIberia
Mon 11/1711:51 amSTL - EAS
2 stops25h 59mIberia
Deal found 9/13$863
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Thu 11/62:05 pmEAS - ORD
3 stops34h 15mMultiple Airlines
Thu 11/136:30 pmORD - EAS
3 stops36h 00mMultiple Airlines
Deal found 9/14$888

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Sebastian to Illinois 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 September 16, 2025.
Use the filters below to find and compare flights from San Sebastian to Illinois that are best for you.

Fly from

San Sebastian

Fly to

Illinois

Route

Depart

Return

Price

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

9:30 pm-3:25 pm

2 stops24h 55m

Chicago O'Hare Intl

Tue 2/17

8:45 pm-8:40 am

2 stops28h 55m

$657

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Thu 11/6

9:20 am-2:30 pm

1 stop12h 10m

Chicago O'Hare Intl

Thu 11/13

8:20 am-8:40 am

2 stops17h 20m

$674

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 10/15

9:30 pm-6:50 pm

1 stop28h 20m

Chicago O'Hare Intl

Wed 10/22

10:30 pm-8:40 am

1 stop27h 10m

$689

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Thu 11/6

9:20 am-2:30 pm

1 stop12h 10m

Chicago O'Hare Intl

Thu 11/13

4:45 pm-8:50 pm

1 stop21h 05m

$723

San SebastianSt. Louis

EAS - STL

EASSTL

San Sebastián

Thu 11/13

9:20 am-8:55 pm

2 stops18h 35m

Lambert-St Louis

Mon 11/17

11:51 am-8:50 pm

2 stops25h 59m

$863

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from San Sebastian to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from San Sebastian 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 San Sebastian to Illinois
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from San Sebastian to Illinois. 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 from for flights from San Sebastian to Illinois?

    If you book a flight to Illinois from San Sebastian, you will be flying from San Sebastián, which is the city’s only airport. San Sebastián (EAS) is located 9.7 mi from the center of San Sebastian.

  • How long is the flight from San Sebastian to Illinois?

    Airlines like Iberia and American Airlines fly from San Sebastian to Illinois in about 12h 10m. The time it takes to get you to your destination can typically vary by up to 12h 45m. The distance from San Sebastian to Illinois is about 4162 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from San Sebastian to Illinois that include hotel bookings?

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

  • How can I find direct flights from San Sebastian to Illinois?

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

  • Can I find deals for business class flights from San Sebastian to Illinois?

    Yes. Cheapflights offers flight deals from San Sebastian to Illinois 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 San Sebastian to Illinois?

    Currently, August is the cheapest month in which you can book a flight from San Sebastian to Illinois (average of $245). Flying from San Sebastian to Illinois in March is currently the most expensive (average of $321). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Sebastian to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Bilbao to Los Angeles flights
Bilbao to John F Kennedy Intl flights
Bilbao to Newark flights
Bilbao to Miami flights
Bilbao to San Francisco flights
Bilbao to Dallas/Fort Worth flights
Bilbao to O'Hare Intl flights
San Sebastian to John F Kennedy Intl flights
Bilbao to Boston flights
San Sebastian to Los Angeles flights
Bilbao to Fort Lauderdale flights
Bilbao to West Palm Beach flights
Bilbao to Honolulu flights
Bilbao to Dulles Intl flights
Bilbao to Baltimore flights
Bilbao to Orlando flights
San Sebastian to Boston flights
Bilbao to Denver flights
Bilbao to San Diego flights
Bilbao to Seattle flights
Bilbao to Atlanta flights
Bilbao to George Bush Intcntl flights
Bilbao to Hobby flights
Bilbao to Minneapolis flights
Bilbao to Las Vegas flights
Bilbao to Pittsburgh flights
Bilbao to New Orleans flights
Bilbao to San Jose flights
San Sebastian to Miami flights
Bilbao to Sacramento flights
Bilbao to Salt Lake City flights
Bilbao to Austin flights
Bilbao to Sky Harbor Intl flights
Bilbao to Santa Ana flights
Bilbao to Anchorage flights
Bilbao to Kansas City flights
Bilbao to Tampa flights
Bilbao to Boise flights
Bilbao to St. Louis flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.