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$341+ Cheap flights from San Sebastian (EAS) to Illinois

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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/27. 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 2/129:20 am
EAS
-
ORD
2 stops17h 39m
American Airlines
Mon 2/168:10 am
ORD
-
EAS
2 stops17h 30m
American Airlines
Deal found 1/27$719
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/139:20 am
EAS
-
ORD
1 stop12h 35m
American Airlines
Tue 2/172:40 pm
ORD
-
EAS
2 stops15h 20m
American Airlines
Deal found 1/28$836
This American Airlines deal was found by Cheapflights users on 1/27. 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 2/129:20 am
EAS
-
ORD
1 stop12h 35m
Multiple Airlines
Mon 2/1610:28 am
ORD
-
EAS
2 stops15h 12m
Multiple Airlines
Deal found 1/27$897
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/199:20 am
EAS
-
ORD
2 stops22h 17m
American Airlines
Mon 2/2311:53 am
ORD
-
EAS
2 stops13h 47m
American Airlines
Deal found 1/28$934
This Expedia deal was found by Cheapflights users on 1/27. 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.
Tue 8/49:30 pm
EAS
-
ORD
1 stop23h 45m
Iberia
Thu 8/274:30 pm
ORD
-
EAS
1 stop21h 20m
Iberia
Deal found 1/27$948
This Iberia deal was found by Cheapflights users on 1/27. 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 8/59:30 pm
EAS
-
ORD
1 stop25h 30m
Iberia
Thu 8/274:30 pm
ORD
-
EAS
1 stop21h 20m
Iberia
Deal found 1/27$987
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Tue 8/45:55 pm
EAS
-
ORD
2 stops48h 55m
Multiple Airlines
Mon 8/314:30 pm
ORD
-
EAS
1 stop33h 10m
Multiple Airlines
Deal found 1/29$992
This Iberia deal was found by Cheapflights users on 1/27. 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.
Mon 8/39:30 pm
EAS
-
ORD
2 stops33h 04m
Iberia
Thu 8/2710:25 pm
ORD
-
EAS
1 stop15h 25m
Iberia
Deal found 1/27$993
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Wed 8/59:30 pm
EAS
-
ORD
2 stops22h 10m
Multiple Airlines
Mon 8/314:30 pm
ORD
-
EAS
1 stop33h 10m
Multiple Airlines
Deal found 1/29$994
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Thu 8/69:30 pm
EAS
-
ORD
2 stops25h 30m
Multiple Airlines
Mon 8/314:30 pm
ORD
-
EAS
1 stop33h 10m
Multiple Airlines
Deal found 1/29$995
This American Airlines deal was found by Cheapflights users on 1/26. 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 2/49:20 am
EAS
-
STL
2 stops32h 45m
American Airlines
Sun 2/83:54 pm
STL
-
EAS
2 stops33h 46m
American Airlines
Deal found 1/26$1,253

Find 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 January 29, 2026.

Round-trip from

$719
(American Airlines)

One-way from

$341
(Kiwi.com)
From San Sebastián to Illinois
Search Deals
One-way flight from San Sebastián to Illinois
Search Deals

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 January 29, 2026.
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

Thu 2/12

9:20 am-7:59 pm

2 stops17h 39m

Chicago O'Hare Intl

Mon 2/16

8:10 am-8:40 am

2 stops17h 30m

$719

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

9:20 am-2:55 pm

1 stop12h 35m

Chicago O'Hare Intl

Tue 2/17

2:40 pm-1:00 pm

2 stops15h 20m

$836

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Thu 2/12

9:20 am-2:55 pm

1 stop12h 35m

Chicago O'Hare Intl

Mon 2/16

10:28 am-8:40 am

2 stops15h 12m

$897

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Thu 2/19

9:20 am-12:37 am

2 stops22h 17m

Chicago O'Hare Intl

Mon 2/23

11:53 am-8:40 am

2 stops13h 47m

$934

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

2:05 pm-6:25 pm

3 stops35h 20m

Chicago O'Hare Intl

Tue 2/17

9:18 am-1:30 pm

3 stops21h 12m

$1,387

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Mon 4/13

8:55 am-1:00 pm

2 stops35h 05m

$341

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 4/12

8:55 am-8:25 am

2 stops30h 30m

$430

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Mon 4/13

9:20 am-2:15 pm

1 stop11h 55m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 American Airlines fly from San Sebastian to Illinois in about 17h 39m. The time it takes to get you to your destination can typically vary by up to . The distance from San Sebastian to Illinois is about 4162 mi.

  • 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.

See more FAQs

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