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$653+ 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
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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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 November 2, 2025.

Round-trip from

$653
(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 November 2, 2025.

This American Airlines deal was found by Cheapflights users on 10/31. 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 11/139:20 amEAS - STL
2 stops17h 09mAmerican Airlines
Mon 11/1711:42 amSTL - EAS
2 stops18h 18mAmerican Airlines
Deal found 10/31$1,278
This Iberia deal was found by Cheapflights users on 11/1. 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 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 01mIberia
Mon 11/179:47 amSTL - EAS
2 stops20h 13mIberia
Deal found 11/1$1,288

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 November 2, 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

9:20 am-9:10 pm

2 stops18h 50m

Chicago O'Hare Intl

Tue 2/17

9:45 pm-8:40 am

2 stops27h 55m

$653

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

9:30 pm-2:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Tue 2/17

9:51 am-8:40 am

2 stops15h 49m

$877

San SebastianSt. Louis

EAS - STL

EASSTL

San Sebastián

Thu 11/13

9:20 am-7:29 pm

2 stops17h 09m

Lambert-St Louis

Mon 11/17

11:42 am-1:00 pm

2 stops18h 18m

$1,278

San SebastianSt. Louis

EAS - STL

EASSTL

San Sebastián

Thu 11/13

9:20 am-8:21 pm

2 stops18h 01m

Lambert-St Louis

Mon 11/17

9:47 am-1:00 pm

2 stops20h 13m

$1,288

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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 18h 50m. The time it takes to get you to your destination can typically vary by up to 5h 35m. 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.

See more FAQs

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