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$753+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — ORD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$890
(lol.travel)

One-way from

$753
(British Airways)
From San Sebastián to Illinois
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One-way flight from San Sebastián to Illinois
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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 July 31, 2025.

This lol.travel deal was found by Cheapflights users on 7/29. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:30 pmEAS - ORD
2 stops29h 15mIberia
Fri 9/191:59 pmORD - EAS
2 stops35h 41mIberia
Deal found 7/29$890
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:05 amEAS - ORD
3 stops19h 10mMultiple Airlines
Fri 9/1910:15 pmORD - EAS
3 stops27h 35mMultiple Airlines
Deal found 7/29$942
This Iberia deal was found by Cheapflights users on 7/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:30 pmEAS - STL
2 stops32h 28mIberia
Mon 11/171:20 pmSTL - EAS
2 stops40h 40mIberia
Deal found 7/29$976
This American Airlines deal was found by Cheapflights users on 7/28. 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 11/139:20 amEAS - STL
2 stops17h 07mAmerican Airlines
Mon 11/175:56 pmSTL - EAS
2 stops31h 44mAmerican Airlines
Deal found 7/28$1,079
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:55 pmEAS - STL
3 stops32h 43mMultiple Airlines
Fri 9/194:05 pmSTL - EAS
3 stops33h 45mMultiple Airlines
Deal found 7/29$2,843
This Gotogate deal was found by Cheapflights users on 7/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:40 pmEAS - ORD
2 stops29h 35mAvianca
Thu 10/303:05 pmORD - EAS
2 stops23h 45mAvianca
Deal found 7/29$7,122

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 July 31, 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 9/12

9:30 pm-7:45 pm

2 stops29h 15m

Chicago O'Hare Intl

Fri 9/19

1:59 pm-8:40 am

2 stops35h 41m

$890

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 9/12

9:05 am-9:15 pm

3 stops19h 10m

Chicago O'Hare Intl

Fri 9/19

10:15 pm-8:50 am

3 stops27h 35m

$942

San SebastianSt. Louis

EAS - STL

EASSTL

San Sebastián

Thu 11/13

9:30 pm-10:58 pm

2 stops32h 28m

Lambert-St Louis

Mon 11/17

1:20 pm-1:00 pm

2 stops40h 40m

$976

San SebastianSt. Louis

EAS - STL

EASSTL

San Sebastián

Thu 11/13

9:20 am-7:27 pm

2 stops17h 07m

Lambert-St Louis

Mon 11/17

5:56 pm-8:40 am

2 stops31h 44m

$1,079

San SebastianSt. Louis

EAS - STL

EASSTL

San Sebastián

Fri 9/12

5:55 pm-7:38 pm

3 stops32h 43m

Lambert-St Louis

Fri 9/19

4:05 pm-8:50 am

3 stops33h 45m

$2,843

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Mon 10/27

1:40 pm-1:15 pm

2 stops29h 35m

Chicago O'Hare Intl

Thu 10/30

3:05 pm-8:50 pm

2 stops23h 45m

$7,122

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 9/7

9:30 pm-2:15 pm

1 stop23h 45m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with American Airlines, Iberia, and Avianca from San Sebastian to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
Iberia
7.0
Good
2,858 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
Avianca
6.7
Okay
2,387 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

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.

  • 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

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