$396 Cheap Flights from San Sebastian (EAS) to Chicago (ORD)

View $396 flight on Tue, Feb 24, 2026Opens in a new window

Popular airlines from San Sebastian (EAS) to Chicago O'Hare Intl. Airport (ORD)

Cheap Flights from San Sebastian to Chicago (EAS-ORD)

Prices were available within the past 7 days and start at $396 for one-way flights and $1,381 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,381 Roundtrip, found 1 day ago
$1,381
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,381 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,390 Roundtrip, found 1 day ago
$1,390
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,390 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,394 Roundtrip, found 1 day ago
$1,394
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,394 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,403 Roundtrip, found 1 day ago
$1,403
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,403 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,468 Roundtrip, found 1 day ago
$1,468
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,468 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,477 Roundtrip, found 1 day ago
$1,477
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,477 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,481 Roundtrip, found 1 day ago
$1,481
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,481 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,490 Roundtrip, found 1 day ago
$1,490
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,490 found 1 day ago
Iberia
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,602 Roundtrip, found 1 day ago
$1,602
Roundtrip
found 1 day ago
Select Iberia flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,602 found 1 day ago
British Airways
Thu, Oct 23 - Mon, Oct 27
EAS
San Sebastián
ORD
Chicago
$1,871 Roundtrip, found 1 day ago
$1,871
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Oct 23 from San Sebastián to Chicago, returning Mon, Oct 27, priced at $1,871 found 1 day ago

Alternative airports near Chicago

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city center is 23 minutes. Flights from $1,381
ORD
O'Hare Intl.
Cheapest
Average driving time to city center23 min
Flights from $1,381

Frequently asked questions

How much does a flight from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD) cost?
Get a cheap one-way flight from $396 or cheap return flight from $1,381 from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD)?
The cheapest month to fly from EAS to ORD is October, when there's less demand. Off-peak months are generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from EAS to ORD. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD)?
You'll need to hop on a flight with a layover if you're traveling from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from EAS to ORD?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD)?
Select a flight from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD) that leaves before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD) last-minute?
Booking your plane ticket from EAS to ORD just before your trip is generally more expensive. But if there's some wiggle room with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an EAS to ORD flight and hotel package?
Compared with arranging hotels and flights separately, booking an EAS to ORD flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of stays, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from San Sebastian Airport (EAS) to O'Hare Intl. Airport (ORD)?
In most cases, you can reschedule or cancel your EAS to ORD flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like more details, visit our Customer Service portal.

Travel information

Travel information

Origin airport
San Sebastian
Destination airport
O'Hare Intl.
Roundtrip price
$1,380
Distance
4164 mi

Book with confidence

Book with confidence

San Sebastian to Chicago Flights

The cheapest times to fly from San Sebastian to Chicago

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Sebastian to Chicago are during the month of October. You can find some of the cheapest flights from San Sebastian to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Sebastian to Chicago

Sunday is one of the best days to book for cheap flights from San Sebastian to Chicago: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Sebastian to Chicago

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Sebastian to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from $396 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Sebastian to Chicago flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Sebastian to Chicago airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Sebastian to Chicago Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.