The cheapest times to fly from EAS to ORD are

  • January 8th to May 20th (except the week of April 9th)
  • October 15th to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from EAS to ORD is mid January. Prices can be as high as $1567 for Saturday flights during early August, or as low as $491 for Monday flights around mid January.


When to Fly to Chicago

Flying from San Sebastian (EAS) to Chicago, IL (ORD) will usually cost between $497 to $1461 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid January with an average ticket price of $517. Due to high demand the most expensive time to fly is early August, with an average price of $1509. Planning your trip to low-cost times can easily save you $993 on economy flights and even more on first-class flights. Generally, any price below $849 can be considered a good price for a round-trip EAS to ORD flight.

See below for a graph of average weekly prices for the EAS to ORD route. All prices are for round-trip tickets in USD.

EAS to ORD Flight Prices

Compared to other flights, the EAS to ORD flight is cheaper than the average and costs less than the average flight leaving from Donostia-San Sebastian. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to ORD, and Wednesday the cheapest day to fly back into EAS. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $149 (16%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $829. Return trip prices are from the ORD to EAS flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from EAS to ORD can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 29 minutes may not be realistic.


Flight Hacking EAS to ORD

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from EAS to ORD — but Champion Traveler does!

Hack #1: Barcelona (EAS > BCN > ORD)

  • Price for both tickets: $509
  • Average savings: $340 (40.07%)

See EAS to MAD flights

Hack #2: Madrid (EAS > MAD > ORD)

  • Price for both tickets: $580
  • Average savings: $269 (31.7%)

See EAS to BCN flights

Hack #3: New York, NY (EAS > JFK > ORD)

  • Price for both tickets: $808
  • Average savings: $41 (4.77%)

See EAS to JFK flights


Flight Questions Answered

Still have questions about flying from EAS to ORD? We’ve got answers.

Which airlines fly this route?

You can find 7 major airlines flying this route most often: American, British Airways, Finnair, Iberia, JetBlue, Tap Air Portugal, United, and potentially more during busy seasons.

How far away is it from Chicago O’Hare International Airport to San Sebastian Airport?

The distance between the two airports is roughly 4164 miles or 6701 kilometers.

How long does it take to fly from EAS to ORD?

The real-world flight time for a nonstop EAS to ORD flight is about 8 hour 29 minutes.

How many flights go between San Sebastian and Chicago, IL?

It depends on the day of the week and the date, but a typical day might have around 6 available flights from EAS to ORD.


Airport Location Info


Departing Airport

Origination code EAS
Origination airport name San Sebastian Airport
City San Sebastian
Country Spain
Latitude 43.4
Longitude -1.8

Return Airport

Destination code ORD
Destination airport name Chicago O’Hare International Airport
City Chicago, IL
Country the United States
Latitude 42
Longitude -87.9


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.