$429 Find Cheap Flights from San Sebastian to Chicago - Compare and Save

In the last 5 days, the lowest price for a flight from San Sebastian to Chicago O'Hare Intl Airport was $429 for a one-way ticket and $748 for a round-trip.

Yes, you’ll need a passport to travel to Chicago from San Sebastian.

We unfortunately don’t have that data for this specific route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Sebastian to Chicago.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from San Sebastian is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to San Sebastian with another airline. Booking your flights between San Sebastian and ORD can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from San Sebastian up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.