Cheap flights from Milwaukee, WI to Donostia / San Sebastián, Spain

Travelers frequently search for route combinations, such as Milwaukee and London, Orlando, San Francisco, Phoenix, Las Vegas, San Diego, Los Angeles, Oakland, Riga, Newcastle upon Tyne, Brussels, Austin, Denver, Raleigh, Boston, Fort Lauderdale, Fort Myers, Atlanta, Dallas, Salt Lake City.

Travelers frequently search for route combinations, such as Donostia / San Sebastián and London, Dublin, Manchester, Madrid, Birmingham, Athens, Naples, Barcelona, Bristol, Calgary, Edinburgh, Thessaloniki, Zürich, Nottingham, Glasgow, Berlin, Amsterdam, Riga, Tallinn, Venice.

The main airport in Milwaukee is General Mitchell International. It is also served by O Hare International, Chicago Midway International, General Mitchell International, Gerald R. Ford International, Appleton International, Dane County Regional, Chicago Rockford International, South Bend International, Green Bay–Austin Straubel International, Muskegon County.

The main airport in Donostia / San Sebastián is San Sebastián. It is also served by Bilbao, Bordeaux–Mérignac, San Sebastián, Biarritz Pays Basque, Tarbes–Lourdes–Pyrénées, Santander, Pamplona, Zaragoza, Pau Pyrénées, Logroño–Agoncillo.

Yes, it's possible to combine different modes of transport between Milwaukee and Donostia / San Sebastián thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Milwaukee and Donostia / San Sebastián can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Milwaukee and Donostia / San Sebastián with JetBlue Airways, Vueling, Iberia Airlines, Lufthansa, WestJet.

If you don’t have specific dates for your trip between Milwaukee and Donostia / San Sebastián, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between Milwaukee and Donostia / San Sebastián, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What's more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.