$374 Find Cheap Flights from Milwaukee to Barcelona - Compare and Save

In the last 5 days, the lowest price for a flight from Milwaukee to Barcelona-El Prat Airport was $374 for a one-way ticket and $784 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in Milwaukee and on arrival in Barcelona.

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

Star Alliance, and oneworld are the airline alliances operating flights between Milwaukee and Barcelona, with Star Alliance being the most commonly used for this route.

The two airlines most popular with KAYAK users for flights from Milwaukee to Barcelona are United Airlines and American Airlines. With an average price for the route of $1,370 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $845 and an overall rating of 7.1.

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 Milwaukee to Barcelona.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Barcelona from Milwaukee 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 Barcelona with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and BCN 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 Barcelona from Milwaukee up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.