$576 Find cheap flights from Allentown to Barcelona

In the last 3 days, the lowest price for a flight from Allentown to Barcelona-El Prat Airport was $576 for a one-way ticket and $974 for a round-trip.

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

When flying out of Allentown you will be using Allentown-Bethlehem. You will be landing at Barcelona, also known as Barcelona-El Prat.

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

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

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