Cheap flights from Chicago O'Hare Intl Airport to Barcelona from $340

The cheapest month to fly to Barcelona-El Prat Airport from Chicago O'Hare Intl Airport is in February. Flight prices, which tend to average around $471, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Barcelona-El Prat Airport from Chicago O'Hare Intl Airport during January instead. Flights to Barcelona-El Prat Airport in January, while not as cheap as those in February, still average around $560.

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Tuesday when prices can be found for as low as $866. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,132. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

Flying to Barcelona-El Prat Airport from Chicago O'Hare Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $781 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $997 on average. Flights to Barcelona-El Prat Airport from Chicago O'Hare Intl Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Chicago O'Hare Intl to Barcelona-El Prat for the best Chicago O'Hare Intl - Barcelona-El Prat flight prices

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $808 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Chicago O'Hare Intl Airport for as low as $643 on momondo.

There are 3 cabin classes available to choose from on Chicago O'Hare Intl Airport to Barcelona-El Prat Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

British Airways and United Airlines are the most popular carriers operating from Chicago O'Hare Intl to Barcelona-El Prat

United Airlines, American Airlines and Iberia are the top three most popular airlines that fly to Barcelona-El Prat Airport from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 17 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 29% of flights between Chicago and Barcelona have experienced a delay on any given week. The average delay length over the past 12 months has been 179 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

Dublin (DUB) was the most common stop: 20% of momondo users choosing 1-stop flights on this route connected there.

Flights via London (LHR) offer the lowest average round-trip price of $491.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 50m.

Rome (FCO) has the shortest average layover time for this route: 1h 25m.

4 flights are operational daily from Chicago O'Hare Intl Airport to Barcelona-El Prat Airport as of October 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.

As of October 2026, there are 29 flights per week flying from Chicago O'Hare Intl Airport to Barcelona-El Prat Airport. The most common day of the week flights depart is Wed, with 24% of flights taking off on this day.