There are several airlines that operate frequent flights from Chicago (ORD) to Barcelona (BCN) including

• United Airlines with 170 flights a week
• American Airlines with 99 flights a week
• Lufthansa Cargo with 86 flights a week
• British Airways with 71 flights a week
• Finnair with 53 flights a week

The earliest flight leaves O'Hare Intl. Airport at 10:21 and arrives at Barcelona Intl. Airport at 06:10. The last flight of the day departs Chicago at 23:00 and arrives at Barcelona at 19:45.

The flight distance from Chicago to Barcelona is about 7547 km, the shortest flight is 08 hours 30 minutes with WestJet.

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