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Cheap Flights from Chicago to London

8-9 hours direct flight. Airlines: American, British Airways, United +2 more. Fares from $500.

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Chicago to London Flight Overview

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Flight Details

  • Duration: 8-9 hours direct
  • Direct Flights: Yes
  • From: ORD (O'Hare - all carriers)
  • To: LHR (Heathrow) or DUB (Dublin with connection)
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Typical Prices

  • Economy: $500-$900 roundtrip
  • Business: $3,000-$6,000 roundtrip
  • Cheapest: January, February, November
  • Priciest: June-August, December

Airlines Flying Chicago to London

AmericanBritish AirwaysUnitedAer LingusVirgin Atlantic
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Tips for Cheap Chicago to London Flights

1American and British Airways run 3-4 daily nonstops ORD-LHR - if one is delayed, they can rebook you.
2Aer Lingus via Dublin offers US preclearance - you'll clear customs in Dublin and arrive in London as a domestic passenger.
3O'Hare's Terminal 5 handles most international flights - arrive 3 hours early for peak summer departures.
4Consider positioning to Chicago from smaller Midwest cities - ORD has far better transatlantic options than regional airports.

💡Savings tip: Aer Lingus via Dublin often saves $100-$200 versus direct flights

FAQs About Flights to Chicago to London

Direct flights from Chicago O'Hare to London take 8-9 hours eastbound. The return is about 9-10 hours due to headwinds. Multiple airlines offer 4-5 daily nonstops.

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