Flights from Chicago to London
Chicago to London (ORD–LHR) is a nonstop intercontinental air route between North America and Europe. It is served nonstop by 3 airlines. Use Flyroz to compare live fares, then book directly with the airline or travel site.
Airports for this journey
International route- From
- O'Hare Intl (ORD)
- Chicago, USA
- To
- Heathrow (LHR)
- London, UK
- Route context
- International airport pair
- Information review
Flyroz prepares this airport-pair search. Current results come from partner providers; booking and payment take place on the selected provider website.
Cheapest one-way from
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Estimated journey duration
Nonstop flights from Chicago (ORD) to London (LHR) take roughly 8h 08m–9h 19m in the air, estimated from the ~6,344 km great-circle distance. This is an estimate, not a published block time — long-haul times vary with winds (eastbound is usually faster), aircraft and routing. Allow extra time for international formalities.
Airlines and current route context
Nonstop ORD–LHR service is operated by American Airlines, British Airways and United Airlines. Carriers were verified against FlightConnections (accessed 2026-07-13); schedules change over time, so check current results for your dates.
Direct and connecting guidance
Current direct and connecting options depend on your dates and are shown by Flyroz’s search partners.
Timing and booking guidance
Fares tend to be higher in the northern-summer and year-end peaks and around holidays, and lower in the shoulder seasons (spring and autumn). Booking well ahead and keeping dates flexible generally gives more choice on long-haul routes.
How booking works
Flyroz prepares the search. Aviasales or Kiwi.com displays current results, and you complete booking and payment on that provider's website under its terms. Flyroz does not operate airlines or issue tickets.
Related routes
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