Direct (nonstop) flights from Chicago to London
3 airlines fly nonstop from Chicago O Hare International (ORD) to Heathrow (LHR). It's 3,953 miles (6,362 km), about 7h 55m in the air. Operated by American Airlines, British Airways, United Airlines.
American Airlines
British Airways
United Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AA
American Airlines
BA
British Airways
UA
United Airlines
Alternative Routes
Other ways to fly from Chicago to London with one stop · direct emits 604 kg CO₂ per passenger
Looking for the return flight?
LHR → ORD: Flights from London to ChicagoOther direct flights from Chicago
Direct flights from London (LHR)
Frequently Asked Questions
How long is the direct flight from Chicago to London?
A nonstop flight from Chicago (ORD) to London (LHR) takes approximately 7 hours and 55 minutes. The distance is 3,953 miles (6,362 km).
Which airlines fly nonstop from Chicago to London?
3 airlines: American Airlines, British Airways, United Airlines.
Is there a nonstop flight from Chicago to London?
Yes. 3 airlines: American Airlines, British Airways, United Airlines.
How far is Chicago from London?
The flight distance from Chicago to London is 3,953 miles (6,362 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Rome.
What is the time difference between Chicago and London?
London is 6 hours ahead of Chicago. (America/Chicago vs Europe/London.)
Will I experience jet lag flying from Chicago to London?
Probably — 6-hour time difference means moderate jet lag. Expect about 1 day of adjustment per hour of shift. Flying eastward is generally harder to adjust to.
What type of aircraft flies from Chicago to London?
At 7h 55m, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from USA to United Kingdom?
Depends on your passport. Check with the United Kingdom embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Chicago to London?
Roughly 604 kg CO2 per passenger one-way. That's about the same as driving 3,020 km.
Is the return flight from London to Chicago also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Chicago to London?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Chicago O Hare International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.