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Cheap Flights from Chicago to London
Quick answer: Round-trip economy fares from Chicago (ORD) to London typically run about $500–$900, with business class from around $2,100. The nonstop flight takes about 8 hours. Cheapest months are January–March. Call FlyOfinder at +1-878-223-0710.
Chicago is a major transatlantic gateway with several carriers to London — and where premium-cabin deals surface. Call +1-878-223-0710, 24/7.
Fares at a glance
Live fares update automatically below. Ranges shown are typical.
| Cabin | Typical round-trip | Cheapest months |
|---|---|---|
| Economy | $500–$900 | Jan–Mar |
| Premium economy | $1,000–$1,600 | Jan–Feb |
| Business | $2,100–$3,800 | Jan–Feb |
Airlines flying Chicago to London
O'Hare is a United and American hub, so this route is well served nonstop to Heathrow by American, United, British Airways and Virgin Atlantic.
Flight details
- Depart Chicago O'Hare (ORD); arrive London Heathrow (LHR).
- Distance ~3,940 miles; nonstop time ~8 hours eastbound.
- London is 6 hours ahead of Chicago.
When to book & cheapest time to fly
Lowest January–March and the late-fall shoulder; summer and December are peak. Four carriers competing nonstop keep Chicago–London fares keen.
Why book with FlyOfinder
- Unpublished fares across the competing carriers.
- Multi-city and open-jaw routing.
- Human help with the whole trip.
Talk to a real specialist any time at +1-878-223-0710.
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