Cheap flights from Chicago O'Hare to London Heathrow
Chicago O'Hare to London Heathrow (ORD → LHR). We are tracking 8 fares on this route.
Cheapest tracked fare $321 · typical price $550 · you save about $229 (42%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
JetBlue
2026-09-21
1 stop
$321
Icelandair
2026-10-20
1 stop
$321
JetBlue
2026-09-20
1 stop
$325
JetBlue
2026-09-11
1 stop
$356
JetBlue
2026-09-16
1 stop
$374
JetBlue
2026-09-15
1 stop
$417
JetBlue
2026-09-10
1 stop
$418
JetBlue
2026-09-05
1 stop
$452
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from Chicago O'Hare to London Heathrow get?
The cheapest fare we have tracked on this route is $321, compared with a typical $550 for a trip of this distance.
Is it cheaper to fly to London Heathrow from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Chicago O'Hare to London Heathrow cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.