$678 Cheap Alaska Airlines flights Chicago (ORD) to London (LHR)

View $678 flight on Mon, Nov 2, 2026Opens in a new window

$678 Cheap Alaska Airlines flights Chicago (ORD) to London (LHR)

Prices were available within the past 7 days and start at $678 for one-way flights and $2,086 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Feb 9 - Tue, Feb 10
ORD
Chicago
LHR
London
$2,086 Roundtrip, found 2 days ago
$2,086
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Feb 9 from Chicago to London, returning Tue, Feb 10, priced at $2,086 found 2 days ago

Find the cheapest month to fly from Chicago (ORD) to London (LHR)

November is typically the cheapest month to fly

From $449 - $717 per traveler.
Flights from Chicago (ORD) to London (LHR)
Origin airport
O'Hare Intl.
Destination airport
Heathrow
Distance
6307 km
Average flight time
13 hours 55 mins