EazAir
Route guide

Cheap Flights from Chicago to London

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Travellers

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Planning a trip from Chicago to London? The average flight time on this route is 7h 55m. The lowest fare we recorded on this route recently was $327 (last checked Oct 4, 2026); today's live fare for your dates can differ. February is the cheapest month recorded for this route in our cached fare data.

Frequently asked questions

How long is the flight from Chicago to London?
The average flight time for this route is 7h 55m. Itineraries with a connection usually run longer depending on layover length and airline.
What is the cheapest month to fly to London?
February is the cheapest month recorded for this route in our cached fare data. The lowest fare we recorded on this route recently was $327 (last checked Oct 4, 2026).