Cheap flights from London Heathrow to Chicago O'hare International Airport

from as little as £392

4 nights in Chicago, departing London Heathrow on 26 / Jan / 2025 with Icelandair (price found 6 hours ago)

Subject to availability, prices correct of the last 24 hours
Chicago O'hare International Airport

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The London Heathrow / Chicago O'hare International Airport route

All 6348 km of it

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Chicago O'hare International Airport flight facts

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Alternative flights from the UK to Chicago O'hare International Airport

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Chicago O'hare International Airport

Today alone, Netflights has searched over 20,229 flights. 26 / Jan / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Chicago O'hare International Airport route. There are around 1,110 flights on any given week from the UK to Chicago O'hare International Airport and the cheapest month to fly right now is January.

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Min / Max Temperature (°C)
LOWEST

-9 °C

AVG

10 °C

HIGHEST

29 °C

Rainfall (mm)
LOWEST

43.2 mm

AVG

78.5 mm

HIGHEST

124.5 mm

Key facts about Chicago O'hare International Airport

How to get cheap flights from London Heathrow to Chicago O'hare International Airport

Tips and advice from our flight experts

We help you find cheap flights by searching thousands of routes, across hundreds of airlines, so that you can easily compare the prices. Icelandair is normally the cheapest airline for flying from London Heathrow to Chicago O'hare International Airport. But we recommend that you check all possible airlines, to be sure of getting a great deal.

The most popular airlines to fly with are Air Canada, British Airways & Lufthansa, but they're not always the cheapest. If you want a bargain, try widening your search to include other airports in Chicago and more flights. Generally, flights are cheapest in January, when it's low season

There are 1,110 direct and indirect flights between London Heathrow and Chicago O'hare International Airport every week, but the prices vary throughout the year. You can expect prices for both flights and accommodation to be much higher in Chicago during peak season. So, if you're planning to go during the holidays, it's best to book well in advance.

Today, we've gone through 20,229 flights across the globe, to help you find a bargain. Did you know you can compare accommodation prices too? If you need somewhere to stay in Chicago, take a look at our hotel options to get an idea of prices.

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