Cheap flights from London Heathrow to Chicago

Q: How much are flights normally?

£ 390. If you see flights from London Heathrow to Chicago for less than this, you've found a good deal.

Q: What are the cheapest airlines?

American Airlines, JetBlue, Delta Air Lines, Icelandair, KLM. These airlines usually offer the cheapest flights from London Heathrow to Chicago.

Q: Can I fly direct to Chicago?

Finnair, British Airways, Iberia Airlines, Brussels Airlines. You can fly non-stop from London Heathrow to Chicago with these airlines.

Q: What airlines fly indirectly?

Air Canada, Aer Lingus, Lufthansa, KLM, Virgin Atlantic. These airlines fly from London Heathrow to Chicago, but you’ll have at least one layover.

Q: How long is the flight?

8 hrs 50 mins. This is the shortest flight time from London Heathrow to Chicago.

Q: How long should I stay in Chicago?

4 days. Most people spend this amount of time in Chicago.

from as little as £422

14 nights in Chicago, departing London Heathrow on 15 / Jan / 2025 with JetBlue (price found 34 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London Heathrow to Chicago

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The London Heathrow / Chicago route

All 6353 km of it

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Chicago flight facts

What you need to know

How much are flights normally?

£ 390

If you see flights from London Heathrow to Chicago for less than this, you've found a good deal.

What are the cheapest airlines?

American Airlines
JetBlue
Delta Air Lines
Icelandair
KLM

These airlines usually offer the cheapest flights from London Heathrow to Chicago.

Can I fly direct to Chicago?

Finnair
British Airways
Iberia Airlines
Brussels Airlines

You can fly non-stop from London Heathrow to Chicago with these airlines.

What airlines fly indirectly?

Air Canada
Aer Lingus
Lufthansa
KLM
Virgin Atlantic

These airlines fly from London Heathrow to Chicago, but you’ll have at least one layover.

How long is the flight?

8 hrs 50 mins

This is the shortest flight time from London Heathrow to Chicago.

How long should I stay in Chicago?

4 days

Most people spend this amount of time in Chicago.

Alternative flights from the UK to Chicago

Check out prices for other routes

London to Chicago

from £422 pp

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Manchester to Chicago

from £537 pp

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Edinburgh to Chicago

from £471 pp

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Birmingham to Chicago

from £560 pp

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London Gatwick to Chicago

from £447 pp

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London Stansted to Chicago

from £1,122 pp

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London City Airport to Chicago

from £571 pp

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Alternative flights from London Heathrow

You might find cheaper flights nearby

Chicago Midway Airport from London Heathrow

from £598 pp

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Chicago O'hare International Airport from London Heathrow

from £422 pp

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Today alone, Netflights has searched over 19,169 flights. 15 / Jan / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Chicago route. There are around 1,207 flights on any given week from the UK to Chicago and the cheapest month to fly right now is January.

Not suitable? Try running another search or viewing all cheap flight deals.

Key facts about Chicago

Currency

United States dollar

Language

English

Timezone

6 hrs behind GMT

How to get cheap flights from London Heathrow to Chicago

Tips and advice from our flight experts

Search and book cheap flights from London Heathrow to Chicago with Netflights. Today alone, we've scanned 19,169 flights worldwide. There are 16 airlines offering flights in and out of Chicago, the most popular being Finnair.

Normally, Chicago O'hare International Airport is the cheapest airport to fly into Chicago. This isn’t necessarily the case for your chosen dates, but it’s worth bearing in mind. There are 1,207 flights every week to Chicago, and the flight from London Heathrow normally takes about 11 hrs 45 mins.

Prices currently start from £422. This is based on your search for flights from London Heathrow, but there are other airports nearby. Try adjusting your search to include surrounding departure airports, to see if you can find a better rate.

As well as helping you out with flights, Netflights can find you great prices on accommodation and car hire too.