What is the cheapest flight from Chicago to London?

In the last 3 days, the lowest price for a flight from Chicago to London was C$ 194 for a one-way ticket and C$ 498 for a round-trip. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Chicago to London?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Chicago to London?

Star Alliance is the only airline alliance operating flights between Chicago and London.

How does KAYAK find such low prices on flights from Chicago to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to London. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Chicago is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Chicago to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Chicago with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

C$ 269 CHEAP FLIGHTS from Chicago to London (CHI - YXU)

CHI - YXU

KAYAK searches hundreds of travel sites at once for deals on flights to London

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Flights Deals

Cheap Flight Deals from Chicago to London (CHI-YXU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Recent round-trip flight deals from Chicago to London

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to London.

Discover the best prices for you by selecting your travel dates on KAYAK.

9:45 p.m. - 2:59 p.m.ORD-YXU

16h 14m2 stops

9:55 a.m. - 2:01 p.m.YXU-ORD

5h 06m1 stop

C$ 689Air Canada

Find Deal

Fri, 13 Jun - Fri, 20 Jun

6:59 p.m. - 7:10 p.m.ORD-YXU

23h 11m2 stops

6:00 a.m. - 6:42 a.m.YXU-ORD

25h 42m2 stops

C$ 695

Find Deal

Fri, 16 May - Fri, 30 May

6:30 p.m. - 9:19 a.m.ORD-YXU

13h 49m1 stop

6:15 a.m. - 9:09 a.m.YXU-ORD

3h 54m1 stop

C$ 703Air Canada

Find Deal

Fri, 13 Jun - Fri, 20 Jun

4:35 p.m. - 7:10 p.m.ORD-YXU

25h 35m3 stops

6:00 a.m. - 11:36 a.m.YXU-ORD

30h 36m2 stops

C$ 710

Find Deal

Fri, 16 May - Fri, 30 May

9:35 p.m. - 5:14 a.m.ORD-YXU

30h 39m3 stops

6:15 a.m. - 9:09 a.m.YXU-ORD

3h 54m1 stop

C$ 711

Find Deal

Fri, 13 Jun - Fri, 20 Jun

3:50 p.m. - 9:28 p.m.ORD-YXU

4h 38m1 stop

9:55 a.m. - 3:04 p.m.YXU-ORD

6h 09m1 stop

C$ 723Air Canada

Find Deal

Fri, 13 Jun - Fri, 20 Jun

9:14 p.m. - 9:18 a.m.ORD-YXU

11h 04m1 stop

9:55 a.m. - 3:04 p.m.YXU-ORD

6h 09m1 stop

C$ 724Air Canada

Find Deal

Fri, 13 Jun - Fri, 20 Jun

9:14 p.m. - 9:18 a.m.ORD-YXU

11h 04m1 stop

3:35 p.m. - 7:29 p.m.YXU-ORD

4h 54m1 stop

C$ 804United Airlines

Find Deal

Thu, 12 Jun - Thu, 19 Jun

9:31 p.m. - 3:03 p.m.ORD-YXU

16h 32m2 stops

6:15 a.m. - 12:01 p.m.YXU-ORD

6h 46m1 stop

C$ 825United Airlines

Find Deal

Fri, 23 May - Fri, 30 May

3:00 p.m. - 9:18 a.m.ORD-YXU

17h 18m2 stops

9:55 a.m. - 11:30 p.m.YXU-ORD

14h 35m2 stops

C$ 839United Airlines

Find Deal

Thu, 12 Jun - Thu, 19 Jun

Useful Info

KAYAK's insights & trends for Chicago to London flights

Get data-powered insights and trends into flights from Chicago to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Chicago to London?

In the past 3 days, the cheapest round-trip tickets from Chicago to London were found on Air Canada (C$ 689) and United Airlines (C$ 804).

Find deals

When to book flights from Chicago to London

Are your dates flexible? Find out the best times to travel from Chicago to London based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Chicago to London?
In the last 3 days, the lowest price for a flight from Chicago to London was C$ 194 for a one-way ticket and C$ 498 for a round-trip.
Which aircraft models fly most regularly from Chicago to London?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Chicago to London?
Star Alliance is the only airline alliance operating flights between Chicago and London.
How does KAYAK find such low prices on flights from Chicago to London?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Chicago to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Chicago with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to London?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Chicago to London

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

London (YXU)

CHI - YXU

C$ 269 Find Cheap Flights from Chicago to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

Cheap Flight Deals from Chicago to London (CHI-YXU)

Recent round-trip flight deals from Chicago to London

Recent one-way flight deals from Chicago to London

KAYAK's insights & trends for Chicago to London flights

Get data-powered insights and trends into flights from Chicago to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Chicago to London?

In the past 3 days, the cheapest round-trip tickets from Chicago to London were found on Air Canada (C$ 689) and United Airlines (C$ 804).

When to book flights from Chicago to London

FAQs for booking flights from Chicago to London

What is the cheapest flight from Chicago to London?

In the last 3 days, the lowest price for a flight from Chicago to London was C$ 194 for a one-way ticket and C$ 498 for a round-trip.

Which aircraft models fly most regularly from Chicago to London?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Chicago to London?

Star Alliance is the only airline alliance operating flights between Chicago and London.

How does KAYAK find such low prices on flights from Chicago to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Chicago to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Chicago with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Chicago to London

Information on your arrival and departure airports

Cabin class types available on flights from Chicago to London

Complete your trip to London with a hotel stay or car rental

Find direct flights to and from Chicago and London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London