Q: What is the typical price of a round-trip flight between Chicago O'Hare Intl Airport and London Heathrow Airport?

Prices are currently low for flights on this route. Typical prices usually range from £460 to £558. The lowest price recently found on this route was £378.

Question 1

What is the cheapest airline that flies from Chicago O'Hare Intl to London Heathrow?

Accepted Answer

Scandinavian Airlines, JetBlue, and British Airways are the most popular carriers operating from Chicago O'Hare Intl to London Heathrow

Question 2

What is the cheapest day to depart on your flight to London Heathrow Airport?

Accepted Answer

On average, the least expensive day to fly to London Heathrow Airport from Chicago O'Hare Intl Airport is on a Sunday. momondo users have found tickets for Sunday departures for as low as £490. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £649.

Question 3

What is the typical price of a round-trip flight between Chicago O'Hare Intl Airport and London Heathrow Airport?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £460 to £558.
The lowest price recently found on this route was £378.

Question 4

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

Accepted Answer

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to London Heathrow Airport in the evening for as low as £550. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £562 on average. Flights to London Heathrow Airport from Chicago O'Hare Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 5

How many flights depart from Chicago O'Hare Intl Airport to London Heathrow Airport on average per week?

Accepted Answer

The number of flights available between Chicago O'Hare Intl Airport and London Heathrow Airport is 307 per week as of January 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

Question 6

How many flights depart from Chicago O'Hare Intl Airport to London Heathrow Airport on average per day?

Accepted Answer

As of January 2026, there are 43 flights per day flying from Chicago O'Hare Intl Airport to London Heathrow Airport. The most common time of day flights depart is 17:00, with 55% of flights taking off in the evening.

Question 7

What cabin class options are available on Chicago O'Hare Intl to London Heathrow flights?

Accepted Answer

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 8

Which airlines fly to London Heathrow Airport?

Accepted Answer

British Airways, Iberia and Aer Lingus are the top three most popular airlines that fly to London Heathrow Airport from Chicago O'Hare Intl Airport according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 7 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Question 9

Can stopping save me money on Chicago O'Hare Intl Airport to London Heathrow Airport flights?

Accepted Answer

You could potentially save up to 19% on your flight if you consider stops on a Chicago O'Hare Intl Airport to London Heathrow Airport flight.

Question 10

How often are flights from Chicago to London delayed?

Accepted Answer

Historically, on average around 25% of flights between Chicago and London have experienced a delay on any given week. The average delay length over the past 12 months has been 167 minutes.

Question 11

What is the most punctual flight time for Chicago to London flights?

Accepted Answer

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Question 12

Which airline has the best punctuality record on Chicago to London flights?

Accepted Answer

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 25% of their flights experiencing any sort of delay.

Question 13

How far in advance should I book a flight to London Heathrow Airport?

Accepted Answer

You are more likely to see cheaper flights to London Heathrow Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £571 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Chicago O'Hare Intl Airport for as low as £501 on momondo.

Question 14

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 15

What is the cheapest Chicago O'Hare Intl to London Heathrow flight route?

Accepted Answer

Fly from Chicago O'Hare Intl to London Heathrow for the best Chicago O'Hare Intl - London Heathrow flight prices

Question 16

What is the cheapest month to fly to London Heathrow Airport?

Accepted Answer

In general, January is the cheapest month to fly from Chicago O'Hare Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £475. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from Chicago O'Hare Intl Airport averaging around £485.

Question 17

How have Chicago O'Hare Intl Airport to London Heathrow Airport flight prices changed over time?

Accepted Answer

As of January 2026, prices for Chicago O'Hare Intl Airport to London Heathrow Airport flights are approximately 86% more expensive when compared to flights at the same time last year.

Question 18

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to London Heathrow Airport?

Accepted Answer

Prices for flights from Chicago O'Hare Intl Airport to London Heathrow Airport were last updated today.

Question 19

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to London Heathrow Airport?

Accepted Answer

As of January 2026, there are 7 operators available to choose from for flights from Chicago O'Hare Intl Airport to London Heathrow Airport.

Question 20

How old do you have to be to fly from Chicago O'Hare Intl Airport to London Heathrow Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to London Heathrow Airport.

Question 21

What documentation or ID do you need to fly to London Heathrow Airport?

Accepted Answer

The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best price found	£290
Fastest flight time	7h 40m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom £350	Free Cancellation	Rating 6.8 7,749 reviews	Search Lufthansa flights
American Airlines	PriceFrom £377	Free Cancellation	Rating 7.2 11,200 reviews	Search American Airlines flights
Finnair	PriceFrom £405	Free Cancellation	Rating 7.6 1,356 reviews	Search Finnair flights
British Airways	PriceFrom £413	Free Cancellation	Rating 6.7 7,704 reviews	Search British Airways flights
Aer Lingus	PriceFrom £439	Free Cancellation	Rating 7.2 1,442 reviews	Search Aer Lingus flights
Iberia	PriceFrom £444	Free Cancellation	Rating 7.0 3,099 reviews	Search Iberia flights
United Airlines	PriceFrom £452	Free Cancellation	Rating 7.4 9,206 reviews	Search United Airlines flights

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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to London Heathrow Airport

What is the typical price of a round-trip flight between Chicago O'Hare Intl Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Chicago O'Hare Intl to London Heathrow flight route?

Fly from Chicago O'Hare Intl to London Heathrow for the best Chicago O'Hare Intl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on Chicago O'Hare Intl to London Heathrow flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to London Heathrow Airport flights?

You could potentially save up to 19% on your flight if you consider stops on a Chicago O'Hare Intl Airport to London Heathrow Airport flight.

How have Chicago O'Hare Intl Airport to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for Chicago O'Hare Intl Airport to London Heathrow Airport flights are approximately 86% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Chicago O'Hare Intl to London Heathrow?

Scandinavian Airlines, JetBlue, and British Airways are the most popular carriers operating from Chicago O'Hare Intl to London Heathrow

Which airlines fly to London Heathrow Airport?

How often are flights from Chicago to London delayed?

Historically, on average around 25% of flights between Chicago and London have experienced a delay on any given week. The average delay length over the past 12 months has been 167 minutes.

What is the most punctual flight time for Chicago to London flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Chicago to London flights?

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 25% of their flights experiencing any sort of delay.

How many flights depart from Chicago O'Hare Intl Airport to London Heathrow Airport on average per day?

As of January 2026, there are 43 flights per day flying from Chicago O'Hare Intl Airport to London Heathrow Airport. The most common time of day flights depart is 17:00, with 55% of flights taking off in the evening.

How many flights depart from Chicago O'Hare Intl Airport to London Heathrow Airport on average per week?

The number of flights available between Chicago O'Hare Intl Airport and London Heathrow Airport is 307 per week as of January 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

When to book flights from Chicago O'Hare Intl Airport to London Heathrow Airport

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How many operators does momondo search for flights from Chicago O'Hare Intl Airport to London Heathrow Airport?

How old do you have to be to fly from Chicago O'Hare Intl Airport to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

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What is the most popular airline from Chicago O'Hare Intl Airport to London Heathrow Airport?

Best airlines flying from Chicago O'Hare Intl Airport to London Heathrow Airport

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