Question 1

Why should I use momondo to find a flight deal to Chicago?

Accepted Answer

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

Question 2

Can I find flights to Chicago with flexible booking policies on momondo?

Accepted Answer

Yes. momondo allows you to filter the results for flights to Chicago to just show those with flexible booking policies.

Question 3

How can momondo help me find flights to Chicago?

Accepted Answer

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Chicago.

Question 4

I’m not ready to book a flight to Chicago right now. Can momondo alert me if prices change?

Accepted Answer

Of course. momondo tracks the price of Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

Question 5

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

Accepted Answer

In general, when looking for the cheapest flight to Chicago O'Hare Intl Airport, try to choose a flight departing in February for the best deal.

Question 6

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

Accepted Answer

From most locations, booking your flights to Chicago O'Hare Intl Airport around 63 days prior to your departure date finds the best deals.

Question 7

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

Accepted Answer

From most locations, the cheapest flights to Chicago O'Hare Intl Airport are found on a Wednesday. Booking a Sunday departure is usually the most expensive.

Question 8

What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?

Accepted Answer

On average you can find the best deals on plane tickets to Chicago O'Hare Intl Airport when looking for flights with Midday departure times.

Question 9

Is there an alternative airport near Chicago O'Hare Intl Airport?

Accepted Answer

Chicago Midway Airport or Chicago Greater Rockford Airport can be an alternative airport used for travel to Chicago.

Question 10

Is there a cheaper alternative to flying into Chicago?

Accepted Answer

Chicago Midway Airport has an average price of £188 per person and is typically the cheapest airport to fly into when visiting Chicago. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

Question 11

Which airlines fly to Chicago O'Hare Intl Airport?

Accepted Answer

For flights from United Kingdom to Chicago O'Hare Intl Airport, most momondo users will book with popular airlines such as British Airways, Aer Lingus, Icelandair and Lufthansa. Depending on what airport you fly from, you may have other airlines to choose from.

Question 12

KLM Flights to Chicago O'Hare Intl Airport

Accepted Answer

KLM will jet to Chicago O'Hare Intl Airport around 16 times in an average week. Where you fly from will dictate what kind of deals you can get for KLM, but prices as low as £530 have been found from Birmingham to Chicago O'Hare Intl Airport. KLM has scored 7.8/10 in momondo user reviews.

Question 13

Finnair Flights to Chicago O'Hare Intl Airport

Accepted Answer

£434 is the best return Finnair deal to Chicago O'Hare Intl Airport found on momondo in the last few days. The deal departed from London Heathrow. Finnair has 28 flights to Chicago O'Hare Intl Airport most weeks, with prices varying by availability. 1,432 momondo users have reviewed Finnair, scoring the airline a 7.6/10 on average.

Question 14

Which airlines fly to Chicago O'Hare Intl Airport?

Accepted Answer

There are 17 airlines that fly to Chicago O'Hare Intl Airport on a routine basis, but British Airways, Aer Lingus and Icelandair happen to be the most popular among our users. In the past year, 42% of those who searched for flights to Chicago O'Hare Intl Airport looked to travel with British Airways, making this airline the top choice among momondo travellers.

Question 15

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

Accepted Answer

Prices for flights to Chicago O'Hare Intl Airport are updated daily.

Question 16

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

Accepted Answer

The number of operators available for flights to Chicago O'Hare Intl Airport is 19 as of September 2026.

Question 17

How old do you have to be to fly to Chicago O'Hare Intl 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 to Chicago O'Hare Intl Airport.

Question 18

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

Accepted Answer

The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Question 19

Which airlines fly to Chicago O'Hare Intl Airport?

Accepted Answer

British Airways, Aer Lingus and Icelandair are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from United Kingdom according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 17 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

Question 20

What cabin class options are available on United Kingdom to Chicago O'Hare Intl Airport flights?

Accepted Answer

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

Question 21

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

Accepted Answer

45 flights are operational daily from United Kingdom to Chicago O'Hare Intl Airport as of September 2026. The most popular departure time for this route is 11:00, with 56% of flights per day taking off at midday.

Question 22

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

Accepted Answer

The cheapest month to fly to Chicago O'Hare Intl Airport from United Kingdom is in February. Flight prices, which tend to average around £522, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Chicago O'Hare Intl Airport from United Kingdom during January instead. Flights to Chicago O'Hare Intl Airport in January, while not as cheap as those in February, still average around £555.

Question 23

What is the cheapest United Kingdom to Chicago O'Hare Intl flight route?

Accepted Answer

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

Question 24

How long does it take to fly to Chicago O'Hare Intl Airport?

Accepted Answer

On average, it takes 8h 40m to fly from United Kingdom to Chicago O'Hare Intl Airport if you fly out of London Heathrow (the most popular airport in United Kingdom) and into Chicago O'Hare Intl (the most popular airport in Chicago O'Hare Intl Airport). If you’re flying out of Manchester and into Chicago O'Hare Intl, then the flight time is around 10h 50m.

Question 25

What is the cheapest airline that flies from United Kingdom to Chicago O'Hare Intl?

Accepted Answer

SWISS, United Airlines, and JetBlue are the most popular carriers operating from United Kingdom to Chicago O'Hare Intl

Question 26

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

Accepted Answer

320 flights are operational weekly from United Kingdom to Chicago O'Hare Intl Airport as of September 2026. The most popular departure day for this route is Wed, with 14% of flights per week taking off on this day.

Question 27

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

Accepted Answer

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around £672 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from United Kingdom for as low as £611 on momondo.

Question 28

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Accepted Answer

The cheapest time of day to fly to Chicago O'Hare Intl Airport is at midday when flights can be purchased for as low as £677. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £726.

Question 29

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

Accepted Answer

The cheapest day to depart from United Kingdom to Chicago O'Hare Intl Airport is on a Wednesday. Travellers who choose to depart for Chicago O'Hare Intl Airport on a Wednesday will often find tickets for as low as £697. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Chicago O'Hare Intl Airport on Sunday is £753.

CHEAPEST MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORT	February	27% cheaper	Flying from London Heathrow Airport to Chicago O'Hare Intl Airport costs on average just £493 in February
MOST EXPENSIVE MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORT	August	25% more expensive	It costs about £845 for flights to Chicago O'Hare Intl Airport from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORT	July	351% more users visited	More momondo users searched in flights to Chicago O'Hare Intl Airport from London Heathrow Airport in July than any other month

Best One-Way Price	£291
Best Round-Trip Price	£396
Fastest flight time	14h 30m
Popular in	August

£286 Cheap flights to Chicago O'Hare Intl Airport

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Chicago O'Hare Intl Airport departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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