Question 1

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

Accepted Answer

It is quick and easy to find flights to Chicago on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Question 2

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

Accepted Answer

Yes. momondo enables you to select and highlight flights to Chicago with this policy.

Question 3

How can momondo help me find flights to Chicago?

Accepted Answer

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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

Yes momondo offers price alerts on flights to Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

Question 5

When is it best to fly to Chicago to go sightseeing?

Accepted Answer

When planning your flight to Chicago, consider that the months of May and June are typically considered the best times to visit if you are looking to go sightseeing. That is when the weather is most cooperative. Sights like Grant Park, Magnificent Mile, and Millennium Park are very popular tourist attractions.

Question 6

How far in advance should I book a flight to Chicago?

Accepted Answer

The ideal time to book your flight to Chicago is 42 days in advance, when prices tend to average £607. However, in the past 72 hours, people saw flights from United Kingdom for as low as £400.

Question 7

Is there an alternative airport near Chicago?

Accepted Answer

Finding an alternative and possibly cheaper destination airport near Chicago is possible. If you are planning a flight to Chicago, consider booking flights to Chicago Midway Airport (9 mi from Chicago city centre) or Chicago Greater Rockford Airport (79 mi from Chicago city centre).

Question 8

Is there a cheaper alternative to flying into Chicago?

Accepted Answer

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in Chicago is Chicago Midway Airport where the average price is £189. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

Question 9

Are there flights to Downtown?

Accepted Answer

Yes, flights to Downtown are served by Chicago’s Chicago O'Hare Intl airport which is 15.7 mi away.

Question 10

What’s the closest airport to Grant Park?

Accepted Answer

The closest airport to Grant Park is Chicago O'Hare Intl, 16.2 mi away.

Question 11

Which airlines fly to Chicago?

Accepted Answer

Based on our data, the most popular airlines that fly to Chicago from United Kingdom are British Airways, Aer Lingus, Icelandair and Lufthansa. There may also be other airline options depending on where in United Kingdom you’re flying from.

Question 12

KLM Flights to Chicago

Accepted Answer

KLM will jet to Chicago around 24 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 £505 have been found from Birmingham to Chicago. KLM has scored 7.8/10 in momondo user reviews.

Question 13

Finnair Flights to Chicago

Accepted Answer

Another popular choice for flights to Chicago is Finnair (7.6/10, 1,430 reviews). Most Finnair flights landing in Chicago will be arriving from London Heathrow, but there are 29 Finnair flights to Chicago from all departure points globally so prices can vary significantly. The best Finnair deal found on momondo this week was £427 (London Heathrow to Chicago, round-trip).

Question 14

When did momondo last update prices for flights to Chicago?

Accepted Answer

Prices for flights to Chicago were last updated today.

Question 15

How many operators does momondo search for flights to Chicago?

Accepted Answer

As of September 2026, there are 20 operators available to choose from for flights to Chicago.

Question 16

How old do you have to be to fly to Chicago?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Chicago.

Question 17

What documentation or ID do you need to fly to Chicago?

Accepted Answer

The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Question 18

What is the cheapest month to fly to Chicago?

Accepted Answer

The cheapest month to fly to Chicago from United Kingdom is in February. Flight prices, which tend to average around £446, 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 from United Kingdom during January instead. Flights to Chicago in January, while not as cheap as those in February, still average around £512.

Question 19

What is the cheapest day to depart on your flight to Chicago?

Accepted Answer

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as £686. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Sunday, with ticket prices averaging around £735.

Question 20

How long does it take to fly to Chicago?

Accepted Answer

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

Question 21

What is the cheapest time of day to depart on your flight to Chicago?

Accepted Answer

Flying to Chicago from United Kingdom at midday is the least expensive time of day to depart. momondo users have found prices as low as £665 when looking at flights departing at midday. Flights in the afternoon are often more expensive, with an average ticket price of £711.

Question 22

How far in advance should I book a flight to Chicago?

Accepted Answer

You are more likely to see cheaper flights to Chicago from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around £658 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from United Kingdom for as low as £602 on momondo.

Question 23

What is the absolute cheapest flight to Chicago?

Accepted Answer

The best price found on momondo to Chicago was £75/pp from Las Vegas, which is 60% cheaper than the average flight price to Chicago. To find the cheapest price to Chicago from your area, use momondo’s Airport-to-Airport Pricing Tool.

CHEAPEST MONTH TO FLY TO CHICAGO FROM LONDON HEATHROW AIRPORT	February	23% cheaper	Flying from London Heathrow Airport to Chicago costs on average just £497 in February
MOST EXPENSIVE MONTH TO FLY TO CHICAGO FROM LONDON HEATHROW AIRPORT	August	26% more expensive	It costs about £816 for flights to Chicago from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO CHICAGO FROM LONDON HEATHROW AIRPORT	October	220% more users visited	More momondo users searched in flights to Chicago from London Heathrow Airport in October than any other month

Best One-Way Price	£288
Best Round-Trip Price	£460
Fastest flight time	13h 40m
Popular in	July

£288 Cheap flights to Chicago

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 departing on 6/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United Kingdom to Chicago

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Recent direct flight deals from the United Kingdom to Chicago

momondo Fare Finder

Use the filters below to find and compare flights to Chicago that are best for you.

See travel insights to Chicago from

Chicago flights insights and trends

What is the cheapest month to fly to Chicago?

What is the absolute cheapest flight to Chicago?

See prices from:

What is the cheapest day to depart on your flight to Chicago?

What is the cheapest time of day to depart on your flight to Chicago?

How far in advance should I book a flight to Chicago?

How long does it take to fly to Chicago?

Cheapest flights to Chicago

Find the cheapest flights to Chicago from your nearest city or airport

Cheap Chicago flight deals and tips

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to Chicago

Travelling to a place near Chicago?

Why use momondo?

An easier way to manage your Chicago trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Chicago

Popular Flights to Chicago

Popular routes according to searches in the past day on momondo

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago

Fly your favourite airline to Chicago

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chicago

List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

Complete your trip to Chicago

Explore popular destinations other users love

According to popular flight searches on momondo this year