Cheap flights from Chicago to the United Kingdom from £133
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to the United Kingdom departing on 21/7. 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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How to get the cheapest flight ticket from Chicago to United Kingdom
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to United Kingdom?
The cheapest month to fly to United Kingdom from Chicago is in February. Flight prices, which tend to average around £475, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from Chicago during the month January is also very affordable. Most momondo users find prices during this month for around £486.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart from Chicago to United Kingdom is on a Wednesday. Travellers who choose to depart for United Kingdom on a Wednesday will often find tickets for as low as £532. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to United Kingdom for around £666.
What is the cheapest time of day to depart on your flight to United Kingdom?
The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £599. Try not to purchase tickets at midday because they tend to be around £684. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Chicago to United Kingdom flight route?
Fly from Chicago O'Hare Intl to London Heathrow for the best Chicago - United Kingdom flight prices
How far in advance should I book a flight to United Kingdom?
You are more likely to see cheaper flights to United Kingdom from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £588 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Chicago for as low as £524 on momondo.
What cabin class options are available on Chicago to United Kingdom flights?
There are 4 cabin classes available to choose from on Chicago to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Chicago to United Kingdom?
Icelandair and TAP AIR PORTUGAL are the most popular carriers operating from Chicago to United Kingdom
Which airlines fly to United Kingdom?
British Airways, Iberia and Icelandair are the top three most popular airlines that fly to United Kingdom from Chicago according to our data. British Airways is the first choice among our users, with 57% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 9 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
How many flights depart from Chicago to United Kingdom on average per day?
49 flights are operational daily from Chicago to United Kingdom as of July 2025. The most popular departure time for this route is 16:00, with 64% of flights per day taking off in the evening.
How many flights depart from Chicago to United Kingdom on average per week?
The number of flights available between Chicago and United Kingdom is 349 per week as of July 2025. The most frequent departure day is Wed, with 17% of weekly flights leaving on this day.
Cheap Chicago to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to United Kingdom
Best price found | £133 |
|---|---|
Fastest flight time | 9h 10m |
Direct flights | Every day |
Airports in United Kingdom | 8 airports |
When did momondo last update prices for flights from Chicago to United Kingdom?
Prices for flights from Chicago to United Kingdom were last updated today.
How many operators does momondo search for flights from Chicago to United Kingdom?
As of July 2025, there are 9 operators available to choose from for flights from Chicago to United Kingdom.
How old do you have to be to fly from Chicago to United Kingdom?
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 to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The necessary travel and health documents for your United Kingdom 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.
What is the most popular plane model from Chicago to United Kingdom?
Based on momondo bookings for flights between Chicago and United Kingdom, the leading plane model is Boeing 787-9 Dreamliner, making up 41.23% of the total bookings. Other popular models include Boeing 777 with 18.36%, Boeing 787-10 Dreamliner with 17.61%, and Boeing 767-300 with 13.11%.
Best airlines flying from Chicago to United Kingdom
Compare and see reviews for airlines that fly from Chicago to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £254 | Free Cancellation | Rating 7.0 514 reviews | |||
| PriceFrom £323 | Free Cancellation | Rating 6.6 7,093 reviews | |||
| PriceFrom £405 | Free Cancellation | Rating 7.1 1,144 reviews | |||
| PriceFrom £406 | Free Cancellation | Rating 7.4 654 reviews | |||
| PriceFrom £407 | Free Cancellation | Rating 7.6 1,306 reviews | |||
| PriceFrom £439 | Free Cancellation | Rating 7.0 2,820 reviews | |||
| PriceFrom £455 | Free Cancellation | Rating 7.4 8,844 reviews | |||
| PriceFrom £477 | Free Cancellation | Rating 6.8 7,207 reviews | |||
| PriceFrom £505 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to United Kingdom?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to United Kingdom . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Chicago to United Kingdom with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to United Kingdom from Chicago with this policy.
How can momondo help me find flights from Chicago to United Kingdom?
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 from Chicago to United Kingdom.
I’m not ready to book a flight from Chicago to United Kingdom right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to United Kingdom from 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.