Cheap flights from the United Kingdom to Chicago from £188
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Chicago departing on 15/9. 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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1 adult
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SWISS flights from United Kingdom to Chicago O'Hare Intl Airport
Our best SWISS deals on United Kingdom to Chicago O'Hare Intl Airport flight tickets
SWISS![SWISS]()
9 Sept![SWISS]()
15 Sept
LGW18:35London Gatwick
24h 20m
1 stop
ORD12:55Chicago O'Hare Intl
ORD19:05Chicago O'Hare Intl
16h 45m
1 stop
LGW17:50London Gatwick
SWISS![SWISS]()
4 Nov![SWISS]()
11 Nov
LCY09:15London City
13h 00m
1 stop
ORD16:15Chicago O'Hare Intl
ORD19:05Chicago O'Hare Intl
11h 45m
1 stop
LCY12:50London City
British Airways flights from United Kingdom to Chicago O'Hare Intl Airport
Our best British Airways deals on United Kingdom to Chicago O'Hare Intl Airport flight tickets
British Airways![British Airways]()
14 Sept![British Airways]()
22 Sept
LHR09:50London Heathrow
11h 55m
1 stop
ORD15:45Chicago O'Hare Intl
ORD22:35Chicago O'Hare Intl
7h 40m
LHR12:15London Heathrow
British Airways![British Airways]()
11 Sept![British Airways]()
20 Sept
LHR06:20London Heathrow
15h 25m
1 stop
ORD15:45Chicago O'Hare Intl
ORD13:59Chicago O'Hare Intl
10h 21m
1 stop
LHR06:20London Heathrow
See travel insights to Chicago from
How to get the cheapest flight ticket from United Kingdom to Chicago O'Hare Intl Airport
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
Prices
Airlines
Other information
What is the cheapest month to fly to Chicago O'Hare Intl Airport?
The cheapest month to fly to Chicago O'Hare Intl Airport from United Kingdom is in February. Flight prices, which tend to average around £426, 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 March instead. Flights to Chicago O'Hare Intl Airport in March, while not as cheap as those in February, still average around £488.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
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 £605. 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 £664.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest time of day to fly to Chicago O'Hare Intl Airport is in the evening when flights can be purchased for as low as £560. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £663.
What is the cheapest United Kingdom to Chicago O'Hare Intl flight route?
Fly from London Heathrow to Chicago O'Hare Intl for the best United Kingdom - Chicago O'Hare Intl flight prices
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from United Kingdom when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around £546 when searching 13 weeks out. 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 £523 on momondo.
What cabin class options are available on United Kingdom to Chicago O'Hare Intl flights?
There are 4 cabin classes available to choose from on United Kingdom to Chicago O'Hare Intl 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 United Kingdom to Chicago O'Hare Intl?
Lufthansa and TAP AIR PORTUGAL are the most popular carriers operating from United Kingdom to Chicago O'Hare Intl
Which airlines fly to Chicago O'Hare Intl Airport?
British Airways, Aer Lingus and Lufthansa 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 51% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 16 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from United Kingdom to Chicago O'Hare Intl Airport on average per day?
55 flights are operational daily from United Kingdom to Chicago O'Hare Intl Airport as of June 2025. The most popular departure time for this route is 11:00, with 50% of flights per day taking off in the afternoon.
How many flights depart from United Kingdom to Chicago O'Hare Intl Airport on average per week?
386 flights are operational weekly from United Kingdom to Chicago O'Hare Intl Airport as of June 2025. The most popular departure day for this route is Sat, with 15% of flights per week taking off on this day.
Cheap United Kingdom to Chicago O'Hare Intl Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Chicago O'Hare Intl Airport
When did momondo last update prices for flights from United Kingdom to Chicago O'Hare Intl Airport?
Prices for flights from United Kingdom to Chicago O'Hare Intl Airport were last updated today.
How many operators does momondo search for flights from United Kingdom to Chicago O'Hare Intl Airport?
There are 16 operators available for flights from United Kingdom to Chicago O'Hare Intl Airport as of June 2025.
How old do you have to be to fly from United Kingdom to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The necessary travel and health documents for your Chicago O'Hare Intl Airport 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 United Kingdom to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between United Kingdom and Chicago O'Hare Intl Airport, the leading plane model is Boeing 767-300, making up 40.87% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 19.17%, Boeing 777 with 15.12%, and Boeing 777-300ER with 7.32%.
Best airlines flying from United Kingdom to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from United Kingdom to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £310 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom £324 | Free Cancellation | Rating 7.1 1,118 reviews | |||
| PriceFrom £333 | Free Cancellation | Rating 7.5 1,466 reviews | |||
| PriceFrom £350 | Free Cancellation | Rating 7.3 1,393 reviews | |||
| PriceFrom £364 | Free Cancellation | Rating 7.1 1,893 reviews | |||
| PriceFrom £374 | Free Cancellation | Rating 6.6 7,028 reviews | |||
| PriceFrom £381 | Free Cancellation | Rating 7.4 653 reviews | |||
| PriceFrom £390 | Free Cancellation | Rating 7.4 355 reviews | |||
| PriceFrom £396 | Free Cancellation | Rating 6.8 7,152 reviews | |||
| PriceFrom £397 | Free Cancellation | Rating 7.6 804 reviews |
Travelling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsEvanston
Northbrook
Schaumburg
Itasca
Lake Geneva
Rosemont
Glenview
Joliet
Oak Brook
Elgin
Oakbrook Terrace
Lincolnshire
Why use momondo?
Why should I use momondo to find a flight deal from United Kingdom to Chicago?
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 from United Kingdom to Chicago for you.
Can I find flights from United Kingdom to Chicago with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Chicago from United Kingdom with this policy.
How can momondo help me find flights from United Kingdom to Chicago?
momondo provides multiple filters to help you find the best flight to Chicago from United Kingdom. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from United Kingdom to Chicago right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Chicago from United Kingdom. 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.
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