Cheap flights from London to Chicago from £196
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Chicago departing on 2/9. 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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TAP AIR PORTUGAL flights from London to Chicago O'Hare Intl Airport
Our best TAP AIR PORTUGAL deals on London to Chicago O'Hare Intl Airport flight tickets
British Airways flights from London to Chicago O'Hare Intl Airport
Our best British Airways deals on London to Chicago O'Hare Intl Airport flight tickets
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How to get the cheapest flight ticket from London 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
What is the typical price of a round-trip flight between London and Chicago O'Hare Intl Airport?
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 London is in February. Flight prices, which tend to average around £425, 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 London 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 London 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 £666.
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 £559. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £664.
What is the cheapest London to Chicago O'Hare Intl flight route?
Fly from London Heathrow to Chicago O'Hare Intl for the best London - 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 London 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 London for as low as £523 on momondo.
What cabin class options are available on London to Chicago O'Hare Intl flights?
There are 4 cabin classes available to choose from on London 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.
Can stopping save me money on London to Chicago O'Hare Intl Airport flights?
No. A direct flight is the cheapest option for a flight between London to Chicago O'Hare Intl Airport.
How have London to Chicago O'Hare Intl Airport flight prices changed over time?
As of June 2025, prices for London to Chicago O'Hare Intl Airport flights are approximately 4% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from London to Chicago O'Hare Intl?
TAP AIR PORTUGAL and Aer Lingus are the most popular carriers operating from London to Chicago O'Hare Intl
Which airlines fly to Chicago O'Hare Intl Airport?
British Airways, Finnair and Lufthansa are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from London according to our data. British Airways is the first choice among our users, with 62% 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 London to Chicago O'Hare Intl Airport on average per day?
The number of flights available between London and Chicago O'Hare Intl Airport is 51 per day as of June 2025. The most frequent departure time is 14:00, with 53% of daily flights leaving in the afternoon.
How many flights depart from London to Chicago O'Hare Intl Airport on average per week?
The number of flights available between London and Chicago O'Hare Intl Airport is 362 per week as of June 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.
When to book flights from London to Chicago O'Hare Intl Airport
Cheap London to Chicago O'Hare Intl Airport (LON to ORD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Chicago O'Hare Intl Airport
How far is London to Chicago O'Hare Intl by plane?
There are 3950.9 mi between London and Chicago O'Hare Intl. In terms of flight time, this usually takes a little over 8h 25m.
When did momondo last update prices for flights from London to Chicago O'Hare Intl Airport?
Prices for flights from London to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London to Chicago O'Hare Intl Airport?
As of June 2025, there are 16 operators available to choose from for flights from London to Chicago O'Hare Intl Airport.
How old do you have to be to fly from London to Chicago O'Hare Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between London and Chicago O'Hare Intl Airport, the leading plane model is Boeing 767-300, making up 40.03% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 20.47%, Boeing 777 with 15.62%, and Boeing 777-300ER with 7.67%.
What is the most popular airline from London to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked airline on the route from London to Chicago O'Hare Intl Airport is British Airways, representing 44% of all bookings. The subsequent popular airlines are Lufthansa at 11%, Finnair at 11%, and Icelandair at 9%.
Best airlines flying from London to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from London to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £310 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom £350 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom £363 | Free Cancellation | Rating 7.1 1,887 reviews | |||
| PriceFrom £381 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £389 | Free Cancellation | Rating 7.4 355 reviews | |||
| PriceFrom £397 | Free Cancellation | Rating 7.6 802 reviews | |||
| PriceFrom £397 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom £398 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom £400 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom £404 | Free Cancellation | Rating 6.6 7,011 reviews |
Austrian Airlines Flights From London to Chicago O'Hare Intl Airport
The lowest priced Austrian Airlines flight from London to Chicago O'Hare Intl Airport from the last 72 hours was £539. Generally, Austrian Airlines has 21 flights on this route every week with an average price of £761. Austrian Airlines is rated 7.6/10 by our users.
Finnair Flights From London to Chicago O'Hare Intl Airport
Finnair (7.6/10 from 1,290 reviews) operates around 33 flights from London to Chicago O'Hare Intl Airport in any given week. The average Finnair airfare for this route is around £789, with deals from around £600 rare but found on momondo. Referenced prices are for round-trip London to Chicago O'Hare Intl Airport flight searches in the last 72 hours.
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Why should I use momondo to find a flight deal from London to Chicago?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Chicago. momondo saves you time and could save you money on your trip.
Can I find flights from London to Chicago with flexible booking policies on momondo?
Yes. All flights to Chicago from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to Chicago?
momondo helps you find the best flight between London and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from London to Chicago right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.