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Cheap flight tickets from Chicago to London

Compare Chicago to London flight deals

Find the cheapest month or even day of the year to fly to London

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Flight deals from Chicago to London

Looking for a cheap last-minute deal or the best return flight from Chicago to London Airport? If you want to travel next month, return fares start from RM2,118. Find the lowest prices on one-way and return tickets right here.
London.RM1,083 per passenger.Departing Fri, 9 Oct.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Fri, 9 Oct, arriving in London.Price includes taxes and charges.From RM1,083, select.
London.RM1,090 per passenger.Departing Thu, 7 May.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Thu, 7 May, arriving in London.Price includes taxes and charges.From RM1,090, select.
London.RM1,113 per passenger.Departing Wed, 24 Jun.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Wed, 24 Jun, arriving in London.Price includes taxes and charges.From RM1,113, select.
London.RM1,116 per passenger.Departing Wed, 1 Jul.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Wed, 1 Jul, arriving in London.Price includes taxes and charges.From RM1,116, select.
London.RM1,132 per passenger.Departing Sat, 29 Aug.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Sat, 29 Aug, arriving in London.Price includes taxes and charges.From RM1,132, select.
London.RM1,734 per passenger.Departing Tue, 28 Apr.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Tue, 28 Apr, arriving in London.Price includes taxes and charges.From RM1,734, select.

Find the cheapest month to fly from Chicago to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to London flights are currently cheapest in October.
Apr
from RM1,734
May
from RM1,090
Jun
from RM1,113
Jul
from RM1,116
Aug
from RM1,132
Sep
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Oct
from RM1,083
Nov
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Dec
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Jan
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Feb
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Mar
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Chicago to London: Alternative routes

Compare routes from Chicago to London below. You may find an airport to fly into that's cheaper, faster, or easier than London.

London

10km from central London
Closest
from RM1,083
Search flights

Kitchener / Waterloo

88km from central London
Cheapest
from RM854
Search flights

Chicago to London: Flight information

The things to know before you go.
Cheapest flight foundRM1,083
Cheapest month to flyOctober

Finding cheap flights from Chicago to London: Frequently asked questions

The best price we found for a return flight from Chicago to London is RM2,118. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago to London. But we found flights with one stop from RM2,118.
As of April 2026, there are no flights flying from Chicago to London.
The cheapest month to fly from Chicago to London is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to London Airport on Saturday, 9 May 2026.
No airlines currently offer direct flights between Chicago and London Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to London is Air Canada .

Flying from Chicago to London International Airport (YXU): What you need to know

  • London International Airport is located in London. The city follows the UTC-5 timezone and is one hour ahead of Chicago.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your flight from Chicago to YXU.

  • If you're going away during a peak month like July, head to the airport even earlier. You'll want to arrive up to four hours before an international flight and two hours ahead of domestic departures. Security lines will be longer during peak periods like Thanksgiving and Christmas.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • Stopovers are the ideal opportunity to take a break from travelling and maybe even explore a different city. When searching for cheap flights from Chicago to YXU leaving from Chicago O'Hare International Airport (ORD), deselect the 'Direct flights only' box to discover where you can stop along the way. Your journey might pause in:

    • Toronto Pearson International Airport (YYZ)

    • Calgary International Airport (YYC)

    • Cancun International Airport (CUN)

  • Located around 27 kilometres from central Chicago, ORD can be reached in about 30 minutes by car, depending on traffic. The journey by public transport will take roughly 45 minutes.

  • Planning to catch an early flight from Chicago to London International Airport? Avoid the last-minute rush to the terminal (and enjoy a little extra shut-eye) by staying at one of these hotels close to Chicago O'Hare International Airport:

  • When it comes to Chicago O'Hare International Airport's on-time performance, 70% of flights complete their journey on time.

  • ORD is located at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • MDW is around 16 kilometres from central Chicago. It takes 25 minutes or so to get to the airport in a car from the city centre. Public transport takes roughly 30 minutes.

  • Start your holiday early with an extra night away from home. Before catching your Chicago to YXU flight, stay in one of these hotels close to Chicago Midway International Airport:

  • Chicago Midway International Airport has an on-time performance rate of 76%. This figure provides insight into how frequently flights departing from this airport reach their destination on schedule.

  • MDW is located at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • RFD is roughly 145 kilometres from central Chicago. The drive from the city centre to the terminal takes about 1 hour 40 minutes. If you're thinking about using public transport, you can expect a journey of around 2 hours.

  • Make departure day worry-free — stay close to Chicago Rockford International Airport and know you'll be at your boarding gate with time to spare. Settle in at one of these hotels the day before if you've booked an early Chicago to London International Airport flight:

  • The on-time performance record of RFD is 71%. In simpler terms, that's how often flights that depart this airport arrive at their destination as planned.

  • Chicago Rockford International Airport is located at 2 Airport Cir.

About London International Airport (YXU)

Getting from London International Airport (YXU) to central London

  • Central London is around 10 kilometres from London International Airport. Travel times by car hire or taxi will vary depending on time of day and traffic conditions, so do some research ahead of time.

  • If you're travelling on public transport, expect a journey of roughly 35 minutes.

How to find the cheapest flights from Chicago to London International Airport (YXU)

  • The cheapest price we've found for a one-way ticket from Chicago to London International Airport is RM1,083. For a return flight on this route, the best price is RM2,118. Depending on the availability when you book, these fares could change.

  • Don't leave things to the last moment. You're more likely to find cheap flights from Chicago to YXU if you book ahead. Airlines often have some fantastic early bird rates.

  • Affordable Chicago to London International Airport tickets are easier to find if you're not locked into specific dates. Use the 'Whole month' tool to compare fares across the month and then choose the cheapest day.

  • There's no need to search every day to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as a better deal comes up on plane tickets from Chicago to YXU.

  • Discover the best deal on a flight from Chicago to London International Airport with the help of the filters. Choose your ideal departure and arrival times, airlines and number of stops. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest.'

The best time to fly from Chicago to London International Airport (YXU)

  • July is when most people book flights from Chicago to London International Airport (YXU). Visit London in November if you'd rather avoid peak season.

  • The warmest month in London is July, with temperatures ranging between 13ºC (55ºF) and 27ºC (81ºF). Book your Chicago to YXU plane ticket then if that's your ideal forecast.

  • Look for cheap tickets from Chicago to London International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -13ºC (9ºF) and 2ºC (36ºF).

More about London

  • Once you've booked your flight from Chicago to London International Airport, choose a hotel that puts you where you want to be. Make one of these accommodation options your base for exploring London:

  • Every great holiday has to include a little sightseeing. Forks of the Thames River, Fanshawe Pioneer Village and Storybook Gardens are essential stops on your London itinerary.

Explore more of Canada

  • Toronto is just one of the many places in Canada waiting to be explored once you've seen London. Around 161 kilometres away to the northeast, its top attractions include CN Tower, The Top CN Tower and Royal Ontario Museum.

  • If you're interested in discovering another major destination in Canada, head for Mississauga, roughly 137 kilometres northeast of London. Lake Ontario, Living Arts Centre and Rattray Marsh Conservation Area are the start of reasons to visit.

Plan the rest of your trip from Chicago to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.