Are there any direct flights from London Heathrow Airport to Illinois?

Yes - direct flights currently operate from London Heathrow Airport to Chicago O'Hare International Airport in Illinois.

What is the average price of a flight from London Heathrow Airport to Illinois?

We looked at all of the upcoming return flights from London Heathrow Airport to Illinois we could find over the next 12 months. It looks like $764 is the best price. This is good, compared to the average Illinois ticket price of $1,348.

What is the cheapest month to fly from London Heathrow Airport to Illinois?

The cheapest month to fly from London Heathrow Airport to Springfield Airport is currently June . The cheapest month to fly from London Heathrow Airport to Greater Peoria Airport is currently September . The cheapest month to fly from London Heathrow Airport to Moline Airport is currently June . And the cheapest month to fly from London Heathrow Airport to Chicago O'Hare International Airport is usually February .

Which upcoming date is cheapest to fly from London Heathrow Airport to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London Heathrow Airport to Illinois on Sunday, 9 February 2025 .

If I'm flying from London Heathrow Airport, where in Illinois is cheapest to fly into?

If you're flying from London Heathrow, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International.

How long is the flight from London Heathrow Airport to Illinois?

The average flight time between London Heathrow Airport and Illinois is 8 hours and 56 minutes.

Flights from London Heathrow Airport to Illinois

Flight deals from London Heathrow Airport to Illinois

Looking for cheap tickets from London Heathrow Airport to Illinois, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Chicago.$763 per passenger.Departing Sun, 9 Feb, returning Sat, 15 Feb.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Sun, 9 Feb, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Sat, 15 Feb, arriving in London Heathrow.Price includes taxes and charges.From $763, select.

Peoria.$1,689 per passenger.Departing Tue, 17 Sep, returning Sun, 22 Sep.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 17 Sep, arriving in Greater Peoria.Inbound indirect flight with United, departs from Greater Peoria on Sun, 22 Sep, arriving in London Heathrow.Price includes taxes and charges.From $1,689, select.

Moline.$1,983 per passenger.Departing Sat, 22 Jun, returning Thu, 27 Jun.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Sat, 22 Jun, arriving in Moline.Inbound indirect flight with United, departs from Moline on Thu, 27 Jun, arriving in London Heathrow.Price includes taxes and charges.From $1,983, select.

Bloomington.$2,025 per passenger.Departing Wed, 19 Jun, returning Tue, 25 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from London Heathrow on Wed, 19 Jun, arriving in Central Illinois Regional.Inbound indirect flight with Delta, departs from Central Illinois Regional on Tue, 25 Jun, arriving in London Heathrow.Price includes taxes and charges.From $2,025, select.

Decatur.$2,092 per passenger.Departing Fri, 14 Jun, returning Sun, 23 Jun.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Fri, 14 Jun, arriving in Decatur.Inbound indirect flight with United, departs from Decatur on Sun, 23 Jun, arriving in London Heathrow.Price includes taxes and charges.From $2,092, select.

Springfield.$2,104 per passenger.Departing Fri, 21 Jun, returning Thu, 27 Jun.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Fri, 21 Jun, arriving in Springfield.Inbound indirect flight with British Airways, departs from Springfield on Thu, 27 Jun, arriving in London Heathrow.Price includes taxes and charges.From $2,104, select.

Champaign.$2,109 per passenger.Departing Fri, 14 Jun, returning Sun, 23 Jun.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Fri, 14 Jun, arriving in Champaign.Inbound indirect flight with British Airways, departs from Champaign on Sun, 23 Jun, arriving in London Heathrow.Price includes taxes and charges.From $2,109, select.

Flying from London Heathrow Airport to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	$763, Chicago
Cheapest month to fly	February
Average flight time	8 hrs, 56 mins
Average flights per week	410
Most popular airline	Iberia

How to find cheap flights from London Heathrow Airport to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from London Heathrow Airport to Illinois. Other savvy travellers recently found return flights from $764 and one-way tickets from $852. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in February

The cheapest time to fly from London Heathrow Airport to Illinois is currently February.

Fly on a Sunday

From our data, we can see that Sunday seems to be the cheapest time to fly from London Heathrow Airport to Illinois.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from London Heathrow Airport to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from London Heathrow Airport to your chosen airport in Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the London Heathrow Airport to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

: Yes - direct flights currently operate from London Heathrow Airport to Chicago O'Hare International Airport in Illinois.
: We looked at all of the upcoming return flights from London Heathrow Airport to Illinois we could find over the next 12 months. It looks like $764 is the best price. This is good, compared to the average Illinois ticket price of $1,348.
: The cheapest month to fly from London Heathrow Airport to Springfield Airport is currently June.
The cheapest month to fly from London Heathrow Airport to Greater Peoria Airport is currently September.
The cheapest month to fly from London Heathrow Airport to Moline Airport is currently June.
And the cheapest month to fly from London Heathrow Airport to Chicago O'Hare International Airport is usually February.
: After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London Heathrow Airport to Illinois on Sunday, 9 February 2025.
: If you're flying from London Heathrow, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International.
: The average flight time between London Heathrow Airport and Illinois is 8 hours and 56 minutes.