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 round-trip flights from London Heathrow Airport to Illinois we could find over the next 12 months. It looks like $451 is the best price. This is good, compared to the average Illinois ticket price of $880.

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

The cheapest month to fly from London Heathrow Airport to Champaign Airport is currently June . 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 Central Illinois Regional Airport is currently June . And the cheapest month to fly from London Heathrow Airport to Quincy Airport is usually May .

On which upcoming date is it cheapest to fly from London Heathrow Airport to Illinois?

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, February 9, 2025 .

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

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 flights from London Heathrow Airport to Illinois, or a last-minute trip? Find the cheapest prices on one-way and round-trip flights right here.

Chicago.$451 per passenger.Departing Sun, Feb 9, returning Mon, Feb 24.Round-trip flight with Vueling Airlines and Air France.Outbound indirect flight with Vueling Airlines, departing from London Heathrow on Sun, Feb 9, arriving in Chicago O'Hare International.Inbound indirect flight with Air France, departing from Chicago O'Hare International on Mon, Feb 24, arriving in London Heathrow.Price includes taxes and charges.From $451, select.

Peoria.$1,032 per passenger.Departing Tue, Sep 17, returning Sun, Sep 22.Round-trip flight with United.Outbound indirect flight with United, departing from London Heathrow on Tue, Sep 17, arriving in Greater Peoria.Inbound indirect flight with United, departing from Greater Peoria on Sun, Sep 22, arriving in London Heathrow.Price includes taxes and charges.From $1,032, select.

Quincy.$1,065 per passenger.Departing Thu, May 30, returning Wed, Jun 5.Round-trip flight with Scandinavian Airlines and Southern Airways Express.Outbound indirect flight with Scandinavian Airlines, departing from London Heathrow on Thu, May 30, arriving in Quincy.Inbound indirect flight with Southern Airways Express, departing from Quincy on Wed, Jun 5, arriving in London Heathrow.Price includes taxes and charges.From $1,065, select.

Moline.$1,213 per passenger.Departing Sat, Jun 22, returning Thu, Jun 27.Round-trip flight with United.Outbound indirect flight with United, departing from London Heathrow on Sat, Jun 22, arriving in Moline.Inbound indirect flight with United, departing from Moline on Thu, Jun 27, arriving in London Heathrow.Price includes taxes and charges.From $1,213, select.

Bloomington.$1,238 per passenger.Departing Wed, Jun 19, returning Tue, Jun 25.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from London Heathrow on Wed, Jun 19, arriving in Central Illinois Regional.Inbound indirect flight with Delta, departing from Central Illinois Regional on Tue, Jun 25, arriving in London Heathrow.Price includes taxes and charges.From $1,238, select.

Decatur.$1,279 per passenger.Departing Fri, Jun 14, returning Sun, Jun 23.Round-trip flight with United.Outbound indirect flight with United, departing from London Heathrow on Fri, Jun 14, arriving in Decatur.Inbound indirect flight with United, departing from Decatur on Sun, Jun 23, arriving in London Heathrow.Price includes taxes and charges.From $1,279, select.

Springfield.$1,286 per passenger.Departing Fri, Jun 21, returning Thu, Jun 27.Round-trip flight with British Airways.Outbound indirect flight with British Airways, departing from London Heathrow on Fri, Jun 21, arriving in Springfield.Inbound indirect flight with British Airways, departing from Springfield on Thu, Jun 27, arriving in London Heathrow.Price includes taxes and charges.From $1,286, select.

Champaign.$1,290 per passenger.Departing Fri, Jun 14, returning Sun, Jun 23.Round-trip flight with British Airways.Outbound indirect flight with British Airways, departing from London Heathrow on Fri, Jun 14, arriving in Champaign.Inbound indirect flight with British Airways, departing from Champaign on Sun, Jun 23, arriving in London Heathrow.Price includes taxes and charges.From $1,290, select.

Flying from London Heathrow Airport to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	$451, Chicago
Cheapest month to fly	February
Average flight time	8 hrs, 56 mins
Average flights per week	776
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 travelers recently found round-trip flights from $451 and one-way tickets from $222. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in September

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

Fly on a Thursday

From our data, we can see that Thursday 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 flight prices go up and down

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 plane 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 round-trip flights from London Heathrow Airport to Illinois we could find over the next 12 months. It looks like $451 is the best price. This is good, compared to the average Illinois ticket price of $880.
: The cheapest month to fly from London Heathrow Airport to Champaign Airport is currently June.
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 Central Illinois Regional Airport is currently June.
And the cheapest month to fly from London Heathrow Airport to Quincy Airport is usually May.
: 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, February 9, 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.