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Cheap flights from London Heathrow Airport to Illinois from £281

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 Heathrow Airport to Illinois departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Illinois

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Illinois.
British Airways Logo
09:50 - 15:45LHR-ORD
11h 55m1 stop
British Airways Logo
17:45 - 07:20ORD-LHR
7h 35mdirect
£397British Airways
Find Deal
Fri, 12 Sep - Sat, 27 Sep
Lufthansa Logo
07:25 - 13:55LHR-ORD
12h 30m1 stop
Lufthansa Logo
14:35 - 09:40ORD-LHR
13h 05m1 stop
£398Lufthansa
Find Deal
Thu, 8 May - Sun, 11 May
British Airways Logo
09:50 - 15:45LHR-ORD
11h 55m1 stop
British Airways Logo
22:35 - 12:15ORD-LHR
7h 40mdirect
£399British Airways
Find Deal
Thu, 25 Sep - Mon, 29 Sep
Lufthansa Logo
09:00 - 18:15LHR-ORD
15h 15m1 stop
Lufthansa Logo
13:07 - 06:45ORD-LHR
11h 38m1 stop
£405Lufthansa
Find Deal
Thu, 15 May - Tue, 20 May
Icelandair Logo
13:05 - 21:15LHR-ORD
14h 10m1 stop
Icelandair Logo
19:25 - 11:55ORD-LHR
10h 30m1 stop
£412Icelandair
Find Deal
Wed, 20 Aug - Sat, 13 Sep
Icelandair Logo
13:05 - 18:15LHR-ORD
11h 10m1 stop
Icelandair Logo
19:25 - 11:55ORD-LHR
10h 30m1 stop
£415Icelandair
Find Deal
Thu, 28 Aug - Sun, 7 Sep
Finnair Logo
14:40 - 23:08LHR-ORD
14h 28m2 stops
Finnair Logo
11:50 - 06:15ORD-LHR
12h 25m1 stop
£449Finnair
Find Deal
Fri, 9 May - Sun, 18 May
Finnair Logo
14:40 - 23:08LHR-ORD
14h 28m2 stops
Finnair Logo
11:50 - 06:15ORD-LHR
12h 25m1 stop
£450Finnair
Find Deal
Fri, 9 May - Sun, 18 May
Aer Lingus Logo
07:40 - 18:03LHR-STL
16h 23m2 stops
Aer Lingus Logo
06:35 - 11:10STL-LHR
22h 35m2 stops
£899Aer Lingus
Find Deal
Mon, 13 Oct - Sun, 19 Oct
Aer Lingus Logo
13:25 - 23:49LHR-STL
16h 24m2 stops
Aer Lingus Logo
14:39 - 11:10STL-LHR
14h 31m2 stops
£1,056Aer Lingus
Find Deal
Wed, 6 Aug - Tue, 19 Aug

British Airways flights from London Heathrow Airport to Illinois

Our best British Airways deals on London Heathrow Airport to Illinois flight tickets
British Airways
12 Sept
LHR09:50London Heathrow
11h 55m
1 stop
ORD15:45Chicago O'Hare Intl
27 Sept
ORD17:45Chicago O'Hare Intl
7h 35m
LHR07:20London Heathrow
British Airways
25 Sept
LHR09:50London Heathrow
11h 55m
1 stop
ORD15:45Chicago O'Hare Intl
29 Sept
ORD22:35Chicago O'Hare Intl
7h 40m
LHR12:15London Heathrow
British Airways
18 Sept
LHR09:50London Heathrow
11h 55m
1 stop
ORD15:45Chicago O'Hare Intl
22 Sept
ORD22:35Chicago O'Hare Intl
7h 40m
LHR12:15London Heathrow

Lufthansa flights from London Heathrow Airport to Illinois

Our best Lufthansa deals on London Heathrow Airport to Illinois flight tickets
Lufthansa
8 May
LHR07:25London Heathrow
12h 30m
1 stop
ORD13:55Chicago O'Hare Intl
11 May
ORD14:35Chicago O'Hare Intl
13h 05m
1 stop
LHR09:40London Heathrow
Lufthansa
15 May
LHR09:00London Heathrow
15h 15m
1 stop
ORD18:15Chicago O'Hare Intl
20 May
ORD13:07Chicago O'Hare Intl
11h 38m
1 stop
LHR06:45London Heathrow
Lufthansa
8 May
LHR06:50London Heathrow
11h 10m
1 stop
ORD12:00Chicago O'Hare Intl
20 May
ORD13:07Chicago O'Hare Intl
11h 38m
1 stop
LHR06:45London Heathrow

See travel insights to Illinois from

How to get the cheapest flight ticket from London Heathrow Airport to Illinois

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 cheapest month to fly to Illinois?

The month of February is, on average, the cheapest month to fly to Illinois from London Heathrow Airport, with most prices found around £450. If you aren’t able to travel to Illinois during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £458.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart on your flight to Illinois is on a Wednesday when prices can be found for as low as £618. This is often the case because there is less demand to fly during this day of the week. Flights from London Heathrow Airport to Illinois on a Sunday will generally be more expensive and average around £671. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our data shows that the cheapest London Heathrow Airport to Illinois flights are usually those with departure times in the evening. Our users have found flights to Illinois in the evening for as low as £561. In the afternoon is when there is more demand to fly to Illinois, so prices are often more expensive at around £656 per ticket.

What is the cheapest London Heathrow to Illinois flight route?

Fly from London Heathrow to Chicago O'Hare Intl for the best London Heathrow - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from London Heathrow Airport when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around £556 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from London Heathrow Airport for as low as £527 on momondo.

What cabin class options are available on London Heathrow to Illinois flights?

There are 4 cabin classes available to choose from on London Heathrow to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap London Heathrow Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Illinois

Best price found

£281

Fastest flight time

8h 25m

Direct flights

Every day

Airports in Illinois

2 airports
The best one-way flight to Illinois from London Heathrow Airport in the past 72 hours is £281. The best return flight deal from London Heathrow Airport to Illinois found on momondo in the last 72 hours is £397.
The fastest flight from London Heathrow Airport to Illinois takes 8h 25m
Direct flights go from London Heathrow Airport to Illinois every day.
There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

  • When did momondo last update prices for flights from London Heathrow Airport to Illinois?

    Prices for flights from London Heathrow Airport to Illinois refresh daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Illinois?

  • How old do you have to be to fly from London Heathrow Airport to Illinois?

    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 London Heathrow Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois 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 Illinois. 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 Heathrow Airport to Illinois?


Best airlines flying from London Heathrow Airport to Illinois

Compare and see reviews for airlines that fly from London Heathrow Airport to Illinois with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £348Free CancellationRating
7.0
484 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom £357Free CancellationRating
7.3
1,345 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom £371Free CancellationRating
7.1
1,846 reviews
Search TAP AIR PORTUGAL flights
Austrian AirlinesPriceFrom £410Free CancellationRating
7.5
780 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom £412Free CancellationRating
7.4
8,688 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £416Free CancellationRating
7.4
642 reviews
Search Virgin Atlantic flights
LufthansaPriceFrom £417Free CancellationRating
6.7
7,032 reviews
Search Lufthansa flights
British AirwaysPriceFrom £420Free CancellationRating
6.6
6,820 reviews
Search British Airways flights
Brussels AirlinesPriceFrom £425Free CancellationRating
7.3
345 reviews
Search Brussels Airlines flights
Aer LingusPriceFrom £431Free CancellationRating
7.0
1,070 reviews
Search Aer Lingus flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from London.

Can I find flights from London to Illinois with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Illinois flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Illinois?

Once all potential London to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from London and alert you when they change.


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Popular Cities in Illinois

Popular flights according to clicks in the last 7 days on momondo