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Cheap flights from Illinois to London Heathrow Airport from £177

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ORD — LHR
22 May — 29 May1
1 adult
Wed 22/5
Wed 29/5

How far in advance should I book a flight from Illinois to London Heathrow Airport?

To save on the cost of your flight from Illinois to London Heathrow Airport, book at least 11 days before your planned departure. Booking around this time can save you about 3% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £510 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £525.

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

February is one of the best times of the year to fly to London Heathrow Airport from Illinois. Prices for February average £610 per person but you can even find prices for as low as £343. The most expensive prices can be found in the month of June. Opting for a February flight can save you 58% on your journey compared to booking in June

When is the cheapest time to fly from Illinois to London Heathrow Airport (IL - LHR)?

When flying from Illinois to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap TAP AIR PORTUGAL flights from Illinois to Heathrow

Explore cheap flight options specifically provided by TAP AIR PORTUGAL for the route between Illinois and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.
Peruse some of the lowest-priced TAP AIR PORTUGAL flights we've found from Illinois to London. Come back soon if you're not finding the exact deal you're looking for.
Wed 9/1018:00ORD - LHR
1 stop22h 00mTAP AIR PORTUGAL
Mon 14/1006:00LHR - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 15/5£377
Mon 9/918:00ORD - LHR
1 stop17h 45mTAP AIR PORTUGAL
Mon 23/906:00LHR - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 16/5£381
Sun 6/1018:00ORD - LHR
1 stop22h 55mTAP AIR PORTUGAL
Mon 14/1006:00LHR - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 15/5£384
Wed 6/1119:15ORD - LHR
1 stop16h 15mTAP AIR PORTUGAL
Wed 20/1106:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Deal found 15/5£386
Wed 9/1018:00ORD - LHR
1 stop18h 50mTAP AIR PORTUGAL
Tue 22/1018:45LHR - ORD
1 stop27h 25mTAP AIR PORTUGAL
Deal found 15/5£388
Sun 15/918:00ORD - LHR
1 stop17h 45mTAP AIR PORTUGAL
Mon 23/906:00LHR - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 15/5£389
Mon 30/918:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Tue 15/1019:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 16/5£390
Fri 18/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sat 26/1018:45LHR - ORD
1 stop27h 45mTAP AIR PORTUGAL
Deal found 16/5£397
Mon 21/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Tue 29/1018:30LHR - ORD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 16/5£398

Cheap Finnair flights from Illinois to Heathrow

Explore cheap flight options specifically provided by Finnair for the route between Illinois and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.
Some of the lowest-priced Finnair flights we've found at this time heading from Illinois to London. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Mon 7/1021:15ORD - LHR
Nonstop7h 50mFinnair
Tue 15/1010:30LHR - ORD
1 stop14h 36mFinnair
Deal found 15/5£403
Tue 12/1109:00ORD - LHR
Nonstop7h 40mFinnair
Fri 22/1115:45LHR - ORD
Nonstop9h 00mFinnair
Deal found 15/5£470
Wed 5/608:10ORD - LHR
Nonstop8h 00mFinnair
Wed 19/608:10LHR - ORD
Nonstop8h 35mFinnair
Deal found 15/5£517
Sat 25/508:20ORD - LHR
Nonstop7h 50mFinnair
Thu 30/508:10LHR - ORD
Nonstop8h 35mFinnair
Deal found 15/5£552
Thu 23/508:20ORD - LHR
Nonstop7h 50mFinnair
Thu 30/514:45LHR - ORD
Nonstop8h 35mFinnair
Deal found 16/5£553
Fri 24/508:20ORD - LHR
Nonstop7h 50mFinnair
Thu 30/510:05LHR - ORD
1 stop15h 16mFinnair
Deal found 15/5£561
Fri 24/508:20ORD - LHR
Nonstop7h 50mFinnair
Sun 2/608:10LHR - ORD
Nonstop8h 35mFinnair
Deal found 15/5£592
Sat 25/508:20ORD - LHR
Nonstop7h 50mFinnair
Mon 27/512:15LHR - ORD
Nonstop8h 40mFinnair
Deal found 16/5£592
Wed 22/508:20ORD - LHR
Nonstop7h 50mFinnair
Mon 27/510:05LHR - ORD
1 stop15h 16mFinnair
Deal found 16/5£608

Cheap Illinois to Heathrow flights in May & June 2024

Find cheap flight options from Illinois to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 844,321 searches. Prices were last updated on 17 May 2024.
Scroll through some of the best deals on flights from Illinois to London in 2024. More deals are always being added, so be sure to check back regularly.
Sun 19/514:20ORD - LHR
1 stop11h 35mSWISS
Mon 10/618:40LHR - ORD
1 stop23h 30mSWISS
Deal found 16/5£490
Wed 12/614:45ORD - LHR
1 stop11h 00mIberia
Sun 30/608:10LHR - ORD
Nonstop8h 35mIberia
Deal found 16/5£495
Wed 12/614:45ORD - LHR
1 stop11h 00mIberia
Sun 30/612:30LHR - ORD
1 stop12h 50mIberia
Deal found 16/5£499
Sun 9/619:15ORD - LHR
1 stop18h 10mSWISS
Tue 18/606:00LHR - ORD
1 stop12h 10mSWISS
Deal found 15/5£501
Mon 20/518:00ORD - LHR
Nonstop7h 50mAmerican Airlines
Wed 5/606:10LHR - ORD
1 stop13h 35mAmerican Airlines
Deal found 16/5£502
Sun 19/523:00ORD - LHR
Nonstop7h 45mIberia
Tue 28/520:10LHR - ORD
1 stop24h 10mIberia
Deal found 16/5£503
Tue 4/615:45ORD - LHR
Nonstop8h 10mMultiple Airlines
Tue 11/606:00LHR - ORD
1 stop12h 10mMultiple Airlines
Deal found 15/5£504
Tue 21/515:45ORD - LHR
Nonstop8h 10mMultiple Airlines
Tue 28/506:00LHR - ORD
1 stop12h 10mMultiple Airlines
Deal found 16/5£505
Sun 19/507:30ORD - LHR
1 stop18h 10mUnited Airlines
Tue 28/513:45LHR - ORD
1 stop28h 25mUnited Airlines
Deal found 16/5£506

Illinois to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Illinois and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.
Scroll through some of the best deals on flights from Illinois to London in 2024. More deals are always being added, so be sure to check back regularly.
Mon 9/918:00ORD - LHR
1 stop17h 45mTAP AIR PORTUGAL
Mon 23/906:00LHR - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 16/5£381
Wed 2/1018:00ORD - LHR
1 stop15h 35mTAP AIR PORTUGAL
Tue 22/1019:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 15/5£386
Mon 30/918:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Tue 15/1019:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 16/5£390
Fri 18/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sat 26/1018:45LHR - ORD
1 stop27h 45mTAP AIR PORTUGAL
Deal found 16/5£397
Mon 21/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Tue 29/1018:30LHR - ORD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 16/5£398
Fri 18/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sat 26/1018:45LHR - ORD
1 stop27h 45mTAP AIR PORTUGAL
Deal found 16/5£398
Sun 29/918:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sun 6/1019:50LHR - ORD
1 stop26h 25mTAP AIR PORTUGAL
Deal found 16/5£399
Wed 2/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Mon 21/1006:00LHR - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 15/5£400
Mon 7/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sat 12/1018:45LHR - ORD
1 stop27h 25mTAP AIR PORTUGAL
Deal found 15/5£402

Direct flights to Heathrow from Illinois

Discover direct flight options from Illinois to Heathrow. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.
Take a look at some of the direct flights travelling from Illinois to London in the near future. Those looking to potentially save on 1 or 2-stop flights from Illinois to London should utilise the search form at the top of the page.
Wed 2/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Thu 17/1008:10LHR - ORD
Nonstop8h 35mBritish Airways
Deal found 15/5£469
Wed 2/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Tue 8/1013:10LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£469
Wed 16/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Wed 23/1008:10LHR - ORD
Nonstop8h 35mBritish Airways
Deal found 16/5£477
Tue 8/1019:15ORD - LHR
Nonstop7h 50mBritish Airways
Tue 15/1013:10LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£489
Wed 9/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Tue 15/1011:05LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£491
Sun 18/818:45ORD - LHR
Nonstop8h 15mUnited Airlines
Wed 28/813:05LHR - ORD
Nonstop8h 55mUnited Airlines
Deal found 15/5£493
Tue 3/908:35ORD - LHR
Nonstop7h 35mIberia
Tue 17/908:10LHR - ORD
Nonstop8h 35mIberia
Deal found 16/5£494
Wed 12/618:00ORD - LHR
Nonstop7h 50mIberia
Sun 30/608:10LHR - ORD
Nonstop8h 35mIberia
Deal found 16/5£495
Tue 1/1016:45ORD - LHR
Nonstop7h 50mBritish Airways
Wed 9/1015:35LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£498

Illinois to Heathrow flights leaving soon

Find last-minute flight options from Illinois to Heathrow for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.
Have a look at some of the last-minute flights available departing from Illinois to London. Users should be sure to double check the price, date, and time of their last-minute flight.
Wed 22/508:20ORD - LHR
Nonstop7h 50mAmerican Airlines
Wed 5/606:10LHR - ORD
1 stop13h 35mAmerican Airlines
Deal found 16/5£537
Wed 22/508:20ORD - LHR
Nonstop7h 50mIberia
Wed 29/506:15LHR - ORD
1 stop14h 05mIberia
Deal found 16/5£539
Sat 25/508:20ORD - LHR
Nonstop7h 50mFinnair
Thu 30/508:10LHR - ORD
Nonstop8h 35mFinnair
Deal found 15/5£552
Thu 23/508:20ORD - LHR
Nonstop7h 50mFinnair
Thu 30/514:45LHR - ORD
Nonstop8h 35mFinnair
Deal found 16/5£553
Sat 25/508:20ORD - LHR
Nonstop7h 50mBritish Airways
Mon 3/620:35LHR - ORD
1 stop26h 10mBritish Airways
Deal found 16/5£556
Thu 23/508:20ORD - LHR
Nonstop7h 50mAmerican Airlines
Tue 4/609:15LHR - ORD
1 stop12h 31mAmerican Airlines
Deal found 16/5£559
Fri 24/508:20ORD - LHR
Nonstop7h 50mFinnair
Thu 30/510:05LHR - ORD
1 stop15h 16mFinnair
Deal found 15/5£561
Thu 23/508:20ORD - LHR
Nonstop7h 50mBritish Airways
Mon 10/619:25LHR - ORD
1 stop24h 20mBritish Airways
Deal found 16/5£566
Thu 23/508:20ORD - LHR
Nonstop7h 50mIberia
Sat 21/1209:55LHR - ORD
Nonstop8h 55mIberia
Deal found 16/5£571

One-way flights to Heathrow from Illinois

Search for one-way flight options from Illinois to Heathrow. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.
Some of the best available deals we've found on one-way flights from Illinois to London. Users in need of a round-trip flight from Illinois to London instead should update the search form at the top of page.
Sun 10/1118:30ORD - LHR
1 stop10h 25mIcelandair
Deal found 15/5£177
Tue 5/1118:30ORD - LHR
1 stop18h 50mIcelandair
Deal found 16/5£185
Tue 1/1019:25ORD - LHR
1 stop10h 30mIcelandair
Deal found 15/5£186
Mon 4/1118:30ORD - LHR
1 stop18h 50mIcelandair
Deal found 14/5£187
Sun 3/1118:30ORD - LHR
1 stop10h 25mIcelandair
Deal found 15/5£188
Tue 1/1022:15ORD - LHR
1 stop16h 05mIcelandair
Deal found 15/5£192
Tue 24/922:15ORD - LHR
1 stop16h 05mIcelandair
Deal found 15/5£192
Tue 22/1019:30ORD - LHR
1 stop10h 25mIcelandair
Deal found 16/5£196
Sun 6/1019:30ORD - LHR
1 stop10h 25mIcelandair
Deal found 15/5£197

Find flights from Illinois to Heathrow within your budget

Customise your flight search to find flights from Illinois to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£377 - £455

Route

Depart

Return

Price

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 9/10

1 stop22h 00m

London Heathrow

Mon 14/10

1 stop16h 15m

£377

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 7/10

Nonstop7h 50m

London Heathrow

Tue 15/10

1 stop14h 36m

£403

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 8/11

2 stops31h 25m

London Heathrow

Mon 11/11

1 stop17h 25m

£410

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 6/11

2 stops17h 35m

London Heathrow

Tue 12/11

2 stops25h 45m

£420

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 3/9

1 stop18h 55m

London Heathrow

Tue 17/9

1 stop11h 10m

£429

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 1/10

1 stop11h 45m

London Heathrow

Thu 31/10

1 stop13h 20m

£447

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 5/11

1 stop10h 10m

London Heathrow

Tue 12/11

1 stop13h 10m

£451

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 7/10

Nonstop7h 50m

London Heathrow

Mon 14/10

1 stop22h 30m

£454

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 6/11

Nonstop7h 40m

London Heathrow

Fri 15/11

1 stop14h 00m

£455

Flights are sorted by cheapest first

Deals found on 15/5

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 17 May 2024.
To help decide which airline to fly from Illinois to London, see what other customers have to say about TAP AIR PORTUGAL, Finnair and Scandinavian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very Good
10,673 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,994 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Finnair
7.8
Good
1,376 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.7
Good
735 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Illinois to London Heathrow Airport for under £400 on Cheapflights?

    Yes, there are multiple flights from Illinois to London Heathrow Airport for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £377, but on average you can expect to pay £397.

  • Are there nonstop flights from Illinois to London Heathrow Airport for under £500 on Cheapflights?

    Cheapflights has at least 20 direct flights from Illinois to London Heathrow Airport under £500. A good price for a nonstop flight from Illinois to London Heathrow Airport is less than £502.

  • Are there last-minute flights available from Illinois to London Heathrow Airport for under £600?

    There are currently 20+ open flights from Illinois to London Heathrow Airport within the next 7 days for less than £600.

  • What days are direct flights available from Illinois to London Heathrow Airport?

    Direct flights can be found on the following days: Sunday, Monday, Friday, Saturday.

  • How many flights depart from Illinois to London Heathrow Airport on average per day?

    6 flight departures from Illinois to London Heathrow Airport per day on average.
    Evening (6pm - Midnight) - 100% of flight departures

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

    For as low as £377, TAP AIR PORTUGAL can have you in London Heathrow Airport from Illinois in 7h 50m. The distance from Illinois to London Heathrow Airport is about 3964 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to London Heathrow Airport?

    The most popular route from Illinois to London Heathrow Airport is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago Midway - London Heathrow or Lambert-St Louis - London Heathrow.

  • What are the most popular airlines that fly from Illinois to London Heathrow Airport?

    Consider American Airlines, Finnair or British Airways when booking your flight. These represent the most popular airlines when flying from Illinois to London Heathrow Airport.

  • What are the most reliable airlines from Illinois to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Illinois to London Heathrow Airport consider choosing EL AL (92%), Air Canada (78%) or Austrian Airlines (78%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to London Heathrow Airport?

    On average you can expect to pay £1,353 for a flight from Illinois to London Heathrow Airport. The cheapest flight overall is £355 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at £359.

  • What does ORD to LHR mean?

    Great question - ORD to LHR just means Chicago O'Hare Intl Airport to London Heathrow Airport. Now you’ll know what these unique codes when you look for flights! Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Illinois to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Illinois to Heathrow that include hotel bookings?

    Yes. In addition to deals on Illinois to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Heathrow.

  • Can I find deals for business class flights from Illinois to Heathrow?

    Yes. Cheapflights offers flight deals from Illinois to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Illinois to Heathrow that allow pets onboard?

    Many airlines flying from Illinois to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Heathrow?

    Yes, you can often find last-minute deals on Illinois to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to London Heathrow Airport flight deals updated?

    The Illinois to London Heathrow Airport flight deals you see on this page were last updated on 16/5.

See more FAQs

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Top 10 airlines flying from Illinois to Heathrow

Discover the top 10 airlines that operate flights from Illinois to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 17 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£347Average£403FlexibilityNo cancel feeOn-time77%
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LufthansaCheapest£387Average£626FlexibilityNo cancel feeOn-time76%
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United AirlinesCheapest£403Average£704FlexibilityNo cancel feeOn-time69%
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Virgin AtlanticCheapest£406Average£425FlexibilityNo cancel feeOn-time72%
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Aer LingusCheapest£469Average£681FlexibilityNo cancel feeOn-timeN/A
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IberiaCheapest£495Average£675FlexibilityNo cancel feeOn-time77%
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British AirwaysCheapest£496Average£688FlexibilityNo cancel feeOn-time70%
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TAP AIR PORTUGALCheapest£530Average£696FlexibilityNo cancel feeOn-timeN/A
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American AirlinesCheapest£578Average£770FlexibilityNo cancel feeOn-time71%
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FinnairCheapest£632Average£766FlexibilityNo cancel feeOn-time76%
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Search flights from Illinois to Heathrow by cabin class

Find flights from Illinois to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Illinois to Heathrow

Find hourly flight availability from Illinois to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 May 2024.
1%of flight departuresEarly morningMidnight to 6 am
10%of flight departuresMorning6 am to noon
49%of flight departuresAfternoonNoon to 6 pm
40%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois to Heathrow?

When you search for this flight from Illinois to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Illinois.

Can Cheapflights find flights from Illinois to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Illinois to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Illinois to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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