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Cheap flights from Illinois to Heathrow (LHR) from $232

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 10/6. 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
May 17 — May 241
From?
To?
Fri 5/17
Fri 5/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Users have found that booking a flight from Illinois to London Heathrow Airport at least 11 days early can save you up to 3% on average compared to booking a flight this week. If booking 11 days before your flight isn’t an option for you, users have found flights from Illinois to London Heathrow Airport for as little as $646 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $666 for flights departing within the next 3 days.

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

Flights from Illinois to London Heathrow Airport lean towards being more expensive in June. Prices are generally better when you fly from Illinois to London Heathrow Airport in February, with the cheapest ticket starting at $435.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to London Heathrow Airport as you normally would.

Cheap British Airways flights from Illinois to Heathrow

Explore cheap flight options specifically provided by British Airways 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 2,659,571 searches. Data last updated May 12, 2024.
Consider these cheap British Airways flights we've found departing from Illinois to London. Make sure to check back often as deals are often changing.
Mon 6/108:10 amORD - LHR
Nonstop8h 00mBritish Airways
Wed 6/268:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/12$446
Tue 7/28:10 amORD - LHR
Nonstop8h 00mBritish Airways
Tue 7/98:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/11$447
Wed 6/128:10 amORD - LHR
Nonstop8h 00mBritish Airways
Sat 6/228:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/11$452
Wed 6/128:10 amORD - LHR
Nonstop8h 00mBritish Airways
Sun 6/239:15 amLHR - ORD
1 stop12h 50mBritish Airways
Deal found 5/12$455
Mon 6/108:10 amORD - LHR
Nonstop8h 00mBritish Airways
Wed 6/2611:10 amLHR - ORD
1 stop14h 29mBritish Airways
Deal found 5/12$456
Tue 7/28:10 amORD - LHR
Nonstop8h 00mBritish Airways
Wed 7/109:45 amLHR - ORD
1 stop12h 00mBritish Airways
Deal found 5/11$457
Tue 6/258:10 amORD - LHR
Nonstop8h 00mBritish Airways
Sun 6/309:15 amLHR - ORD
1 stop12h 50mBritish Airways
Deal found 5/11$460
Sun 6/308:10 amORD - LHR
Nonstop8h 00mBritish Airways
Sat 7/139:15 amLHR - ORD
1 stop14h 34mBritish Airways
Deal found 5/11$461
Sat 6/298:10 amORD - LHR
Nonstop8h 00mBritish Airways
Mon 7/89:45 amLHR - ORD
1 stop12h 00mBritish Airways
Deal found 5/11$462

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 2,659,571 searches. Data last updated May 12, 2024.
Have a look at some of the cheapest available Finnair flights departing from Illinois and landing in London. Ensure the flight price, dates, time, and airline match your criteria before you book.
Mon 9/231:20 pmORD - LHR
1 stop12h 40mFinnair
Wed 10/212:15 pmLHR - ORD
Nonstop8h 55mFinnair
Deal found 5/11$479
Wed 6/58:10 amORD - LHR
Nonstop8h 00mFinnair
Wed 6/128:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/12$505
Wed 5/298:20 amORD - LHR
Nonstop7h 50mFinnair
Wed 6/58:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/11$506
Tue 8/2710:40 pmORD - LHR
Nonstop7h 35mFinnair
Sat 9/142:25 pmLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/11$510
Mon 9/236:00 pmORD - LHR
Nonstop7h 50mFinnair
Mon 10/78:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/11$514
Tue 8/271:20 pmORD - LHR
1 stop12h 40mFinnair
Sat 9/148:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/11$524
Wed 6/58:10 amORD - LHR
Nonstop8h 00mFinnair
Wed 6/1210:30 amLHR - ORD
1 stop14h 49mFinnair
Deal found 5/12$525
Wed 5/298:20 amORD - LHR
Nonstop7h 50mFinnair
Wed 6/510:30 amLHR - ORD
1 stop15h 09mFinnair
Deal found 5/11$526
Mon 9/231:20 pmORD - LHR
1 stop12h 40mFinnair
Mon 10/78:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/11$529

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 2,659,571 searches. Prices were last updated on May 12, 2024.
These are some of the most attractive deals on flights from Illinois to London in 2024. Check back in a little while for more flight options.
Mon 5/139:32 amMDW - LHR
1 stop15h 13mDelta
Tue 11/266:20 amLHR - MDW
2 stops16h 43mDelta
Deal found 5/12$633
Mon 5/131:21 pmMDW - LHR
1 stop11h 24mDelta
Tue 5/218:40 amLHR - MDW
2 stops15h 27mDelta
Deal found 5/12$634
Mon 5/131:21 pmMDW - LHR
1 stop11h 24mDelta
Tue 5/211:55 pmLHR - MDW
1 stop14h 06mDelta
Deal found 5/12$639
Sat 5/189:16 pmORD - LHR
1 stop29h 19mUnited Airlines
Tue 6/412:05 pmLHR - ORD
1 stop30h 05mUnited Airlines
Deal found 5/12$645
Sun 5/193:45 pmORD - LHR
Nonstop8h 10mUnited Airlines
Wed 5/296:50 amLHR - ORD
1 stop11h 10mUnited Airlines
Deal found 5/12$646
Fri 5/175:55 pmORD - LHR
1 stop21h 00mUnited Airlines
Sun 5/194:40 pmLHR - ORD
2 stops21h 40mUnited Airlines
Deal found 5/11$648
Tue 5/146:50 pmORD - LHR
Nonstop8h 10mUnited Airlines
Mon 5/2710:50 amLHR - ORD
1 stop31h 25mUnited Airlines
Deal found 5/11$650
Mon 5/206:05 pmORD - LHR
1 stop10h 35mUnited Airlines
Fri 5/316:50 amLHR - ORD
1 stop11h 10mUnited Airlines
Deal found 5/12$651
Tue 5/212:02 pmORD - LHR
1 stop16h 13mDelta
Fri 6/79:00 amLHR - ORD
1 stop12h 00mDelta
Deal found 5/11$653

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 2,659,571 searches. Data last updated May 12, 2024.
These are some of the most attractive deals on flights from Illinois to London in 2024. Check back in a little while for more flight options.
Tue 10/222:00 pmMDW - LHR
1 stop11h 15mDelta
Fri 11/16:20 amLHR - MDW
2 stops16h 45mDelta
Deal found 5/10$601
Wed 10/91:10 pmMDW - LHR
1 stop11h 35mDelta
Wed 10/236:15 amLHR - MDW
2 stops16h 48mDelta
Deal found 5/12$602
Tue 11/56:15 pmMDW - LHR
1 stop10h 55mDelta
Tue 11/128:40 amLHR - MDW
2 stops15h 25mDelta
Deal found 5/11$604
Wed 10/232:00 pmMDW - LHR
1 stop11h 15mVirgin Atlantic
Tue 10/299:10 amLHR - MDW
1 stop13h 55mVirgin Atlantic
Deal found 5/11$608
Mon 5/139:32 amMDW - LHR
1 stop15h 13mDelta
Tue 11/266:20 amLHR - MDW
2 stops16h 43mDelta
Deal found 5/12$633
Mon 5/139:46 amMDW - LHR
1 stop15h 29mDelta
Tue 5/218:40 amLHR - MDW
2 stops15h 27mDelta
Deal found 5/12$634
Wed 9/186:50 pmMDW - LHR
1 stop12h 25mDelta
Wed 10/21:55 pmLHR - MDW
1 stop13h 49mDelta
Deal found 5/12$639
Wed 9/411:51 amSTL - LHR
2 stops23h 49mMultiple Airlines
Thu 9/266:40 amLHR - STL
2 stops22h 55mMultiple Airlines
Deal found 5/11$641
Thu 10/177:10 pmORD - LHR
Nonstop7h 50mBritish Airways
Wed 11/2011:00 amLHR - ORD
Nonstop8h 55mBritish Airways
Deal found 5/11$645

Non-stop flights to Heathrow from Illinois

Discover non-stop flight options from Illinois to Heathrow. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,659,571 searches. Data last updated May 12, 2024.
Take a look at some of the direct flights traveling from Illinois to London in the near future. Select from other flights from Illinois to London by using the search form above.
Tue 5/2111:00 pmORD - LHR
Nonstop7h 45mBritish Airways
Fri 5/3111:05 amLHR - ORD
Nonstop8h 40mBritish Airways
Deal found 5/11$655
Sat 6/158:10 amORD - LHR
Nonstop8h 00mFinnair
Thu 9/58:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/12$669
Tue 7/238:30 amORD - LHR
Nonstop7h 40mBritish Airways
Thu 8/1512:15 pmLHR - ORD
Nonstop8h 40mBritish Airways
Deal found 5/12$670
Thu 7/188:30 amORD - LHR
Nonstop7h 40mBritish Airways
Sun 7/2112:15 pmLHR - ORD
Nonstop8h 40mBritish Airways
Deal found 5/11$673
Fri 5/1711:00 pmORD - LHR
Nonstop7h 45mIberia
Tue 5/213:35 pmLHR - ORD
Nonstop8h 40mIberia
Deal found 5/11$674
Wed 5/1511:00 pmORD - LHR
Nonstop7h 45mBritish Airways
Mon 5/208:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/11$675
Thu 7/1810:45 pmORD - LHR
Nonstop7h 30mBritish Airways
Sun 7/212:25 pmLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/12$676
Sun 5/268:20 amORD - LHR
Nonstop7h 50mBritish Airways
Wed 6/53:35 pmLHR - ORD
Nonstop8h 40mBritish Airways
Deal found 5/12$680
Wed 6/127:10 pmORD - LHR
Nonstop7h 50mBritish Airways
Wed 7/38:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/11$681

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 2,659,571 searches. Data last updated May 12, 2024.
Consider one of these great deals we found on last-minute flights from Illinois to London. Tip: verify your flight details before completing your reservation.
Sat 5/189:16 pmORD - LHR
1 stop29h 19mUnited Airlines
Tue 6/412:05 pmLHR - ORD
1 stop30h 05mUnited Airlines
Deal found 5/12$645
Sun 5/193:45 pmORD - LHR
Nonstop8h 10mUnited Airlines
Wed 5/296:50 amLHR - ORD
1 stop11h 10mUnited Airlines
Deal found 5/12$646
Fri 5/175:55 pmORD - LHR
1 stop21h 00mUnited Airlines
Sun 5/194:40 pmLHR - ORD
2 stops21h 40mUnited Airlines
Deal found 5/11$648
Tue 5/219:35 pmORD - LHR
Nonstop8h 10mUnited Airlines
Mon 5/2710:50 amLHR - ORD
1 stop31h 25mUnited Airlines
Deal found 5/11$650
Mon 5/206:05 pmORD - LHR
1 stop10h 35mUnited Airlines
Fri 5/316:50 amLHR - ORD
1 stop11h 10mUnited Airlines
Deal found 5/12$651
Tue 5/212:02 pmORD - LHR
1 stop16h 13mDelta
Fri 6/79:00 amLHR - ORD
1 stop12h 00mDelta
Deal found 5/11$653
Sat 5/189:37 pmORD - LHR
1 stop28h 03mUnited Airlines
Tue 6/41:45 pmLHR - ORD
1 stop28h 25mUnited Airlines
Deal found 5/11$654
Tue 5/216:00 pmORD - LHR
Nonstop7h 50mBritish Airways
Tue 5/2810:05 amLHR - ORD
Nonstop8h 40mBritish Airways
Deal found 5/11$655
Tue 5/215:10 pmORD - LHR
1 stop11h 20mFinnair
Fri 6/710:05 amLHR - ORD
Nonstop8h 40mFinnair
Deal found 5/11$659

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 2,659,571 searches. Data last updated May 12, 2024.
Users in need of a one-way flight from Illinois to London can choose from these deals. Users in need of a round-trip flight from Illinois to London instead should update the search form at the top of page.
Sun 10/67:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/11$232
Mon 10/77:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/11$236
Tue 10/87:30 pmORD - LHR
1 stop18h 50mIcelandair
Deal found 5/11$238
Tue 9/2410:15 pmORD - LHR
1 stop16h 05mIcelandair
Deal found 5/11$244
Tue 10/227:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/11$257
Mon 8/2610:00 amORD - LHR
2 stops22h 35mMultiple Airlines
Deal found 5/11$294
Tue 7/167:25 pmORD - LHR
1 stop10h 30mIcelandair
Deal found 5/11$297
Mon 7/1510:15 pmORD - LHR
1 stop31h 40mIcelandair
Deal found 5/11$299
Tue 10/86:00 amMDW - LHR
2 stops23h 55mMultiple Airlines
Deal found 5/12$299

Find flights from Illinois to Heathrow within your budget

Customize 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 2,659,571 searches. Data last updated May 12, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$446 - $589

Route

Depart

Return

Price

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 6/10

Nonstop8h 00m

London Heathrow

Wed 6/26

Nonstop8h 35m

$446

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 9/23

1 stop12h 40m

London Heathrow

Wed 10/2

Nonstop8h 55m

$479

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 11/6

1 stop20h 20m

London Heathrow

Wed 11/20

1 stop15h 30m

$489

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 9/3

1 stop16h 05m

London Heathrow

Mon 9/16

1 stop26h 50m

$540

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 10/18

2 stops31h 50m

London Heathrow

Mon 10/21

1 stop17h 15m

$549

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 11/3

1 stop10h 10m

London Heathrow

Sun 11/10

1 stop11h 45m

$565

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 10/9

Nonstop7h 50m

London Heathrow

Wed 10/23

1 stop13h 35m

$574

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 10/22

Nonstop8h 15m

London Heathrow

Thu 10/31

1 stop13h 20m

$578

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 10/22

1 stop11h 33m

London Heathrow

Wed 11/20

1 stop14h 50m

$589

Flights are sorted by cheapest first

Deals found on 5/12

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 May 12, 2024.
To help decide which airline to fly from Illinois to London, see what other customers have to say about British Airways, Finnair and TAP AIR PORTUGAL. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,745 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

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
10,745 reviews
Delta
8.0
Very good
10,745 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

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
1,583 reviews
Delta
8.0
Very good
10,745 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

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
10,745 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

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
1,377 reviews
Delta
8.0
Very good
10,745 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

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.

Austrian Airlines
7.7
Good
1,058 reviews
Delta
8.0
Very good
10,745 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Overall

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 $500 on Cheapflights?

    Yes, there are multiple flights from Illinois to London Heathrow Airport for under $500. The cheapest flight booked recently is on British Airways for just $446, but on average you can expect to pay $480.

  • Are there nonstop flights from Illinois to London Heathrow Airport for under $700 on Cheapflights?

    Cheapflights has at least 20 direct flights from Illinois to London Heathrow Airport under $700. A good price for a nonstop flight from Illinois to London Heathrow Airport is less than $687.

  • Are there last-minute flights available from Illinois to London Heathrow Airport for under $700?

    There are currently 20+ open flights from Illinois to London Heathrow Airport within the next 7 days for less than $700.

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

    Nonstop flights are available for this route on the following days: Wednesday.

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

    1 flight departure 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 $446, British Airways can have you in London Heathrow Airport from Illinois in 8h. There are 3964 mi between Illinois and London Heathrow Airport. This flight may include one or multiple stops.

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

    The most popular flight routes from Illinois to London Heathrow Airport are Chicago O'Hare Intl - London Heathrow, Chicago Midway - London Heathrow and Lambert-St Louis - London Heathrow.

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

    The most popular airlines flying from Illinois to London Heathrow Airport are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

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

    Consider EL AL (91%), Qatar Airways (78%) or Aer Lingus (78%) when booking your flight. These represent the most reliable airlines when flying from Illinois to London Heathrow Airport.

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

    While on average a flight from Illinois to London Heathrow Airport is generally $3,602, our data shows the cheapest flight currently is $425. When looking at the most popular route, (Chicago O'Hare Intl - London Heathrow), you can expect to pay $447 for that flight.

  • 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 some additional IATA codes for airports related to your trip.

  • 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 vacation 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 5/12.

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 2,659,571 searches. Data last updated May 12, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$253Average$841FlexibilityNo cancel feeOn-time76%
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Scandinavian AirlinesCheapest$414Average$502FlexibilityNo cancel feeOn-time77%
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DeltaCheapest$451Average$821FlexibilityNo cancel feeOn-timeN/A
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IcelandairCheapest$503Average$682FlexibilityNo cancel feeOn-time76%
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TAP AIR PORTUGALCheapest$512Average$855FlexibilityNo cancel feeOn-timeN/A
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Aer LingusCheapest$529Average$778FlexibilityNo cancel feeOn-timeN/A
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United AirlinesCheapest$572Average$953FlexibilityNo cancel feeOn-time69%
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Air CanadaCheapest$573Average$722FlexibilityNo cancel feeOn-time67%
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IberiaCheapest$579Average$752FlexibilityNo cancel feeOn-time77%
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Virgin AtlanticCheapest$583Average$683FlexibilityNo cancel feeOn-time72%
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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 May 12, 2024.
1%of flight departuresEarly morningMidnight to 6 am
11%of flight departuresMorning6 am to noon
45%of flight departuresAfternoonNoon to 6 pm
43%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Fly with Cheapflights

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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?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois to Heathrow for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Illinois to Heathrow flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Illinois today and book when prices fit your budget.

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