Cheap flights from Heathrow (LHR) to Illinois from $250
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 6/3. 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.
How far in advance should I book a flight from London Heathrow Airport to Illinois?
Find a great deal and save up to 6% by booking at least 28 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Illinois within the next two weeks, with the cheapest ticket starting at $672.
What is the cheapest month to fly from London Heathrow Airport to Illinois?
The best pricing can be found in the month of February. Prices to Illinois from London Heathrow Airport average $678. You can even find prices in February for less than $678, as users have found deals to Illinois from as low as $466. The month of July appears to be one of the more expensive times to travel to Illinois from London Heathrow Airport. Flying in the targeted month can save you up to 26%.
When is the cheapest time to fly from London Heathrow Airport to Illinois (LHR - IL)?
When flying from London Heathrow Airport to Illinois, 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 Heathrow to Illinois
Explore cheap flight options specifically provided by TAP AIR PORTUGAL for the route between Heathrow and Illinois. 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 2,730,072 searches. Data last updated May 23, 2024.
Consider these cheap TAP AIR PORTUGAL flights we've found departing from London to Illinois. Be sure to come back soon if the deals available don't appeal to you at this time.
Cheap JetBlue flights from Heathrow to Illinois
Explore cheap flight options specifically provided by JetBlue for the route between Heathrow and Illinois. 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 2,730,072 searches. Data last updated May 23, 2024.
Some of the lowest-priced JetBlue flights we've found at this time heading from London to Illinois. Ensure the flight price, dates, time, and airline match your criteria before you book.
Cheap Heathrow to Illinois flights in May & June 2024
Find cheap flight options from Heathrow to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Prices were last updated on May 23, 2024.
Listed are some of the best fares we've found on flights departing from London to Illinois in 2024. Check back in a little while for more flight options.
Heathrow to Illinois 2024 flight deals
Discover exclusive flight deals for travel between Heathrow and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 23, 2024.
Listed are some of the best fares we've found on flights departing from London to Illinois in 2024. Check back in a little while for more flight options.
Non-stop flights to Illinois from Heathrow
Discover non-stop flight options from Heathrow to Illinois. 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 2,730,072 searches. Data last updated May 23, 2024.
To help reduce your travel time, choose from one of these non-stop flights from London to Illinois. If you're looking for other options for flights from London to Illinois, make sure to update the search form at the top of page.
Heathrow to Illinois flights leaving soon
Find last-minute flight options from Heathrow to Illinois 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 2,730,072 searches. Data last updated May 23, 2024.
Book one of these great deals on flights from London to Illinois. To prevent any unwanted surprises, users should verify their flight info before booking.
One-way flights to Illinois from Heathrow
Search for one-way flight options from Heathrow to Illinois. 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 2,730,072 searches. Data last updated May 23, 2024.
Take a look at some of the best available options we've come across on one-way flights from London to Illinois. Those needing a return flight from London to Illinois can use the search form above.
Find flights from Heathrow to Illinois within your budget
Customize your flight search to find flights from Heathrow to Illinois 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 2,730,072 searches. Data last updated May 23, 2024.
Fly from
Fly to
Budget
$448 - $625
Route
Depart
Return
Price
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Thu 9/26
3 stops42h 05m
Chicago O'Hare Intl
Tue 10/1
1 stop16h 05m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Sat 11/2
2 stops37h 30m
Chicago O'Hare Intl
Sat 11/9
2 stops14h 15m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Fri 9/6
1 stop14h 10m
Chicago O'Hare Intl
Tue 9/24
1 stop16h 05m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Tue 10/22
1 stop26h 20m
Chicago O'Hare Intl
Wed 10/30
1 stop20h 20m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Tue 9/24
1 stop15h 45m
Chicago O'Hare Intl
Tue 10/8
1 stop18h 25m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 9/16
Nonstop8h 35m
Chicago O'Hare Intl
Tue 10/1
1 stop19h 35m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 9/16
Nonstop9h 10m
Chicago O'Hare Intl
Tue 10/1
Nonstop8h 05m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 6/5
Nonstop8h 42m
Chicago O'Hare Intl
Wed 6/19
Nonstop8h 00m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 9/18
1 stop11h 15m
Chicago O'Hare Intl
Tue 9/24
Nonstop8h 05m
No data available for this route at this time. Please check back soon.
Best time to book a flight from Heathrow to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Heathrow with our price prediction graph.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated May 23, 2024.
To help decide which airline to fly from London to Illinois, see what other customers have to say about TAP AIR PORTUGAL, JetBlue and American Airlines. 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.
Food
Comfort
Crew
Overall
Boarding
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Comfort
Crew
Overall
Boarding
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Comfort
Crew
Overall
Boarding
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Comfort
Crew
Overall
Boarding
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Comfort
Crew
Overall
Boarding
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Comfort
Crew
Overall
Boarding
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Heathrow to IllinoisSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 9 airlines flying from Heathrow to Illinois
Discover the top 9 airlines that operate flights from Heathrow to Illinois. 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 2,730,072 searches. Data last updated May 23, 2024.
Search flights from Heathrow to Illinois by cabin class
Find flights from Heathrow to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Heathrow to Illinois
Find hourly flight availability from Heathrow to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 23, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 52%of flight departures | Morning6 am to noon |
| 47%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
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How does Cheapflights help users find flights from Heathrow to Illinois?
Deals for Heathrow to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Illinois?
Cheapflights helps you find that perfect flight to Illinois from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Heathrow to Illinois with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Illinois, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Heathrow to Illinois become cheaper?
Yes, Cheapflights offers price alerts on Heathrow to Illinois 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.