Cheap flights from Illinois to London Heathrow Airport from £149
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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap Virgin Atlantic flights from Illinois to Heathrow
Explore cheap flight options specifically provided by Virgin Atlantic 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 951,753 searches. Data last updated 2 October 2024.
Peruse some of the lowest-priced Virgin Atlantic flights we've found from Illinois to London. Come back soon if you're not finding the exact deal you're looking for.
Cheap Iberia flights from Illinois to Heathrow
Explore cheap flight options specifically provided by Iberia 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 951,753 searches. Data last updated 2 October 2024.
Some of the lowest-priced Iberia 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.
Cheap Illinois to Heathrow flights in October & November 2024
Find cheap flight options from Illinois to Heathrow specifically for the months of October and November 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 951,753 searches. Prices were last updated on 2 October 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.
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 951,753 searches. Data last updated 2 October 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.
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 951,753 searches. Data last updated 2 October 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.
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 951,753 searches. Data last updated 2 October 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.
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 951,753 searches. Data last updated 2 October 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.
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 951,753 searches. Data last updated 2 October 2024.
Fly from
Fly to
Budget
£345 - £447
Route
Depart
Return
Price
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Wed 13/11
1 stop10h 20m
London Heathrow
Sat 23/11
1 stop11h 05m
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Sun 9/3
1 stop14h 50m
London Heathrow
Sat 22/3
1 stop15h 10m
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Tue 29/10
2 stops18h 10m
London Heathrow
Wed 6/11
2 stops23h 37m
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Wed 8/1
1 stop14h 45m
London Heathrow
Tue 14/1
1 stop15h 28m
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Fri 6/12
1 stop16h 35m
London Heathrow
Thu 12/12
1 stop27h 00m
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Wed 6/11
Nonstop7h 35m
London Heathrow
Wed 13/11
Nonstop8h 50m
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Tue 26/11
Nonstop7h 35m
London Heathrow
Tue 10/12
1 stop14h 20m
Lambert-St LouisLondon Heathrow
STL - LHR
STLLHR
Lambert-St Louis
Mon 4/11
1 stop10h 40m
London Heathrow
Wed 6/11
2 stops30h 36m
Chicago O'Hare IntlLondon Heathrow
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Wed 8/1
Nonstop7h 50m
London Heathrow
Tue 14/1
Nonstop8h 50m
Best time to book a flight from Illinois to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Illinois with our price prediction graph.
Travel insights for flights from Illinois to Heathrow
Get recent, data-driven insights about flights from Illinois to Heathrow including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Illinois to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Illinois to London Heathrow Airport (average of £327). Flying from Illinois to London Heathrow Airport in June is currently the most expensive (average of £511). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to LHR?
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 2 October 2024.
It’s optimal to fly from Illinois to London Heathrow Airport in the afternoon. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight at midday.
Weekly flight availability from Illinois to London Heathrow Airport
Explore weekly flight availability from Illinois to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 2 October 2024.
The most flights from USIL to LHR are scheduled on a Monday (62 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (54 on average).
What are the most popular airlines that fly from Illinois to London Heathrow Airport?
Our users search for these airlines the most often when looking for flights from Illinois to Heathrow. Data last updated on 2 October 2024.
Consider British Airways, Iberia or Lufthansa when booking your flight. These represent the most popular airlines when flying from Illinois to London Heathrow Airport.
Rainfall in Heathrow by month
Plan your trip to Heathrow by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.
Temperature in Heathrow by month
Plan your trip to Heathrow by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).
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 2 October 2024.
To help decide which airline to fly from Illinois to London, see what other customers have to say about Virgin Atlantic, Iberia and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Overall
Crew
Entertainment
Comfort
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Overall
Crew
Entertainment
Comfort
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Overall
Crew
Entertainment
Comfort
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Overall
Crew
Entertainment
Comfort
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Overall
Crew
Entertainment
Comfort
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida