$1,186 Cheap Flights from London (LHR) to Champaign (CMI)

View $1,186 flight on Mon, Dec 1, 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard)

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Cheap Flights from London to Champaign (LHR-CMI)

Prices were available within the past 7 days and start at $1,186 for one-way flights and $1,044 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,044 Roundtrip, found 5 days ago
$1,044
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,044 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,091 Roundtrip, found 5 days ago
$1,091
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,091 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,190 Roundtrip, found 5 days ago
$1,190
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,190 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,237 Roundtrip, found 5 days ago
$1,237
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,237 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,322 Roundtrip, found 5 days ago
$1,322
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,322 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,326 Roundtrip, found 5 days ago
$1,326
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,326 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,368 Roundtrip, found 5 days ago
$1,368
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,368 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,374 Roundtrip, found 5 days ago
$1,374
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,374 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,472 Roundtrip, found 5 days ago
$1,472
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,472 found 5 days ago
British Airways
Sat, Sep 6 - Sat, Sep 13
LHR
London
CMI
Champaign
$1,519 Roundtrip, found 5 days ago
$1,519
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Sep 6 from London to Champaign, returning Sat, Sep 13, priced at $1,519 found 5 days ago
Flights from London (LHR) to Champaign (CMI)
Origin airport
Heathrow
Destination airport
University Of Illinois Urbana-Champaign Williard
Roundtrip price
$1,043
Distance
4046 mi

London to Champaign Flights

The cheapest times to fly from London to Champaign

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Champaign are during the month of September. You can find some of the cheapest flights from London to Champaign with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Champaign

Sunday is one of the best days to book for cheap flights from London to Champaign: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Champaign

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Champaign in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,186 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Champaign flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Champaign airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI) cost?
Secure a cheap one-way flight from $1,186 or cheap return flight from $1,044 from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Flying in September can help you save, as it's the cheapest month for flights between LHR and CMI. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from LHR to CMI. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
You'll need to take a flight with a layover when traveling from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from LHR to CMI?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Opt for a flight from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI) that leaves before 3 PM to reduce the likelihood of delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI) last-minute?
Holding off until just before your trip to book your flight from LHR to CMI generally means paying more. Although you may find some last-minute deals, they're not always guaranteed. Be flexible with your itinerary for the best chance of getting a bargain.
Is it cheaper to book a LHR to CMI flight and hotel package?
Compared with arranging hotels and flights separately, booking a LHR to CMI flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Just pick your flights and select from our wide range of hotels, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
If you booked your LHR to CMI flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.