How long is the flight from Champaign to London?

Departing from Champaign to London will take you 16h 45m. There are 4044 mi between Champaign and London.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

If weather is an important factor for your trip to London, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from CMI to LON?

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

Most accurate provider : When it comes to deals on Champaign-London flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Champaign-London flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Champaign-London flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Champaign-London flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Champaign-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Champaign to London?

For a flight from Champaign to London, you will be flying from University-Willard. Champaign University-Willard (CMI) is just 11.3 mi from the center of the city. University-Willard is the only Champaign airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Champaign University-Willard on a regular basis.

Can I find deals for flights from Champaign to London that include hotel bookings?

Yes. In addition to deals on Champaign to London flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Champaign to London?

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

Can I find deals for business class flights from Champaign to London?

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

$857+ Flights from Champaign to London

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Cheap flight deals from Champaign to London

Best flights from Champaign to London
Discover carefully curated flight deals from Champaign to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Sun 2/1511:40 amCMI - LHR

1 stop16h 45mBritish Airways

Wed 2/2510:45 amLHR - CMI

2 stops40h 50mBritish Airways

Deal found 12/20

$857

Mon 2/162:15 pmCMI - LHR

1 stop12h 00mBritish Airways

Thu 2/267:40 pmLHR - CMI

2 stops31h 55mBritish Airways

Deal found 12/20

$857

Mon 2/162:15 pmCMI - LHR

1 stop14h 10mBritish Airways

Tue 2/247:05 pmLHR - CMI

2 stops31h 53mBritish Airways

Deal found 12/20

$857

Wed 2/1812:19 pmCMI - LHR

1 stop12h 36mBritish Airways

Thu 2/2612:35 pmLHR - CMI

1 stop15h 00mBritish Airways

Deal found 12/20

$866

Tue 2/1711:21 amCMI - LHR

1 stop18h 14mBritish Airways

Fri 2/272:10 pmLHR - CMI

1 stop13h 25mBritish Airways

Deal found 12/20

$866

Tue 2/1711:21 amCMI - LHR

1 stop14h 54mBritish Airways

Thu 2/262:10 pmLHR - CMI

1 stop13h 25mBritish Airways

Deal found 12/20

$866

Sun 2/1511:40 amCMI - LHR

1 stop14h 35mBritish Airways

Thu 2/2612:35 pmLHR - CMI

1 stop15h 00mBritish Airways

Deal found 12/20

$866

Mon 2/162:15 pmCMI - LHR

1 stop12h 00mBritish Airways

Fri 2/272:10 pmLHR - CMI

1 stop13h 25mBritish Airways

Deal found 12/20

$866

Wed 2/1812:19 pmCMI - LHR

1 stop16h 06mBritish Airways

Fri 2/273:45 pmLHR - CMI

1 stop11h 50mBritish Airways

Deal found 12/20

$866

Mon 2/162:15 pmCMI - LHR

1 stop10h 40mBritish Airways

Wed 2/252:10 pmLHR - CMI

1 stop12h 48mBritish Airways

Deal found 12/20

$866

Fri 2/132:15 pmCMI - LHR

1 stop12h 00mBritish Airways

Fri 2/207:30 amLHR - CMI

2 stops20h 05mBritish Airways

Deal found 12/20

$896

Fri 2/202:15 pmCMI - LHR

1 stop12h 00mBritish Airways

Tue 2/249:15 amLHR - CMI

2 stops41h 43mBritish Airways

Deal found 12/21

$907

Last-minute flights from Champaign to London
Discover last-minute flight deals from Champaign to London. Data last updated December 23, 2025 and is based on user searches.

Sun 1/186:53 pmCMI - LHR

1 stop10h 42mBritish Airways

Sun 1/2512:35 pmLHR - CMI

1 stop11h 48mBritish Airways

Deal found 12/21

$1,030

Find flight deals from Champaign to London

Most accurate provider	AranGrant 2 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$658 (FlightHub)

Provider with most accurate pricing for Champaign University-Willard-London (LON) flight deals.

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Provider most trusted by Cheapflights users for Champaign University-Willard-London (LON) flights.

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From Champaign University-Willard to London (LON)

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Sun 2/15

11:40 am-10:25 am

1 stop16h 45m

London Heathrow

Wed 2/25

10:45 am-9:35 pm

2 stops40h 50m

$857

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Mon 2/16

2:15 pm-8:15 am

1 stop12h 00m

London Heathrow

Thu 2/26

7:40 pm-9:35 pm

2 stops31h 55m

$857

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Mon 2/16

2:15 pm-10:25 am

1 stop14h 10m

London Heathrow

Tue 2/24

7:05 pm-8:58 pm

2 stops31h 53m

$857

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Wed 2/18

12:19 pm-6:55 am

1 stop12h 36m

London Heathrow

Thu 2/26

12:35 pm-9:35 pm

1 stop15h 00m

$866

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Tue 2/17

11:21 am-11:35 am

1 stop18h 14m

London Heathrow

Fri 2/27

2:10 pm-9:35 pm

1 stop13h 25m

$866

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Tue 2/17

11:21 am-8:15 am

1 stop14h 54m

London Heathrow

Thu 2/26

2:10 pm-9:35 pm

1 stop13h 25m

$866

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Sun 2/15

11:40 am-8:15 am

1 stop14h 35m

London Heathrow

Thu 2/26

12:35 pm-9:35 pm

1 stop15h 00m

$866

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Mon 2/16

2:15 pm-8:15 am

1 stop12h 00m

London Heathrow

Fri 2/27

2:10 pm-9:35 pm

1 stop13h 25m

$866

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Wed 2/18

12:19 pm-10:25 am

1 stop16h 06m

London Heathrow

Fri 2/27

3:45 pm-9:35 pm

1 stop11h 50m

$866

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Mon 2/16

2:15 pm-6:55 am

1 stop10h 40m

London Heathrow

Wed 2/25

2:10 pm-8:58 pm

1 stop12h 48m

$866

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 12 results

Most accurate provider: When it comes to deals on Champaign-London flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Champaign-London flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Champaign-London flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Champaign-London flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Champaign-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Champaign to London

Have a flexible travel schedule? Discover the best time to fly to London from Champaign with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Champaign to London

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

Related info for your journey

What airport do you fly from for flights from Champaign to London?
For a flight from Champaign to London, you will be flying from University-Willard. Champaign University-Willard (CMI) is just 11.3 mi from the center of the city. University-Willard is the only Champaign airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Champaign University-Willard on a regular basis.
How long is the flight from Champaign to London?
Departing from Champaign to London will take you 16h 45m. There are 4044 mi between Champaign and London.
Can I find deals for flights from Champaign to London that include hotel bookings?
Yes. In addition to deals on Champaign to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Champaign to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Champaign to London.
Can I find deals for business class flights from Champaign to London?
Yes. Cheapflights offers flight deals from Champaign to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$857+ Cheap flights from Champaign (CMI) to London (LON)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Champaign to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Champaign to London

Best flights from Champaign to LondonDiscover carefully curated flight deals from Champaign to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Discover carefully curated flight deals from Champaign to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Find flight deals from Champaign to London

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Most trusted provider

Round-trip from

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Use the filters below to find and compare flights from Champaign to London that are best for you.

Best time to book a flight from Champaign to London

Have a flexible travel schedule? Discover the best time to fly to London from Champaign with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Champaign to London

Related info for your journey

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

What airport do you fly from for flights from Champaign to London?

How long is the flight from Champaign to London?

Can I find deals for flights from Champaign to London that include hotel bookings?

How can I find direct flights from Champaign to London?

Can I find deals for business class flights from Champaign to London?

Traveling to a place near London?

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Best flights from Champaign to London
Discover carefully curated flight deals from Champaign to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.