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$797+ Cheap flights from Champaign (CMI) to Heathrow (LHR)

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — LHR
mars 31 — avr. 71
lun. 3/31
lun. 4/7
1 adult, Economy
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Cheap flight deals from Champaign to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Champaign (CMI) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mars 26, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
1 star

Round-trip from

$797
(oojo)
Provider with most accurate pricing for Champaign University-Willard-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Champaign University-Willard-London Heathrow flights.
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From Champaign University-Willard to London Heathrow
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Find flight deals from Champaign to Heathrow

Cheapest flights from Champaign to Heathrow
Explore the most affordable flight options available from Champaign to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mars 26, 2025.

This oojo deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/711:13 amCMI - LHR
1 stop14h 07mBritish Airways
lun. 4/148:15 pmLHR - CMI
2 stops26h 51mBritish Airways
Deal found 3/24$797
This StudentUniverse deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/84:30 pmCMI - LHR
2 stops17h 50mMultiple Airlines
jeu. 5/158:00 pmLHR - CMI
3 stops25h 55mMultiple Airlines
Deal found 3/24$5,779

Cheapflights Fare Finder

Customize your flight search to find flights from Champaign 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 2,558,603 searches. Data last updated mars 26, 2025.
Use the filters below to find and compare flights from Champaign to London Heathrow Airport that are best for you.

Fly from

Champaign

Fly to

Heathrow

Route

Depart

Return

Price

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

lun. 4/7

11:13 am-7:20 am

1 stop14h 07m

London Heathrow

lun. 4/14

8:15 pm-5:06 pm

2 stops26h 51m

$797

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

jeu. 5/8

4:30 pm-4:20 pm

2 stops17h 50m

London Heathrow

jeu. 5/15

8:00 pm-3:55 pm

3 stops25h 55m

$5,779

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

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

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 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 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 Heathrow Airport when rainfall is around 1.6 in.

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 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).

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 mars 26, 2025.
British Airways
6.6
Okay
6,712 reviews

Comfort

6.7

Crew

7.5

Entertainment

6.4

Boarding

6.8

Food

6.3

Overall

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

ORD - LHR

Plane was delayed 2 hours. We were charged extra for luggage and seats. Seat rows were so close together that it was almost impossible to get in and out to use the bathroom, let alone sit comfortably. Food was mediocre at best. Your ambient music is the same tune that is used when AA puts me on hold. Flying has become a nightmare!
British Airways
6.6
Okay
6,712 reviews
British Airways
6.6
Okay
6,712 reviews

Comfort

6.7

Crew

7.5

Entertainment

6.4

Boarding

6.8

Food

6.3

Overall

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

ORD - LHR

Plane was delayed 2 hours. We were charged extra for luggage and seats. Seat rows were so close together that it was almost impossible to get in and out to use the bathroom, let alone sit comfortably. Food was mediocre at best. Your ambient music is the same tune that is used when AA puts me on hold. Flying has become a nightmare!

Related info for your journey

Find useful and relevant information for your journey from Champaign to Heathrow. 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 Heathrow?

    Most people fly from Champaign University-Willard (CMI) if they book a flight from Champaign to London Heathrow. On average, University-Willard has 0 outbound flights to London Heathrow per day from 0 airlines. Champaign University-Willard is conveniently located just 11.3 mi from Champaign’s city center.

  • What is the cheapest airline to fly from Champaign to London Heathrow Airport round-trip?

    Currently priced at $797, British Airways will fly you from Champaign to London Heathrow Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip.

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

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

  • How can I find direct flights from Champaign to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Champaign 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.

  • What is the cheapest month to book a flight from Champaign to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Champaign to London Heathrow Airport (average of $661). Flying from Champaign to London Heathrow Airport in June is currently the most expensive (average of $1,115). 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.

See more FAQs

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