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Cheap flights from Champaign to London Heathrow Airport from £552

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — LHR
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

£552
American Airlines
  • American Airlines
  • 21/10-30/10
  • 2 total stops
  • 27h 10m total
  • Champaign to London
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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 13 June 2025.

Tue 21/1020:20CMI - LHR
1 stop9h 55mAmerican Airlines
Thu 30/1008:20LHR - CMI
1 stop17h 15mAmerican Airlines
Deal found 12/6£552
Tue 21/1014:58CMI - LHR
1 stop13h 32mBritish Airways
Thu 30/1006:15LHR - CMI
2 stops19h 24mBritish Airways
Deal found 12/6£555

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 13 June 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

Tue 21/10

20:20-12:15

1 stop9h 55m

London Heathrow

Thu 30/10

08:20-20:35

1 stop17h 15m

£552

ChampaignLondon

CMI - LHR

CMILHR

Champaign University-Willard

Tue 21/10

14:58-10:30

1 stop13h 32m

London Heathrow

Thu 30/10

06:15-20:39

2 stops19h 24m

£555

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 return 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 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 13 June 2025.
American Airlines
7.2
Good
10,000 reviews
Check prices

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Alison,May 2025

LHR - MAN

Gate staff were confused and passengers openly incredulous at lack of organisation and information to the extent that for a while we all believed entry to the gate would be via a coffee shop. It was embarrassing to see US passengers so derisive of the ground crew’s ineptitude.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Alison,May 2025

LHR - MAN

Gate staff were confused and passengers openly incredulous at lack of organisation and information to the extent that for a while we all believed entry to the gate would be via a coffee shop. It was embarrassing to see US passengers so derisive of the ground crew’s ineptitude.
British Airways
6.6
Okay
7,011 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Alison,May 2025

LHR - MAN

Gate staff were confused and passengers openly incredulous at lack of organisation and information to the extent that for a while we all believed entry to the gate would be via a coffee shop. It was embarrassing to see US passengers so derisive of the ground crew’s ineptitude.

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 are the cheapest airlines flying from Champaign to London Heathrow Airport round-trip?

    Flying on American Airlines is currently your cheapest option to London Heathrow Airport, with prices starting at £552. Another option worth looking into is British Airways, starting at £555 return.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Champaign to London Heathrow Airport (average of £112). Flying from Champaign to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Champaign?

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