Cheap flights from Champaign to London from £529
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Champaign to London
Discover tips and strategies to find the most affordable flight options for your journey from Champaign (CMI) to London (LON). 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 12 September 2025.
Round-trip from | £529 |
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Find flight deals from Champaign to London
Cheapest flights from Champaign to LondonExplore the most affordable flight options available from Champaign to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.
Explore the most affordable flight options available from Champaign to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Champaign to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChampaignLondon
CMI - LHR
CMILHR
Champaign University-Willard
Mon 3/11
15:15-10:00
1 stop12h 45m
London Heathrow
Sat 15/11
11:00-19:26
1 stop14h 26m
ChampaignLondon
CMI - LHR
CMILHR
Champaign University-Willard
Tue 2/12
13:22-06:55
1 stop11h 33m
London Heathrow
Wed 10/12
11:00-21:30
1 stop16h 30m
ChampaignLondon
CMI - LHR
CMILHR
Champaign University-Willard
Sun 2/11
15:15-10:00
1 stop12h 45m
London Heathrow
Sat 15/11
14:10-21:29
1 stop13h 19m
ChampaignLondon
CMI - LHR
CMILHR
Champaign University-Willard
Mon 3/11
13:50-14:20
2 stops18h 30m
London Heathrow
Sat 15/11
11:00-21:29
1 stop16h 29m
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
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Alternative routes for Champaign to London
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How does Cheapflights help users find flights from Champaign to London?
When you search for this flight from Champaign to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Champaign to London?
Millions of users choose and trust Cheapflights to book the best flight deals from Champaign to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Champaign to London with no change fees?
Yes, we can. To see specific flights from Champaign to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Champaign to London become cheaper?
Yes! Start tracking prices for Champaign to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.