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CMI to LHR: distance & flight time
Champaign (University of Illinois Willard Airport) → London (London Heathrow Airport)
4,047 mi
6,513 km · 3,517 nm
8h 24m
estimated nonstop flight time
+6h
time difference · heading northeast
See live CMI→LHR fares Phone-only fares on this route — call free
Flight time details
4,047 miles nonstop takes roughly 8h 24m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- CMI — University of Illinois Willard Airport · Champaign, United States
- LHR — London Heathrow Airport · London, United Kingdom
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near CMI
Near LHR
- LGW · London Gatwick Airport25 mi away
- NHT · RAF Northolt6 mi away
- HYC · Wycombe Air Park18 mi away
- FAB · Farnborough Airport19 mi away
Frequently asked questions
How far is CMI from LHR?
The flight distance from Champaign (CMI) to London (LHR) is 4,047 miles (6,513 km, 3,517 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CMI to LHR?
A nonstop flight takes about 8h 24m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Champaign and London?
London is 6 hours ahead of Champaign.
What is the cheapest way to fly from CMI to LHR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CMI–LHR that never appear on search engines, with no booking fees.