Need help booking?

Unpublished phone-only deals available

LHR to MDW: distance & flight time

London (London Heathrow Airport) → Chicago (Chicago Midway International Airport)

3,945 mi
6,349 km · 3,428 nm
8h 12m
estimated nonstop flight time
-6h
time difference · heading northwest
See live LHRMDW fares Phone-only fares on this route — call free

Flight time details

3,945 miles nonstop takes roughly 8h 12m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.

The two airports

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.

Frequently asked questions

How far is LHR from MDW?

The flight distance from London (LHR) to Chicago (MDW) is 3,945 miles (6,349 km, 3,428 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from LHR to MDW?

A nonstop flight takes about 8h 12m 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 London and Chicago?

Chicago is 6 hours behind London.

What is the cheapest way to fly from LHR to MDW?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHR–MDW that never appear on search engines, with no booking fees.
Keep exploring:MDW to LHR Airports near LHR Airports near MDW Time difference LHRMDW Distance calculator