IAD to LHR: Distance and Flight Time
The distance from Washington Dulles International Airport (IAD) to London Heathrow Airport (LHR) is 5,902 km (3,667 mi). A typical nonstop flight covers it in about 7h 55m, heading northeast. The distance is the same in either direction (LHR to IAD).
How far is it from Dulles to London?
The great-circle distance between Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR) is 5,902 km (3,667 mi, 3,187 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from IAD to LHR?
A nonstop flight typically takes about 7h 55m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. LHR is roughly northeast of IAD.
How is the IAD to LHR route written in code?
The pair is written IAD-LHR in IATA codes and KIAD-EGLL in ICAO codes, the form used on a flight plan. Washington Dulles International Airport is IAD (KIAD), London Heathrow Airport is LHR (EGLL).
| IAD | LHR | |
|---|---|---|
| Airport | Washington Dulles International Airport | London Heathrow Airport |
| ICAO code | KIAD | EGLL |
| Country | United States | United Kingdom |
| Elevation | 312 ft | 83 ft |
| Rank by connections | #72 | #4 |
KIAD starts with K, the ICAO prefix for the contiguous United States; EGLL starts with E, the prefix for northern Europe. How ICAO prefixes are laid out.
LHR sits 229 ft (70 m) lower than IAD, which is a real difference in air density on takeoff.
Airlines flying IAD to LHR
4 airlines appear on this route in the open route dataset, 4 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| AY | Finnair | FIN | Finnair | Active |
| BA | British Airways | BAW | Speedbird | Active |
| UA | United Airlines | UAL | United | Active |
| VS | Virgin Atlantic Airways | VIR | Virgin | Active |
A further 4 carriers sell this pair as a codeshare without operating it: AA, DL, IB, LH.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Dulles from London?
Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR) are 5,902 km (3,667 mi, 3,187 nautical miles) apart in a straight line.
How long is the flight from IAD to LHR?
A typical nonstop flight between IAD and LHR takes about 7h 55m. Actual times vary with aircraft type, winds and routing.
What direction is LHR from IAD?
London Heathrow Airport (LHR) lies roughly northeast of Washington Dulles International Airport (IAD).
Which airlines fly IAD to LHR?
4 airlines appear on the IAD-LHR route in the open dataset, including Finnair, British Airways, United Airlines.
Related routes
Other routes from Dulles (IAD):
Other routes from London (LHR):
IAD airport code · LHR airport code · Busiest airports worldwide