Live Verified Airline Offers: Washington D.C. (IAD) to London (LHR)
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Departure & Arrival Airport Terminal Breakdown (IAD → LHR)
Departing from Washington Dulles International Airport (IAD)
- Terminal Layout: Main Saarinen Terminal + Midfield Concourses A/B and C/D connected by AeroTrain
- Major Airlines at IAD: United Airlines (Mid-Atlantic International Hub), Lufthansa, ANA, Air France, British Airways, Emirates
- Ground Transit to IAD: WMATA Silver Line Metrorail runs directly from Dulles Indoor Station to Tysons, Rosslyn, and Downtown Washington D.C. (Metro Center) in 52 minutes.
Arriving at London Heathrow Airport (LHR)
- Terminal Layout: 4 Active Passenger Terminals (T2 Star Alliance, T3 Oneworld/Virgin/Delta, T4 SkyTeam/Gulf, T5 British Airways)
- Major Airlines at LHR: British Airways (T5/T3 Hub), Virgin Atlantic (T3 Hub), American, United, Delta, JetBlue, Emirates, Qantas
- Airport-to-City Transit at London: Heathrow Express runs non-stop to London Paddington in 15 minutes; Elizabeth Line reaches Bond Street (Mayfair) in 32 minutes and Liverpool Street in 39 minutes.
Frequently Asked Questions: Flying from Washington D.C. to London
How long is the flight from Washington D.C. (IAD) to London (LHR)?
The great-circle flight distance between Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR) is 3,667 miles (5,901 km), with an estimated nonstop block flight time of approximately 7h 55m.
Which terminals do flights from IAD to LHR use?
At Washington D.C. (IAD), flights operate across Main Saarinen Terminal + Midfield Concourses A/B and C/D connected by AeroTrain. Upon arrival at London (LHR), passengers use 4 Active Passenger Terminals (T2 Star Alliance, T3 Oneworld/Virgin/Delta, T4 SkyTeam/Gulf, T5 British Airways) with ground transit via: Heathrow Express runs non-stop to London Paddington in 15 minutes; Elizabeth Line reaches Bond Street (Mayfair) in 32 minutes and Liverpool Street in 39 minutes.
How do I check live fares and exact baggage inclusions for IAD to LHR?
Use the live flight table on this page or click "Search Live IAD → LHR Flights" to query real-time airline inventory, exact carry-on and checked bag counts, and instant airline PNR ticketing.