Which airlines fly the Boeing 777 (all variants) from IAD to LHR?

See the operators list on this page — it is compiled from open ADS-B observed-flights data updated nightly. Operators with the most recent observations are listed first.

How often is the Boeing 777 (all variants) used on the IAD to LHR route?

Observed model variants and date ranges are listed below. Aircraft assignments can change seasonally; data refreshes nightly.

What is the typical schedule for Boeing 777 (all variants) flights from Washington to London?

Schedules vary by operator. For live schedules and fares, search by aircraft on the FlightFinder home page.

Where does this data come from?

Operator and aircraft observations come from the adsb.lol open ADS-B network under the Open Database License. Data refreshes nightly.

Washington to London on the Boeing 777 (all variants)

IAD → LHR · operated by the Boeing 777 (all variants)

Distance: 5,902 km (3,667 mi)
Est. flight time: ~7h 16m
Operators on Boeing 777 (all variants): 2
Observations (14 days): 2

Airlines operating the Boeing 777 (all variants) on IAD → LHR

Airline	Observations	First seen	Last seen
United Airlines	1	2026-05-20	2026-05-21
British Airways	1	2026-05-21	2026-05-21

About the Boeing 777 (all variants) on this route

The Boeing 777 (all variants) is used by 2 operators on Washington → London.

For specifications, safety record, and global deployment data, see the Boeing 777 (all variants) family page or the Boeing 777 (all variants) safety record.

Other aircraft on the IAD–LHR route

Boeing 767 — 1 observation
Boeing 787 Dreamliner — 1 observation

Airport details

Departure: Washington Dulles International Airport (IAD)

City: Washington
Country: United States
IATA / ICAO: IAD / KIAD

Arrival: London Heathrow Airport (LHR)

City: London
Country: United Kingdom
IATA / ICAO: LHR / EGLL

Frequently asked questions

Which airlines fly the Boeing 777 (all variants) on the IAD-LHR route?

Airlines observed operating the Boeing 777 (all variants) on IAD to LHR include: United Airlines, British Airways.

How often does the Boeing 777 (all variants) fly IAD-LHR?

The Boeing 777 (all variants) was observed 2 times on the IAD–LHR route in the last 14 days across 2 operators.

What's the distance from Washington to London?

The great-circle distance from Washington (IAD) to London (LHR) is approximately 5,902 km (3,667 miles). Estimated flight time is ~7h 16m.

What other aircraft fly the IAD-LHR route?

Other aircraft observed on IAD–LHR include: Boeing 767, Boeing 787 Dreamliner.

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