⚡ Fare recorded April 25, 2026 · Prices change daily

Washington DC to London flights

Washington DC (IAD) to London (LON): 3,667 miles (5,902 km) great-circle, about 7h 50m nonstop by our estimate. Cheapest fare observed: $1088 round-trip on airline P3, with 2 stops, departing June 20, 2026.

P3P3P32726
Depart
IAD
Washington DC, USA
16:00
2026-06-20
✈
Arrive
LON
London, United Kingdom
Returns 06:30
2026-07-03
Stops
2 stops
Distance
3,667 mi
Est. nonstop time
7h 50m
Trip type
Round-trip
$1088
Round-trip · per person
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About this flight

When did the cheapest Washington DC to London fare fly?

$1088 round-trip, airline P3 P32726, departing 2026-06-20 at 16:00, returning 2026-07-03. The recorded itinerary left on a Saturday, returning on a Friday 13 nights later; the fare was observed 56 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Washington DC from London?

  • Distance: 3,667 miles (5,902 km) great-circle, heading northeast (measured to London Heathrow Airport, LHR).
  • Estimated nonstop flight time: about 7h 50m.
  • Departure airport: Washington Dulles International Airport (IAD), Washington DC, United States, UTC-4 on June 20, 2026.
  • Arrival: London (LON, all airports), United Kingdom, UTC+1 on June 20, 2026.
  • Time difference: London is 5 hours ahead of Washington DC on the recorded date.
  • Route type: international, United States to United Kingdom.
  • Recorded itinerary: airline P3 P32726, 2 stops, round-trip, 13 days between departure and return.
Fare comparison

How does the Washington DC to London fare compare with other routes from IAD?

At $1088, it ranked 23rd of the 30 round-trip fares we recorded from IAD (median $775). That is 29.7 cents per great-circle mile (round-trip price over one-way distance), above the IAD median of 22.5 cents across 30 round-trip routes.

Routes from IAD of similar length: Casablanca (3,821 mi) at $865 and Paris (3,851 mi) at $1170.

airline P3 had the cheapest fare on 2 of 30 IAD routes. It is the 16th longest of the 30 routes we track from IAD.

Other ways in

What did other cities pay to fly to London?

Of 49 departure airports with a fare to London, Washington DC (IAD) ranked 44th at $1088. Lowest: $46 from Dublin (DUB); highest: $1356 from Sydney (SYD); 14 nonstop. Cheapest-fare airlines (routes): Ryanair (7), easyJet (4), Etihad (4), Frontier (4), Air Canada (3) and WestJet (3), plus 19 more.

Entry requirements

Do you need a visa to fly to United Kingdom?

That depends on your passport and trip, so check the official source for United Kingdom: GOV.UK: check if you need a UK visa. Connecting elsewhere? Check that country's transit rules too.

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, Europe/London; flight time is our estimate.

FAQ

Washington DC to London flight questions

How far is Washington DC from London by plane?

+
Washington DC is about 3,667 miles (5,902 km) from London on a great-circle line from Washington Dulles International Airport (IAD) to London Heathrow Airport (LHR), heading northeast. LON is the city code that covers every commercial airport in London; distances on this page are measured to London Heathrow Airport (LHR). It is the 16th longest of the 30 routes we track from IAD. The recorded itinerary had 2 stops, so the distance flown was longer.

How long is the flight from Washington DC to London?

+
About 7h 50m nonstop by our estimate for 3,667 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded airline P3 fare was with 2 stops. 49 airports in our feed had a fare to London; this one ranked 44th, and 14 of the 49 were nonstop.

What is the time difference between Washington DC and London?

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On June 20, 2026, Washington DC was on UTC-4 (America/New_York) and London on UTC+1 (Europe/London), so London was 5 hours ahead of Washington DC: noon in Washington DC was 17:00 in London. Both zones shift for daylight saving together, so the gap stays the same in January and July.

How much is a flight from Washington DC to London?

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As observed on April 25, 2026: $1088 per person round-trip on airline P3 flight P32726, departing June 20, 2026, returning July 3, 2026, with 2 stops. At $1088, it ranked 23rd of the 30 round-trip fares we recorded from IAD (median $775). That is 29.7 cents per great-circle mile (round-trip price over one-way distance), above the IAD median of 22.5 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Washington DC to London?

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The cheapest recorded fare had 2 stops; our feed keeps only the cheapest fare per route, so a pricier nonstop may exist. Into London, 14 of the 49 recorded fares were nonstop. From IAD, 7 of 30 were. Routes from IAD of similar length: Casablanca (3,821 mi) at $865 and Paris (3,851 mi) at $1170.

Which airports serve flights from Washington DC to London?

+
It departs Washington Dulles International Airport (IAD) in Washington DC, United States, and arrives at London (LON) in London, United Kingdom. LON is the city code that covers every commercial airport in London; distances on this page are measured to London Heathrow Airport (LHR). An international flight, United States to United Kingdom.

Where else near London can you fly from Washington DC?

Paris (PAR) $1170Milan (MIL) $1053Casablanca (CMN) $865Istanbul (IST) $685Moscow (MOW) $1335Cairo (CAI) $1087All flights from Washington DC →

Other cities with flights to London

From Dublin (DUB) $46From Oslo (OSL) $46From Copenhagen (CPH) $48From Krakow (KRK) $57From Stockholm (ARN) $68From Porto (OPO) $72

Ready to fly?

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