How long is the flight from IAD to LHR?

Flight time is approximately 7 hours and 0 minutes for nonstop service.

Which airlines fly business class on this route?

Several carriers operate this route with different business class products — lie-flat suites on some, angled-flat seats on others. Tell us your priorities and we’ll match you with the right cabin.

Do all business class seats on this route recline fully flat?

Yes — every carrier we track on this route flies a lie-flat seat, so you get a fully horizontal bed either way.

Does business class on this route include lounge access and Wi-Fi?

2 of 2 carriers we track on this route include lounge access with the business class fare, and 2 offer onboard Wi-Fi.

Business Class Washington D.C. to London

What it costs

Business class, all in.

Recent quotes on Washington D.C. to London. Pick an airline to see what the fare carries.

Low$2,760

Average$6,035

High$7,102

IAD → LHR

Nonstop

American AirlinesAA

CabinBusiness

Total$2,760

Nonstop. Cabin details for this quote are confirmed with your fare.

$1,795 below the route averageGet my fare

The nonstops

Washington D.C. to London in business.

British Airways, United and Virgin Atlantic all fly Washington Dulles to Heathrow nonstop, with BA and United twice a day each. Every departure is an overnight of about seven and a half hours.

Aircraft wing above the clouds at sunrise

Washington D.C. to LondonNonstop

IADWashington D.C.

7h

LHRLondon

Flight time7h

ServiceNonstop

Airlines2 nonstop

Flying it nonstop

BABritish Airways
UAUnited Airlines

BABritish Airways

Club World: lie-flat suite, 2 x 32kg bags.

UAUnited Airlines

Polaris Business: lie-flat seat, 2 x 32kg bags.

Know before you go

Three things worth knowing.

What our specialists check before they price IAD to LHR.

Aircraft at the gate seen through a terminal window

Business class cabin with private suites

When to fly

Virgin’s departure moves later, to 23:25, from 25 October. Summer and the Christmas holidays are the peaks.

Washington D.C. to London, answered.

The questions travellers ask us most about this route.

All questions

Our latest fare check found business class from $2,760 round-trip, and fares move with the airline and how far out you book. Our fare specialists also check consolidator rates and airline sales that don’t show up in a normal search.