Search & Compare - Washington to London Flights & Tickets

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Cheap flights from Washington to London (IAD to LHR)

Looking for a cheap last-minute deal or the best round-trip flight from Washington to London? Find the biggest savings on one-way and round-trip tickets right here.

Recent airfare deals on Washington to London

Avianca  AV
Avianca
Washington
2025-06-11
London
USD 452

One-way AV fare found on 2025-06-05
Virgin Atlantic  VS
Virgin Atlantic
Washington
2025-06-11
London
USD 611

One-way VS fare found on 2025-06-05
Air France  AF
Air France
Washington
2025-06-11
London
USD 626

One-way AF fare found on 2025-06-05
Delta Airlines  DL
Delta Airlines
Washington
2025-06-11
London
USD 772

One-way DL fare found on 2025-06-05
Virgin Atlantic  VS
Virgin Atlantic
Washington
2025-06-11
London
USD 1018

One-way VS fare found on 2025-06-05
United Airlines  UA
United Airlines
Washington
2025-06-11
London
USD 1018

One-way UA fare found on 2025-06-05
Delta Airlines  DL
Delta Airlines
Washington
2025-06-11
London
USD 1023

One-way DL fare found on 2025-06-05
KLM Airlines  KL
KLM Airlines
Washington
2025-06-11
London
USD 1044

One-way KL fare found on 2025-06-05
Lufthansa Airlines  LH
Lufthansa Airlines
Washington
2025-06-11
London
USD 1062

One-way LH fare found on 2025-06-05
Delta Airlines  DL
Delta Airlines
Washington
2025-06-11
London
USD 11743

One-way DL fare found on 2025-06-05


*Prices are per person and are for e-tickets and include all taxes & fees in USD.
*Fareleaders always attempts to get accurate pricing, however, prices are not guaranteed.
*Fareleaders is not seller, we aggregate tones of data for you from other online travel agencies and external sources.

Facts to know while booking flights from Washington to London

What are the airports in Washington?
IAD,BWI,DCA
What’s the most popular airline flying from IAD to LHR?
The most popular airline flying from Washington to London are Aer Lingus, Austrian Airlines, British Airways, Brussels Airlines, American Airlines, Air France, Air Canada, KLM Airlines, Lufthansa Airlines, Scandinavian Airlines, TAP - Air Portugal, Swissair, Turkish Airlines, Virgin Atlantic, Avianca, United Airlines, Finnair, Delta Airlines
Can I fly from IAD to LHR non-stop?
Yes, you can fly IAD to LHR non-stop on Austrian Airlines, British Airways, American Airlines, Finnair
Which airlines fly nonstop between Washington and London?
The non-stop flights between Washington and London are Austrian Airlines, British Airways, American Airlines, Finnair.
What’s the earliest departure time from IAD to LHR Airport?
The earliest flight leaves IAD at 6:00 am and lands in LHR - London Heathrow
What are the airports in London?
LHR
Can I make changes to my Washington to London flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from IAD to LHR?
Read the fare rules of the Washington to London air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Washington and London?
NULL, Star Alliance, Oneworld, Star Alliance, Oneworld, SkyTeam, Star Alliance, SkyTeam, Star Alliance, Star Alliance, Star Alliance, Star Alliance, Star Alliance, Sky Team, Star Alliance, Star Alliance, Oneworld, SkyTeam operate flights between Washington and London
How long does a flight from Washington to London take?
It takes approximately 8 hour to fly non-stop from IAD to LHR, which is 3676.74 miles by air.
Which airlines provide the cheapest flights from Washington (IAD) to London (LHR) ?
In the past couple of days, the cheapest tickets to LHR from IAD were found on Virgin Atlantic : USD 1018
Do I need a passport to fly between IAD and LHR?
Yes
What’s the latest departure time from IAD to LHR ?
The last flight leaves IAD at 10:40 pm

Flights from Washington to London

Origin AirportWashington Dulles International , Washington, US
Destination AirportLondon Heathrow , London, GB
Served by AirlinesAer Lingus, Austrian Airlines, British Airways, Brussels Airlines, American Airlines, Air France, Air Canada, KLM Airlines, Lufthansa Airlines, Scandinavian Airlines, TAP - Air Portugal, Swissair, Turkish Airlines, Virgin Atlantic, Avianca, United Airlines, Finnair, Delta Airlines
Lowest PriceVirgin Atlantic : USD 1018
Distance3677 miles

Airlines Flying from Washington Dulles International

Popular Routes

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