Cheap Flights from Washington D.C. (WASA) to London (LOND)

Compare Washington D.C. to London flight deals

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Flight deals from Washington D.C. to London

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to London? If you want to travel next month, return fares start from $675. Find the lowest prices on one-way and return tickets right here.

London.$662 per passenger.Departing Thu, 19 Nov, returning Sun, 22 Nov.Return flight with Icelandair and easyJet.Outbound indirect flight with Icelandair, departs from Washington Dulles on Thu, 19 Nov, arriving in London Gatwick.Inbound indirect flight with easyJet, departs from London Gatwick on Sun, 22 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $662, select.

London.$663 per passenger.Departing Thu, 22 Oct, returning Thu, 29 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Thu, 22 Oct, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Thu, 29 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From $663, select.

London.$663 per passenger.Departing Sat, 5 Dec, returning Fri, 11 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Sat, 5 Dec, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Fri, 11 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From $663, select.

London.$664 per passenger.Departing Wed, 28 Oct, returning Mon, 2 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Wed, 28 Oct, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Mon, 2 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From $664, select.

London.$665 per passenger.Departing Thu, 19 Nov, returning Fri, 4 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Thu, 19 Nov, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Fri, 4 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $665, select.

London.$670 per passenger.Departing Tue, 22 Sep, returning Tue, 29 Sep.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 22 Sep, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Heathrow on Tue, 29 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $670, select.

London.$674 per passenger.Departing Sat, 12 Sep, returning Fri, 18 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Sat, 12 Sep, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Fri, 18 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From $674, select.

London.$674 per passenger.Departing Sat, 26 Sep, returning Sat, 3 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 26 Sep, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Sat, 3 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From $674, select.

London.$675 per passenger.Departing Tue, 4 Aug, returning Thu, 27 Aug.Return flight with Frontier Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 4 Aug, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Thu, 27 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From $675, select.

London.$724 per passenger.Departing Sun, 9 Aug, returning Tue, 1 Sep.Return flight with Frontier Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Sun, 9 Aug, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Tue, 1 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From $724, select.

London.$728 per passenger.Departing Mon, 21 Sep, returning Sun, 22 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Mon, 21 Sep, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Gatwick on Sun, 22 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From $728, select.

London.$767 per passenger.Departing Thu, 1 Oct, returning Wed, 9 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Thu, 1 Oct, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Wed, 9 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From $767, select.

London.$772 per passenger.Departing Tue, 21 Jul, returning Fri, 28 Aug.Return flight with Frontier Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 21 Jul, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Fri, 28 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From $772, select.

London.$874 per passenger.Departing Sat, 12 Dec, returning Wed, 13 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 12 Dec, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Wed, 13 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $874, select.

London.$884 per passenger.Departing Tue, 25 Aug, returning Fri, 20 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Tue, 25 Aug, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Gatwick on Fri, 20 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From $884, select.

London.$886 per passenger.Departing Sat, 12 Dec, returning Mon, 5 Apr.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 12 Dec, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Heathrow on Mon, 5 Apr, arriving in Washington Dulles.Price includes taxes and charges.From $886, select.

Find the cheapest month to fly from Washington D.C. to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to London flights are currently cheapest in November.

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Direct flights from Washington D.C. to London

Alternative Washington D.C. to London routes

Looking for the cheapest, fastest or easiest route from Washington D.C. to London? You could fly into the following airports instead.

Washington D.C. to London: Flight information

The things to know before you go.

Cheapest flight found	$662
Cheapest month to fly	November
Average flight time	7 hrs, 20 mins
Most popular airline	American Airlines
Average flights per week	263

Finding cheap flights from Washington D.C. to London: Frequently asked questions

How many airports are there in London?

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.

How much are return flights from Washington D.C. to London?

The best price we found for a return flight from Washington D.C. to London is $662. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Washington D.C. to London?

7 hours and 20 minutes is the average flight time from Washington D.C. to London.

Which airlines fly direct from Washington D.C. to London?

American Airlines, British Airways and Lufthansa fly direct from Washington D.C. to London.

How many flights are there a week from Washington D.C. to London?

As of July 2026, there are 263 flights per week flying from Washington D.C. to London.

When is the cheapest time to fly from Washington D.C. to London?

The cheapest month to fly from Washington D.C. to London is usually November.

Which is the cheapest airport to fly into in London?

If you're flying from Washington D.C., the cheapest airport near London is London Gatwick – which is 40.3 km away from the centre of London. We've found flights into this airport from $662.

Which upcoming date is cheapest to fly from Washington D.C. to London on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to London on Thursday, 19 November 2026.

Can I get a direct flight from Washington D.C. to London?

Yes – the average flight time is 7 hours and 20 minutes.

How can I get the best flight deal from Washington D.C. to London?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in London?

In July, the average temperature is usually around 17°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.

Which is the cheapest airline to fly from Washington D.C. to London with?

The cheapest airline that flies to London is Icelandair. And the cheapest airline that flies to London Heathrow Airport is Finnair.

Flying from Washington DC to London: what you need to know

When looking for a flight from Washington DC to London, there's a nice selection of airports you can take off from. Washington Ronald Reagan Airport (DCA), Washington Dulles Airport (IAD) and Baltimore Washington International Airport (BWI) are some of Washington DC's main terminals.
Land at London Heathrow Airport (LHR) or London Gatwick Airport (LGW). You can also touch down in London at London Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).
Book a direct Washington DC to London flight and you'll be in transit for an average of 7 hours 20 minutes.
The timezone in London is UTC+0, which is five hours ahead of Washington DC.
For a relaxed travel experience, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to catch your Washington DC to London flight.
You'll likely experience longer lines during popular months like August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a smart move.

How to find the cheapest flights from Washington DC to London

To pick up cheap Washington DC to London flights, book early. Airlines usually offer their most competitively priced fares when flights first go on sale.
Getting cheap plane tickets from Washington DC to London is easy if you can be flexible with your travel plans. Use the 'Whole month' function to see the best prices across the month and walk away with a fantastic deal.
Finding a cheap flight from Washington DC to London is a piece of cake with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know as soon as a better deal is available.
Tailor your travel plans using filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' Washington DC to London flights.

Flying from Washington DC

Washington Ronald Reagan Airport (DCA)

We make it simple to find a Washington DC to London flight with a stopover. To see the options departing from Washington Ronald Reagan Airport, uncheck 'Direct flights only.' Then, pick a flight that has a stop long enough to tour the city of your choice. Top stopovers include:
- New York John F. Kennedy Airport (JFK)
- New York Newark Airport (EWR)
- Boston Logan International Airport (BOS)
DCA is around 6 kilometres from central Washington DC. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 10 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the trip time to be around 25 minutes.
After a relaxed start to your journey? Stay near Washington Ronald Reagan Airport. Whether you're catching an early flight from Washington DC to London or just don't want to be rushed, these hotels have you covered:
Of all flights departing from Washington Ronald Reagan Airport, 71% touch down on time at their destination.
DCA is located at 1 Aviation Circle.

Washington Dulles Airport (IAD)

You can catch a direct flight from Washington DC to London leaving from Washington Dulles Airport (IAD). Begin your travels at IAD and disembark at London Heathrow Airport (LHR).
Book a direct Washington DC to London plane ticket with one of these popular airlines that operate this route from IAD:
Break up your Washington DC to London flight with a stop so you can recharge or tick a new place off your list. Some great stopovers between Washington Dulles Airport and London are:
- Amsterdam Schiphol Airport (AMS)
- Paris Charles de Gaulle Airport (CDG)
- New York John F. Kennedy Airport (JFK)
On public transport, you can travel from central Washington DC to IAD in around 1 hour 10 minutes. The airport is roughly 32 kilometres away. Driving will take you about 45 minutes.
Kick off your holiday early with an additional night away from home. Before your flight from Washington DC to London, take it easy in one of these hotels near Washington Dulles Airport:
77% of all departures from Washington Dulles Airport make it to their destination as expected.
The address for IAD is 1 Saarinen Circle.

Baltimore Washington International Airport (BWI)

Baltimore Washington International Airport (BWI) offers direct flights from Washington DC to London. Your trip from BWI will have you landing at London Heathrow Airport (LHR).
British Airways is one popular carrier that offers direct Washington DC to London plane tickets from BWI.
You can book a ticket from Washington DC to London with one or more stops out of Baltimore Washington International Airport (BWI). Here are some of the most common stopovers between BWI and London:
- New York John F. Kennedy Airport (JFK)
- Boston Logan International Airport (BOS)
- Orlando International Airport (MCO)
BWI is around 40 kilometres from central Washington DC. Driving from the city centre to the terminal takes about 40 minutes. If you're thinking about taking public transport, you can expect a journey of around 50 minutes.
Set yourself up for a smooth departure — stay near Baltimore Washington International Airport and know you'll get to your gate with time to spare. Get comfy at one of these hotels the day before if you're catching an early Washington DC to London flight:
Airports have an on-time performance rating that monitors how often flights get to their destinations when they should. At BWI, that figure is 77%.

Arriving in London

London Heathrow Airport (LHR)

London Heathrow Airport (LHR) to central London takes around 45 minutes by car. The centre is roughly 26 kilometres away.
It typically takes 25 minutes to get there when travelling by public transport.
If you're arriving on a late flight from Washington DC to London, few things beat the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and relaxing not long after at one of these accommodation options near LHR:
Pick up a London Heathrow Airport rental car and discover London and beyond with your own wheels. Surprice, U-Save and Green Motion are leading providers you can book with here.
Reserving your ride from London Heathrow Airport about one week ahead gives you the best chance of locking in a great deal.

London Gatwick Airport (LGW)

The centre of London is about 40 kilometres from London Gatwick Airport (LGW). After your flight from Washington DC to London has touched down and you've navigated your way to arrivals, expect a drive of around 1 hour 5 minutes.
Travelling by public transport will take around 45 minutes.
There are some great places ready to welcome you near LGW. Settle in and get cosy after your Washington DC to London flight at any of these perfectly located options:
Forget about inconvenient public transport schedules or slow-moving taxi lines. Pick up a London Gatwick Airport rental car and let your trip unfold on your terms. Check out the availability and rates from Green Motion, U-Save and Drivalia.
Get first dibs on the best options. Booking your ride from LGW three weeks in advance often means better prices and a wider choice of vehicles.

London Stansted Airport (STN)

Head toward the city centre after your flight from Washington DC to London has landed. Central London is about 48 kilometres from London Stansted Airport (STN) and takes roughly 1 hour 5 minutes to reach by taxi or ride-share.
If you go by public transport, expect a journey of about 45 minutes.
If you don't want to make your way into the centre, choose a hotel close to STN. Make yourself comfy at one of these options after your Washington DC to London flight:
Begin your trip without stressing over how to reach your destination with a London Stansted Airport rental car. Find your perfect set of wheels with reliable companies here like Green Motion, Drivalia and Europcar.
If you're looking for a specific make or model, lock in your ride from STN about four weeks ahead of your flight from Washington DC to London. This improves your chances of getting the car you want, on top of a better deal.

Best time to go to London

July is the most popular month for flights from Washington DC to London. To escape the crowds, head to London in March.
Lock in a Washington DC to London ticket departing in July if you want to experience the city during its warmest month. You can expect temperatures in London to range from 11ºC (52ºF) to 26ºC (79ºF).
For cooler conditions, search for a cheap flight from Washington DC to London in January when temperatures average between 0ºC (32ºF) and 9ºC (48ºF).

More about London

Start your London trip right by choosing the perfect place to stay. Once you've booked your flight from Washington DC to London, browse our range of accommodation options including:
There are so many things to see and do in this city it can be tricky to know where to begin. The British Museum, Westminster Abbey and Big Ben are popular attractions which should feature on any well-planned London itinerary.

Explore more of the United Kingdom

You've visited London, now it's time to discover other parts of the United Kingdom. Journey around 257 kilometres northwest to Manchester to check off its leading attractions. From Manchester United Museum & Stadium Tour to The Homes of Football and Science and Industry Museum, you'll have a full itinerary ahead.
Around 161 kilometres northwest of London, Birmingham is another favourite stop in the United Kingdom. Get a taste of what this destination has to offer at Birmingham Museum & Art Gallery, Birmingham Hippodrome and Bournville Experience.