Question 1

What is the cheapest airline to fly from Washington, D.C. to London round-trip?

Accepted Answer

PLAY, at £306, was found to be the cheapest airline from Washington, D.C. to London.. This flight start at 45% lower than the current average price 3 months from now.

Question 2

How recently were the Washington, D.C. to London flight deals updated?

Accepted Answer

The Washington, D.C. to London flight deals you see on this page were last updated on 12/6.

Question 3

How far ahead should I book a flight from Washington, D.C. to London?

Accepted Answer

The best time to book flights from Washington, D.C. to London is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 4

What is the cheapest month to book a flight from Washington, D.C. to London?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to London (average of £110). Flying from Washington, D.C. to London in July is currently the most expensive (average of £163). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from Washington, D.C. to London?

Accepted Answer

Travellers seeking maximum savings on their Washington, D.C. to London flight should consider departing on Thursday at midday when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Question 8

What are the most popular routes from Washington, D.C. to London?

Accepted Answer

The most popular route from Washington, D.C. to London is Washington, D.C. Dulles Intl - London Heathrow. You may also consider Baltimore/Washington - London Heathrow or Washington, D.C. Dulles Intl - London Gatwick.

Question 9

What are the cheapest flights from Washington, D.C. to London?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £337. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for £383 on average our data indicates £938 when flying from Washington, D.C. to London.

Question 10

What are the most reliable airlines from Washington, D.C. to London?

Accepted Answer

Before booking your flight to London from Washington, D.C., check out the most reliable airlines to get you to your destination on time: American Airlines (66%), Aer Lingus (66%), Finnair( 66%).

Question 11

What are the most popular airlines that fly from Washington, D.C. to London?

Accepted Answer

Before booking your flight from Washington, D.C. to London check out the most popular airlines for this route: American Airlines, Air France or British Airways.

Question 12

Can I find flights from Washington, D.C. to London for under £400 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from Washington, D.C. to London for under £400. The cheapest flight booked recently is on PLAY for just £306, but on average you can expect to pay £310.

Question 13

Are there nonstop flights from Washington, D.C. to London for under £400 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from Washington, D.C. to London under £400. A good price for a nonstop flight from Washington, D.C. to London is less than £444.

Question 14

Are there last-minute flights available from Washington, D.C. to London for under £500?

Accepted Answer

There are currently 20+ open flights from Washington, D.C. to London within the next 7 days for less than £500.

Question 15

What is the cheapest day to fly round-trip from Washington, D.C. to London?

Accepted Answer

Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 11% on the overall cost on flights from Washington, D.C. to London.

Question 16

How far in advance should I book a flight from Washington, D.C. to London?

Accepted Answer

Find a great deal and save up to 17% by booking at least 24 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. to London within the next two weeks, with the cheapest ticket starting at £602.

Question 17

What is the cheapest month to fly from Washington, D.C. to London?

Accepted Answer

October is one of the best times of the year to fly to London from Washington, D.C.. Prices for October average £564 per person but you can even find prices for as low as £278. The most expensive prices can be found in the month of June. Opting for a October flight can save you 40% on your journey compared to booking in June

Question 18

What is the cheapest time of day to fly from WAS to LON?

Accepted Answer

It’s optimal to fly from Washington, D.C. to London in the afternoon. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at midday.

Question 19

Accepted Answer

One of the most popular airlines travelling from Washington, D.C. to London is SWISS. Flights on this route from SWISS typically cost £754.86 RT, a price that is 54% cheaper than the average Washington, D.C. to London flight. The cheapest flight found was £659 RT. Washington, D.C. Dulles Intl Airport is the most common Washington, D.C. airport to take off from when flying to London. London Heathrow Airport is the most popular arrival airport in London. When flying from Washington, D.C. to London, SWISS flights are 8% more popular than any other airline flying that same route.

Question 20

Accepted Answer

If you’re travelling from Washington, D.C. to London, one of the more common airlines travelling that route is United Airlines. Flights on this route from United Airlines typically cost £810.24 RT, a price that is 51% cheaper than the average Washington, D.C. to London flight. The cheapest flight found was £434 RT. When travelling from Washington, D.C. to London on United Airlines, the most popular airport to depart from is Washington, D.C. Dulles Intl Airport and the most popular airport to arrive at is London Heathrow Airport. When flying from Washington, D.C. to London, United Airlines flights are 6% more popular than any other airline flying that same route.

Question 21

What does IAD to LHR mean?

Accepted Answer

This is defined as Washington, D.C. Dulles Intl Airport (IAD) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

Question 22

Can I find deals for flights from Washington, D.C. to London that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your Washington, D.C. to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 23

Can I find deals on flights from Washington, D.C. to London with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter Washington, D.C. to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 24

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 25

How can I find direct flights from Washington, D.C. to London?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to London.

Question 26

Can I find deals for business class flights from Washington, D.C. to London?

Accepted Answer

Yes. Cheapflights offers flight deals from Washington, D.C. to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 27

Can I find deals for flights from Washington, D.C. to London that allow pets onboard?

Accepted Answer

Many airlines flying from Washington, D.C. to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 28

Can I find deals on last-minute flights from Washington, D.C. to London?

Accepted Answer

Yes, you can often find last-minute deals on Washington, D.C. to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 29

How does Cheapflights help users find flights from Washington, D.C. to London?

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 30

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to London?

Accepted Answer

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington, D.C. to London.

Question 31

Can Cheapflights find flights from Washington, D.C. to London with no change fees?

Accepted Answer

Certainly. Search results for flights to London from Washington, D.C. shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 32

Can Cheapflights notify me if prices for flights from Washington, D.C. to London become cheaper?

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Washington, D.C. today and book when prices fit your budget.

Popular in	June
Cheapest in	October
Average price	£794
Round-trip from	£68

Airline	Cheapest	Average	Flexibility	On-time
Norse Atlantic UK	Cheapest£250	Average£558	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Virgin Atlantic	Cheapest£341	Average£636	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Aer Lingus	Cheapest£376	Average£496	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Icelandair	Cheapest£380	Average£578	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Lufthansa	Cheapest£449	Average£571	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£450	Average£592	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
British Airways	Cheapest£480	Average£661	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£496	Average£710	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Air France	Cheapest£516	Average£658	FlexibilityNo cancel fee	On-time77%	Search Air France flights
KLM	Cheapest£518	Average£593	FlexibilityNo cancel fee	On-time75%	Search KLM flights

0%of flight departures	Early morningMidnight to 6 am
0%of flight departures	Morning6 am to noon
36%of flight departures	AfternoonNoon to 6 pm
64%of flight departures	Evening6 pm to midnight

Monday	30daily flights
Tuesday	30daily flights
Wednesday	30daily flights
Thursday	30daily flights
Friday	30daily flights
Saturday	24daily flights
Sunday	30daily flights

Cheap flights from Washington, D.C. to London from £139

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

The best prices from Washington, D.C. to London are usually found in October or January, booked 59 days in advance, depart on a Monday or Friday and return on a Wednesday

Cheap flight deals from Washington, D.C. to London

Popular in

Cheapest in

Average price

Round-trip from

What is the cheapest day to fly round-trip from Washington, D.C. to London?

How far in advance should I book a flight from Washington, D.C. to London?

What is the cheapest month to fly from Washington, D.C. to London?

What is the cheapest time of day to fly from WAS to LON?

Cheap SWISS flights from Washington, D.C. to London

Consider these cheap SWISS flights we've found departing from Washington, D.C. to London. It's recommended that users confirm their flight details before booking.

Cheap United Airlines flights from Washington, D.C. to London

Some of the best deals we've found on United Airlines flights travelling from Washington, D.C. to London. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap Washington, D.C. to London flights in June & July 2024

Find cheap flight options from Washington, D.C. to London specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 997,609 searches. Prices were last updated on 12 June 2024.

The lowest fares we've come across on flights travelling from Washington, D.C. to London in June and July 2024. If these deals don't appeal to you, be sure to come back soon for more options.

Washington, D.C. to London 2024 flight deals

Discover exclusive flight deals for travel between Washington, D.C. and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 997,609 searches. Data last updated 12 June 2024.

The lowest fares we've come across on flights travelling from Washington, D.C. to London in June and July 2024. If these deals don't appeal to you, be sure to come back soon for more options.

Direct flights to London from Washington, D.C.

Consider booking one of these non-stop flights heading from Washington, D.C. to London. Users can also choose from other Washington, D.C. to London flights by using the search form above.

Washington, D.C. to London flights leaving soon

Users seeking a last-minute flight from Washington, D.C. to London should consider booking one of these fares. It's wise to confirm all flight details are correct before booking.

One-way flights to London from Washington, D.C.

Users travelling one-way from Washington, D.C. to London can select one of these great deals. Users can also find round-trip Washington, D.C. to London flights by using the search form above.

Find flights from Washington, D.C. to London within your budget

How far ahead should I book a flight from Washington, D.C. to London?

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to London. Price data was last updated on 31 May 2024.

The best time to book flights from Washington, D.C. to London is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Washington, D.C. to London?

Use this chart to determine the cheapest time to fly return from Washington, D.C. to London. Price data was last updated on 9 June 2024.

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 12 June 2024.

Read through reviews of airlines operating flights from Washington, D.C. to London, such as SWISS, United Airlines and Icelandair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find flights from Washington, D.C. to London for under £400 on Cheapflights?

Are there nonstop flights from Washington, D.C. to London for under £400 on Cheapflights?

Are there last-minute flights available from Washington, D.C. to London for under £500?

What is the cheapest airline to fly from Washington, D.C. to London round-trip?

What are the most popular routes from Washington, D.C. to London?

What are the most reliable airlines from Washington, D.C. to London?

What are the cheapest flights from Washington, D.C. to London?

What does IAD to LHR mean?

Can I find deals for flights from Washington, D.C. to London that include extra baggage allowance?

Can I find deals on flights from Washington, D.C. to London with specific airlines?

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

How can I find direct flights from Washington, D.C. to London?

Can I find deals for business class flights from Washington, D.C. to London?

Can I find deals for flights from Washington, D.C. to London that allow pets onboard?

Can I find deals on last-minute flights from Washington, D.C. to London?

How recently were the Washington, D.C. to London flight deals updated?

What are the most popular airlines that fly from Washington, D.C. to London?

What is the cheapest month to book a flight from Washington, D.C. to London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to LondonSee prices for flight routes from nearby airports that may be better suited for you.

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Washington, D.C. to London

Popular flight searches

Check out other popular destinations found by fellow travellers in 2024

Search flights from Washington, D.C. to London by cabin class

Find flights from Washington, D.C. to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Washington, D.C. to London

Find hourly flight availability from Washington, D.C. to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2024.

Weekly flight availability from Washington, D.C. to London

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to London?

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to London?

Can Cheapflights find flights from Washington, D.C. to London with no change fees?

Alternative routes for Washington, D.C. to London
See prices for flight routes from nearby airports that may be better suited for you.