Cheap flights from Washington, D.C. (WAS) to London (LON)

WAS — LON
Feb 7 — Feb 141

The best prices from Washington, D.C. to London are usually found in March or January, booked 60 days in advance, depart on a Wednesday or Monday and return on a Monday

How to find the cheapest flight from Washington, D.C. (WAS) to London (LON)

All the information you need to plan the best WAS to LON flight in 2023: compare Washington, D.C. to London flight prices with the expected peak season, weather and rainfall in London.

WAS - LON

Price

$646 - $896

LON

Temperature

39.2 - 62.6 °F

LON

Rainfall

1.6 - 2.8 inches

Popular inJulyHigh demand for flights, 19% potential price rise
Cheapest inMarchBest time to find cheap flights, 11% potential price drop
Round-trip from$646From Washington, D.C. (WAS) to London (LON)
One-way from$215One-way flight from Washington, D.C. (WAS) to London (LON)

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

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Travelers have found it’s best to book a flight 61 days in advance to save up to 24% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. to London 1-2 weeks in advance for as low as $851, or $965 for flights within the next 24 hours.

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

Our data shows that March tends to be the cheapest month to fly to London from Washington, D.C.. Users have commonly found prices around $728 for the month, but tickets can be as low as $501. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Washington, D.C. to London (WAS - LON)?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to London in the evening. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the morning.

Cheap flights from Washington, D.C. to London in February, March 2023

The best prices found for WAS to LON flights for February, March
Feb 28 - Mar 7
BWI

Baltimore/Washington

STN

London Stansted

2 stops

23h 00m
STN

London Stansted

BWI

Baltimore/Washington

2 stops

24h 30m
$355

Multiple Airlines

Pick Dates

Deal found 1/30

Feb 28 - Mar 7
BWI

Baltimore/Washington

STN

London Stansted

2 stops

23h 00m
STN

London Stansted

BWI

Baltimore/Washington

2 stops

24h 30m
$359

Multiple Airlines

Pick Dates

Deal found 1/31

Feb 28 - Mar 7
BWI

Baltimore/Washington

LGW

London Gatwick

2 stops

20h 25m
LGW

London Gatwick

BWI

Baltimore/Washington

2 stops

24h 30m
$361

Multiple Airlines

Pick Dates

Deal found 1/30

Washington, D.C. to London 2023 flight deals

Cheap flights to London from Washington, D.C. found for this year
Feb 28 - Mar 7
BWI

Baltimore/Washington

STN

London Stansted

2 stops

23h 00m
STN

London Stansted

BWI

Baltimore/Washington

2 stops

24h 30m
$355

Multiple Airlines

Pick Dates

Deal found 1/30

Feb 28 - Mar 7
BWI

Baltimore/Washington

STN

London Stansted

2 stops

23h 00m
STN

London Stansted

BWI

Baltimore/Washington

2 stops

24h 30m
$359

Multiple Airlines

Pick Dates

Deal found 1/31

Feb 28 - Mar 7
BWI

Baltimore/Washington

LGW

London Gatwick

2 stops

20h 25m
LGW

London Gatwick

BWI

Baltimore/Washington

2 stops

24h 30m
$361

Multiple Airlines

Pick Dates

Deal found 1/30

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

Feb 9 - Feb 13
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 05m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 25m
$570

Finnair

Pick Dates

Deal found 1/31

Feb 9 - Feb 21
BWI

Baltimore/Washington

LHR

London Heathrow

Nonstop

6h 55m
LHR

London Heathrow

BWI

Baltimore/Washington

Nonstop

8h 25m
$620

Finnair

Pick Dates

Deal found 2/1

Feb 9 - Feb 16
BWI

Baltimore/Washington

LHR

London Heathrow

Nonstop

6h 55m
LHR

London Heathrow

BWI

Baltimore/Washington

Nonstop

8h 25m
$639

Finnair

Pick Dates

Deal found 2/1

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

Feb 9 - Feb 13
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

23h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 50m
$420

Scandinavian Airlines

Pick Dates

Deal found 1/30

Apr 20 - Apr 29
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

23h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 15m
$424

Scandinavian Airlines

Pick Dates

Deal found 1/30

Non-stop flights to London from Washington, D.C.

Save time with Washington, D.C. to London direct flight deals
Mar 13 - Mar 29
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

6h 55m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 25m
$488

Virgin Atlantic

Pick Dates

Deal found 1/30

Mar 13 - Mar 27
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

6h 55m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 25m
$490

Virgin Atlantic

Pick Dates

Deal found 1/31

Feb 28 - Mar 12
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

6h 55m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$528

Virgin Atlantic

Pick Dates

Deal found 1/31

Last minute flights from Washington, D.C. to London

Late deals on return flights to London from Washington, D.C., departing today and this week
Feb 9 - Feb 22
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 25m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 25m
$396

PLAY

Pick Dates

Deal found 1/30

Feb 9 - Feb 13
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

23h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 50m
$420

Scandinavian Airlines

Pick Dates

Deal found 1/30

Feb 11 - Feb 15
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 25m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 25m
$429

PLAY

Pick Dates

Deal found 1/30

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

The cheapest one-way flights from Washington, D.C. to London
Mar 21
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

1 stop

17h 10m
$183

TAP AIR PORTUGAL

Pick Dates

Deal found 2/1

Mar 21
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

23h 00m
$183

TAP AIR PORTUGAL

Pick Dates

Deal found 2/1

Mar 13
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

1 stop

12h 10m
$184

TAP AIR PORTUGAL

Pick Dates

Deal found 2/1

Reviews of Airlines Servicing London

Delta
7.9
Good
2,034 reviews

Boarding

8.0

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

The flight was delayed leaving ORD by 10 minutes which wasn't a problem. But the plane took a long time to push back from the gate and because of the weather, the plane had to be de-iced. That took 30 minutes or more which caused a problem for many passengers making connections in Atlanta. I appreciate the need for safety and that takes priority over all other considerations, but it would have been nice if flights in Atlanta could have been notified about the delay and those that had tight connections could have made their flights.

Delta
7.9
Good
2,034 reviews
Delta
7.9
Good
2,034 reviews

Boarding

8.0

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

The flight was delayed leaving ORD by 10 minutes which wasn't a problem. But the plane took a long time to push back from the gate and because of the weather, the plane had to be de-iced. That took 30 minutes or more which caused a problem for many passengers making connections in Atlanta. I appreciate the need for safety and that takes priority over all other considerations, but it would have been nice if flights in Atlanta could have been notified about the delay and those that had tight connections could have made their flights.

SWISS
7.7
Good
317 reviews
Delta
7.9
Good
2,034 reviews

Boarding

8.0

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

The flight was delayed leaving ORD by 10 minutes which wasn't a problem. But the plane took a long time to push back from the gate and because of the weather, the plane had to be de-iced. That took 30 minutes or more which caused a problem for many passengers making connections in Atlanta. I appreciate the need for safety and that takes priority over all other considerations, but it would have been nice if flights in Atlanta could have been notified about the delay and those that had tight connections could have made their flights.

United Airlines
7.6
Good
1,184 reviews
Delta
7.9
Good
2,034 reviews

Boarding

8.0

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

The flight was delayed leaving ORD by 10 minutes which wasn't a problem. But the plane took a long time to push back from the gate and because of the weather, the plane had to be de-iced. That took 30 minutes or more which caused a problem for many passengers making connections in Atlanta. I appreciate the need for safety and that takes priority over all other considerations, but it would have been nice if flights in Atlanta could have been notified about the delay and those that had tight connections could have made their flights.

KLM
7.5
Good
118 reviews
Delta
7.9
Good
2,034 reviews

Boarding

8.0

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

The flight was delayed leaving ORD by 10 minutes which wasn't a problem. But the plane took a long time to push back from the gate and because of the weather, the plane had to be de-iced. That took 30 minutes or more which caused a problem for many passengers making connections in Atlanta. I appreciate the need for safety and that takes priority over all other considerations, but it would have been nice if flights in Atlanta could have been notified about the delay and those that had tight connections could have made their flights.

American Airlines
7.4
Good
1,668 reviews
Delta
7.9
Good
2,034 reviews

Boarding

8.0

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

The flight was delayed leaving ORD by 10 minutes which wasn't a problem. But the plane took a long time to push back from the gate and because of the weather, the plane had to be de-iced. That took 30 minutes or more which caused a problem for many passengers making connections in Atlanta. I appreciate the need for safety and that takes priority over all other considerations, but it would have been nice if flights in Atlanta could have been notified about the delay and those that had tight connections could have made their flights.

Related info for your journey

Useful info, stats and facts about Washington, D.C. to London flights.

Which airlines flying from Washington, D.C. to London have flexible cancellations due to COVID-19?

British Airways, United Airlines, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

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

Yes, there are multiple flights from Washington, D.C. to London for under $400. The cheapest flight booked recently is on Multiple Airlines for just $355, but on average you can expect to pay $376.

Are there nonstop flights from Washington, D.C. to London for under $500 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. to London under $500. A good price for a nonstop flight from Washington, D.C. to London is less than $539.

Are there last-minute flights available from Washington, D.C. to London for under $400?

There are currently 20+ open flights from Washington, D.C. to London within the next 7 days for less than $400.

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

Flying on PLAY is currently your cheapest option to London, with prices starting at $371. PLAY is 49% cheaper than the average price of flights available within the next 90 days to this destination.

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

When deciding which route to take from Washington, D.C. to London consider Washington, D.C. Dulles Intl - London Heathrow, Baltimore/Washington - London Heathrow or Washington, D.C. Reagan-National - London Heathrow as they are the most popular.

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

Undisclosed Carrier, American Airlines and Air Canada are the most popular airlines when flying from Washington, D.C. to London.

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

The top 3 most reliable airlines when flying from Washington, D.C. to London are KLM (71%), Delta (71%) and Virgin Atlantic (71%).

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

While on average a flight from Washington, D.C. to London is generally $2,805, our data shows the cheapest flight currently is $480. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay $424 for that flight.

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

The chart below displays the airlines Cheapflights users traveling from Washington, D.C. to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$15Average$21FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Virgin AtlanticCheapest$269Average$680FlexibilityNo cancel feeOn-time72%COVID-19 safety
Search Virgin Atlantic flights
PLAYCheapest$317Average$429FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search PLAY flights
KLMCheapest$327Average$665FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search KLM flights
TAP AIR PORTUGALCheapest$340Average$523FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search TAP AIR PORTUGAL flights
IcelandairCheapest$369Average$649FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Icelandair flights
WOW airCheapest$410Average$625FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search WOW air flights
Scandinavian AirlinesCheapest$451Average$692FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Scandinavian Airlines flights
Aer LingusCheapest$498Average$731FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Aer Lingus flights
DeltaCheapest$516Average$804FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights

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

See what time of day planes typically take off from Washington, D.C. to London
1%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
39%of flight departuresAfternoonNoon to 6 pm
60%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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

See how many times per day planes take to the skies headed from Washington, D.C. to London
Sunday27daily flights
Monday27daily flights
Tuesday27daily flights
Wednesday22daily flights
Thursday22daily flights
Friday27daily flights
Saturday16daily flights
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