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

WAS — LON
Sep 27 — Oct 41

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

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 2022: 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$214One-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 Sunday, 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 29% 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 $882, or $1,011 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 8% on your trip compared to booking a flight in the morning.

Cheap flights from Washington, D.C. to London in September, October 2022

The best prices found for WAS to LON flights for September, October
Oct 17 - Oct 30
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 35m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 25m
$318

PLAY

Pick Dates

Deal found 20/9/22

Oct 17 - Oct 28
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 35m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 15m
$325

PLAY

Pick Dates

Deal found 22/9/22

Oct 24 - Oct 29
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 35m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 15m
$328

PLAY

Pick Dates

Deal found 22/9/22

Washington, D.C. to London 2022 flight deals

Cheap flights to London from Washington, D.C. found for this year
Nov 11 - Nov 21
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 25m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 25m
$312

PLAY

Pick Dates

Deal found 21/9/22

Oct 17 - Oct 30
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 35m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 25m
$318

PLAY

Pick Dates

Deal found 20/9/22

Nov 7 - Nov 14
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 25m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 25m
$322

PLAY

Pick Dates

Deal found 22/9/22

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

Nov 30 - Dec 7
BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

19h 00m
LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

11h 15m
$447

Icelandair

Pick Dates

Deal found 21/9/22

Nov 11 - Nov 18
BWI

Baltimore/Washington

LGW

London Gatwick

1 stop

10h 25m
LGW

London Gatwick

BWI

Baltimore/Washington

1 stop

11h 30m
$449

Icelandair

Pick Dates

Deal found 22/9/22

Nov 6 - Nov 11
BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

19h 00m
LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

11h 15m
$450

Icelandair

Pick Dates

Deal found 21/9/22

  • One of the most popular airlines traveling from Washington, D.C. to London is Icelandair. Washington, D.C. to London flights are typically 53% cheaper than other airlines traveling the same route. Flights from Icelandair typically cost $846.35 RT. The cheapest Icelandair flight found for this route was $618. The most popular departure airport in Washington, D.C. when flying to London is Washington, D.C. Dulles Intl Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from Washington, D.C. to London, Icelandair flights are 8% more popular than any other airline flying that same route.

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

Oct 5 - Nov 21
DCA

Washington, D.C. Reagan-National

LHR

London Heathrow

1 stop

11h 55m
LHR

London Heathrow

DCA

Washington, D.C. Reagan-National

2 stops

18h 24m
$619

Iberia

Pick Dates

Deal found 21/9/22

Sep 28 - Oct 5
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 15m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 45m
$739

Iberia

Pick Dates

Deal found 21/9/22

Sep 27 - Oct 26
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 15m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

12h 45m
$742

Iberia

Pick Dates

Deal found 20/9/22

  • One of the most popular airlines traveling from Washington, D.C. to London is Iberia. Flights on this route from Iberia typically cost $786.45 RT, a price that is 79% cheaper than the average Washington, D.C. to London flight. The cheapest flight found was $581 RT. When traveling from Washington, D.C. to London on Iberia, 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, Iberia flights are 7% more popular than any other airline flying that same route.

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

Save time with Washington, D.C. to London direct flight deals
Oct 20 - Oct 27
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$586

Virgin Atlantic

Pick Dates

Deal found 20/9/22

Oct 26 - Oct 31
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$588

Virgin Atlantic

Pick Dates

Deal found 22/9/22

Oct 12 - Oct 19
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$590

Virgin Atlantic

Pick Dates

Deal found 20/9/22

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
Oct 2 - Oct 7
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 35m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 15m
$368

PLAY

Pick Dates

Deal found 22/9/22

Sep 27 - Oct 5
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 35m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 15m
$377

PLAY

Pick Dates

Deal found 20/9/22

Sep 27 - Oct 2
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 35m
STN

London Stansted

BWI

Baltimore/Washington

1 stop

11h 15m
$382

PLAY

Pick Dates

Deal found 22/9/22

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

The cheapest one-way flights from Washington, D.C. to London
Dec 7
BWI

Baltimore/Washington

STN

London Stansted

2 stops

33h 49m
$212

Multiple Airlines

Pick Dates

Deal found 20/9/22

Oct 31
BWI

Baltimore/Washington

STN

London Stansted

1 stop

10h 25m
$214

PLAY

Pick Dates

Deal found 21/9/22

Nov 30
BWI

Baltimore/Washington

STN

London Stansted

2 stops

33h 55m
$221

Multiple Airlines

Pick Dates

Deal found 19/9/22

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 PLAY for just $312, but on average you can expect to pay $333.

Are there nonstop flights from Washington, D.C. to London for under $600 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. to London under $600. A good price for a nonstop flight from Washington, D.C. to London is less than $600.

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 are the cheapest airlines flying from Washington, D.C. to London round-trip?

Flying on PLAY is currently your cheapest option to London, with prices starting at $312. Another option worth looking into is TAP AIR PORTUGAL, starting at $355 round trip. PLAY is 57% 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?

American Airlines, Air Canada and Air France 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 (81%), Singapore Airlines (81%) and Air Canada (78%).

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

While on average a flight from Washington, D.C. to London is generally $4,348, our data shows the cheapest flight currently is $409. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay $357 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$664FlexibilityNo cancel feeOn-time72%COVID-19 safety
Search Virgin Atlantic flights
KLMCheapest$327Average$661FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search KLM flights
TAP AIR PORTUGALCheapest$366Average$485FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest$385Average$787FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Brussels Airlines flights
PLAYCheapest$386Average$537FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search PLAY flights
Scandinavian AirlinesCheapest$400Average$719FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Scandinavian Airlines flights
IcelandairCheapest$405Average$661FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Icelandair flights
WOW airCheapest$410Average$625FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search WOW air flights
IberiaCheapest$505Average$734FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Iberia 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
54%of flight departuresAfternoonNoon to 6 pm
45%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
Monday17daily flights
Tuesday27daily flights
Wednesday22daily flights
Thursday27daily flights
Friday22daily flights
Saturday22daily flights