Cheap flights from Dulles Intl (IAD) to London (LON)

IAD — LON
May 30 — Jun 61

How to find the cheapest flight from Dulles Intl to London

All the information you need to plan the best IAD to LON flight in 2022: compare Dulles Intl to London flight prices with the expected peak season, weather and rainfall in London.

IAD - LON

Price

$634 - $863

LON

Temperature

39.2 - 62.6 °F

LON

Rainfall

1.6 - 2.8 inches

Popular inJuneHigh demand for flights, 18% potential price rise
Cheapest inOctoberBest time to find cheap flights, 10% potential price drop
Round-trip from$634From Washington, D.C. Dulles Intl to London (LON)
One-way from$283One-way flight from Washington, D.C. Dulles Intl to London (LON)

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

Travelers have found it’s best to book a flight 48 days in advance to save up to 49% 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 48 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. Dulles Intl Airport to London 1-2 weeks in advance for as low as $825, or $1,055 for flights within the next 24 hours.

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

The best pricing can be found in the month of October. Prices to London from Washington, D.C. Dulles Intl Airport average $708. You can even find prices in October for less than $708, as users have found deals to London from as low as $565. The month of June appears to be one of the more expensive times to travel to London from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 25%.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to London (IAD - LON)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to London as you normally would.

Cheap flights from Dulles Intl to London in May, June 2022

The best prices found for IAD to LON flights for May, June
Jun 29 - Jul 3
IAD

Washington, D.C. Dulles Intl

STN

London Stansted

2 stops

20h 10m
STN

London Stansted

IAD

Washington, D.C. Dulles Intl

2 stops

19h 00m
$470

Multiple Airlines

View Deal

Deal found 23/5/22

Jun 9 - Jun 15
IAD

Washington, D.C. Dulles Intl

STN

London Stansted

2 stops

24h 35m
STN

London Stansted

IAD

Washington, D.C. Dulles Intl

2 stops

19h 00m
$471

Multiple Airlines

View Deal

Deal found 24/5/22

Jun 23 - Jun 28
IAD

Washington, D.C. Dulles Intl

STN

London Stansted

2 stops

24h 35m
STN

London Stansted

IAD

Washington, D.C. Dulles Intl

2 stops

27h 25m
$473

Multiple Airlines

View Deal

Deal found 23/5/22

Dulles Intl to London 2022 flight deals

Cheap flights to London from Dulles Intl found for this year
Oct 10 - Oct 13
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 45m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 30m
$384

Scandinavian Airlines

View Deal

Deal found 23/5/22

Oct 5 - Oct 9
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 45m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 30m
$385

Scandinavian Airlines

View Deal

Deal found 24/5/22

Oct 7 - Oct 11
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 45m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 30m
$386

Scandinavian Airlines

View Deal

Deal found 25/5/22

Cheap Scandinavian Airlines flights from Dulles Intl to London

Oct 10 - Oct 13
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 45m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 30m
$384

Scandinavian Airlines

View Deal

Deal found 23/5/22

Oct 5 - Oct 9
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 45m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 30m
$385

Scandinavian Airlines

View Deal

Deal found 24/5/22

Aug 29 - Sep 13
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 45m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 30m
$386

Scandinavian Airlines

View Deal

Deal found 25/5/22

  • If you’re traveling from Washington, D.C. Dulles Intl Airport to London, one of the more common airlines traveling that route is Scandinavian Airlines. Flights from Scandinavian Airlines traveling this route typically cost $746.40 RT. This price is typically 51% more expensive than other airlines that offer Washington, D.C. Dulles Intl Airport to London flights. When booking this route, the cheapest RT price found was $573. When traveling from Washington, D.C. Dulles Intl Airport to London on Scandinavian 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. Dulles Intl Airport to London, Scandinavian Airlines flights are 12% more popular than any other airline flying that same route.

Cheap Icelandair flights from Dulles Intl to London

Oct 3 - Oct 13
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

1 stop

10h 15m
LGW

London Gatwick

IAD

Washington, D.C. Dulles Intl

1 stop

11h 05m
$537

Icelandair

View Deal

Deal found 24/5/22

Nov 8 - Nov 29
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

1 stop

10h 10m
LGW

London Gatwick

IAD

Washington, D.C. Dulles Intl

1 stop

11h 00m
$539

Icelandair

View Deal

Deal found 24/5/22

Sep 1 - Sep 8
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

1 stop

10h 15m
LGW

London Gatwick

IAD

Washington, D.C. Dulles Intl

1 stop

11h 05m
$540

Icelandair

View Deal

Deal found 22/5/22

  • One of the most popular airlines traveling from Washington, D.C. Dulles Intl Airport to London is Icelandair. Washington, D.C. Dulles Intl Airport to London flights are typically 70% cheaper than other airlines traveling the same route. Flights from Icelandair typically cost $766.97 RT. The cheapest Icelandair flight found for this route was $581. The most popular departure airport in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to London, Icelandair flights are 7% more popular than any other airline flying that same route.

Non-stop flights to London from Dulles Intl

Save time with Dulles Intl to London direct flight deals
Aug 17 - Aug 24
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$598

Virgin Atlantic

View Deal

Deal found 23/5/22

Sep 1 - Sep 13
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$600

Virgin Atlantic

View Deal

Deal found 24/5/22

Sep 29 - Oct 4
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 15m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 15m
$623

British Airways

View Deal

Deal found 23/5/22

Last minute flights from Dulles Intl to London

Late deals on return flights to London from Dulles Intl, departing today and this week
May 31 - Jun 5
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

2 stops

18h 20m
LGW

London Gatwick

IAD

Washington, D.C. Dulles Intl

2 stops

17h 40m
$622

Multiple Airlines

View Deal

Deal found 24/5/22

May 31 - Jun 11
IAD

Washington, D.C. Dulles Intl

STN

London Stansted

2 stops

20h 10m
STN

London Stansted

IAD

Washington, D.C. Dulles Intl

2 stops

30h 00m
$644

Multiple Airlines

View Deal

Deal found 22/5/22

May 30 - Jun 5
IAD

Washington, D.C. Dulles Intl

LTN

London Luton

1 stop

21h 15m
LTN

London Luton

IAD

Washington, D.C. Dulles Intl

1 stop

20h 40m
$659

Multiple Airlines

View Deal

Deal found 22/5/22

One-way flights to London All airports from Dulles Intl

The cheapest one-way flights from Dulles Intl to London
Sep 26
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

1 stop

12h 35m
$261

TAP AIR PORTUGAL

View Deal

Deal found 23/5/22

Oct 10
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

10h 20m
$264

Icelandair

View Deal

Deal found 24/5/22

Oct 10
IAD

Washington, D.C. Dulles Intl

LGW

London Gatwick

1 stop

10h 15m
$264

Icelandair

View Deal

Deal found 24/5/22

Related info for your journey

Useful info, stats and facts about Dulles Intl to London flights.

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

Some of the carriers operating flights from Washington, D.C. Dulles Intl to London that may be offering flexible cancellation policies are British Airways, United Airlines, and Lufthansa. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

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

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to London for under $400. The cheapest flight booked recently is on Scandinavian Airlines for just $384, but on average you can expect to pay $401.

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

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to London under $600. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to London is less than $630.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to London for under $700?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to London within the next 7 days for less than $700.

What days are nonstop flights available from Washington, D.C. Dulles Intl Airport to London?

Nonstop flights can be found on the following days: Monday, Saturday.

How many flights depart from Washington, D.C. Dulles Intl Airport to London on average per day?

Travelers can expect 4 flights from Washington, D.C. Dulles Intl Airport to London on average per day.
Evening (6pm - Midnight) - 100% of flight departures

How long is the flight from Washington, D.C. Dulles Intl Airport to London?

Airlines like Scandinavian Airlines and TAP AIR PORTUGAL fly from Washington, D.C. Dulles Intl Airport to London in about 12h 35m. The time it takes to get you to your destination can typically vary by up to 5h 10m. Washington, D.C. Dulles Intl Airport and London are separated by a distance of 3687 mi. This flight may include one or multiple stops.

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

According to our current data, Scandinavian Airlines ($384), and TAP AIR PORTUGAL ($432) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to London. Scandinavian Airlines is priced at 45% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to London one-way?

The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $261. However, be on the lookout for offers from Icelandair and Austrian Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to London for a low price.

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

When deciding which route to take from Washington, D.C. Dulles Intl Airport to London consider Washington, D.C. Dulles Intl - London Heathrow, Washington, D.C. Dulles Intl - London Gatwick or Washington, D.C. Dulles Intl - London City as they are the most popular.

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

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to London are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to London on time: Air France (73%), Virgin Atlantic (73%), Air Canada (72%).

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

While on average a flight from Washington, D.C. Dulles Intl Airport to London is generally $2,572, our data shows the cheapest flight currently is $332. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay $384 for that flight.

Alternative routes for Dulles Intl to London

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

Top 5 airlines flying from Dulles Intl to London

The chart below displays the airlines Cheapflights users traveling from Dulles Intl 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$14Average$20FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Virgin AtlanticCheapest$294Average$727FlexibilityNo cancel feeOn-time72%COVID-19 safety
Search Virgin Atlantic flights
KLMCheapest$327Average$686FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search KLM flights
TAP AIR PORTUGALCheapest$336Average$481FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search TAP AIR PORTUGAL flights
PLAYCheapest$365Average$509FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search PLAY flights

Hourly flight availability from Dulles Intl to London

See what time of day planes typically take off from Dulles Intl to London
1%of flight departuresEarly morningMidnight to 6 am
12%of flight departuresMorning6 am to noon
54%of flight departuresAfternoonNoon to 6 pm
33%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Dulles Intl to London

See how many times per day planes take to the skies headed from Dulles Intl to London
Sunday16daily flights
Monday22daily flights
Tuesday27daily flights
Wednesday26daily flights
Thursday16daily flights
Friday12daily flights
Saturday17daily flights