Cheap flights from Dulles Intl (IAD) to Heathrow (LHR)

IAD — LHR
Feb 11 — Feb 181

How to find the cheapest flight from Dulles Intl (IAD) to Heathrow (LHR)

All the information you need to plan the best IAD to LHR flight in 2023: compare Dulles Intl to Heathrow flight prices with the expected peak season, weather and rainfall in Heathrow.

IAD - LHR

Price

$641 - $917

LHR

Temperature

39.2 - 62.6 °F

LHR

Rainfall

1.6 - 2.8 inches

Popular inJulyHigh demand for flights, 18% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 14% potential price drop
Round-trip from$641From Washington, D.C. Dulles Intl to London Heathrow
One-way from$229One-way flight from Washington, D.C. Dulles Intl to London Heathrow

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

To save on the cost of your flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, book at least 61 days before your planned departure. Booking around this time can save you about 24% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $851 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $965.

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

March can be a great time to fly to London Heathrow Airport from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $728. Cheapflights users have found deals in the month of March for as cheap as $501. The most expensive prices can be found in the month of July.

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

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 Heathrow Airport as you normally would.

Cheap flights from Dulles Intl to Heathrow in February, March 2023

The best prices found for IAD to LHR flights for February, March

Dulles Intl to Heathrow 2023 flight deals

Cheap flights to Heathrow from Dulles Intl found for this year

Cheap Virgin Atlantic flights from Dulles Intl to Heathrow

  • If you’re traveling from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, one of the more common airlines traveling that route is Virgin Atlantic. Flights from Virgin Atlantic traveling this route typically cost $706.60 RT. This price is typically 56% more expensive than other airlines that offer Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights. When booking this route, the cheapest RT price found was $600. The most popular departure airport in Washington, D.C. Dulles Intl Airport when flying to London Heathrow Airport is Washington, D.C. Dulles Intl Airport. The most popular airport to fly into when visiting London Heathrow Airport is London Heathrow Airport. When flying from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, Virgin Atlantic flights are 8% more popular than any other airline flying that same route.

Cheap Scandinavian Airlines flights from Dulles Intl to Heathrow

  • If you’re traveling from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, one of the more common airlines traveling that route is Scandinavian Airlines. Flights from Scandinavian Airlines traveling this route typically cost $811.17 RT. This price is typically 51% more expensive than other airlines that offer Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights. When booking this route, the cheapest RT price found was $516. When traveling from Washington, D.C. Dulles Intl Airport to London Heathrow Airport 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 Heathrow Airport, Scandinavian Airlines flights are 7% more popular than any other airline flying that same route.

Non-stop flights to Heathrow from Dulles Intl

Save time with Dulles Intl to Heathrow direct flight deals

Last minute flights from Dulles Intl to Heathrow

Late deals on return flights to Heathrow from Dulles Intl, departing today and this week

One-way flights to Heathrow from Dulles Intl

The cheapest one-way flights from Dulles Intl to Heathrow

Reviews of Airlines Servicing Heathrow

SWISS
7.7
Good
317 reviews

Entertainment

7.0

Comfort

7.5

Boarding

7.9

Overall

7.7

Crew

8.4

Food

7.3

Reviews

1 / 10

incompetent ground team, three double seat allocations, admitting on board person without seat allocated, mess with luggage checking at the entry to plane (after gate!) and etc.

SWISS
7.7
Good
317 reviews
SWISS
7.7
Good
317 reviews

Entertainment

7.0

Comfort

7.5

Boarding

7.9

Overall

7.7

Crew

8.4

Food

7.3

Reviews

1 / 10

incompetent ground team, three double seat allocations, admitting on board person without seat allocated, mess with luggage checking at the entry to plane (after gate!) and etc.

Scandinavian Airlines
6.9
Okay
103 reviews
SWISS
7.7
Good
317 reviews

Entertainment

7.0

Comfort

7.5

Boarding

7.9

Overall

7.7

Crew

8.4

Food

7.3

Reviews

1 / 10

incompetent ground team, three double seat allocations, admitting on board person without seat allocated, mess with luggage checking at the entry to plane (after gate!) and etc.

Virgin Atlantic
6.8
Okay
120 reviews
SWISS
7.7
Good
317 reviews

Entertainment

7.0

Comfort

7.5

Boarding

7.9

Overall

7.7

Crew

8.4

Food

7.3

Reviews

1 / 10

incompetent ground team, three double seat allocations, admitting on board person without seat allocated, mess with luggage checking at the entry to plane (after gate!) and etc.

TAP AIR PORTUGAL
6.6
Okay
220 reviews
SWISS
7.7
Good
317 reviews

Entertainment

7.0

Comfort

7.5

Boarding

7.9

Overall

7.7

Crew

8.4

Food

7.3

Reviews

1 / 10

incompetent ground team, three double seat allocations, admitting on board person without seat allocated, mess with luggage checking at the entry to plane (after gate!) and etc.

Icelandair
6.1
Okay
96 reviews
SWISS
7.7
Good
317 reviews

Entertainment

7.0

Comfort

7.5

Boarding

7.9

Overall

7.7

Crew

8.4

Food

7.3

Reviews

1 / 10

incompetent ground team, three double seat allocations, admitting on board person without seat allocated, mess with luggage checking at the entry to plane (after gate!) and etc.

Related info for your journey

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

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

Some of our airline partners flying from Washington, D.C. Dulles Intl to London Heathrow have new flexible policies in place due to COVID-19. United Airlines, British Airways, and Virgin Atlantic are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

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

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport for under $400. The cheapest flight booked recently is on Virgin Atlantic for just $398, but on average you can expect to pay $467.

Are there nonstop flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport for under $400 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport under $400. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport is less than $526.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to London Heathrow Airport for under $500?

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

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

Nonstop flights are available for this route on the following days: Tuesday, Friday.

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

3 flight departures from Washington, D.C. Dulles Intl Airport to London Heathrow Airport per day on average.
Evening (6pm - Midnight) - 100% of flight departures

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

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to London Heathrow Airport in 7h 30m. Fly via Virgin Atlantic, Scandinavian Airlines, or TAP AIR PORTUGAL to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and London Heathrow Airport is about 3687 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Virgin Atlantic, at $398, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to London Heathrow Airport.Alternate airlines to your destination round-trip include Scandinavian Airlines and TAP AIR PORTUGAL. Virgin Atlantic is priced at 46% 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 Heathrow Airport one-way?

One-way options have recently been found by users for as low as $182 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include SWISS from $229 and Icelandair from $259 one-way.

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

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

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

Consider KLM (71%), Delta (71%) or Virgin Atlantic (71%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to London Heathrow Airport.

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

On average you can expect to pay $2,772 for a flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport. The cheapest flight overall is $475 while the most popular route, (Washington, D.C. Dulles Intl - London Heathrow) is currently priced at $398.

Alternative routes for Dulles Intl to Heathrow

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

Top 10 airlines flying from Dulles Intl to Heathrow

The chart below displays the airlines Cheapflights users traveling from Dulles Intl to Heathrow 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
PLAYCheapest$317Average$435FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search PLAY flights
KLMCheapest$327Average$665FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search KLM flights
IcelandairCheapest$369Average$609FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Icelandair flights
WOW airCheapest$410Average$625FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search WOW air flights
TAP AIR PORTUGALCheapest$429Average$660FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest$451Average$684FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Scandinavian Airlines flights
DeltaCheapest$516Average$811FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
Aer LingusCheapest$533Average$756FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Aer Lingus flights
IberiaCheapest$535Average$743FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Iberia flights

Hourly flight availability from Dulles Intl to Heathrow

See what time of day planes typically take off from Dulles Intl to Heathrow
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 Dulles Intl to Heathrow

See how many times per day planes take to the skies headed from Dulles Intl to Heathrow
Sunday27daily flights
Monday27daily flights
Tuesday27daily flights
Wednesday19daily flights
Thursday27daily flights
Friday27daily flights
Saturday27daily flights
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