Cheap flights from Heathrow to Washington Dulles Intl

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Washington (IAD)
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The best prices from Heathrow to Washington Dulles Intl are usually found in November or March, booked 37 days in advance, depart on a Wednesday or Thursday and return on a Sunday

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

LHR - IAD
Price
£407 - £657
IAD
Temperature
8 - 31 °C
IAD
Rainfall
64 - 113 mm

Popular in

August

High demand for flights, 23% potential price rise

Cheapest in

November

Best time to find cheap flights, 20% potential price drop

Round-trip from

£407

From Heathrow to Washington Dulles Intl

One-way from

£248

One-way flight from Heathrow to Washington Dulles Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly return from Heathrow to Washington Dulles Intl?

Saturday flights are found to be more expensive to fly from Heathrow to Washington Dulles Intl. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington Dulles Intl.

How far in advance should I book a flight from Heathrow to Washington Dulles Intl?

To save up to 27% on this flight, we recommend booking at least 34 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Heathrow to Washington Dulles Intl from £536 1-2 weeks out and tickets from £626 for flights departing within the next 72 hours.

What is the cheapest month to fly from Heathrow to Washington Dulles Intl?

The best pricing can be found in the month of February. Prices to Washington Dulles Intl from Heathrow average £490. You can even find prices in February for less than £490, as users have found deals to Washington Dulles Intl from as low as £328. The month of July appears to be one of the more expensive times to travel to Washington Dulles Intl from Heathrow. Flying in the targeted month can save you up to 21%.

When is the cheapest time to fly from Heathrow to Washington Dulles Intl (LHR - IAD)?

A simple way to save on the total cost of your ticket is to fly from Heathrow to Washington Dulles Intl in the evening. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the morning.

Cheap flights from Heathrow to Washington Dulles Intl in January, February 2021

The best prices found for LHR to IAD flights in January, February
17 Feb - 18 Feb
£264pp
LHR
London Heathrow
United Airlines
   
2 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
LHR
London Heathrow
30 Jan - 31 Jan
£269pp
LHR
London Heathrow
United Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
   
2 STOPS
LHR
London Heathrow
30 Jan - 31 Jan
£275pp
LHR
London Heathrow
United Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
LHR
London Heathrow

Heathrow to Washington Dulles Intl 2021 flight deals

Cheap flights to Washington Dulles Intl from Heathrow found for this year
17 Feb - 18 Feb
£264pp
LHR
London Heathrow
United Airlines
   
2 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
LHR
London Heathrow
24 Mar - 25 Mar
£265pp
LHR
London Heathrow
Virgin Atlantic
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
24 Mar - 25 Mar
£266pp
LHR
London Heathrow
Virgin Atlantic
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow

Direct flights to Washington Dulles Intl from Heathrow

Save time with Heathrow to Washington Dulles Intl direct flight deals
19 Feb - 26 Feb
£312pp
LHR
London Heathrow
Virgin Atlantic
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Virgin Atlantic
Direct
LHR
London Heathrow
4 May - 18 May
£313pp
LHR
London Heathrow
Virgin Atlantic
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Virgin Atlantic
Direct
LHR
London Heathrow
1 Jun - 4 Jun
£314pp
LHR
London Heathrow
Virgin Atlantic
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Virgin Atlantic
Direct
LHR
London Heathrow

Last-minute flights from Heathrow to Washington Dulles Intl

Late deals on return flights to Washington Dulles Intl from Heathrow, departing today and this week
30 Jan - 31 Jan
£269pp
LHR
London Heathrow
United Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
   
2 STOPS
LHR
London Heathrow
30 Jan - 31 Jan
£275pp
LHR
London Heathrow
United Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
LHR
London Heathrow
30 Jan - 9 Mar
£292pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Virgin Atlantic
Direct
LHR
London Heathrow

One-way flights to Washington Dulles Intl from Heathrow

The cheapest one-way flights from Heathrow to Washington Dulles Intl
07:25 - 11:10
Virgin Atlantic
Direct
8h 45m
LHR - IAD
Virgin Atlantic
£249
Travelgenio
12:05 - 09:35
KLM
1 stop
26h 30m
LHR - IAD
KLM
01:25 - 11:30
Air France
1 stop
15h 05m
LHR - IAD
Air France

Related info for your journey

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

Flight FAQs

From Heathrow to Washington Dulles Intl

Are flight prices decreasing from Heathrow to Washington Dulles Intl due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Heathrow and Washington Dulles Intl for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from London Heathrow to Washington Dulles Intl to control the spread of COVID-19?

New policies can now be found on Delta and Alitalia to help keep travellers safe while flying. New policies for travellers booking flights from London Heathrow to Washington Dulles Intl include masks being provided and required on board, daily cleaning and sanitisation, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like Virgin Atlantic, United Airlines, and Aer Lingus flying from London Heathrow to Washington Dulles Intl have implemented new flexible cancellation policies.

Can I find flights from Heathrow to Washington Dulles Intl for under £293 on Cheapflights?

Yes, there are multiple flights from Heathrow to Washington Dulles Intl for under £293. The cheapest flight booked recently is on United Airlines for just £264, but on average you can expect to pay £283.

Are there direct flights from Heathrow to Washington Dulles Intl for under £366 on Cheapflights?

Cheapflights has 20 direct flights from Heathrow to Washington Dulles Intl under £366. A good price for a direct flight from Heathrow to Washington Dulles Intl is less than £346.

Are there last-minute flights available from Heathrow to Washington Dulles Intl for under £293?

There are currently 20+ open flights from Heathrow to Washington Dulles Intl within the next 7 days for less than £293.

Does it rain more in Heathrow or Washington Dulles Intl?

In Heathrow, there will be less rainfall in Heathrow compared to Washington Dulles Intl over the next 24 days.

Is Heathrow weather warmer or cooler than Washington Dulles Intl?

You can imagine temperatures to be in the 31 °C range in July. The weather in Washington Dulles Intl is generally hotter than Heathrow's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long does is the flight from Heathrow to Washington Dulles Intl?

A quick flight from Heathrow to Washington Dulles Intl can take about 8h 20m. Virgin Atlantic provides one of the quickest options available for as low as £314. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to flying from Heathrow to Washington Dulles Intl return?

Our cheapest airline available from Heathrow to Washington Dulles Intl is United Airlines. Our recent data shows that you can find tickets from as low as £264 on this airline. Additional options worth looking into are Virgin Atlantic and Austrian Airlines, starting at £265 and £271 round-trip. United Airlines is 48% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Heathrow to Washington Dulles Intl one-way?

To fly one-way, consider booking your trip with Virgin Atlantic, which is currently one of the cheapest options available, starting at £235. KLM flights start at £248 while deals on British Airways start at £249 one-way.

Alternative routes for Heathrow to Washington Dulles Intl

Destination information for Washington Dulles Intl

Things to know before you go. Useful info for your trip from Heathrow to Washington Dulles Intl
Today's exchange rate
£1 = $1.37
Average temperature for January in Washington Dulles Intl
8.0 °C
Avg rainfall for January in Washington Dulles Intl
78.0 mm

Airports servicing London

Airports servicing Washington

Top 10 airlines flying from Heathrow to Washington Dulles Intl

The chart below displays the airlines Cheapflights users travelling from Heathrow to Washington Dulles Intl choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
TAP AIR PORTUGAL
£420 £568 No cancel fee N/A
Search TAP AIR PORTUGAL flights
Air Canada
£394 £653 No cancel fee 67%
Search Air Canada flights
Icelandair
£491 £714 No cancel fee 76%
Search Icelandair flights
SAS
£414 £725 No cancel fee 77%
Search SAS flights
American Airlines
£477 £758 No cancel fee 71%
Search American Airlines flights
Brussels Airlines
£479 £779 No cancel fee N/A
Search Brussels Airlines flights
KLM
£480 £790 No cancel fee 75%
Search KLM flights
Finnair
£500 £815 No cancel fee 76%
Search Finnair flights
Lufthansa
£474 £867 No cancel fee 76%
Search Lufthansa flights
Delta
£458 £870 No cancel fee N/A
Search Delta flights

Hourly flight availability from Heathrow to Washington Dulles Intl

Afternoon Midday to 6 PM 100% of flight departures
Early morning Midnight to 6 AM 0% of flight departures
Morning 6 AM to midday 0% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Heathrow to Washington Dulles Intl
Sunday
0 flights
Monday
5 daily flights
Tuesday
5 daily flights
Wednesday
5 daily flights
Thursday
5 daily flights
Friday
5 daily flights
Saturday
0 flights
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