Cheap flights from Heathrow to Dulles Intl

Return
Economy
London (LHR)
Washington, D.C. (IAD)
Depart
Return
Any month
Compare vs Cheapflights |

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

All the information you need to plan the best LHR to IAD flight in 2022: compare Heathrow to Dulles Intl flight prices with the expected peak season, weather and rainfall in Dulles Intl.
LHR - IAD
Price
£556 - £898
IAD
Temperature
2 - 27 °C
IAD
Rainfall
66 - 102 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

£445

From London Heathrow to Washington, D.C. Dulles Intl

One-way from

£353

One-way flight from London Heathrow to Washington, D.C. Dulles Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from London Heathrow Airport to Washington, D.C. Dulles Intl Airport (LHR - IAD)?

When flying from London Heathrow Airport to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The best pricing can be found in the month of February. Prices to Washington, D.C. Dulles Intl Airport from London Heathrow Airport average £536. You can even find prices in February for less than £536, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as £359. The month of July appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from London Heathrow Airport. Flying in the targeted month can save you up to 21%.

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

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 London Heathrow Airport to Washington, D.C. Dulles Intl Airport from £586 1-2 weeks out and tickets from £684 for flights departing within the next 72 hours.

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

The best prices found for LHR to IAD flights in May, June
21 Jun - 27 Jun
£459pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
21 Jun - 7 Jul
£460pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
14 Jun - 28 Jun
£469pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow

London Heathrow to Dulles Intl 2022 flight deals

Cheap flights to Dulles Intl from Heathrow found for this year
12 Oct - 29 Nov
£394pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
27 Sep - 5 Oct
£401pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
6 Sep - 13 Sep
£407pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow

Direct flights to Dulles Intl from Heathrow

Save time with Heathrow to Dulles Intl direct flight deals
7 Nov - 15 Nov
£566pp
LHR
London Heathrow
Austrian Airlines
Direct
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Austrian Airlines
Direct
LHR
London Heathrow
2 Nov - 6 Nov
£567pp
LHR
London Heathrow
British Airways
Direct
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
British Airways
Direct
LHR
London Heathrow
9 Nov - 13 Nov
£577pp
LHR
London Heathrow
British Airways
Direct
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
British Airways
Direct
LHR
London Heathrow

Last-minute flights from Heathrow to Dulles Intl

Late deals on return flights to Dulles Intl from Heathrow, departing today and this week
31 May - 20 Jun
£486pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
31 May - 20 Jun
£487pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
30 May - 20 Jun
£503pp
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington, D.C. Dulles Intl
IAD
Washington, D.C. Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow

One-way flights to Dulles Intl from London Heathrow

The cheapest one-way flights from Heathrow to Dulles Intl
13:00 - 11:00
Scandinavian Airlines
1 stop
27h 00m
LHR - IAD
Scandinavian Airlines
£353
ScholarTrip
09:10 - 15:10
Icelandair
1 stop
11h 00m
LHR - IAD
Icelandair
£364
StudentUniverse
07:20 - 16:30
TAP AIR PORTUGAL
1 stop
14h 10m
LHR - IAD
TAP AIR PORTUGAL
£372
Travelgenio

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Dulles Intl</span> flights.

Flight FAQs

From Heathrow to Dulles Intl

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

British Airways, Virgin Atlantic, and Lufthansa 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 London Heathrow Airport to Washington, D.C. Dulles Intl Airport for under £400 on Cheapflights?

Yes, there are multiple flights from London Heathrow Airport to Washington, D.C. Dulles Intl Airport for under £400. The cheapest flight booked recently is on Icelandair for just £394, but on average you can expect to pay £420.

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

Cheapflights has at least 20 direct flights from London Heathrow Airport to Washington, D.C. Dulles Intl Airport under £600. A good price for a nonstop flight from London Heathrow Airport to Washington, D.C. Dulles Intl Airport is less than £593.

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

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

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

Currently priced at £394, Icelandair will fly you from London Heathrow Airport to Washington, D.C. Dulles Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as £428. Icelandair is currently priced 29% below the average price you’ll pay for this route.

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

One-way options have recently been found by users for as low as £353 on Scandinavian Airlines. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £361 and Icelandair from £364 one-way.

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

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

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

Consider Air Canada (91%), Austrian Airlines (91%) or United Airlines (91%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Washington, D.C. Dulles Intl Airport.

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

On average you can expect to pay £2,075 for a flight from London Heathrow Airport to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is £221 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at £394.

Related searches

Flights to Dulles Intl from Heathrow
Flights to Heathrow Flights to Dulles Intl Flights from Heathrow

Hire a Car

Car Rentals at Dulles Intl Car Rentals in USA

COVID Restrictions

View COVID Travel Restrictions for Dulles Intl (IAD)

Do I need a COVID test to fly to Dulles Intl from Heathrow?

Information is based on travel restrictions from London Heathrow to Washington, D.C. Dulles Intl

Most visitors from London Heathrow need to provide a negative COVID-19 test result and/or quarantine to enter Washington, D.C. Dulles Intl.

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Washington, D.C. Dulles Intl.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Washington, D.C. Dulles Intl.

Do I need a test to fly back to Heathrow from Dulles Intl?

Returning to London Heathrow from Washington, D.C. Dulles Intl

COVID-19 testing requirements
Visitors from Washington, D.C. Dulles Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering London Heathrow.

Quarantine requirements
Visitors from Washington, D.C. Dulles Intl are not required to quarantine after entering London Heathrow.

Hide COVID Travel Restrictions for Dulles Intl (IAD)

Alternative routes for Heathrow to Dulles Intl

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

Destination information for Dulles Intl

Things to know before you go - useful duration and weather info for your trip from Heathrow to Dulles Intl.
Today's exchange rate
£1 = $1.25
Average temperature for May in Dulles Intl
25.0 °C
Avg rainfall for May in Dulles Intl
111.0 mm

Airports servicing London

Airports servicing Washington, D.C.

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

The chart below displays the airlines Cheapflights users travelling from Heathrow to 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
Air France
£298 £663 No cancel fee 77%
Search Air France flights
TAP AIR PORTUGAL
£306 £446 No cancel fee N/A
Search TAP AIR PORTUGAL flights
Icelandair
£372 £531 No cancel fee 76%
Search Icelandair flights
Aer Lingus
£412 £516 No cancel fee N/A
Search Aer Lingus flights
Scandinavian Airlines
£432 £523 No cancel fee 77%
Search Scandinavian Airlines flights
KLM
£463 £721 No cancel fee 75%
Search KLM flights
Iberia
£482 £667 No cancel fee 77%
Search Iberia flights
United Airlines
£484 £684 No cancel fee 69%
Search United Airlines flights
Virgin Atlantic
£484 £612 No cancel fee 72%
Search Virgin Atlantic flights
Air Canada
£490 £558 No cancel fee 67%
Search Air Canada flights

Hourly flight availability from Heathrow to Dulles Intl

See what time of day planes typically take off from Heathrow towards Dulles Intl.
Morning 6 AM to midday 83% of flight departures
Afternoon Midday to 6 PM 16% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Heathrow to Dulles Intl
See how many times per day planes take to the skies headed from Heathrow to Dulles Intl.
Sunday
25 daily flights
Monday
22 daily flights
Tuesday
27 daily flights
Wednesday
26 daily flights
Thursday
24 daily flights
Friday
22 daily flights
Saturday
27 daily flights
Home North America USA Washington, D.C. Dulles Intl Cheap flights from Heathrow to Dulles Intl
  • Return
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First