Menu

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

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Washington Dulles Intl to Heathrow are usually found in February or January, booked 53 days in advance, depart on a Monday or Tuesday and return on a Wednesday

$1091
$918
$746
$574
Price
$574 - $1038
Temperature
46 - 75 °F
Rainfall
2 - 3 inches
Most popular in June High demand for flights, 21% potential price rise
Cheapest in February Best time to find cheap flights, 5% potential price drop
Average price $636 Price for this month
Cheapest price $574 From Washington Dulles Intl to Heathrow

Last minute flights from Washington Dulles Intl to Heathrow

Late deals on round-trip flights to Heathrow from Washington Dulles Intl, departing today and this week
16 Nov - 19 Nov
$579pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
IAD
Washington Dulles Intl
19 Nov - 27 Nov
$592pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
IAD
Washington Dulles Intl
18 Nov - 10 Dec
$621pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
IAD
Washington Dulles Intl

Alternative routes for Washington Dulles Intl to Heathrow

Destination information for Heathrow

Things to know before you go. Useful info for your trip from Washington Dulles Intl to Heathrow
Today's exchange rate
$1.00 = £0.78
Flight duration
7h 44m
Average temperature for November in Heathrow
51.8 °F
Avg rainfall for November in Heathrow
2.4 ″

Airports servicing Washington

Airports servicing London

Weekly flight availability
from Washington Dulles Intl to Heathrow
Sunday
24 daily flights
Monday
29 daily flights
Tuesday
29 daily flights
Wednesday
29 daily flights
Thursday
29 daily flights
Friday
29 daily flights
Saturday
29 daily flights

Related info for your journey

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

Flight FAQs

From Washington Dulles Intl to Heathrow

What percent of flights are delayed?

Based on our current data flights from Washington Dulles Intl to Heathrow are usually delayed by up to 39min. or more.

How many passenger seats are available on a flight on this route?

On average, there are a total of 2,157 seats offered from Washington Dulles Intl to London Heathrow per day.

What is the cheapest airline for this route?

While looking for the best option consider United Air Lines Inc., our data currently shows that they have the cheapest flight available for the flight path. When traveling from Washington Dulles Intl to Heathrow, generally 78 flights depart for this route daily.

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

You can expect a flight time of up to 8 hours for nonstop. Airlines will travel a distance of up to 2,291 miles.

How many flights depart from Washington Dulles Intl to Heathrow on average per day?

Travelers can expect 39 flights from Washington Dulles Intl to London Heathrow on average per day.
Morning (6am - Noon) - 13% of flight departures
Afternoon (Noon - 6pm) - 13% of flight departures
Evening (6pm - Midnight) - 74% of flight departures

Does it rain more in Washington Dulles Intl or Heathrow?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Washington Dulles Intl is typically greater than that of Heathrow. We can gather that this will continue over the next 14 days.

Is Washington Dulles Intl weather warmer or cooler than Heathrow?

Temperatures around the 88 °F's can be experienced in July. The weather in Heathrow is colder than in Washington Dulles Intl. Plan for potential changes in flight availability as peak weather approaches in this location.