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

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The best prices from Washington Dulles Intl to London are usually found in April or May, booked 50 days in advance, depart on a Tuesday or Monday and return on a Wednesday

IAD - LON
Price
$582 - $974
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches
Popular in June High demand for flights, 28% potential price rise
Cheapest in April Best time to find cheap flights, 18% potential price drop
Average price $582 Average for round-trip flights in April 2020
Round-trip from $582 From Washington Dulles Intl to London

Cheap flights from Washington Dulles Intl to London in April 2020

The best prices found for IAD to LGW flights for April
22 Apr - 30 Apr
$461pp
IAD
Washington Dulles Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
IAD
Washington Dulles Intl
22 Apr - 30 Apr
$466pp
IAD
Washington Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington Dulles Intl
28 Apr - 5 May
$467pp
IAD
Washington Dulles Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
IAD
Washington Dulles Intl

Washington Dulles Intl to London 2020 flight deals

Cheap flights to London from Washington Dulles Intl found for this year
27 May - 3 Jun
$347pp
IAD
Washington Dulles Intl
SAS
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
SAS
 
1 STOP
IAD
Washington Dulles Intl
21 Sep - 14 Oct
$395pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
20 Sep - 14 Oct
$397pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl

Last minute flights from Washington Dulles Intl to London

Late deals on round-trip flights to London from Washington Dulles Intl, departing today and this week
9 Apr - 13 Apr
$569pp
IAD
Washington Dulles Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
IAD
Washington Dulles Intl
8 Apr - 29 Apr
$570pp
IAD
Washington Dulles Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
IAD
Washington Dulles Intl
8 Apr - 22 Apr
$591pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl

One-way flights to London from Washington Dulles Intl

The cheapest one-way flights from Washington Dulles Intl to London
2:10 pm - 2:35 am
Virgin Atlantic
Nonstop
7h 25m
IAD - LHR
Virgin Atlantic
$398
Kiwi.com
2:10 pm - 2:35 am
KLM
Nonstop
7h 25m
IAD - LHR
KLM
2:10 pm - 2:35 am
Singapore Airlines
Nonstop
7h 25m
IAD - LHR
Singapore Airlines
$425
Fareboom

Alternative routes for Washington Dulles Intl to London

Destination information for London

Things to know before you go. Useful info for your trip from Washington Dulles Intl to London
Today's exchange rate
$1 = £0.81
Average temperature for April in London
59.0 °F
Avg rainfall for April in London
1.7 ″

Airports servicing Washington

Airports servicing London

Stansted (STN)
City (LCY)
Gatwick (LGW)
Heathrow (LHR)
Luton (LTN)
Weekly flight availability
from Washington Dulles Intl to London
Sunday
28 daily flights
Monday
26 daily flights
Tuesday
28 daily flights
Wednesday
28 daily flights
Thursday
28 daily flights
Friday
28 daily flights
Saturday
28 daily flights

Related info for your journey

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

Flight FAQs

From Washington Dulles Intl to London

Are flight prices decreasing from Washington Dulles Intl to London 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 Washington Dulles Intl and London 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.

Can I find flights from Washington Dulles Intl to London for under $500 on Cheapflights?

Yes, there are multiple flights from Washington Dulles Intl to London for under $500. The cheapest flight booked recently is on Icelandair for just $461, but on average you can expect to pay $464.

Are there nonstop flights from Washington Dulles Intl to London for under $500 on Cheapflights?

There are no nonstop flights from Washington Dulles Intl to London, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Washington Dulles Intl to London for under $500?

There are currently just 3 open flights from Washington Dulles Intl to London within the next 7 days for less than $500.

What percent of flights are delayed?

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

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for United Air Lines Inc., as currently they have the cheapest options available from Washington Dulles Intl to London. On average you can find 78 flights for this flight path daily.

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

A nonstop flight takes up to 8 hours, covering a distance of 2,291 miles.

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

Travelers can expect 34 flights from Washington Dulles Intl to London on average per day.
Morning (6am - Noon) - 15% of flight departures
Evening (6pm - Midnight) - 85% of flight departures

Is Washington Dulles Intl weather warmer or cooler than London?

We forecast the temperature to be around the 88 °F's in July, on average. The temperature in London is generally colder than in Washington Dulles Intl. Book flights in a timely manner in correlation to your departure date.