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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 February or March, booked 43 days in advance, depart on a Tuesday or Monday and return on a Wednesday

$1040
$880
$710
$547
Price
$547 - $974
Temperature
48 - 73 °F
Rainfall
1 - 3 inches
Most popular in June High demand for flights, 18% potential price rise
Cheapest in February Best time to find cheap flights, 4% potential price drop
Average price $547 Price for this month
Cheapest price $547 From Washington Dulles Intl to London

Cheap flights from Washington Dulles Intl to London in February 2020

The best prices found for IAD to LGW flights for February
26 Feb - 11 Mar
$538pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Aer Lingus
 
1 STOP
IAD
Washington Dulles Intl
26 Feb - 11 Mar
$554pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LCY
London City
LCY
London City
Aer Lingus
 
1 STOP
IAD
Washington Dulles Intl
26 Feb - 11 Mar
$561pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
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
6 May - 18 May
$373pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
4 May - 19 May
$377pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
16 Sep - 22 Sep
$389pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
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
26 Feb - 11 Mar
$538pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Aer Lingus
 
1 STOP
IAD
Washington Dulles Intl
26 Feb - 11 Mar
$554pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LCY
London City
LCY
London City
Aer Lingus
 
1 STOP
IAD
Washington Dulles Intl
26 Feb - 11 Mar
$561pp
IAD
Washington Dulles Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
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
6:55 pm - 6:15 am
Lufthansa
Nonstop
7h 20m
IAD - LHR
Lufthansa
$327
StudentUniverse
1:25 pm - 1:40 am
Virgin Atlantic
Nonstop
7h 15m
IAD - LHR
Virgin Atlantic
$337
KAYAK
3:25 pm - 3:30 am
Finnair
Nonstop
7h 05m
IAD - LHR
Finnair
$345
STA Travel

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
$1.00 = £0.77
Flight duration
7h 45m
Average temperature for February in London
50.0 °F
Avg rainfall for February in London
1.5 ″

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
26 daily flights
Monday
31 daily flights
Tuesday
31 daily flights
Wednesday
26 daily flights
Thursday
26 daily flights
Friday
31 daily flights
Saturday
31 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

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.

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

2,157 seats are available from Washington Dulles Intl to London per day on average.

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 36 flights from Washington Dulles Intl to London on average per day.
Morning (6am - Noon) - 14% of flight departures
Afternoon (Noon - 6pm) - 14% of flight departures
Evening (6pm - Midnight) - 72% 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.