Cheap flights from Dulles Intl (IAD) to London (LON)
How to find the cheapest flight from Dulles Intl (IAD) to London (LON)
All the information you need to plan the best IAD to LON flight in 2023: compare Dulles Intl to London flight prices with the expected peak season, weather and rainfall in London.
IAD - LON Price | $646 - $906 |
|---|---|
LON Temperature | 39.2 - 62.6 °F |
LON Rainfall | 1.6 - 2.8 inches |
| Popular in | July | High demand for flights, 18% potential price rise |
|---|---|---|
| Cheapest in | February | Best time to find cheap flights, 13% potential price drop |
| Round-trip from | $646 | From Washington, D.C. Dulles Intl to London (LON) |
| One-way from | $211 | One-way flight from Washington, D.C. Dulles Intl to London (LON) |
How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to London?
Travelers have found it’s best to book a flight 61 days in advance to save up to 24% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to London 1-2 weeks in advance for as low as $852, or $965 for flights within the next 24 hours.
What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to London?
The best pricing can be found in the month of March. Prices to London from Washington, D.C. Dulles Intl Airport average $728. You can even find prices in March for less than $728, as users have found deals to London from as low as $501. The month of July appears to be one of the more expensive times to travel to London from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 23%.
When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to London (IAD - LON)?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to London as you normally would.
Cheap flights from Dulles Intl to London in January, February 2023
The best prices found for IAD to LON flights for January, February
Washington, D.C. Dulles Intl
London Heathrow
1 stop
18h 00mLondon Heathrow
Washington, D.C. Dulles Intl
1 stop
24h 55mTAP AIR PORTUGAL
Washington, D.C. Dulles Intl
London Heathrow
1 stop
23h 25mLondon Heathrow
Washington, D.C. Dulles Intl
1 stop
13h 50mScandinavian Airlines
Washington, D.C. Dulles Intl
London Gatwick
1 stop
12h 10mLondon Gatwick
Washington, D.C. Dulles Intl
1 stop
15h 25mTAP AIR PORTUGAL
Dulles Intl to London 2023 flight deals
Cheap flights to London from Dulles Intl found for this year
Washington, D.C. Dulles Intl
London Luton
1 stop
13h 15mLondon Luton
Washington, D.C. Dulles Intl
1 stop
16h 30mMultiple Airlines
Washington, D.C. Dulles Intl
London Luton
1 stop
13h 15mLondon Luton
Washington, D.C. Dulles Intl
1 stop
16h 30mMultiple Airlines
Washington, D.C. Dulles Intl
London Heathrow
1 stop
18h 00mLondon Heathrow
Washington, D.C. Dulles Intl
1 stop
24h 55mTAP AIR PORTUGAL
Cheap Virgin Atlantic flights from Dulles Intl to London
Washington, D.C. Dulles Intl
London Heathrow
1 stop
9h 25mLondon Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 20mVirgin Atlantic
Washington, D.C. Dulles Intl
London Heathrow
Nonstop
6h 55mLondon Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 20mVirgin Atlantic
Washington, D.C. Dulles Intl
London Heathrow
1 stop
9h 20mLondon Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 25mVirgin Atlantic
If you’re traveling from Washington, D.C. Dulles Intl Airport to London, one of the more common airlines traveling that route is Virgin Atlantic. Flights from Virgin Atlantic traveling this route typically cost $706.60 RT. This price is typically 65% more expensive than other airlines that offer Washington, D.C. Dulles Intl Airport to London flights. When booking this route, the cheapest RT price found was $600. The most popular departure airport in Washington, D.C. Dulles Intl Airport when flying to London is Washington, D.C. Dulles Intl Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from Washington, D.C. Dulles Intl Airport to London, Virgin Atlantic flights are 8% more popular than any other airline flying that same route.
Cheap Scandinavian Airlines flights from Dulles Intl to London
Washington, D.C. Dulles Intl
London Heathrow
1 stop
23h 25mLondon Heathrow
Washington, D.C. Dulles Intl
1 stop
13h 50mScandinavian Airlines
Washington, D.C. Dulles Intl
London Heathrow
1 stop
23h 25mLondon Heathrow
Washington, D.C. Dulles Intl
1 stop
13h 15mScandinavian Airlines
Washington, D.C. Dulles Intl
London Heathrow
2 stops
16h 20mLondon Heathrow
Washington, D.C. Dulles Intl
1 stop
13h 50mScandinavian Airlines
If you’re traveling from Washington, D.C. Dulles Intl Airport to London, one of the more common airlines traveling that route is Scandinavian Airlines. Flights from Scandinavian Airlines traveling this route typically cost $813.97 RT. This price is typically 52% more expensive than other airlines that offer Washington, D.C. Dulles Intl Airport to London flights. When booking this route, the cheapest RT price found was $518. When traveling from Washington, D.C. Dulles Intl Airport to London on Scandinavian Airlines, the most popular airport to depart from is Washington, D.C. Dulles Intl Airport and the most popular airport to arrive at is London Heathrow Airport. When flying from Washington, D.C. Dulles Intl Airport to London, Scandinavian Airlines flights are 7% more popular than any other airline flying that same route.
Non-stop flights to London from Dulles Intl
Save time with Dulles Intl to London direct flight deals
Washington, D.C. Dulles Intl
London Heathrow
Nonstop
6h 55mLondon Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 20mVirgin Atlantic
Washington, D.C. Dulles Intl
London Heathrow
Nonstop
6h 55mLondon Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 25mVirgin Atlantic
Washington, D.C. Dulles Intl
London Heathrow
Nonstop
6h 55mLondon Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 25mVirgin Atlantic
Last minute flights from Dulles Intl to London
Late deals on return flights to London from Dulles Intl, departing today and this week
Washington, D.C. Dulles Intl
London Heathrow
1 stop
23h 25mLondon Heathrow
Washington, D.C. Dulles Intl
1 stop
13h 50mScandinavian Airlines
Washington, D.C. Dulles Intl
London Stansted
2 stops
17h 50mLondon Stansted
Washington, D.C. Dulles Intl
2 stops
20h 50mMultiple Airlines
Washington, D.C. Dulles Intl
London Stansted
2 stops
23h 35mLondon Stansted
Washington, D.C. Dulles Intl
2 stops
19h 25mMultiple Airlines
One-way flights to London from Dulles Intl
The cheapest one-way flights from Dulles Intl to London
Washington, D.C. Dulles Intl
London Heathrow
1 stop
18h 00mTAP AIR PORTUGAL
Washington, D.C. Dulles Intl
London Gatwick
1 stop
12h 10mTAP AIR PORTUGAL
Washington, D.C. Dulles Intl
London Heathrow
1 stop
13h 55mTAP AIR PORTUGAL
Reviews of Airlines Servicing London
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
McNamara Terminal for departures is absolutely amazing. The bathrooms are all clean and very modern. We were walking to our gate and there was somebody playing on a grand piano while people were sitting in their chairs waiting for the flights are OK. Multiple restaurants of good quality to dying or drink before your flight. The flight attendants were very polite and nice.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
McNamara Terminal for departures is absolutely amazing. The bathrooms are all clean and very modern. We were walking to our gate and there was somebody playing on a grand piano while people were sitting in their chairs waiting for the flights are OK. Multiple restaurants of good quality to dying or drink before your flight. The flight attendants were very polite and nice.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
McNamara Terminal for departures is absolutely amazing. The bathrooms are all clean and very modern. We were walking to our gate and there was somebody playing on a grand piano while people were sitting in their chairs waiting for the flights are OK. Multiple restaurants of good quality to dying or drink before your flight. The flight attendants were very polite and nice.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
McNamara Terminal for departures is absolutely amazing. The bathrooms are all clean and very modern. We were walking to our gate and there was somebody playing on a grand piano while people were sitting in their chairs waiting for the flights are OK. Multiple restaurants of good quality to dying or drink before your flight. The flight attendants were very polite and nice.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
McNamara Terminal for departures is absolutely amazing. The bathrooms are all clean and very modern. We were walking to our gate and there was somebody playing on a grand piano while people were sitting in their chairs waiting for the flights are OK. Multiple restaurants of good quality to dying or drink before your flight. The flight attendants were very polite and nice.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
McNamara Terminal for departures is absolutely amazing. The bathrooms are all clean and very modern. We were walking to our gate and there was somebody playing on a grand piano while people were sitting in their chairs waiting for the flights are OK. Multiple restaurants of good quality to dying or drink before your flight. The flight attendants were very polite and nice.
Related info for your journey
Useful info, stats and facts about Dulles Intl to London flights.
Which airlines flying from Washington, D.C. Dulles Intl to London have flexible cancellations due to COVID-19?
Some of the carriers operating flights from Washington, D.C. Dulles Intl to London that may be offering flexible cancellation policies are United Airlines, British Airways, and Virgin Atlantic. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.
Can I find flights from Washington, D.C. Dulles Intl Airport to London for under $400 on Cheapflights?
Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to London for under $400. The cheapest flight booked recently is on Multiple Airlines for just $364, but on average you can expect to pay $407.
Are there nonstop flights from Washington, D.C. Dulles Intl Airport to London for under $500 on Cheapflights?
Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to London under $500. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to London is less than $537.
Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to London for under $500?
There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to London within the next 7 days for less than $500.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to London round-trip?
According to our current data, TAP AIR PORTUGAL ($383), PLAY ($409), and Scandinavian Airlines ($420) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to London. TAP AIR PORTUGAL is priced at 48% lower than the current average price of a flight leaving 3 months from now.
What are the most popular routes from Washington, D.C. Dulles Intl Airport to London?
When deciding which route to take from Washington, D.C. Dulles Intl Airport to London consider Washington, D.C. Dulles Intl - London Heathrow, Washington, D.C. Dulles Intl - London Gatwick or Washington, D.C. Dulles Intl - London City as they are the most popular.
What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to London?
The most popular airlines flying from Washington, D.C. Dulles Intl Airport to London are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to London?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to London on time: KLM (75%), Delta (75%), Virgin Atlantic (75%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to London?
While on average a flight from Washington, D.C. Dulles Intl Airport to London is generally $2,523, our data shows the cheapest flight currently is $367. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay $420 for that flight.
Other flights from Dulles Intl
Alternative routes for Dulles Intl to London
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Dulles Intl to London
The chart below displays the airlines Cheapflights users traveling from Dulles Intl to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from Dulles Intl to London
See what time of day planes typically take off from Dulles Intl to London
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 0%of flight departures | Morning6 am to noon |
| 41%of flight departures | AfternoonNoon to 6 pm |
| 58%of flight departures | Evening6 pm to midnight |
Weekly flight availability from Dulles Intl to London
See how many times per day planes take to the skies headed from Dulles Intl to London
| Sunday | 22daily flights |
|---|---|
| Monday | 22daily flights |
| Tuesday | 22daily flights |
| Wednesday | 22daily flights |
| Thursday | 22daily flights |
| Friday | 22daily flights |
| Saturday | 16daily flights |