Cheap flights from Washington, D.C. (WAS) to London (LON) from $169

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight to London departing on 3/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
WAS — LON
Mar 5 — Mar 121

The best prices from Washington, D.C. to London are usually found in February or January, booked 59 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Washington, D.C. to London

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 29, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$644

One-way from

$175
High demand for flights, 25% potential price rise
Best time to find cheap flights, 15% potential price drop
From Washington, D.C. (WAS) to London (LON)
One-way flight from Washington, D.C. (WAS) to London (LON)

What is the cheapest day to fly round-trip from Washington, D.C. to London?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Travelers have found it’s best to book a flight 60 days in advance to save up to 21% 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 60 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. to London 1-2 weeks in advance for as low as $734, or $863 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. to London?

Our data shows that February tends to be the cheapest month to fly to London from Washington, D.C.. Users have commonly found prices around $691 for the month, but tickets can be as low as $370. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Washington, D.C. to London (WAS - LON)?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to London in the afternoon. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the morning.

Cheap Scandinavian Airlines flights from Washington, D.C. to London

Explore cheap flight options specifically provided by Scandinavian Airlines for the route between Washington, D.C. and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Find some of the cheapest Scandinavian Airlines flights traveling from Washington, D.C. to London. It's recommended that users confirm their flight details before booking.
Tue 3/126:15 pmIAD - LHR
1 stop17h 45mScandinavian Airlines
Tue 1/148:30 pmLHR - IAD
1 stop27h 10mScandinavian Airlines
Deal found 2/27$487
Wed 4/245:15 pmIAD - LHR
1 stop17h 45mScandinavian Airlines
Mon 5/68:30 pmLHR - IAD
1 stop23h 55mScandinavian Airlines
Deal found 2/29$497
Mon 4/15:15 pmIAD - LHR
1 stop23h 25mScandinavian Airlines
Thu 4/118:30 pmLHR - IAD
1 stop23h 55mScandinavian Airlines
Deal found 2/28$504
Tue 3/55:15 pmIAD - LHR
2 stops23h 20mScandinavian Airlines
Mon 3/116:40 pmLHR - IAD
1 stop26h 05mScandinavian Airlines
Deal found 2/27$582
Tue 3/55:15 pmIAD - LHR
2 stops16h 20mScandinavian Airlines
Thu 3/146:40 amLHR - IAD
1 stop14h 05mScandinavian Airlines
Deal found 2/28$584
Tue 3/55:15 pmIAD - LHR
2 stops16h 20mScandinavian Airlines
Mon 3/118:30 pmLHR - IAD
1 stop24h 15mScandinavian Airlines
Deal found 2/29$586
  • If you’re traveling from Washington, D.C. to London, one of the more common airlines traveling that route is Scandinavian Airlines. Flights from Scandinavian Airlines traveling this route typically cost $723.79 RT. This price is typically 67% more expensive than other airlines that offer Washington, D.C. to London flights. When booking this route, the cheapest RT price found was $585. When traveling from Washington, D.C. 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. to London, Scandinavian Airlines flights are 8% more popular than any other airline flying that same route.

Cheap Aer Lingus flights from Washington, D.C. to London

Explore cheap flight options specifically provided by Aer Lingus for the route between Washington, D.C. and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Browse through some of the cheapest Aer Lingus flights traveling from Washington, D.C. to London. Make sure to examine the flight information before completing your reservation.
Mon 4/88:40 pmIAD - LHR
1 stop9h 30mAer Lingus
Tue 4/301:25 pmLHR - IAD
1 stop10h 45mAer Lingus
Deal found 2/27$500
Fri 5/38:40 pmIAD - LHR
1 stop11h 45mAer Lingus
Tue 5/71:25 pmLHR - IAD
1 stop10h 45mAer Lingus
Deal found 2/27$501
Fri 4/58:40 pmIAD - LHR
1 stop11h 45mAer Lingus
Thu 4/111:25 pmLHR - IAD
1 stop10h 45mAer Lingus
Deal found 2/28$502
Tue 3/55:00 pmIAD - LGW
1 stop9h 55mAer Lingus
Thu 3/148:35 amLGW - IAD
1 stop11h 55mAer Lingus
Deal found 2/28$870
  • Aer Lingus is one of the most popular airlines used for those traveling from Washington, D.C. to London. Flights on this route from Aer Lingus typically cost $758.39 RT, a price that is 66% more expensive than the average Washington, D.C. to London flight. The cheapest flight found was $410 RT. When traveling from Washington, D.C. to London on Aer Lingus, 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. to London, Aer Lingus flights are 4% more popular than any other airline flying that same route.

Cheap Washington, D.C. to London flights in February & March 2024

Find cheap flight options from Washington, D.C. to London specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,314,962 searches. Prices were last updated on February 29, 2024.
Check out some of the best flight deals from Washington, D.C. to London in 2024. More deals are always being added, so be sure to check back regularly.
Mon 3/117:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 3/1910:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$398
Mon 3/117:05 pmBWI - STN
1 stop10h 50mPLAY
Sat 1/1110:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/27$399
Mon 3/117:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 3/1910:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/29$400
Wed 3/137:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 3/1910:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$404
Tue 3/127:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 3/1910:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/29$407
Tue 3/127:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 1/1410:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$425
Mon 3/45:15 pmIAD - LHR
1 stop17h 45mScandinavian Airlines
Thu 3/146:40 amLHR - IAD
1 stop14h 05mScandinavian Airlines
Deal found 2/28$451
Mon 3/117:05 pmBWI - STN
1 stop10h 50mPLAY
Thu 3/1410:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/27$454
Wed 3/137:05 pmBWI - STN
1 stop10h 50mPLAY
Wed 3/2010:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$455

Washington, D.C. to London 2024 flight deals

Discover exclusive flight deals for travel between Washington, D.C. and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Check out some of the best flight deals from Washington, D.C. to London in 2024. More deals are always being added, so be sure to check back regularly.
Wed 9/116:50 pmIAD - STN
1 stop10h 40mPLAY
Wed 9/2511:35 amSTN - IAD
1 stop11h 05mPLAY
Deal found 2/28$335
Mon 4/86:50 pmIAD - STN
1 stop10h 40mPLAY
Sat 4/1311:35 amSTN - IAD
1 stop11h 05mPLAY
Deal found 2/28$355
Mon 4/86:50 pmBWI - STN
1 stop10h 40mPLAY
Sat 4/1311:35 amSTN - BWI
1 stop11h 05mPLAY
Deal found 2/28$355
Mon 4/86:50 pmIAD - STN
1 stop10h 40mPLAY
Sat 4/1311:35 amSTN - IAD
1 stop11h 05mPLAY
Deal found 2/28$359
Mon 4/86:50 pmBWI - STN
1 stop10h 40mPLAY
Sat 4/1311:35 amSTN - BWI
1 stop11h 05mPLAY
Deal found 2/28$359
Mon 4/86:50 pmBWI - STN
1 stop10h 40mPLAY
Sun 4/1411:35 amSTN - BWI
1 stop11h 05mPLAY
Deal found 2/27$360
Wed 12/46:05 pmIAD - STN
1 stop10h 50mPLAY
Mon 12/910:55 amSTN - IAD
1 stop11h 00mPLAY
Deal found 2/29$362
Mon 4/86:50 pmBWI - STN
1 stop10h 40mPLAY
Sun 4/1411:35 amSTN - BWI
1 stop11h 05mPLAY
Deal found 2/28$362
Mon 4/86:50 pmIAD - STN
1 stop10h 40mPLAY
Thu 4/1111:35 amSTN - IAD
1 stop11h 05mPLAY
Deal found 2/28$363

Non-stop flights to London from Washington, D.C.

Discover non-stop flight options from Washington, D.C. to London. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
To help reduce your travel time, choose from one of these non-stop flights from Washington, D.C. to London. Users seeking other options on flights from Washington, D.C. to London should update the search form at the top of the page.
Mon 3/119:40 pmBWI - LHR
Nonstop6h 55mBritish Airways
Wed 3/203:25 pmLHR - BWI
Nonstop8h 30mBritish Airways
Deal found 2/28$586
Mon 3/119:40 pmBWI - LHR
Nonstop6h 55mBritish Airways
Wed 1/153:25 pmLHR - BWI
Nonstop8h 30mBritish Airways
Deal found 2/28$587
Wed 4/1710:45 pmIAD - LHR
Nonstop7h 20mBritish Airways
Wed 4/245:25 pmLHR - IAD
Nonstop8h 05mBritish Airways
Deal found 2/28$587
Wed 4/249:15 pmBWI - LHR
Nonstop7h 15mBritish Airways
Thu 5/164:30 pmLHR - BWI
Nonstop7h 50mBritish Airways
Deal found 2/28$588
Sun 4/285:55 pmIAD - LHR
Nonstop7h 20mBritish Airways
Thu 5/165:25 pmLHR - IAD
Nonstop8h 05mBritish Airways
Deal found 2/28$588
Mon 3/1811:15 pmIAD - LHR
Nonstop7h 10mAustrian Airlines
Tue 3/2612:05 pmLHR - IAD
Nonstop8h 35mAustrian Airlines
Deal found 2/28$606
Wed 4/109:15 pmBWI - LHR
Nonstop7h 15mBritish Airways
Wed 4/174:30 pmLHR - BWI
Nonstop7h 50mBritish Airways
Deal found 2/28$609
Wed 4/1010:45 pmIAD - LHR
Nonstop7h 20mBritish Airways
Fri 4/195:25 pmLHR - IAD
Nonstop8h 05mBritish Airways
Deal found 2/28$609
Mon 4/1510:45 pmIAD - LHR
Nonstop7h 20mBritish Airways
Fri 4/265:25 pmLHR - IAD
Nonstop8h 05mBritish Airways
Deal found 2/28$612

Washington, D.C. to London flights leaving soon

Find last-minute flight options from Washington, D.C. to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Users seeking a last-minute flight from Washington, D.C. to London should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.
Mon 3/117:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 3/1910:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$398
Mon 3/117:05 pmBWI - STN
1 stop10h 50mPLAY
Sat 1/1110:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/27$399
Wed 3/137:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 3/1910:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$404
Tue 3/127:05 pmBWI - STN
1 stop10h 50mPLAY
Tue 1/1410:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$425
Mon 3/117:05 pmBWI - STN
1 stop10h 50mPLAY
Thu 3/1410:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/27$454
Wed 3/137:05 pmBWI - STN
1 stop10h 50mPLAY
Wed 3/2010:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$455
Wed 3/137:05 pmBWI - STN
1 stop10h 50mPLAY
Wed 3/2010:55 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/28$457
Mon 3/117:05 pmIAD - STN
1 stop10h 50mPLAY
Thu 3/1410:55 amSTN - IAD
1 stop11h 00mPLAY
Deal found 2/27$473
Mon 3/46:05 pmBWI - STN
1 stop10h 50mMultiple Airlines
Mon 3/119:45 pmSTN - BWI
2 stops48h 10mMultiple Airlines
Deal found 2/28$484

One-way flights to London from Washington, D.C.

Search for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Take a look at some of the one-way flights we've detected from Washington, D.C. to London. Users can also find round-trip Washington, D.C. to London flights by using the search form above.
Wed 3/209:32 amBWI - LGW
2 stops20h 28mMultiple Airlines
Deal found 2/28$169
Mon 3/1810:40 amBWI - LGW
1 stop19h 20mMultiple Airlines
Deal found 2/28$175
Tue 3/196:20 amBWI - LGW
1 stop23h 40mMultiple Airlines
Deal found 2/29$176
Wed 3/276:45 amBWI - LGW
2 stops23h 15mMultiple Airlines
Deal found 2/28$186
Tue 3/196:45 amBWI - LGW
2 stops23h 15mMultiple Airlines
Deal found 2/29$187
Tue 3/266:26 amBWI - LGW
2 stops23h 34mMultiple Airlines
Deal found 2/28$188
Wed 4/178:30 pmBWI - LGW
1 stop29h 30mMultiple Airlines
Deal found 2/28$189
Sat 3/167:15 pmBWI - LGW
1 stop34h 45mMultiple Airlines
Deal found 2/28$192
Wed 4/36:26 amBWI - LGW
2 stops23h 34mMultiple Airlines
Deal found 2/29$193

Find flights from Washington, D.C. to London within your budget

Customize your flight search to find flights from Washington, D.C. to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$355 - $605

Route

Depart

Return

Price

Baltimore/WashingtonLondon Stansted

BWI - STN

BWISTN

Baltimore/Washington

Mon 4/8

1 stop10h 40m

London Stansted

Sat 4/13

1 stop11h 05m

$355

Baltimore/WashingtonLondon Gatwick

BWI - LGW

BWILGW

Baltimore/Washington

Sun 4/21

2 stops31h 45m

London Gatwick

Sat 4/27

1 stop16h 00m

$443

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 3/12

1 stop17h 45m

London Heathrow

Tue 1/14

1 stop27h 10m

$487

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 4/8

1 stop9h 30m

London Heathrow

Tue 4/30

1 stop10h 45m

$500

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 3/12

1 stop18h 50m

London Heathrow

Tue 3/19

1 stop26h 40m

$510

Baltimore/WashingtonLondon Heathrow

BWI - LHR

BWILHR

Baltimore/Washington

Mon 3/11

Nonstop6h 55m

London Heathrow

Wed 3/20

Nonstop8h 30m

$586

Washington, D.C. Dulles IntlLondon Gatwick

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 3/12

1 stop11h 20m

London Gatwick

Wed 1/15

1 stop15h 25m

$588

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 3/13

Nonstop7h 10m

London Heathrow

Wed 3/20

1 stop12h 50m

$601

Washington, D.C. Reagan-NationalLondon Gatwick

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 5/1

1 stop10h 10m

London Gatwick

Tue 5/7

1 stop13h 19m

$605

Flights are sorted by cheapest first

Deals found on 2/28

When is the best time to book a flight from Washington, D.C. to London?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to London. Price data was last updated on January 28, 2024.
The best time to book flights from Washington, D.C. to London is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Washington, D.C. to London?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to London. Price data was last updated on February 25, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Washington, D.C. to London flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to London by month

Plan your trip from Washington, D.C. to London by taking into account the cheapest months to travel. The average price of a one-way flight from Washington, D.C. to London is currently $184 while a round-trip flight costs $519. Price data was last updated on February 25, 2024.

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to London (average of $652). Flying from Washington, D.C. to London in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$675

February

$665

March

$713

April

$735

May

$770

June

$1,189

July

$1,016

August

$799

September

$751

October

$716

November

$652

December

$676

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated February 29, 2024.
Get a feel of what it's like to fly with Scandinavian Airlines, Aer Lingus and British Airways from Washington, D.C. to London by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
11,818 reviews

Entertainment

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Comfort

7.9

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very good
11,818 reviews
8.1
Very good
11,818 reviews

Entertainment

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Comfort

7.9

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
2,258 reviews
8.1
Very good
11,818 reviews

Entertainment

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Comfort

7.9

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
1,766 reviews
8.1
Very good
11,818 reviews

Entertainment

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Comfort

7.9

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

7.7
Good
5,180 reviews
8.1
Very good
11,818 reviews

Entertainment

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Comfort

7.9

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

7.7
Good
1,376 reviews
8.1
Very good
11,818 reviews

Entertainment

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Comfort

7.9

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find flights from Washington, D.C. to London for under $400 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. to London for under $400. The cheapest flight booked recently is on PLAY for just $355, but on average you can expect to pay $374.

Are there nonstop flights from Washington, D.C. to London for under $600 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. to London under $600. A good price for a nonstop flight from Washington, D.C. to London is less than $610.

Are there last-minute flights available from Washington, D.C. to London for under $400?

There are currently 20+ open flights from Washington, D.C. to London within the next 7 days for less than $400.

What days are nonstop flights available from Washington, D.C. to London?

Nonstop flights are available for this route on the following days: Monday.

How many flights depart from Washington, D.C. to London on average per day?

On average, you can expect to see 4 flights from Washington, D.C. to London a day.
Evening (6pm - Midnight) - 100% of flight departures

How long is the flight from Washington, D.C. to London?

There are many flights that can get you from Washington, D.C. to London in 10h 40m. Fly via PLAY to get the fastest option. Washington, D.C. and London are separated by a distance of 3687 mi.

What is the cheapest airline to fly from Washington, D.C. to London round-trip?

Flying on PLAY is currently your cheapest option to London, with prices starting at $355. PLAY is 48% cheaper than the average price of flights available within the next 90 days to this destination.

What are the most popular routes from Washington, D.C. to London?

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

What are the most reliable airlines from Washington, D.C. to London?

The top 3 most reliable airlines when flying from Washington, D.C. to London are Air Canada (81%), Austrian Airlines (81%) and Copa Airlines (81%).

What are the cheapest flights from Washington, D.C. to London?

While on average a flight from Washington, D.C. to London is generally $2,436, our data shows the cheapest flight currently is $442. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay $451 for that flight.

What does IAD to LHR mean?

IAD stands for Washington, D.C. Dulles Intl Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are some additional IATA codes for airports related to your trip.

Where are the most common layover locations when flying from Washington, D.C. to London?

What are some popular things to do or see while on a layover in Reykjavik?

The majority of Reykjavik visitors spend their time at Hallgrímskirkja, Harpa, and Perlan. Those on a layover in Reykjavik interested in visiting Hallgrímskirkja, Harpa, or Perlan can do so by traveling 23.2 mi, 23.3 mi, and 23.0 mi, respectively from Reykjavik Keflavik Intl. Travelers can book a car rental at Reykjavik Keflavik Intl for about $60 per day to make their sightseeing more efficient.

What are some popular points of interest to see during a layover in Dublin?

St. Patrick's Cathedral, Dublin Castle, and Merrion Square are the most popular attractions in Dublin if you're in need of something to do during your layover. Travelers on a layover in Dublin can visit St. Patrick's Cathedral, Dublin Castle, and Merrion Square, by traveling 6.1 mi, 5.8 mi, and 6.0 mi, respectively after landing at Dublin. Travelers can book a car rental at Dublin for about $27 per day to make their sightseeing more efficient.

Where are the least popular layover locations for Washington, D.C. to London flights?

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Fly from Washington, D.C. to London on these airlines
Choose from the following airlines for your flight from Washington, D.C. to London. Flights are based on user searches made on Cheapflights and were last updated on February 29, 2024.

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

Discover the top 10 airlines that operate flights from Washington, D.C. to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest$290Average$695FlexibilityNo cancel feeOn-timeN/A
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PLAYCheapest$351Average$515FlexibilityNo cancel feeOn-timeN/A
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LufthansaCheapest$386Average$815FlexibilityNo cancel feeOn-time76%
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Air CanadaCheapest$392Average$773FlexibilityNo cancel feeOn-time67%
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DeltaCheapest$410Average$758FlexibilityNo cancel feeOn-timeN/A
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TAP AIR PORTUGALCheapest$424Average$596FlexibilityNo cancel feeOn-timeN/A
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Scandinavian AirlinesCheapest$426Average$448FlexibilityNo cancel feeOn-time77%
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IcelandairCheapest$463Average$691FlexibilityNo cancel feeOn-time76%