Cheap flights from London to District of Columbia from $337

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to District of Columbia departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

TAP AIR PORTUGAL Logo
10:35 am - 8:50 pmLGW-IAD
15h 15m1 stop
TAP AIR PORTUGAL Logo
6:30 pm - 3:45 pmIAD-LGW
17h 15m1 stop
$481TAP AIR PORTUGAL
Find Deal
Thu, Oct 23 - Mon, Oct 27
Icelandair Logo
9:25 pm - 7:20 pmLHR-IAD
26h 55m1 stop
Icelandair Logo
8:30 pm - 11:55 amIAD-LHR
10h 25m1 stop
$482Icelandair
Find Deal
Mon, Sep 15 - Mon, Sep 22
TAP AIR PORTUGAL Logo
6:00 am - 3:20 pmLHR-IAD
14h 20m1 stop
TAP AIR PORTUGAL Logo
6:30 pm - 12:40 pmIAD-LHR
14h 10m1 stop
$485TAP AIR PORTUGAL
Find Deal
Thu, Oct 23 - Mon, Oct 27
British Airways Logo
3:05 pm - 11:07 pmLGW-DCA
13h 02m1 stop
British Airways Logo
1:39 pm - 8:10 amDCA-LGW
13h 31m1 stop
$613British Airways
Find Deal
Fri, Sep 12 - Fri, Sep 19
British Airways Logo
3:05 pm - 11:07 pmLGW-DCA
13h 02m1 stop
British Airways Logo
6:45 am - 7:50 amDCA-LGW
20h 05m1 stop
$617British Airways
Find Deal
Thu, Sep 4 - Sun, Sep 14
Lufthansa Logo
9:40 am - 8:15 pmLCY-IAD
15h 35m1 stop
Lufthansa Logo
10:00 pm - 4:40 pmIAD-LCY
13h 40m1 stop
$653Lufthansa
Find Deal
Thu, Nov 6 - Mon, Nov 10
Lufthansa Logo
9:40 am - 8:15 pmLCY-IAD
15h 35m1 stop
Lufthansa Logo
6:00 pm - 4:40 pmIAD-LCY
17h 40m1 stop
$658Lufthansa
Find Deal
Thu, Nov 6 - Mon, Nov 10
Virgin Atlantic Logo
7:45 am - 5:05 pmLCY-DCA
14h 20m2 stops
Virgin Atlantic Logo
1:20 pm - 7:15 amDCA-LCY
12h 55m2 stops
$671Virgin Atlantic
Find Deal
Tue, Sep 16 - Tue, Sep 23
Virgin Atlantic Logo
9:20 am - 4:05 pmLCY-IAD
11h 45m1 stop
Virgin Atlantic Logo
6:05 pm - 4:35 pmIAD-LCY
17h 30m1 stop
$673Virgin Atlantic
Find Deal
Mon, Nov 3 - Tue, Nov 11
Delta Logo
8:40 am - 5:10 pmLCY-DCA
13h 30m2 stops
Delta Logo
5:00 pm - 9:30 amDCA-LCY
12h 30m2 stops
$1,502Delta
Find Deal
Thu, Oct 16 - Thu, Oct 30

TAP AIR PORTUGAL flights from London to District of Columbia

Our best TAP AIR PORTUGAL deals on London to District of Columbia flight tickets
TAP AIR PORTUGAL
Oct 23
LGW10:35 amLondon Gatwick
15h 15m
1 stop
IAD8:50 pmWashington, D.C. Dulles Intl
Oct 27
IAD6:30 pmWashington, D.C. Dulles Intl
17h 15m
1 stop
LGW3:45 pmLondon Gatwick
TAP AIR PORTUGAL
Oct 23
LHR6:00 amLondon Heathrow
14h 20m
1 stop
IAD3:20 pmWashington, D.C. Dulles Intl
Oct 27
IAD6:30 pmWashington, D.C. Dulles Intl
14h 10m
1 stop
LHR12:40 pmLondon Heathrow
TAP AIR PORTUGAL
Oct 15
LHR6:00 amLondon Heathrow
14h 20m
1 stop
IAD3:20 pmWashington, D.C. Dulles Intl
Oct 19
IAD5:45 pmWashington, D.C. Dulles Intl
11h 35m
1 stop
LHR10:20 amLondon Heathrow

Lufthansa flights from London to District of Columbia

Our best Lufthansa deals on London to District of Columbia flight tickets
Lufthansa
Nov 6
LCY9:40 amLondon City
15h 35m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
Nov 10
IAD10:00 pmWashington, D.C. Dulles Intl
13h 40m
1 stop
LCY4:40 pmLondon City
Lufthansa
Nov 6
LCY9:40 amLondon City
15h 35m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
Nov 10
IAD6:00 pmWashington, D.C. Dulles Intl
17h 40m
1 stop
LCY4:40 pmLondon City
Lufthansa
Aug 13
LHR11:30 amLondon Heathrow
13h 35m
1 stop
IAD8:05 pmWashington, D.C. Dulles Intl
Nov 8
IAD6:20 pmWashington, D.C. Dulles Intl
7h 20m
LHR6:40 amLondon Heathrow

momondo Fare Finder

 
Customize your flight search to find flights from London to District of Columbia 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, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from London to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 10/23

10:35 am-8:50 pm

1 stop15h 15m

Washington, D.C. Dulles Intl

Mon 10/27

6:30 pm-3:45 pm

1 stop17h 15m

$481

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 9/15

9:25 pm-7:20 pm

1 stop26h 55m

Washington, D.C. Dulles Intl

Mon 9/22

8:30 pm-11:55 am

1 stop10h 25m

$482

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 10/23

6:00 am-3:20 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Mon 10/27

6:30 pm-12:40 pm

1 stop14h 10m

$485

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Fri 9/12

3:05 pm-11:07 pm

1 stop13h 02m

Washington, D.C. Reagan-National

Fri 9/19

1:39 pm-8:10 am

1 stop13h 31m

$613

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 9/4

3:05 pm-11:07 pm

1 stop13h 02m

Washington, D.C. Reagan-National

Sun 9/14

6:45 am-7:50 am

1 stop20h 05m

$617

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 11/6

9:40 am-8:15 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 11/10

10:00 pm-4:40 pm

1 stop13h 40m

$653

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 11/6

9:40 am-8:15 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 11/10

6:00 pm-4:40 pm

1 stop17h 40m

$658

LondonWashington, D.C.

LCY - DCA

LCYDCA

London City

Tue 9/16

7:45 am-5:05 pm

2 stops14h 20m

Washington, D.C. Reagan-National

Tue 9/23

1:20 pm-7:15 am

2 stops12h 55m

$671

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 11/3

9:20 am-4:05 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Tue 11/11

6:05 pm-4:35 pm

1 stop17h 30m

$673

LondonWashington, D.C.

LCY - DCA

LCYDCA

London City

Thu 10/16

8:40 am-5:10 pm

2 stops13h 30m

Washington, D.C. Reagan-National

Thu 10/30

5:00 pm-9:30 am

2 stops12h 30m

$1,502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to District of Columbia from

How to get the cheapest flight ticket from London to District of Columbia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to District of Columbia?

In general, February is the cheapest month to fly from London to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $623. If you don’t want to visit District of Columbia in February, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of $660.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Thursday when prices can be found for as low as $826. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from London because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $939.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from London in the evening is the least expensive time of day to depart. momondo users have found prices as low as $749 when looking at flights departing in the evening. Flights to District of Columbia are more costly in the morning, with an average ticket price of $880. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London to District of Columbia flight route?

Fly from London Heathrow to Washington, D.C. Dulles Intl for the best London - District of Columbia flight prices

How far in advance should I book a flight to District of Columbia?

You are more likely to see cheaper flights to District of Columbia from London when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $861 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from London for as low as $750 on momondo.

What cabin class options are available on London to District of Columbia flights?

There are 4 cabin classes available to choose from on London to District of Columbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to District of Columbia flights?

You could potentially save up to 44% on your flight if you consider stops on a London to District of Columbia flight.

Cheap London to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to District of Columbia

Best Price Found

$337

Fastest flight time

10h 35m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from London in the past 72 hours is $337. The best round-trip flight deal from London to District of Columbia found on momondo in the last 72 hours is $481.
The fastest flight from London to District of Columbia takes 10h 35m
Direct flights go from London to District of Columbia every day.
There are 2 airports near District of Columbia: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)

  • When did momondo last update prices for flights from London to District of Columbia?

    Prices for flights from London to District of Columbia refresh daily.

  • How many operators does momondo search for flights from London to District of Columbia?

  • How old do you have to be to fly from London to District of Columbia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The required travel and health documents for your District of Columbia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London to District of Columbia?


Best airlines flying from London to District of Columbia

Compare and see reviews for airlines that fly from London to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $304Free CancellationRating
7.0
102 reviews
Search PLAY flights
Scandinavian AirlinesPriceFrom $390Free CancellationRating
7.3
1,457 reviews
Search Scandinavian Airlines flights
Austrian AirlinesPriceFrom $431Free CancellationRating
7.6
823 reviews
Search Austrian Airlines flights
TAP AIR PORTUGALPriceFrom $476Free CancellationRating
7.1
1,939 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $510Free CancellationRating
7.0
520 reviews
Search Icelandair flights
British AirwaysPriceFrom $595Free CancellationRating
6.6
7,230 reviews
Search British Airways flights
American AirlinesPriceFrom $619Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Aer LingusPriceFrom $652Free CancellationRating
7.1
1,193 reviews
Search Aer Lingus flights
DeltaPriceFrom $652Free CancellationRating
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $663Free CancellationRating
7.4
8,905 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to District of Columbia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to District of Columbia. momondo saves you time and could save you money on your trip.

Can I find flights from London to District of Columbia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to District of Columbia flights to just show those with flexible booking policies.

How can momondo help me find flights from London to District of Columbia?

Once you have performed a search for London to District of Columbia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to District of Columbia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to District of Columbia, momondo offers a useful price alert feature which will track prices for flights to District of Columbia from London and alert you when they change.


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