£259 Find Cheap Flights from District of Columbia to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 17/5. 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.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from District of Columbia to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from District of Columbia to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from District of Columbia to Heathrow

Sun, 26 Apr - Sun, 3 May
Scandinavian Airlines Logo
20:20 - 16:00
IAD
-
LHR
14h 40m
1 stop
Scandinavian Airlines Logo
06:40 - 17:00
LHR
-
IAD
15h 20m
2 stops
£459Scandinavian Airlines
Sat, 12 Sep - Fri, 18 Sep
Scandinavian Airlines Logo
20:20 - 17:40
IAD
-
LHR
16h 20m
1 stop
Scandinavian Airlines Logo
15:35 - 17:00
LHR
-
IAD
30h 25m
2 stops
£460Scandinavian Airlines
Tue, 21 Apr - Wed, 29 Apr
TAP AIR PORTUGAL Logo
17:05 - 12:45
IAD
-
LHR
14h 40m
1 stop
TAP AIR PORTUGAL Logo
19:50 - 15:10
LHR
-
IAD
24h 20m
1 stop
£461TAP AIR PORTUGAL
Mon, 13 Apr - Thu, 23 Apr
Scandinavian Airlines Logo
20:20 - 16:00
IAD
-
LHR
14h 40m
1 stop
Scandinavian Airlines Logo
06:40 - 17:00
LHR
-
IAD
15h 20m
2 stops
£461Scandinavian Airlines
Mon, 20 Apr - Thu, 23 Apr
Scandinavian Airlines Logo
20:20 - 16:25
IAD
-
LHR
15h 05m
2 stops
Scandinavian Airlines Logo
06:40 - 17:00
LHR
-
IAD
15h 20m
2 stops
£462Scandinavian Airlines
Mon, 7 Sep - Wed, 23 Sep
Scandinavian Airlines Logo
20:20 - 18:30
IAD
-
LHR
17h 10m
1 stop
Scandinavian Airlines Logo
21:05 - 17:00
LHR
-
IAD
24h 55m
2 stops
£463Scandinavian Airlines
Sun, 19 Apr - Tue, 5 May
Scandinavian Airlines Logo
20:20 - 16:25
IAD
-
LHR
15h 05m
2 stops
Scandinavian Airlines Logo
21:05 - 17:00
LHR
-
IAD
24h 55m
2 stops
£464Scandinavian Airlines
Mon, 4 May - Wed, 13 May
TAP AIR PORTUGAL Logo
22:35 - 22:55
IAD
-
LHR
19h 20m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 15:10
LHR
-
IAD
14h 10m
1 stop
£464TAP AIR PORTUGAL
Mon, 7 Sep - Sat, 12 Sep
Scandinavian Airlines Logo
20:20 - 17:40
IAD
-
LHR
16h 20m
1 stop
Scandinavian Airlines Logo
06:40 - 17:00
LHR
-
IAD
15h 20m
1 stop
£465Scandinavian Airlines
Sun, 19 Apr - Sat, 2 May
Scandinavian Airlines Logo
20:20 - 16:25
IAD
-
LHR
15h 05m
2 stops
Scandinavian Airlines Logo
06:40 - 17:00
LHR
-
IAD
15h 20m
2 stops
£466Scandinavian Airlines
Useful Info

Good to know - Cheap tickets from District of Columbia to London Heathrow Airport

Low seasonJanuary
Cheapest flight£259
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from Washington Dulles Airport to London Heathrow Airport

Flights from District of Columbia to Heathrow: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from District of Columbia to Heathrow 
Learn how KAYAK collects reviews and tips from users.
DeeFlew with United Airlines
IAD
-
LHR
Feb 2025
For me the best route to LHR is the late night departure on UAL. The flight is often roughly 6.5 hours so I skip dinner, use an eye mask and earplugs and try to sleep.
EllenFlew with British Airways
IAD
-
LHR
Oct 2024
Do not check your bag if at all possible, especially if you have a connecting flight. Your bag will not make it.
CraigFlew with United Airlines
IAD
-
LHR
Jun 2024
Get to beginning of boarding group early. Bring as little on board as possible due to small overhead bin space.

FAQs for booking District of Columbia to London Heathrow Airport flights

  • How does KAYAK find such low prices on flights from District of Columbia to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from District of Columbia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from District of Columbia to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to District of Columbia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Gatwick
Milton Keynes
Eastbourne
Hounslow
Luton
Southend-on-Sea
Northampton
Swindon
Slough
Winchester
Croydon
Stansted
Folkestone
Poole
Chichester
Maidstone
Colchester
Chelmsford
Salisbury
Crawley

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports

London Heathrow Airport (LHR)