$380 Find Cheap Flights from District of Columbia to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 7/15. 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 London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from District of Columbia to London 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 round-trip flight deals from District of Columbia to London

Sun, Aug 9 - Sun, Aug 23
Multiple Airlines Logo
9:55 am - 11:20 pm
IAD
-
STN
32h 25m
2 stops
Multiple Airlines Logo
7:05 am - 8:24 pm
STN
-
IAD
18h 19m
2 stops
$882Multiple Airlines
Fri, Oct 9 - Tue, Oct 20
TAP AIR PORTUGAL Logo
5:05 pm - 11:20 am
IAD
-
LGW
13h 15m
2 stops
TAP AIR PORTUGAL Logo
10:35 am - 8:35 pm
LGW
-
IAD
15h 00m
1 stop
$882TAP AIR PORTUGAL
Wed, Sep 2 - Tue, Sep 15
United Airlines Logo
12:40 pm - 8:35 am
DCA
-
LHR
14h 55m
1 stop
United Airlines Logo
2:05 pm - 9:50 pm
LHR
-
DCA
12h 45m
1 stop
$882United Airlines
Mon, Aug 3 - Wed, Aug 12
SWISS Logo
8:20 pm - 12:35 pm
IAD
-
LCY
11h 15m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$882SWISS
Wed, Jul 8 - Tue, Jul 21
Icelandair Logo
8:30 pm - 11:55 am
IAD
-
LHR
10h 25m
1 stop
Icelandair Logo
9:25 pm - 10:15 pm
LHR
-
IAD
29h 50m
1 stop
$882Icelandair
Sun, Aug 9 - Sat, Aug 15
JetBlue Logo
9:00 am - 9:35 am
DCA
-
LGW
19h 35m
1 stop
JetBlue Logo
12:20 pm - 9:50 pm
LGW
-
DCA
14h 30m
1 stop
$882JetBlue
Thu, Jul 23 - Mon, Aug 3
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
$883Icelandair
Sun, Aug 9 - Sat, Aug 15
JetBlue Logo
9:00 am - 9:35 am
DCA
-
LGW
19h 35m
1 stop
JetBlue Logo
12:20 pm - 9:50 pm
LGW
-
DCA
14h 30m
1 stop
$884JetBlue
Mon, Aug 3 - Wed, Aug 12
SWISS Logo
8:20 pm - 12:35 pm
IAD
-
LCY
11h 15m
1 stop
SWISS Logo
9:15 am - 4:45 pm
LCY
-
IAD
12h 30m
1 stop
$887SWISS
Mon, Aug 3 - Mon, Aug 17
United Airlines Logo
6:30 pm - 6:55 am
IAD
-
LHR
7h 25mnonstop
United Airlines Logo
12:10 pm - 4:45 pm
LHR
-
IAD
33h 35m
1 stop
$889United Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$380
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Washington Dulles Airport to London Stansted Airport

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

Insights shared by verified travelers who flew the route from District of Columbia to London 
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 flights from District of Columbia to London

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

    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.

  • 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?

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London 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?

    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 from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Slough
Hayes
Richmond
Wembley
Luton
Crawley
Ilford
Eastbourne
Watford
Bedford
Colchester
Guildford
Twickenham
Kingston upon Thames
Ipswich
St. Albans
Maidenhead
Newbury
Harrow

Everything you need to know for your flight to London

Cabin class types available on flights to District of Columbia

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.