Washington → London flights
Washington (DCA, IAD)→London (LCY, LGW, LHR, LTN, SEN, STN)
from$448
Last observed price · Last checked: 13 Aug 2026 · Price may change
Selected search
Last checked: 13 Aug 2026 · Price may change
$448
Thu 1 Oct 2026 → Mon 5 Oct 2026
TAP Air Portugal1 stop4 nights
CheapestLast checked: 13 Aug 2026 · Price may change
$448 lowest$670 average10h 05m fastest
Tickets found in the last 7 days
The lowest fares our queries caught, cheapest first.
$448Cheapest1 Oct 2026 → 5 Oct 2026TAP Air Portugal · 1 stop · 22:35Last checked: 13 Aug 2026 · Price may change4 nightsView ticket →$45315 Sep 2026 → 6 Oct 2026TAP Air Portugal · 1 stop · 22:35Last checked: 13 Aug 2026 · Price may change21 nightsView ticket →UA$53416 Sep 2026 → 7 Oct 2026United Airlines · 1 stop · 22:05Last checked: 13 Aug 2026 · Price may change21 nightsView ticket →$6322 Dec 2026 → 8 Dec 2026TAP Air Portugal · 1 stop · 22:30Last checked: 13 Aug 2026 · Price may change6 nightsView ticket →$65326 Nov 2026 → 4 Dec 2026TAP Air Portugal · 1 stop · 17:25Last checked: 13 Aug 2026 · Price may change8 nightsView ticket →$6551 Dec 2026 → 9 Dec 2026TAP Air Portugal · 1 stop · 17:25Last checked: 13 Aug 2026 · Price may change8 nightsView ticket →
$7005 Dec 2026 → 15 Dec 2026Icelandair · 1 stop · 19:40Last checked: 13 Aug 2026 · Price may change10 nightsView ticket →
$75511 Sep 2026 → 20 Sep 2026SAS · 2 stops · 20:20Last checked: 13 Aug 2026 · Price may change9 nightsView ticket →Starting prices by month
The lowest fare our queries observed in each month. Open a month to see its days; click a day with no price and we will search it for you.
Observed priceLowest monthno price observedLast checked: 13 Aug 2026
Washington → LondonThu 1 Oct 2026 · $448
Find flightsRoute facts
Direct flights
Non-stop
DCA - LCY, 10h 05m
Airlines seen
6
Air Canada, JetBlue, Icelandair, SAS
Cheapest month
October 2026
$448
Average observed
$670
Typical duration
10h 05m
Alternative airports
6
IAD, LGW, LHR, LTN, SEN, STN
Frequently asked
Are there direct flights from Washington to London?+−
Yes. We have seen non-stop flights on this route, flown by British Airways, United Airlines, Virgin Atlantic.
How much is a flight from Washington to London?+−
The lowest fare we have observed is $448, found on 13 Aug 2026. Prices move, so read it as a floor rather than a quote.
Which airlines fly from Washington to London?+−
These are the carriers we have seen on the route: Air Canada, JetBlue, Icelandair, SAS, TAP Air Portugal, United Airlines.
When is the cheapest month to fly from Washington to London?+−
In our observations October 2026 is the cheapest month so far, at $448.
Similar routes
Last checked: 13 Aug 2026