$395 Cheap Delta flights Washington (IAD) to London (LHR)

View $395 flight on Wed, Apr 1, 2026Opens in a new window

$395 Cheap Delta flights Washington (IAD) to London (LHR)

Prices were available within the past 7 days and start at $395 for one-way flights and $633 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Apr 6 - Thu, Apr 16
IAD
Washington
LHR
London
$633 Roundtrip, found 5 days ago
$633
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Apr 6 from Washington to London, returning Thu, Apr 16, priced at $633 found 5 days ago
Delta
Mon, Aug 3 - Fri, Sep 4
IAD
Washington
LHR
London
$649 Roundtrip, found 4 days ago
$649
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Aug 3 from Washington to London, returning Fri, Sep 4, priced at $649 found 4 days ago
Delta
Mon, Aug 3 - Fri, Sep 4
IAD
Washington
LHR
London
$649 Roundtrip, found 4 days ago
$649
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Aug 3 from Washington to London, returning Fri, Sep 4, priced at $649 found 4 days ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $638
LHR
Heathrow
Cheapest
Average driving time to city center28 min
Flights from $638

Find the cheapest month to fly from Washington (IAD) to London (LHR)

February is typically the cheapest month to fly

From $444 - $791 per traveler.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
United
Distance
5866 km
Average flight time
12 hours 20 mins

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