$510 Cheap Aer Lingus flights Washington (IAD) to London (LHR)

View $510 flight on Sun, Jan 11, 2026Opens in a new window

$510 Cheap Aer Lingus flights Washington (IAD) to London (LHR)

Prices were available within the past 7 days and start at $510 for one-way flights and $818 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Tue, Apr 14 - Tue, Apr 21
IAD
Washington
LHR
London
$818 Roundtrip, found 4 days ago
$818
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Apr 14 from Washington to London, returning Tue, Apr 21, priced at $818 found 4 days ago
Flights from Washington (IAD) to London (LHR)
Origin airport
Washington Dulles Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
British Airways
Distance
5866 km
Average flight time
12 hours 22 mins