$422 Cheap Delta flights Houston (IAH) to London (LHR)

View $422 flight on Sat, Jan 24, 2026Opens in a new window

$422 Cheap Delta flights Houston (IAH) to London (LHR)

Prices were available within the past 7 days and start at $422 for one-way flights and $628 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Jan 21 - Thu, Jan 29
IAH
Houston
LHR
London
$628 Roundtrip, found 12 hours ago
$628
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, Jan 21 from Houston to London, returning Thu, Jan 29, priced at $628 found 12 hours ago
Delta
Sat, Jan 24 - Sun, Feb 1
IAH
Houston
LHR
London
$721 Roundtrip, found 12 hours ago
$721
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Jan 24 from Houston to London, returning Sun, Feb 1, priced at $721 found 12 hours ago

Find the cheapest month to fly from Houston (IAH) to London (LHR)

October is typically the cheapest month to fly

From $507 - $731 per traveler.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, JetBlue Airways, KLM, Lufthansa, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
United
Distance
7718 km
Average flight time
15 hours 5 mins

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