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Cheap Flights to London

World-class museums, historic landmarks & vibrant culture — with unbeatable transatlantic fares

Flight Deals to London

London is the most popular transatlantic destination and benefits from fierce airline competition, making it one of the cheapest European cities to fly to from the US. With six airports and dozens of carriers competing for passengers, deals appear constantly — especially from East Coast cities where fares regularly drop below $400 roundtrip.

Best Time to Fly to London

January through March offers the cheapest fares. October-November is also good value with pleasant autumn weather.

This Week's Picks

See What You're Missing

Real deals from this week - subscribers get these and more, every Friday.

£471 London to San Francisco + 14 more deals
🇬🇧From London

£471 London to San Francisco + 14 more deals

This week: direct flights to San Francisco from £471, Barcelona from £65, Singapore from £659, and Business Class deals unlocked for Premium members. Up to 56% below typical prices.

Oct 10
77% off San Francisco → Las Vegas ($38)$38
🇺🇸From San Francisco

77% off San Francisco → Las Vegas ($38)

OAK → Las Vegas for just $38 round-trip - 77% below the typical $164 median - plus SFO → Cancun for $335 (75% off) and SFO → Tokyo for $708.

Oct 9
77% off Los Angeles → Seattle ($38)$38
🇺🇸From Los Angeles

77% off Los Angeles → Seattle ($38)

LAX to Seattle for just $38 round-trip - 77% below the typical $165 median - plus Tokyo Narita for $663 (64% off) and Los Cabos for $340 (50% off) direct from LAX.

Oct 9
88% off US Cities → Seattle ($47)$47

88% off US Cities → Seattle ($47)

LAS → SEA at just $47 round-trip is 88% below typical - plus SEA → Tokyo for $845 (60% off) and ATL → San Juan for $128 (61% off).

Oct 9
39% off New York → Frankfurt ($590)$590
🇺🇸From New York

39% off New York → Frankfurt ($590)

JFK to Frankfurt for just $590 round-trip - 39% below the typical $973 fare - plus direct flights to Aruba from $335 and Cancun from $409 out of Newark.

Oct 9
69% off Washington DC → San Juan ($317)$317
🇺🇸From Washington DC

69% off Washington DC → San Juan ($317)

DCA to San Juan at $317 round-trip is 69% below the typical median - plus Miami for $177 and Seoul for $994 are two more jaw-dropping deals from DC airports this week.

Oct 9

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Tips for Finding Cheap Flights to London

Fly to London From

🇺🇸New York→🇺🇸Boston→🇺🇸Philadelphia→🇺🇸Chicago→🇺🇸Washington DC→🇺🇸Miami→🇺🇸Los Angeles→🇺🇸San Francisco→🇺🇸Atlanta→

Other Popular Destinations

🇯🇵Flights to Tokyo→🇮🇹Flights to Rome→🇪🇸Flights to Barcelona→🇮🇪Flights to Dublin→🇳🇱Flights to Amsterdam→🎰Flights to Las Vegas→

Frequently Asked Questions

What is the cheapest flight to London?

Roundtrip flights from the US East Coast regularly drop to $300-400 during sales. From NYC, fares under $350 appear several times per year on carriers like Norse Atlantic, JetBlue, and TAP.

Which London airport should I fly into?

Heathrow (LHR) has the best transport links and most full-service flights. Gatwick is good for budget carriers. Stansted and Luton are cheaper but further from central London.

How far in advance should I book?

For the best London fares, book 2-4 months ahead for economy. However, last-minute sales and error fares can offer even better prices — subscribe to get alerted.

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