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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.

🇬🇧From London

London to New York from just £515

34% off transatlantic fares this week - plus Business Class deals from £2,898 for premium subscribers

May 2

$396

🇺🇸From Seattle

Seattle to Tokyo from just $396

Direct flights to Tokyo under $400, Europe from $410, plus premium Business Class deals up to 59% off - this week's best from SEA

May 1

$94

🇺🇸From Denver

Denver to Cancun from just $94

Save up to 50% on flights from DEN this week - plus unlock Business Class deals to London and Frankfurt for premium subscribers.

May 1

Want more deals like these?

Tips for Finding Cheap Flights to London

Norwegian, JetBlue, Virgin Atlantic, and British Airways all compete on transatlantic routes
Compare all six London airports — Heathrow, Gatwick, Stansted, Luton, City, and Southend
East Coast cities (NYC, Boston, Philadelphia) consistently have the cheapest London fares
Consider positioning flights from cheaper departure cities for the biggest savings
The Heathrow Express and Gatwick Express connect airports to central London quickly

Fly to London From

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

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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