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Cheapest routes to London
Fly to London from these cities
Dublin
Abu Dhabi
New Delhi
Beijing
Boston
Seattle
Melbourne
Miami
Perth
Chicago
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Denver
Chicago
Auckland
Beijing
Sydney
Osaka
Osaka
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Travel guides for London
Tips for flying to London
Book at the right time: Many routes to London are international. Aim to book 6–10 weeks ahead. Prices spike sharply within 2 weeks of departure.
Shift your dates by a day or two: Mid-week departures (Tuesday–Wednesday) are almost always cheaper than weekend flights. Even shifting by one day can make a meaningful difference.
Search in private browsing: Some booking sites use cookies to track repeat searches and may show higher prices after multiple lookups. Use an incognito window — or just use Booked AI, which pulls live prices without any tracking markup.
Flights to London summary
The cheapest flights to London start from $141, with prices ranging up to $2,693 depending on origin city and airline.
London is connected to 18 cities with direct or connecting flights tracked on Booked AI.
The average flight time to London is approximately 16 hours and 34 minutes, though this varies by origin city.
Frequently asked questions about flights to London
How much do flights to London cost? The cheapest flights to London start from $141. Compare prices from 18 cities on Booked AI.
How long are flights to London? Flight times to London vary by origin. The average duration across 18 routes is approximately 16 hours and 34 minutes.
Prices sourced via Duffel and updated regularly. All fares shown are indicative one-way prices in AUD and may vary at time of booking. Booked AI is an IATA-accredited travel platform.