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London itineraries by trip length

Last updated . Transport, entry and booking details can change. Check the named official sources before travel.

The cheapest month to fly to London

Of the 10 coming months with fares on record, November 2026 is currently the cheapest to fly from New York, from €376 round trip.

Lowest round trip fare found for each coming month, New York to London
MonthRound trip fromFound onSearch
October 2026€50217 October 2026, nonstopSee dates
November 2026cheapest€37610 November 2026, 1 stop outSee dates
December 2026€4182 December 2026, 2 stops outSee dates
January 2027€8151 January 2027, 1 stop outSee dates
March 2027€5558 March 2027, 1 stop outSee dates
April 2027€5363 April 2027, 2 stops outSee dates
May 2027€55916 May 2027, 1 stop outSee dates
June 2027€7348 June 2027, 1 stop outSee dates
July 2027€6967 July 2027, 1 stop outSee dates
September 2027€44317 September 2027, 1 stop outSee dates

Lowest round trip fares recently found on Aviasales for each month, New York to London, checked 7 October 2026. Prices move constantly, so read this as the shape of the year rather than a quote.

London is too large for a landmark checklist. A good short plan uses the river and Tube to connect compact clusters, then lets the free national collections carry much of the indoor time.

How many days do you need in London?

3 days give a first visit 3 compact zones: Westminster, the City and one museum plus neighbourhood day.

Use contactless payment or Oyster consistently, and swap the outdoor sequence for a museum when the weather turns.

Book the trip

Start with London, dates and travellers

Compare the travel services first, then use the itinerary below to plan each day.

You book each service directly with its supplier. These separate bookings do not form a RoamWeek package.

What we checked

Why this page exists. Every RoamWeek page has to say something true of it and false of its siblings. For London that is the question of how long to stay, which the duration pages below answer one length at a time.