Cheapest & Most Expensive Months To Book Flights To London

Planning a trip to London and wondering when flights are cheapest — and most expensive — to book? You’ve come to the right place!

Cheapest & Most Expensive Months To Book Flights To London

Most Expensive Times to Fly to London

Flight cost to London is heavily influenced by tourism, school breaks, and global events. Travelers should expect higher fares during these busy times:

  • June – August: Peak summer travel; July is typically the most expensive.
  • December – early January: Christmas and New Year’s push airfare to its highest.
  • April (Easter): Holiday travel raises demand across the UK.
  • Late May (Spring Bank Holiday): Popular with domestic and European travelers.
  • August (Notting Hill Carnival): Adds extra demand at the end of summer.

Cheapest Months For Flights to London

The best deals appear in the off-season and shoulder months when demand eases and airlines compete for travelers.

  • January – February: Cold winter months with lowest fares.
  • March (pre-Easter): Affordable window before spring demand.
  • September – November: Shoulder season after summer crowds leave.
  • Early December (first half): Short dip before the holidays.

Price Summary Table for London Flights

Time Period Price Level Why It Matters
June – Aug 💲💲💲 Highest Summer tourism peak
Mid-Dec – Early Jan 💲💲💲 Highest Christmas & New Year holidays
April (Easter) 💲💲 High Holiday travel
Late May (Bank Holiday) 💲💲 High Domestic/European holiday
Aug (Notting Hill Carnival) 💲💲 High Cultural festival
Jan – Feb 💲 Lowest Winter lull
March (pre-Easter) 💲 Low Shoulder fares
Sept – Nov 💲 Low Post-summer shoulder
Early Dec (1st 2 weeks) 💲 Low Pre-Christmas dip

Airline Mistake Fares