Six top destinations
Sydney: £499
China Eastern Airlines from Heathrow via Shanghai. Obligatory stopover in Shanghai on return journey. Valid for departures until June 21. No minimum stay, maximum 90 days. Trailfinders (020-7938 3939).
Los Angeles: £374
Delta from Gatwick via Atlanta. Must be booked by May 20. Full payment required when booking. Valid for departures until May 24. Minimum stay one Saturday night, maximum 30 days. Airline Network (0870 2349915).
Hong Kong: £339
Qantas from Heathrow. Must be booked by tomorrow for departures until June 20. Minimum stay four days, maximum one month. Quest Worldwide Travel (0870 4423513).
New York: £225
Air India from Heathrow. Valid for departures until June 30. No minimum stay, maximum three months. Trailfinders (020-7938 3939).
Amsterdam: £64.10
BMI from Heathrow. Must be booked online. Valid for departures indefinitely. No minimum stay, maximum one year. BMI.
Paris: £97.80
British Airways from Manchester. Must be booked online (£15 supplement if booked by telephone). Valid for departures indefinitely. No minimum stay, maximum one year. British Airways (0870 8509850).
The pick of the rest
Delhi: £329
Etihad Airways from Heathrow via Abu Dhabi. Must be booked by May 17 for departures until July 1. Minimum stay one week, maximum three months. Flight Centre (0870 499 0042).
Boston: £315
KLM from Birmingham via Amsterdam. Must be booked by May 23. Valid for departures until June 30. Minimum stay one Saturday night, maximum one month. Thomas Cook Flights Direct (0870 1111111).
Shanghai: £389
Scandinavian Airlines from Heathrow, Manchester or Birmingham via Copenhagen. Book by June 6 for departures until August 31. Minimum stay seven days, maximum three months. Airline Warehouse (0870 7707339).
Auckland: £519
Korean Air from Heathrow via Seoul. Must be booked by May 31. Valid for departures until June 10. Minimum stay seven days, maximum one year. Travelbag (0870 8146544).
And the rail alternative
Cologne or Aachen: £69
Eurostar from Waterloo or Ashford to Brussels, then Thalys or German Railways ICE high-speed train. Must be booked at least three days before departure. Minimum stay one Saturday night. Eurostar (08705 186186).
NB Fares can change rapidly. These were available in reasonable quantities at the time of writing.