Hoping to go to Toronto in Sept 2014. Currently looking at £500p.p. return flights with Aer Lingus or Norwegian. Personal circumstances MAY mean I need to change the booking and go at a later date (if I'm in a new job which won't honour the holiday). Airlines allow this for £85 per person per flight, plus the difference in cost between the original and replacement flight - my question therefore is; if I had to rearrange the date after booking, would I have any chance of getting £500 return flights at (for example) 2 months notice? I don't know if planes are like trains in that the earlier you book the cheaper. Anyone know of any good sales coming up?
On long haul flights it is usually more expensive the closer you get to departure date.
You could purchase a fully flexible economy class ticket which would enable you to make the possible changes that you describe but that would cost far more. However, if you were to start a new job the employer should honour your holiday dates anyway.
I would also look at either BA or Air Canada as their fares also tend to be reasonable. Also looking at skyscanner would be a good bet. (BTW avoid Norwegian).