Airlines where it's cheapest to upgrade to business and first class flights

dailystar.co.uk:

first or business class especially when on long-haul flights. When cramped into a small economy seat it’s easy to dream of lying flat in a cushy seat with food and drink on tap.However, reality hits when you look up the price of an upgraded seat which can be in the thousands. READ MORE: Flight attendant would 'never upgrade passenger' wearing certain clothes While flight attendants often reveal their secrets to bagging free upgrades, when it comes to a once-in-a-lifetime holiday plenty of keen flyers will choose to splash out on an upgraded experience.It's not a cheap experience, but there are some airlines which won't charge as much for the privilege.

To offer a helping hand, the team at money.co.uk have analysed Google Flights data to determine the airlines with the smallest difference in prices between economy and business or first class and reveal the most affordable airlines to upgrade with.The airline where the difference between economy and first-class tickets is smallest is All Nippon Airways.

However, this is partially because ANA tickets are so expensive to begin with, with the average economy ANA ticket from Tokyo is £4,328.In second is Thai Airways, where a first-class ticket is 313% more expensive than an economy one (on average).

The majority of services on Thai Airways are between Asia and Europe, including a direct route from Thailand to London Heathrow.All three of the airlines with the smallest price differences are based in Asia, with Korean Air coming third.