Toronto has emerged the most affordable city in the world for booking a short-term homestay vacation rental, while Glasgow is the priciest, according to a new index.

Budget-conscious travelers headed to Toronto may find comfort in knowing that booking a room with a family or property owner in Canada's biggest city runs an average of $20 a night on .

On the flipside, a room in a private home in Glasgow runs an average of $61, making the Scottish city the most expensive homestay destination on the list.

In their inaugural Homestay Index, researchers collected user data from their own online booking platform, guest and host surveys as well as research from within the vacation rental industry.

Homestay’s index differs greatly from a listing of the priciest and cheapest listings found on competitor .

According to , which conducted the research, Boston will set guests back an average of $273 USD a night for an apartment or studio.

At the other end of the spectrum, Tirana, Albania emerged as offering the most affordable destination Airbnb bookings.

The Homestay Index also found that nearly half (47 per cent) of guests who use short-term vacation rentals are Millennials, aged 18 to 29.

The top destinations in terms of bookings in 2014 included London, Dublin and Havana, while Sao Paulo has the largest number of hosts.

Here are the top 10 most expensive homestay cities on Homestay.com:

  • Glasgow $61 (USD)
  • Rome 60
  • Amsterdam 57
  • Paris 54
  • San Francisco 53
  • Singapore 51
  • London 50
  • Florence 49
  • New York 49
  • Kyoto 46

The top 10 least expensive homestay cities are:

  • Toronto $20 (USD)
  • Alicante, Spain 20
  • Santiago, Chile 22
  • Darwin, Australia 22
  • Montreal 23
  • Buenos Aires 24
  • Berlin 24
  • Madrid 24
  • Seoul 25
  • Vancouver 26