And the World’s Cheapest Airline is…

The 2018 Global Flight Price Ranking, produced by travel planning website Rome2rio, considered economy class airfares from January and February of this year to determine the average cost per kilometer for flights on airlines around the world.

The results showed the 50 cheapest airlines overall, the cheapest airlines for international and domestic routes, and the countries where flying is cheapest by distance.

Across the board, Tigerair Australia was the world’s cheapest at only $0.06 per kilometer, followed by AirAsia X ($0.07), Indonesia AirAsia ($0.08), Jetstar ($0.09), and Etihad ($0.10) rounding out the top five.

Citilink Indonesia, WOW Air, Oman Air, Lion Mentari Airline and Ryanair also came in with a cost of $0.10 per kilometer. No U.S. airlines were in the cheapest 50 airlines, which all came in at $0.14 or less.

World's 25 cheapest airlines (by price per kilometre travelled in $US)

1. Tigerair Australia 0.06
2. AirAsia X 0.07
3. Indonesia AirAsia 0.08
4. Jetstar 0.09
5. Etihad 0.10
6. Citilink Indonesia 0.10
7. WOW air 0.10
8. Oman Air 0.10
9. Lion Mentari Airlines 0.10
10. Ryanair 0.10
11. Qatar Airways 0.11
12. Kuwait Airways 0.11
13. Royal Brunei Airlines 0.11
14. Virgin Australia 0.11
15. Thai Vietjet Air 0.11
16. Batik Air 0.11
17. SriLankan Airlines 0.11
18. Gulf Air Bahrain 0.11
19. Jet Airways 0.11
20. Qantas 0.11
21. IndiGo Airlines 0.11
22. Air India Limited 0.11
23. Emirates 0.11
24. Thai Lion Mentari 0.11
25. PT. Sriwijaya Air 0.11

A staggering 24 of this year’s top 30 most affordable international airlines are based in Asia or the Middle East, with AirAsia X ($0.07 per kilometer), Air India Express and Indonesia AirAsia (ticket prices for both are $0.08 per kilometer) forming the three leading players in this category.

The world's cheapest international carriers

1. AirAsia X 0.07
2. Air India Express 0.08
3. Indonesia AirAsia 0.08
4. Primera Air 0.09
5. IndiGo Airlines 0.10
6. Etihad 0.10
7. Ryanair 0.10
8. Qantas 0.10
9. WOW air 0.10
10. Virgin Australia 0.10

In domestic travel (meaning domestic flights for that airline, depending on where it is based), the cheapest airlines by kilometer were Tigerair Australia, Jetstar, Indonesia AirAsia, JetSMART, and Indonesia AirAsia Extra.

The countries with the cheapest average prices by distance, according to the study, were Chile, Indonesia, Turkey, India, Bulgaria, Thailand, and South Africa.

“Since our 2016 report, we have seen some significant shifts in pricing and ranking,” said Kirsteene Phelan, chief operating officer at Rome2rio to Travel Pulse.

“Airlines who have ventured into the budget scene - such as British Airways - as well as those such as Norwegian who have a reputation as budget stars - need to pass on higher fuel and operational costs to the customer.”