What's the cheapest flight in the world per kilometer traveled?

We already have a question about the cheapest flight overall, however that only covers the total amount paid for the whole journey. I am instead interested to know which route is the cheapest in the world per kilometer traveled on board. To clarify the conditions of this questions:
- The flight must be scheduled, rather than a one time event
- The journey must take place between airports that have an IATA code
- The flight must be bookable on Google Flights or Kayak for the price you quote in your answer
- The price you quote must be stable over at least a couple of months, meaning one could reasonably book such a trip without waiting for special promotions
- If round trip tickets are cheaper, you can divide the price by two to get the per-leg cost
- Here "distance" refers to the Great Circle route between the two airports, not the actual route of the aircraft
- If the flight has more than one leg, you can only use the distance between the starting airport and the destination airport, regardless of any intermediate layovers
Best Answer
Well, I'll kick this off by suggesting the same answer as I did in the other question: the subsidized domestic fare for flying from Ashgabat to Balkanabad in Turkmenistan is 38 Turkmen manat for 385 km, which comes to USD 0.0052/km at the February 2018 black market rate of 14 TMT to the dollar.
No, you can't book that on Google Flights, but IMHO this condition is unnecessarily restrictive since it'll also exclude the vast majority of some low-cost carriers (edit: Huh, looks like their coverage has improved a lot since I last checked!).
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What is the cheapest flight on Earth?
According to data collected by Seats and Stools, the cheapest flight in the world\u2014without any discount code or credit card promotion\u2014is an $11 one-way flight with Ryanair from Warsaw to Brussels. The international flight from Poland to Belgium covers 721 miles, and lasts just under two hours.Which country has cheapest air ticket?
A new report has crowned Malaysia the world's cheapest country for air fares. The annual Flight Price Index, published by Kiwi.com, claims the south-east Asian nation offers the best opportunities for affordable air travel.How do you fly free of cost?
10 Ways to Fly for FreeHow much does it cost to fly a plane around the world?
How Much Do Round-the-World Rickets Cost? Most economy-class RTW tickets range between $2,500\u2013$10,000 USD. Depending on your mileage, route, class of fare, and the number of stops, that can drop down to as little as $1,500 USD or jump all the way up to $15,000.what. (Bo Burnham FULL SHOW HD)
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