Sitting in economy class on an airplane, it's hard not to pine for the spacious seating in business and first class. Pretty soon, however, your longing could become a reality – for a lot cheaper than you'd expect.

On-flight auctions that allow passengers to bid on available seat upgrades are currently being adopted by certain airlines in Canada and China. And, if everything goes according to plan, within the next two to three years all airlines will use the service.

How it would work is the auction would begin with an announcement being made over the loud speaker, letting all passengers know about its commencement. Flight attendants would then distribute hand-held devices for the bidding.

Other in-flight innovations currently in the works include broadcasting live sports and ordering meals and duty-free items on your smartphone.

What do you think of on-flight upgrade auctions?

[Image via mrkathika]

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