this month a new seating option, UpFront Plus, where you can pay to have the middle seat next to you be empty, whether you're in the window or aisle. It's just the latest in a unique way to offer more space, at a price, for air travelers. 

We all know the value of an empty middle seat. It's one of those free gifts you rarely get while flying, especially these days when it feels like every amenity is an add-on you'll be charged for, even if you're using a travel website to save money. Frontier's UpFront Plus is playing to that hopefulness, hoping it'll be enough for you to pay. 

, although that practice has ended. Gilbertson also pointed out that another budget airline, where the rows at the front of the plane only have two seats, not three, so each gives a passenger more space than in a traditional row. 

The experience of paying for a row to yourself

There are also similar options outside of budget airlines. On a recent flight from New Zealand to New York, my husband and I opted to try out . With that, you get an economy row of three seats to yourself (or selves, if you book it with someone else) that have the option to flip up a padded footrest to essentially create a lay-flat seating arrangement. Why did we book it? I'm short and can sleep anywhere, but my husband's tall, so we usually end up booking seats with more room anyway. Considering it was a 16-hour flight, we wanted to give ourselves more space, but we weren't in a position to buy business-class seats. Plus, I'm always curious about the latest unique offerings in flying and wanted to see what the couch was all about. It wasn't exactly cheap — upgrading to the Skycouch cost almost 30% the cost of our original flight booking — but as my husband put it, we basically bought a third seat, and all the room that came with it, for one-third the price. And that was a couple of thousand dollars less than upgrading to business. So, was it worth it? Well, the flight ended up being pretty sparsely filled, so just about everyone could spread out to have a row to themselves — including us. Two grown adults can't reasonably fit on one Skycouch (although we did have some laughs trying to see how you'd pull it off), so once it was clear the flight was empty enough, my husband moved to an empty row for himself. Similarly, the row ahead of us had two parents and a baby, and while mom and baby stayed in the row to sleep, dad moved to an empty row for himself (he was very attentive and caring, ). But you can't plan for an empty plane, which is what made it feel worth it to us. We were confident in our comfort for the weeks leading up to the flight knowing we'd have space to stretch out. And, for what it's worth, we found Air New Zealand overall to be an excellent airline.

When is an extra empty seat on a plane worth it?

(Image credit: Getty Images)

How can you decide if you should pay extra for a spare seat? There are some situations where there's strong reasoning for it, like if it's a long-haul flight where you'll want to stretch out, if you're flying with a baby or pet in tow, or if you have a health concern where more room would provide at least peace of mind. Some people are forced by many airlines to buy a second seat based on their size, in . Southwest gives plus-sized passengers an extra seat for free, but Frontier asks passengers to book a second seat. In those cases, unless policies change, the UpFront Plus seats may be less expensive than booking two seats on a given flight. You should consider the price differentials of the empty-seat option vs upgrading to a more premiere cabin. In Frontier's case, the UpFront Plus seats are already in the Premium section, which has more legroom. As an example of Frontier's new offering, on a May flight from Atlanta to Denver, a Premium (extra legroom) seat costs $58-59, while an UpFront Plus seat costs $99. As a budget airline, Frontier requires you to pay if you want to choose your seat at all, with prices starting at $19 on this particular flight. It also is unclear if you truly have the middle seat to yourself — or are just paying to have an empty seat next to you; it looks possible you could pay for an aisle seat with the middle seat empty, while the person in the window seat is paying for the same thing, in which case you'd be "sharing" the empty middle seat. 

The desire for an empty seat hints at the elephant in the room here: airplane seats have gotten smaller. Airplane seat widths were shrunk from 18 to 16 inches since the 1990s, , while, per the , seat "pitches" went from an average of 35 inches in 2011 to 31 inches in 2022. It's no wonder an app to fly private on the cheap has so much appeal. 

Combine that with the oddities of airline rewards programs and the feeling that you get charged for everything on a plane (so ubiquitous it's become ), and it just makes for frustration at every level of commercial flight. Yes, it's a miracle we can get from one side of the country to the other in a few hours, but do we have to pay for it with our common sense in addition to our dollars?

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