Frontier Airlines offers ultra-low-cost fares with only the flight included. If you want to choose your own seat, check a bag or bring a carry-on, you'll pay fees. If you'd like the option to select your own seat — even a middle seat in the back of the aircraft — you’ll need to pay extra. Also, the complimentary snacks and soft drinks that other airlines hand out come with a charge on Frontier Airlines.

This pricing model is great if you’re a budget traveler who wants to pay only for the things important to you — things like legroom.

If you like the idea of a la carte savings, but consider legroom a priority when you fly, you should know about how Frontier Airlines’ seating system works.

How do Frontier’s seat assignment fees work?

When you go to book a Frontier flight, you’ll have the option of picking a seat. The seat selection screen looks like this — the first few rows are sold at a premium price relative to the rows in the back.

You can choose one of these seats for the price listed. But you don’t have to. Just scroll to the bottom of the page, and click the “Continue” button.

On the next page, you’ll get another prompt from Frontier asking you to confirm that you don’t want to select a seat. At that point you’ll choose the “No, thanks, I’ll take whatever” option.

What if I don’t pay for seat selection?

Not selecting a seat doesn't mean you won’t get one, it just means that Frontier will assign one to you at check-in or at the gate. This means you’re much more likely to get put in a middle seat, near the back.

So when deciding whether to pay for seat selection, ask yourself: Is the cost of selecting a seat worth it to avoid sitting in the middle? If not, you can skip it and save some cash.

Families who want to sit together might consider paying for seat selection to avoid getting split up, though gate agents will often work to keep families together.

What is Frontier stretch seating?

Most seats on Frontier Airlines flights have between 28 and 31 inches of pitch, which is the distance from the back of your seat to the back of the seat in front of you. That’s slightly below the average pitch of 30 to 31 inches found on other airlines.

Frontier Airlines stretch seating comes with an extra five to seven inches of pitch. These seats also recline, unlike the other seats, and they offer bigger tray tables. Frontier typically offers five or six rows of stretch seating on its aircraft, including the exit rows.

How much does Frontier Airlines stretch seating cost?

The cost of Frontier Airlines stretch seating depends on a couple of different factors, most notably how long the flight is and when you book. On some flights, stretch seating starts at $16 for each leg. On longer flights that you book later, this perk can cost well over $56. You'll have to check your individual flights for specific pricing as it varies by route and length.

If you have a connecting flight, you’ll need to pay for stretch seating for each leg of your flight.

If you want to pick any seat while flying on Frontier, you’re going to pay something, so take that into account when deciding if the stretch seating option is worth it for you.