100 Dollars A Day

The Hidden Costs of Flying

By Clara Ritger,

Oct 28, 2025   —   6 min read

AdviceFlying
Passengers wait in line with carry-on bags to board a

Summary

Airfare isn’t just the ticket price. From fees to fatigue, here’s how hidden costs can make "cheap" flights more expensive than they seem.

These days, buying a flight ticket is kind of like buying a bowl of white rice. You can eat it, but you're probably going to want some kind of sauce on it. And a meat. And even after you pay extra to add those two things, all you have is just chicken rice. If you want bibimbap, you're probably going to have to dip into your kid's college fund.

I see a ticket, fully refundable, with a seat selection, extra legroom, a checked bag, a meal choice... and we're not even in first class.

If you think that's bad: travel abroad, where charging for carry-ons is custom, and if you want to use a debit or credit card to pay for your booking, you're going to have to pay a 3-5% fee. (Like, how else do you expect me to pay for this?)

A man is shaking a water jug of coins onto a store countertop.
Is this how you want me to pay for my flight ticket?

Part of the problem with this "unbundling" of services is that it doesn't exactly make the flight aggregators that I analyzed in the previous post all that reliable. Even when you filter out basic economy tickets, you're still not seeing the total cost with add-ons – like baggage – and because there's no universal fee structure, what looks like a cheaper flight could actually be the more expensive option once you've finished adding what you need.

In this post I dive into some of the other hidden costs of flying that, after flying so much, I now consider before I book a ticket.

Those airline fees are just the tip of the iceberg.

A GIF of a SNL skit with cast member dressed up as an iceberg and the caption reads: "It's insane."

This post is for Travelers only.

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