What Budget Airlines Don't Tell You (Until You're at the Gate)

Budget airlines make their actual profit on fees, not fares, and the fees that catch people off guard are predictable enough to avoid entirely with a little preparation.

Check-in fees are the big one. Many budget carriers charge extra, sometimes significantly, for checking in at the airport counter instead of online. Check in online the moment it opens (usually 24 to 48 hours before departure) and have your boarding pass saved to your phone or printed, counter check-in fees on some airlines run 50 dollars or more.

Bag size enforcement at the gate is the second most common surprise. If your cabin bag doesn't fit the sizer at the gate, you'll pay a fee on the spot, and it's typically higher than if you'd paid for the extra allowance in advance online. Measure your bag before you travel if you're unsure, and when in doubt, pay for the larger cabin allowance ahead of time rather than risk the gate fee.

Printed boarding passes are sometimes required, not just preferred, on certain budget carriers and certain airports, with a fee charged if you show up with only a digital one. This varies by airline and route, so check the specific policy rather than assuming your usual airline's rules apply.

Seat selection isn't required to fly, if you don't pay for a seat, you'll be assigned one for free at check-in, it just won't be a choice, random assignment sometimes means separated seating, though as a solo traveler that's rarely a real downside.

Name changes and date changes, if you book the wrong date or misspell your name, cost real money to fix on most budget fares, double-check every detail before confirming payment, these aren't the kind of booking where a quick phone call fixes a typo for free.