Budget Airline Hidden Fees to Check Before Booking
By FareLume Editorial Team · · 3 min read · Reviewed and updated: 27 August 2026
Budget airline fares exclude most of what full-service tickets include. Cabin bag limits, hold baggage, seat selection, check-in method and payment fees can all add cost, so price the ticket you'd actually fly before comparing.
Low-cost carriers are not dishonest, but they do sell a different product from what many travellers assume. The headline fare buys a seat and very little else, and budget airline hidden fees are simply the price of everything that used to be included. Knowing the list in advance lets you compare fairly.
Baggage
The biggest one by far. Policies differ between airlines and change regularly, so check the specific rules for your booking:
- Whether a full-size cabin bag is included or only a small underseat item.
- The size and weight limits, which are enforced more strictly at some airports.
- The cost of adding a cabin bag or a hold bag, per direction.
- Whether adding a bag at the airport costs considerably more than online.
Adding bags in advance is nearly always cheaper than at the gate.
Seat selection
If you are travelling alone and do not mind where you sit, skip it. If you are travelling with children or want to sit with a partner, budget for it, because unallocated seating on a full aircraft frequently splits groups.
Check-in and boarding passes
Most low-cost airlines require online check-in within a set window. Missing it can mean an airport check-in fee that costs more than the seat. Some still charge for printing a boarding pass at the airport. Check in as soon as the window opens and save the pass to your phone.
Payment and booking fees
Card surcharges have been restricted in some markets but not all, and administration fees still appear at the final step. Always read the final total, not the fare shown in search.
Changes, names and cancellations
Change fees on basic fares are typically high, and name corrections often cost as much as a change. If there is any doubt about who is travelling or when, factor that risk in before choosing the cheapest ticket.
Airport location
A low fare into a secondary airport an hour and a half from the city is a different proposition from one into the main airport. Include the transfer cost and time on both ends, particularly if your arrival is late at night when public transport may not run.
Onboard and extras
Food and drink are charged, priority boarding is charged, and travel insurance or car hire may be pre-selected at checkout. None of these are traps if you read the page, but they add up quickly when clicked through in a hurry.
The honest comparison method
Take your top two or three options and, for each, add: bags you need, seat selection if it matters, airport transfer at both ends, and any card fee. Compare those totals. Low-cost carriers still win plenty of these comparisons, and when they do, you can book with confidence rather than suspicion.
Related reading
The wider guide to avoiding overpayment covers the other habits that quietly inflate the cost of a trip.
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Fees to price before you compare
| Item | Why it catches people out |
|---|---|
| Cabin bag size | Smaller free allowance than most travellers expect |
| Hold baggage | Priced per bag, per leg, and rises closer to departure |
| Seat selection | Groups travelling together often can't sit together for free |
| Airport check-in | Some carriers charge if you don't check in online |
| Boarding pass printing | Occasionally required and chargeable |
| Payment method fees | Vary by card and market |
| Distant airports | Transfer cost and time can exceed the fare saving |
Fair-comparison checklist
- Add every fee you personally would pay.
- Include the airport transfer at both ends.
- Compare the resulting total against a full-service fare.
- Re-read the baggage rules on the airline's own site before booking.
Frequently asked questions
- What are the hidden fees on budget airlines?
- The common ones are cabin bag size limits, hold baggage charges, seat selection, airport check-in fees, payment method fees and transfers from more distant airports. None are secret, but all are excluded from the headline fare.
- Are budget airlines still cheaper after fees?
- Often yes for cabin-baggage-only travel, and often no once you add a hold bag and seat selection. The only way to know is to price the exact ticket you would fly.
- Can I avoid seat selection fees?
- Usually, by accepting a randomly allocated seat at check-in. If you must sit together as a group, budget for the charge.
- Do budget airlines charge for cabin bags?
- Many allow a small free personal item and charge for a larger cabin bag. Check the exact dimensions on the airline's site, because they differ between carriers.
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