Airlines That Charge the Most Hidden Fees

Frontier Airlines charges for carry-on luggage, checked bags, and seat selection, so study their fees carefully.

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Allegiant Air: Phone booking, carry-on luggage, and priority boarding cost extra.

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Ryanair: Ryanair, a discount airline in Europe, charges for airport check-in and boarding tickets.

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Wizz Air: The Hungarian low-cost airline charges for carry-on luggage, priority boarding, and large cabin bags.

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United Airlines: United's Basic Economy price class often charges for seat assignment and a full-sized carry-on luggage.

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American Airlines: American Airlines' Basic Economy pricing class has seat assignment and carry-on bag restrictions, which can cost extra.

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Delta Air Lines: Delta's Basic Economy tickets carry restrictions such no returns and seat assignment costs.

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Alaska Airlines charges extra for preferred seating and itinerary changes, but it doesn't have numerous hidden fees like some budget airlines.

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WOW air: Before its bankruptcy and closure, WOW air offered low base rates but charged for seat selection and carry-on bags.

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