10 Hidden Fees Airlines Don’t Want You to Know About

Robin - November 2, 2025

Booking a flight may seem straightforward, but the price you see is rarely what you’ll actually pay. Airlines have become experts at boosting profits through a maze of hidden fees that often surprise travelers at every step. From seat selection to baggage and even basic amenities, these extra charges can quickly add up. Understanding these fees is crucial for budgeting your trip and avoiding unpleasant surprises.

1. Checked Bag Fees

1. Checked Bag Fees
Travelers line up at the airport check-in counter, weighing their luggage and discussing unexpected baggage fees with staff. | Generated by Google Gemini

Most airlines now charge passengers a separate fee for each checked bag, and these charges can apply per bag and per flight segment. The cost varies widely depending on the carrier and your route, with some airlines charging more for international flights or additional bags. While Southwest offers two free checked bags, most major U.S. carriers like American, Delta, and United charge $30-$40 for the first bag. These fees can quickly add up, especially for families or longer trips. For more insights, see NPR’s analysis of baggage fees.

2. Carry-On Bag Charges

2. Carry-On Bag Charges
Budget airlines now charge $35-$65 for carry-on bags, surprising travelers accustomed to free allowances. | Generated by Google Gemini

In addition to checked baggage fees, several budget airlines like Spirit and Frontier have introduced charges for carry-on bags. This means travelers must pay extra for bringing a bag into the cabin, with fees often ranging from $35 to $65 each way, depending on when you pay and the airline’s policy. This practice is expanding, with more airlines experimenting with similar fees to boost revenue. These costs can catch travelers off guard, especially those used to complimentary carry-ons. For details, see USA Today’s rundown on carry-on bag fees.

3. Seat Selection Fees

3. Seat Selection Fees
A detailed seat map highlights airplane seats with extra legroom, helping travelers choose the most comfortable spots onboard. | Generated by Google Gemini

Airlines increasingly charge passengers for the privilege of choosing a standard seat in advance. While selecting an aisle or window used to be free, many carriers now add fees that can range from $10 to $70, with higher prices for extra legroom or seats near the front. Families traveling together may have to pay to avoid being separated. Approaches vary: Southwest still offers open seating, but American, Delta, and United typically charge for advance seat assignments. Learn more about how these fees add up in this CNBC article.

4. In-Flight Meal and Snack Fees

4. In-Flight Meal and Snack Fees
Airline passengers now pay for most in-flight snacks and meals, impacting travel budgets. | Generated by Google Gemini

The days of complimentary meals on most domestic flights are over, with airlines now charging passengers for snacks, beverages, and even full meals. Prices for in-flight food can range from $3 for a snack pack to $10 or more for a sandwich or salad. Even some international routes, once known for free hot meals, now offer only limited complimentary options, with premium choices available for a fee. This shift means that passengers have to budget for food on longer flights. For more examples, see The Points Guy’s guide to in-flight food costs.

5. Change and Cancellation Fees

5. Change and Cancellation Fees
A frustrated traveler speaks with an airline customer service agent at the counter after a sudden flight cancellation. | Generated by Google Gemini

Altering or canceling your flight can lead to significant charges, particularly if you purchased a basic economy ticket. While many airlines suspended change fees during the pandemic, hidden exceptions and restrictions still exist, especially for lower fare classes or international trips. Some carriers now offer more flexible policies, but it’s crucial to read the fine print—certain tickets remain nonrefundable or incur penalties up to $200 or more. Always check your fare’s terms before booking. For a detailed breakdown of current policies, consult Forbes’ overview of airline change fees.

6. Basic Economy Restrictions

6. Basic Economy Restrictions
A simple boarding pass marked “Basic Economy” rests on a tray table, highlighting a no-frills airline experience. | Generated by Google Gemini

Basic economy fares attract travelers with their low upfront prices, but these tickets come bundled with a host of restrictions. Passengers may be unable to select seats in advance, bring full-size carry-ons, or board early without paying extra fees. Policies differ among airlines: Delta allows a carry-on, while United and American often restrict travelers to a single personal item. These limitations can force passengers to pay additional charges for even the most basic comforts. Understanding these hidden costs is crucial before booking. For further details, see NerdWallet’s breakdown of basic economy limitations.

7. Priority Boarding Fees

7. Priority Boarding Fees
Priority boarding offers early access and overhead bin space—for a fee; evaluate if the cost is worthwhile. | Generated by Google Gemini

Priority boarding is marketed as a way to secure overhead bin space and a less stressful boarding experience, but airlines now often charge $10 to $50 for this privilege. Sometimes, it’s bundled with perks like extra legroom or preferred seating, adding to the total cost. Frequent travelers, families, or those with tight connections may benefit most, but for many, the fee is more about convenience than necessity. Weigh the benefits before paying extra. To learn more about when priority boarding is worthwhile, read Travel + Leisure’s review of priority boarding.

8. Reservation Change Assistance Fees

8. Reservation Change Assistance Fees
A friendly travel agent assists a customer with a phone booking at a busy customer service desk. | Generated by Google Gemini

Some airlines impose extra fees if you book or modify a reservation by phone or in person instead of using their website. These assistance fees can range from $10 to $50, depending on the carrier. Major airlines like American and Delta often charge for this personal service, while low-cost carriers may have even stricter policies. Travelers can usually avoid these charges by managing bookings online, but those needing special assistance or complex changes may have no choice. For more on how these fees are structured, see The Wall Street Journal’s report on airline booking fees.

9. Credit Card Surcharge Fees

9. Credit Card Surcharge Fees
A credit card is being used to complete a flight booking on an airline website, with a detailed fee receipt displayed. | Generated by Google Gemini

Many travelers are surprised to find that some airlines, particularly international and low-cost carriers outside the U.S., tack on credit card surcharges when booking flights. These fees are especially common in Europe and Australia, where airlines may charge 1-3% of the ticket price for using a credit card. While U.S. airlines typically absorb this cost, it’s wise to check payment policies when flying abroad. Always review the final fare breakdown before purchase to avoid unexpected charges. For more details, see BBC’s explainer on card surcharges.

10. Unaccompanied Minor Fees

10. Unaccompanied Minor Fees
A smiling airline staff member guides an unaccompanied child through the bustling airport terminal, ensuring a safe journey. | Generated by Google Gemini

Parents sending children to fly alone are often required to pay unaccompanied minor fees, which can range from $50 to $150 each way depending on the airline and route. These fees typically cover supervision by airline staff, priority boarding, and assistance during connections, but services vary. Some carriers require this service for children under 15, while others set the age minimum at 12. Policies also differ regarding international flights and sibling discounts. To understand the specific rules and costs, consult the U.S. Department of Transportation’s unaccompanied minor guidance.

Conclusion

Conclusion
A printed airfare receipt sits beside a notepad, highlighting savvy budget travel planning and successful fee avoidance strategies. | Generated by Google Gemini

Hidden airline fees can significantly inflate the cost of travel, making it crucial for passengers to read the fine print and understand each carrier’s policies before booking. By researching potential extra charges—from baggage to booking assistance—travelers can budget more accurately and avoid last-minute surprises at the airport. Take the time to compare airlines, review official resources, and plan accordingly. For more tips on minimizing air travel costs, check out this Consumer Reports guide to avoiding airline fees.

Disclaimer

Disclaimer
Consult airlines and official sources for the latest travel fee policies and important updates. | Generated by Google Gemini

This article is for informational purposes only and does not constitute financial advice. Travelers should consult airlines and official sources for the most current fee policies and updates.

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