Airlines are not legally required to provide refunds for cancelled flights, they only have to offer the option of a voucher or rescheduling.

This can come as a surprise to many passengers.

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The amount of the refund or credit you receive often depends on when you cancel your flight.

The closer to the departure date, the less you may get back.

Flights cancelled by the airline, due to things like weather or mechanical issues, typically result in a full refund.

But flights cancelled by the passenger face stricter policies.

Budget airlines tend to have the strictest cancellation policies, with high fees and limited refunds.

Legacy carriers are often more flexible, especially for elite-status passengers.

Many airlines now charge "change fees" just to modify your itinerary, even if you don't cancel outright.

These can range from $75 to $300 per ticket.

Some airlines, like Southwest, have eliminated change fees entirely.

This makes their cancellation policies more passenger-friendly than competitors.

Purchasing travel insurance can help recoup some costs if you need to cancel your flight, but policies have exclusions and limits you must understand.

Airlines may waive cancellation fees in certain situations, like major weather events or if you've experienced a death in the family.

But you typically have to call and plead your case.

Paying for your flight with a credit card that offers trip protection can also help offset cancellation fees in some cases, depending on the card's terms.

Frequent flyer elite status sometimes comes with more flexibility on changes and cancellations, including waived fees.

This is a perk of loyalty programs.

The rise of "basic economy" fares has made cancellation policies even stricter, as these tickets often exclude changes or refunds entirely.

Airline consolidation has reduced competition, allowing carriers to tighten cancellation rules and fees over time with less passenger backlash.

Domestic US flights have seen more flexibility on changes and cancellations compared to international routes, where policies tend to be more rigid.

Airlines use complex algorithms to determine cancellation fees, factoring in variables like fare class, time of booking, and availability of seats on other flights.

Cancelling a flight may trigger additional fees you weren't expecting, like baggage fees or seat selection charges that you'll forfeit.

The Department of Transportation has rules around when airlines must provide refunds, but enforcement can be challenging for individual passengers.

Airline call centers are often overwhelmed during periods of mass flight cancellations, making it difficult for passengers to get prompt assistance.

Some airlines offer the option to cancel a flight for a full refund within 24 hours of booking, providing a brief window of flexibility.

Pandemic-era policies saw many airlines become more lenient on changes and cancellations, but these passenger-friendly measures have started to fade.

Navigating airline cancellation policies requires diligence, as rules can vary widely between carriers and even between different fare classes on the same airline.