Airplane engine noise is a constant low-frequency drone that standard headphones can't block. Travel headphones need ANC specifically tuned for this frequency range.
The Bose QC Ultra is the gold standard for air travel. Its ANC is optimized for the constant, droning frequencies of airplane engines. It folds flat with a premium hard case that protects it in your carry-on.
The Sony WH-1000XM5 has an atmospheric pressure optimization feature that adjusts ANC for the lower air pressure in airplane cabins. Air pressure changes affect how ANC performs, and this feature compensates. Plus, the 3-minute quick charge giving 1 hour of playback is a lifesaver when you forgot to charge before the flight.
For in-flight entertainment, the Apple AirPods Max's Spatial Audio with head tracking creates a cinema-like experience when watching movies on an iPad. It's the heaviest and most expensive option, but the in-flight experience is unmatched.
Practical travel tips: bring a Bluetooth-to-3.5mm adapter for in-flight entertainment systems. Make sure your headphones have a wired backup option (USB-C to 3.5mm) in case the battery dies mid-flight.