For your situation, I would definitely suggest grabbing the Sony WH-1000XM4 Wireless Noise Canceling Headphones! Honestly, since you're traveling with just a carry-on, the fact that they fold up into that nice compact case is a TOTAL lifesaver. I mean, I'm still kinda new to the high-end audio scene, but looking at the specs, the XM4s still have that same 40mm driver and basically the same QN1 noise-canceling processor as the newer ones.

Plus, if you're looking at the budget side of things, you can usually find the XM4s for like $250 to $280 on sale, while the Sony WH-1000XM5 Wireless Noise Canceling Headphones are still stuck way up at $399. That’s a huge difference for your wallet! Ngl, I’ve tried both, and while the XM5 has better mics for calls in a terminal, that 'auto-optimizing' ANC can be a bit weird on planes... it like, tries to adjust every time you move your head? The XM4 lets you just blast the ANC at 100% which is sooo much better for blocking out those jet engines!!

Comfort-wise, they're both amazing but the XM4 is definitely not a 'vice' haha. Seriously, save that extra $120 and get the XM4. It fits better in a backpack and you arent really sacrificing much in terms of raw power. Good luck with the new job, hope the flights get easier! 👍

I totally agree about the folding design being a life-saver for travel, but I’d also consider the hardware reliability if you’re flying that often. Constant folding and unfolding can actually wear out the ribbon cables in the hinges over time. * Sony WH-1000XM4 Wireless Noise Canceling Headphones: Best for small bags, but those hinges are a bit of a weak spot for heavy use. Tbh, they can get "creaky" after a few months of airport runs.
* Sony WH-1000XM5 Wireless Noise Canceling Headphones: Way more durable since the "frictionless" slider has fewer points of failure. It feels much sturdier, even if it's a bit of a space hog.
* Sony WH-CH720N: If you want something lighter and more budget-friendly as a backup, these are great. They've got the V1 processor for solid ANC but a much simpler, robust build. The auto-ANC on the XM5 is a bit weird tho—it seems to struggle a bit with cabin pressure changes sometimes? Like, it recalibrates mid-flight which can be annoying. (I'm not 100% sure if that's a hardware limitation or just buggy firmware). If you want something that just stays consistent, the manual settings on the older tech are actually more reliable for me.

Check out the isolation graphs on Rtings! Honestly, I'd suggest the Sony WF-1000XM5 Truly Wireless Noise Canceling Earbuds—they basically match the over-ears' ANC performance without taking up any space.

I definitely agree with the point about the hinge fatigue, tbh. I have seen so many flagships from various brands fail right at that pivot point after a year of heavy commuting. Having tracked the market for a long time, it is clear that manufacturers are moving away from folding parts to increase the longevity of the internal wiring. In my own travel history, I have bounced between all the major players in the space. I used to swear by the leading American brand because their ergonomics were basically unbeatable, but I eventually moved to my current setup because the digital signal processing was just better at handling voices. I remember a particularly loud flight to London where the crying kid next to me was basically silenced by the tech I am using now, whereas my older gear would have let all that high-pitched noise leak right through.

• Most top-tier brands are now using AI to adjust the sound profile in real-time.
• Battery life has basically peaked at around 30 hours for the high-end sets.
• The industry is shifting toward a unibody design to minimize creaking and mechanical failure. It really comes down to whether you want the most compact kit or something that is built like a tank for the long haul, right? Tbh, after ten years of flying, I dont really mind the extra space a non-folding case takes if it means the internal ribbon cables arent going to snap on me mid-trip.

Just found this thread! Honestly, I have been through so many pairs of travel cans it is ridiculous. While Sony is usually the go-to, iirc some people actually prefer the Bose ecosystem for pure comfort during those long-haul flights. I think their clamping force is often a bit lighter, which might help with that vice feeling you mentioned. Not sure but I think I saw a breakdown on Head-Fi about how Sennheiser handles the low-frequency drone differently too. If you want some really deep data, you should definitely check out the frequency response charts on sites like AudioScienceReview or search for specific travel comparisons on YouTube. I think there are reviewers who specifically test these in simulated cabin noise environments. Sony is great, but looking at other brands might save your ears from getting too sweaty or feeling cramped. Just something to think about before you drop the cash!

100% agree