iflix just gotten a whole lot better as you now can download your shows and watch them offline. This opens up the possibility of watching iflix on flights or while traveling to a place where reliable internet connection is non-existent.
At the moment, the offline viewing feature is available only on Android. A typical 30 minute TV series will take up around 150MB, while a 2 hour movie consumes about 800MB in its highest quality. Once selected, you can view all your queued offline shows under Menu > My Downloads. Each offline copy will carry a 7 day expiry period and do note that not all shows are eligible for offline viewing. After all, the feature is still in its early preview phase.
If you want to give iflix a try, you can watch it for free for 30 days on Android, iOS or on your desktop web browser. For more info, head over to iflix.com.