Prepare while you still have a connection. Open each game you want to use, wait for the message confirming that it is ready for offline play, and make a move. For a guide in another language, visit that language page too. Merely opening the homepage does not download every game or language. Keep the same browser and device for the flight.
Test the exact route before leaving. Turn off your connection, reload the game and make another move. If it does not load, reconnect and prepare it again. Private browsing, low device storage and browser cleanup can remove cached files or local saves. An offline-ready message describes this browser’s current preparation; it is not a promise that the browser will keep data forever.
For a small tray table, try Sudoku with notes, Solitaire with click-to-move, or Hidden Objects with zoom and picture clues. Jigsaw Puzzles has a separate piece tray, so it works best when you have room to pan. These games have no forced countdown. Choose a shorter puzzle or save midway if the crew needs the table cleared.
Keep sound off and lower the screen brightness to a comfortable level. Basketball and Soccer are brief alternatives, but pause before attending to announcements. Piano can be played with visual rhythm cues while muted. Follow airline instructions for device use. At the end of the flight, your progress remains on this device; clearing browser data also clears those local records.