Should I bring a tablet?

Yes. It is the most effective way to manage expectations and keep them occupied for long stretches. Just ensure you have a durable, shock-proof case with a kickstand.

What if they get restless and start kicking the seat?

Acknowledge the restless energy. Take them to the back of the plane near the galley for a 5-minute stretch. Flight attendants are usually happy to let you stand there as long as you aren't blocking the service aisle.

Keeping Kids Entertained on Long Flights

The secret to a peaceful flight is a 'new-to-them' toy rotation and pre-downloaded offline content. Never rely on the airline's seatback entertainment to work, and keep 80% of your distractions hidden until the plane reaches cruising altitude.

The 'New-to-Them' Rule. Two weeks before the flight, go to a dollar store or browse clearance aisles for 5-7 small, inexpensive items (sticker books, fidget spinners, magnetic drawing boards). Wrap each item individually in cheap gift wrap. Only let them open one item per hour of the flight.
The Offline Tech Stack. Download at least 10 hours of content across Netflix, Disney+, and YouTube Kids. Confirm they are saved 'offline' while on your home Wi-Fi. Pack a set of child-safe volume-limiting wired headphones; Bluetooth pairing often fails on older seatback systems.
Snack Sequencing. Treat snacks as an activity. Pack individual containers of puffs, raisins, or dry cereal that take a long time to pick out one by one. Avoid high-sugar snacks that create a mid-flight crash and subsequent meltdown.
Comfort Essentials. Pack a sensory-friendly item from home, like a specific blanket or a favorite plush toy. The smell and texture provide a 'home base' for a child struggling with the pressure changes and new environment.

Should I bring a tablet?: Yes. It is the most effective way to manage expectations and keep them occupied for long stretches. Just ensure you have a durable, shock-proof case with a kickstand.
What if they get restless and start kicking the seat?: Acknowledge the restless energy. Take them to the back of the plane near the galley for a 5-minute stretch. Flight attendants are usually happy to let you stand there as long as you aren't blocking the service aisle.