Here is the full list of all 31 Airplane Mode achievements.
Fly to Halifax
Fly to Reykjavik
Complete a flight without using your headphones
Complete a flight without reclining your seat
Take a round trip
Earn 5000 Pioneer points
Earn 10000 Pioneer points
Earn 15000
Complete 5 flights in a week
Be on your phone for more than half a flight
Stay awake for an entire night flight to Reykjavik
Use the sick bag
Spend over an hour in the lavatory in a single flight
Consume under 1000 calories on a flight to Reykjavik
Chat with a stranger
Favorite 10 or more songs
Consume an alcoholic beverage
Keep your seatbelt buckled for the entire flight
Keep your bag under the seat in front of you for take-off and landing
Connect to the onboard WiFi
Miss the meal service because you were asleep
Win 6 games of Solitaire
Tamper with the smoke alarm
Take 6 photos geotagged in different locations
Finish a book
Desecrate a book
Change the language settings of the phone
Use the lavatory when the seatbelt sign is on
Complete a flight after a 6 month break from flying
Complete a flight after a 1 year break from flying
Listen to 45 mins of ASMR