Think of a hand sanitizer.
Please note the hand luggage rules for sprays up to 100ml. Disinfectant wipes are also a good alternative on the go.
Please also think about the distance and, if possible, keep 1.5m to 2m distance to your fellow travelers.
Please check your airline's hand baggage rules in advance. Due to the current Corona situation, the airlines have changed their guidelines.
If possible, use contactless boarding at quick boarding gates or do an online check-in and you have your boarding card on your mobile phone (airline-dependent service).
Remember that only limited food and drink service can be offered on the aircraft. Therefore, take some food with you if necessary.
Find out in good time about the check-in and boarding times. These can differ significantly from the times before Corona. So plan more time before your departure.