I bought my daughter to Britain when she was 5 months old and temperature was around that as it was late autumn.

Does your baby sleep in an air conditioned room?

Stuff to watch out for?

-keep your baby layered.
-Protect from strong winds as it is the windchill that is most harmful.
-Keep your baby well moisturized as the air is dry and damaging to their skin.
-If in MY the feed is every 3 hours, try feeding every 2 hours instead as the cold will cause them to go hungry a bit sooner.

On flight :-

1) Try to time a breastfeed (direct latch if possible) when the aircraft taxis for take off, this will minimize the pressure on the ears. This is the absolute most important step to take and will make a difference between a non-stop crying baby vs a baby that sleeps through much of the flight.

2) Baby has any blocked nose issues?? Clear it before boarding the flight with some nose drops and a nasal aspirator. Otherwise the breast feed at take off will be useless. Supposedly a blocked nose will make the pressure at the ears even more painful.

3) The aisle of the plane is your friend..... keep pacing the aisle if your baby is the type that cannot be stationary for too long.

4) A breast feed at time of descending will help a lot also as per #1.

5) Download a video or two of a nursery rhyme or the infamous Baby Shark song. It will help when all else fails.

You're welcome.

I should also have added, both the parents should keep a very cool head.

Else....................... the baby will be fine  you 2 won't be when you get off the flight