Carry-on vs checked bag for a 10-day Sri Lanka trip, for Swiss travellers

For a 10-day Sri Lanka trip from Switzerland, the basic principle is straightforward: anything you genuinely cannot do without for a day or two should go in the carry-on, and everything else goes in the checked bag. Given the roughly 12-to-17-hour journey with at least one connection at a Gulf, Istanbul or European hub, there is a real, if modest, chance of a checked bag being delayed.

A sensible carry-on for this trip includes one full change of clothes, all medication in original packaging, chargers and any valuable electronics, travel documents including the printed or saved Electronic Travel Authorisation (ETA), and a light layer for the flight itself, since aircraft cabins run cooler than Sri Lanka's climate.

Checked and carry-on baggage allowances vary meaningfully by airline and fare class on the Zurich or Geneva to Colombo routing via a Gulf, Istanbul or European hub, so it is worth checking the specific allowance for your booked fare rather than assuming a standard figure. Some connecting itineraries also apply the more restrictive of two different airlines' policies if more than one carrier is involved across the journey.

It is generally worth erring on the side of packing lighter than the maximum allowance, both because a multi-stop road trip is easier with less luggage to load and unload at each hotel, and because most travellers end up bringing something back, whether tea, spices or a small souvenir.

This 10-day route covers a genuinely wide climate range within a single trip: warm and humid on the coast and through the Cultural Triangle, and noticeably cooler in the evenings around Nuwara Eliya, with Ella milder but still cool at night. That means the checked bag needs to hold both lightweight, breathable clothing for most of the trip and at least one warmer layer for the hill-country stretch around days 6 to 7.

Rather than packing a full winter layer, a fleece or a warm long-sleeved top, plus a light jacket, is generally enough for the hill country's cooler evenings, since this is closer to a mild Swiss autumn evening than anything approaching Alpine cold.

Because a private driver-guide handles all the road transfers across the ten days, luggage does not need to be dragged through crowded stations or onto local buses, which removes one of the usual reasons to pack minimally on a multi-stop trip. That said, lighter luggage still makes hotel check-ins, room changes every two to three nights and the Kandy-Ella train segment noticeably easier to manage.

Laundry is realistic partway through a 10-day trip, either through hotel laundry services or, less formally, at some guesthouses, which further reduces how much clothing actually needs to be packed for the full duration rather than repacked or re-worn.

Before departure, double-check that anything irreplaceable, travel documents, medication, chargers for essential electronics, and the confirmed ETA, is in the carry-on rather than the checked bag. It is also worth photographing the contents of the checked bag before departure, a small habit that makes any delayed-baggage claim considerably easier to file.

Lankan Stays & Trails advises Swiss travellers on this route to keep the checked bag reasonably light and to prioritise breathable, layerable clothing over volume, since the trip's climate range is better handled with a few adaptable pieces than a large wardrobe.