Can I take carry-on luggage if baggage is not included in the ticket?
Yes, you can. Even if you booked a ticket without checked baggage, carry-on luggage is allowed in any case. Refer to the weight and dimensions of carry-on luggage specified in your itinerary and the airline's rules.
Remember that some items are not allowed in carry-on luggage. If you plan to carry something from a special list, but your ticket fare does not include checked baggage, you need to arrange for excess baggage in advance and still take a suitcase with you.
How much carry-on luggage can I take on a plane