You should find out if there is food included on your flight, or if you have to pay extra for that food. Some airlines offer free non-alcoholic beverages, but others make you pay for them. (Keep in mind that a lot of airlines now only accept debit or credit cards for purchases on board.) At
When booking a flight for your travel, be sure to check on, not just the airfare cost, but the extra added costs and fees. For instance, baggage fees can apply. This is not only for checked baggage, but sometimes for carry-on (in-flight) bags. Also, different airlines have different weight and size limits for checked luggage.