Can I see what ancillary services like seat selections and baggage are available for a flight before my customer decides to buy it?

Yes, you can see seat maps, baggage allowances and other add-ons through the flight API before your customer completes their purchase. This means they know exactly what they are getting and what extras will cost them before they commit to the booking. You can show these options right on your portal so your customers can choose what they want as part of the booking flow, or decide they do not need them and keep the price down.

The exact add-ons that show up depend on what the airline makes available through the system. Some airlines publish their full range of ancillary services, while others keep certain options hidden until after the booking is done. You will see what each airline offers when you pull the search results, so you can see the differences between carriers and explain them to your customers.

You can display this information however makes sense for your business. Some travel portals show it all upfront, while others let customers add extras at checkout. The API gives you the data, so you have the flexibility to design the experience your customers prefer. Check what your flight API documentation says about the specific ancillary fields available from your suppliers so you know what information you can count on to always be there.