Yes. You will have the option to add your frequent flyer / loyalty number when you enter your passenger details during your booking.
Add Before Travel
To add your frequent flyer details after your booking is confirmed, please contact the Customer Support team via chat or email at support@travala.com before your flight departure.
Add After Travel
To add your frequent flyer number after you have travelled, please contact the relevant carrier directly. Generally the airline will request your booking reference, which is located on your travel itinerary, and a copy of your boarding pass.