Popular Articles

  1. Website Feedback

    Last Updated: 06/22/2017
    To contact us for customer service, please visit our contact page .  Please leave your suggestions below and we will use your feedback to help improve our FAQs.  ...

  2. How do I use a Voucher or ETC (Electronic Travel Certificate)?

    Last Updated: 02/14/2023 in My Booking Fares & Payment
    To use a voucher, simply book your new flight on FlyFrontier.com. Once you reach the payment screen, select " Frontier Voucher " and enter the voucher number. Please Note Vouchers are not redeemable for cash. Vouchers are valid for 90 d...

  3. Will I be charged a fee for bringing a stroller?

    Last Updated: 02/19/2020 in Traveling with Children or Pets
    No, you will not be charged a fee for checking a stroller, or a car seat. By the way, you can use the stroller in the airport, and the gate agent will check it at the gate.  The stroller will be returned to you by our ramp agents at your destinatio...

  4. Do I have to purchase a seat assignment?

    Last Updated: 07/26/2024 in Bags and Seats Bags & Seats General Info
    Our  Basic  Fares do   not  include a seat assignment  of your choice .  Y ou may  purchase  a  seat    assignment  at the time of booking ,  after booking , or dur...

  5. How do I add my Known Traveler Number (KTN) to my reservation?

    Last Updated: 03/15/2023 in Airport Information
    Enter your Known Traveler Number (KTN) when you book your flight on flyfrontier.com. This can be done on the Passenger Information page during the booking process.  Forgot to add your Known Traveler Number (KTN) when you booked?  No wo...

  6. Change Flight Time or Date

    Last Updated: 01/16/2023 in Change & Cancel Policies
    You can make changes to your departure time or date on our website or our app.  To make changes on the website go  to “ My Trips /Check-In ”. Access your booking by entering  your “ Last Name ” and “ Confirmation Code ”, then press ...

  7. What is the difference between a personal item and a carry-on?

    Last Updated: 10/27/2022 in Bags and Seats Bags & Seats General Info
    Personal item : It cannot be larger than 14"H, 18"W, 8"D. These are usually purses, totes, computer bags, briefcases, small backpacks and diaper bags! This b ag must be no larger than 14”X18”x8”. Carry-on bag : Your carry-on bag must be able ...

  8. I am experiencing a website or app error, what should I do?

    Last Updated: 03/14/2023 in Contact Us
    Website or mobile app technical problems are frustrating.    If you are on the website ( flyfrontier.com ) try the following:   Make sure you are connected to the internet   Clear the website cache & browser history   Restart t...

  9. What is included in my fare?

    Last Updated: 02/06/2024 in My Booking Fares & Payment
    Our fares include: 1 Personal Item Change or Cancel option (will require a fee + fare difference) Same Day Confirmed Flight option (will require a fee ) Ticket Transfer option (might require a fee + fare difference) Interested in addin...

  10. May I bring medicine and/or medical devices on the plane?

    Last Updated: 10/02/2019 in Special Services
    Medicines should be kept in your carry-on bag and not in your checked luggage. Medical devices can be kept in your checked luggage or in your carry-on, however they must not exceed allowable carry-on dimensions. Refer to www.tsa.gov for permitte...