Forntier Airline 13 Digit Ticket Number Location: Everything You Need to Know

Last Updated on July 27, 2026 by Daniel Globe

If you’re looking for a Frontier Airlines 13-digit ticket number, there is an important distinction to know first: Frontier operates as a ticketless airline. For normal Frontier reservations, the number you need is usually your 6-character confirmation code, not a traditional 13-digit e-ticket number. You can find that code in your confirmation email, Frontier account, boarding pass, or the My Trips section of the Frontier app.

Does Frontier Have a 13-Digit Ticket Number?

For ordinary passenger bookings, you should not expect to receive a conventional Frontier 13-digit e-ticket number. Frontier’s official travel-agent documentation describes the airline as completely ticketless. Instead, Frontier’s customer-facing reservation tools use your last name and 6-character confirmation code.

That confirmation code is the key number for retrieving your trip, checking in, viewing your itinerary or receipt, changing flights, adding bags or seats, and canceling an eligible reservation. Frontier also uses the original confirmation code when a qualifying unused booking becomes a flight credit.

If you’re trying to prove what you paid, look for your purchase receipt rather than an e-ticket document. Frontier lets you retrieve or resend the receipt and itinerary from its website or mobile app.

Frontier 13-Digit Reference vs Confirmation Code

A Frontier confirmation code is a 6-character combination of letters and numbers used to retrieve a passenger reservation. A 13-digit-looking reference may occasionally appear in a travel agency’s reservation system, but Frontier says that does not make it a passenger ticket number.

Why You May See a 13-Digit 422 Number

Some travel-agent Global Distribution System records can display a Frontier invoice or reference number beginning with 422. It can look like an airline ticket number because of its length and formatting.

However, Frontier specifically says these numbers are for agency internal processing, have no relationship to the value of the ticketless transaction, and cannot be retrieved as ticket numbers through Frontier’s revenue-accounting system. In other words, seeing a 422 reference does not mean you need it to check in or manage your flight.

For normal Frontier self-service, the important reservation identifier is your 6-character confirmation code — not a 13-digit e-ticket number.

Confirmation Code Basics

Your Frontier confirmation code contains six letters and numbers, such as FLY123. Frontier uses it with your last name to retrieve your booking through Manage Trip, the FlyFrontier app, and supported airport self-service systems.

You can usually find the code in your booking confirmation email. It may also appear in your Frontier Miles account under upcoming trips and on your boarding pass. If you booked through a third party, make sure you’re using Frontier’s code rather than only the agency’s reference.

Known Traveler Number vs Confirmation Code

Don’t confuse your confirmation code with your Known Traveler Number (KTN), also called a PASS ID for certain Trusted Traveler Programs. The KTN is used for programs such as TSA PreCheck and is separate from your Frontier reservation identifier.

You can add or update a KTN in your traveler details through Frontier’s Manage Trip tools. It does not replace your 6-character confirmation code.

Check Your Email and Purchase Receipt

Start with the email address used when the Frontier reservation was booked. Frontier normally sends a confirmation shortly after booking, and that message contains the 6-character confirmation code you need.

Search for messages from Frontier and check your spam or junk folder if nothing appears in your main inbox. The purchase receipt and itinerary can also be retrieved again through Frontier’s website or mobile app.

Check Your Email Inbox

Your Frontier confirmation code should appear in the confirmation email sent after booking. To find it quickly:

• Search your inbox for “Frontier,” “confirmation,” or your travel dates.
• Check spam, promotions, and junk folders.
• Look for a 6-character combination of letters and numbers.
• If you booked through a third party, distinguish the agency reference from the Frontier confirmation code.

Once you have Frontier’s code, you can pair it with your last name to retrieve the booking online.

Find Your Frontier Purchase Receipt

Because Frontier operates as a ticketless airline, look for a purchase receipt or itinerary rather than a traditional e-ticket document containing a passenger ticket number.

Frontier’s current receipt instructions give you two self-service options.

On flyfrontier.com:

1. Open Manage Trip.
2. Enter your last name and confirmation code.
3. Select Print Confirmation to view or print the information.
4. Or choose Resend Email Itinerary.

In the FlyFrontier app:

1. Open My Trips.
2. Retrieve the reservation with your last name and confirmation code if necessary.
3. Tap Manage My Booking.
4. Select View Receipt or Resend Confirmation Email.

Retrieve Booking Details in My Trip

Go to Frontier’s Manage Trip page or open My Trips in the Frontier app. Enter your last name and 6-character confirmation code to retrieve the reservation.

From there, depending on your booking, you can review your itinerary, view payment information, add bags or seats, change travel details, cancel an eligible reservation, and check in when the check-in window opens.

• Use the Frontier confirmation code, not an agency-only booking reference.
• Double-check the spelling of the passenger’s last name.
• Use Frontier’s resend-itinerary option if you need another copy of the confirmation.
• Sign in to your Frontier Miles account if the trip is already linked to your profile.

Find Your Confirmation Code and Receipt in the App

Open the FlyFrontier app and go to My Trips. If the reservation is already connected to your account, it may appear with your upcoming travel. Otherwise, retrieve it using your last name and 6-character confirmation code.

Once the booking is open, select Manage My Booking. Frontier’s current app instructions allow you to view the receipt or resend your confirmation email from there. After check-in, your mobile boarding pass is also available through My Trips.

You should not expect the app to provide a conventional Frontier 13-digit e-ticket number because Frontier operates using a ticketless reservation system.

What to Do If You Can’t Find Your Frontier Confirmation Code

If you’re searching for a 13-digit Frontier ticket number, stop there first: you normally need the 6-character confirmation code instead. If that code is missing, work through these steps:

1. Search your email. Look for your Frontier confirmation and check spam or junk folders.
2. Check your Frontier account. Upcoming trips may appear in your Frontier Miles profile.
3. Check the app. Open My Trips if the reservation was previously linked to your profile.
4. Check a third-party booking confirmation. Look specifically for a separate Frontier confirmation code.
5. Ask the booking agency. If an agency made the reservation and only supplied its own reference, ask it for Frontier’s confirmation code.
6. Contact Frontier. Use Frontier’s phone, live chat, or WhatsApp support if you still cannot retrieve the booking.

Have the passenger name, travel dates, route, and booking email available when contacting support so the agent can identify the correct reservation.

Check In With Your Confirmation Code

You do not need a Frontier 13-digit ticket number to check in. Frontier’s current check-in guidance says check-in opens 24 hours before departure.

Use the Frontier app or the airline’s reservation tools to retrieve your trip. Your last name and 6-character confirmation code are the important details when a reservation must be looked up manually.

Frontier currently closes flight and bag check-in 60 minutes before departure. The airline says boarding normally begins about 45 minutes before departure and ends 20 minutes before departure, so do not wait until the check-in cutoff to arrive at the airport.

After checking in, save the mobile boarding pass in the Frontier app. If you’re not checking a bag and no other counter service is required, a valid mobile boarding pass can let you proceed toward security without first printing one at the airport.

Use Your Confirmation Code to Change or Cancel

When changing or canceling a Frontier reservation, use your last name and 6-character confirmation code to open the booking on Frontier’s website or app. There is no need to locate a separate 13-digit passenger ticket number first.

Your original Frontier confirmation code can remain important even after cancellation because Frontier uses that same six-character code for eligible flight credits.

• Open My Trips or Manage Trip.
• Enter the passenger’s last name and Frontier confirmation code.
• Select the change or cancellation option available for the reservation.
• Review any fare difference, change fee, or cancellation fee before confirming.
• Keep the original confirmation code if the cancellation produces a Frontier flight credit.

Contact Frontier Customer Service for Help

If you cannot locate the correct Frontier confirmation code or retrieve your reservation, Frontier’s current customer-service information says agents are available 24/7 through phone, live chat, and WhatsApp.

For routine reservation retrieval, start with Frontier’s website or app because those tools let you view your itinerary and receipt without waiting for an agent.

Frequently Asked Questions

Where do I find my Frontier ticket number?

Frontier operates as a ticketless airline, so most passengers do not have a traditional Frontier 13-digit e-ticket number to find. Look for your 6-character Frontier confirmation code instead. It appears in your confirmation email and can also be associated with trips in your Frontier account, app, or boarding pass.

How do I find my 6-character Frontier confirmation code?

Check the booking confirmation Frontier sent to your email address, including spam or junk folders. If you have a Frontier Miles account, check your upcoming trips. If a third party booked the flight, look for a separate Frontier confirmation code or ask the booking agency for it.

What is the 13-digit airline ticket number shown in my Frontier agency booking?

If a travel-agent record shows a 13-digit-looking Frontier reference beginning with 422, Frontier says it is an invoice or reference number used for agency processing. It is not a passenger ticket number and is not the code you normally use to retrieve a Frontier booking.

Can I check in without a Frontier ticket number?

Yes. Frontier’s ticketless reservation system does not require you to locate a conventional 13-digit e-ticket number first. Check-in opens 24 hours before departure, and Frontier’s reservation tools use your booking information, including your 6-character confirmation code and last name when the trip must be retrieved.

What is the 3-1-1 rule on Frontier?

This is a TSA security rule rather than a Frontier-specific ticket rule. For standard carry-on liquids, aerosols, gels, creams, and pastes, containers are generally limited to 3.4 ounces (100 milliliters) each and must fit in one quart-sized bag per passenger. TSA provides exceptions for items such as medically necessary liquids, breast milk, formula, and certain baby or toddler foods.

Conclusion

If you’ve been searching for a Frontier 13-digit ticket number, the key takeaway is that Frontier operates as a ticketless airline. For normal passenger self-service, your 6-character Frontier confirmation code is the identifier that matters.

Keep that code with your itinerary and purchase receipt. You can use it with your last name to retrieve your booking, check in, make changes, cancel an eligible trip, and access a qualifying Frontier flight credit. If a travel-agent record shows a 422 reference, don’t mistake it for the confirmation code you need on Frontier’s website.

Sources

1. Frontier Airlines — Travel Agents — confirms Frontier’s ticketless system and explains 422 invoice/reference numbers.
2. Frontier Airlines — Find Your Confirmation Code — confirms the 6-character code and where travelers can find it.
3. Frontier Airlines — Purchase Receipt and Itinerary — provides current website and app receipt-retrieval steps.
4. Frontier Airlines — Flight Check-In — confirms the current check-in window and airport cutoff times.
5. Frontier Airlines — Cancel a Reservation — provides current cancellation fees, credits, and exceptions.
6. Transportation Security Administration — TSA Travel Tips — confirms the federal 3-1-1 liquids rule.