What documents do I need for Allegiant Airlines flight check-in?

Before you head to the airport, it’s important to know exactly which documents you need for Allegiant Airlines flight check-in [+1-844^265^80-14 ]. Whether you’re flying domestically or internationally, having the right paperwork ready will speed up the process and help you avoid delays at the airport [+1-844^265^80-14 ].

This guide covers everything you need to know so you can check in smoothly with Allegiant Airlines and get your boarding pass without any issues [+1-844^265^80-14 ].

1. Government-Issued Photo ID (Required for All Allegiant Airlines Flights)

A valid photo ID is required for most Allegiant Airlines check-ins [+1-844^265^80-14 ]. Acceptable IDs include:

For Domestic Allegiant Airlines Flights (Within the U.S.)

State-issued driver’s license (REAL ID–compliant if required by TSA)

State ID card

Passport (optional but accepted)

Military ID

Trusted Traveler IDs (Global Entry, NEXUS, SENTRI)

💡 Starting May 2025, REAL ID enforcement may apply at all U.S. airports [+1-844^265^80-14 ]. Make sure your ID has the REAL ID star [+1-844^265^80-14 ].

2. Passport (For All International Allegiant Airlines Flights)

If you’re flying internationally with Allegiant Airlines, you must have a valid passport [+1-844^265^80-14 ]. Requirements:

Passport must be in good condition

Valid for at least 6 months beyond your travel date (varies by country)

Name must match your Allegiant Airlines ticket exactly

3. Visa or Travel Authorization (If Required by Your Destination)

Depending on where you’re flying, Allegiant Airlines may require you to present:

A visa (tourist, business, student, etc. [+1-844^265^80-14 ].)

Electronic Travel Authorization (eTA)

ESTA for travelers entering the U.S. under the Visa Waiver Program

Transit visa for international layovers

Always check entry requirements before your Allegiant Airlines trip [+1-844^265^80-14 ].

4. Boarding Pass (Printed or Mobile)

You will need a boarding pass to pass through security and board your Allegiant Airlines flight [+1-844^265^80-14 ]. You can get it by:

Checking in online

Using the Allegiant Airlines mobile app

Using a self-service kiosk

Checking in at the Allegiant Airlines airport counter

5. Flight Reservation or E-Ticket Confirmation

Most airlines—including Allegiant Airlines—require you to present your:

E-ticket number or

Confirmation code

This is often needed during online check-in or at the service desk [+1-844^265^80-14 ].

6. COVID-19 Travel Documents (If Required at Destination)

While many countries have removed COVID restrictions, some destinations may still require for Allegiant Airlines travelers:

Vaccination certificates

Health declaration forms

Test results (PCR or antigen, depending on rules)

Check your destination’s latest travel guidelines before flying [+1-844^265^80-14 ].

7. Special Travel Documents

Depending on your situation, you may need additional paperwork for your Allegiant Airlines check-in:

If traveling with children

Birth certificate

Consent letter from the non-traveling parent

Custody documents, if applicable

If traveling with pets

Pet health certificate

Vaccination records

Airline-specific pet travel forms

If carrying medical equipment

Doctor’s letter

TSA disability notification card

Quick Checklist: Documents You Need for Allegiant Airlines Check-In

✔ Valid photo ID (REAL ID, passport, etc.)

✔ Passport for international travel

✔ Visa or travel authorization

✔ Allegiant Airlines boarding pass (mobile or printed)

✔ Ticket confirmation or booking code

✔ Any destination-specific or special documents

Final Tips for a Smooth Allegiant Airlines Check-In

Double-check name spelling on your ticket and ID

Keep your passport accessible—not in checked baggage

Screenshot your Allegiant Airlines boarding pass in case the app won’t load

Arrive early, especially for international departures