Allegiant Airlines Manage Booking: Online Trip Management Guide

Allegiant Air allows travelers to view itineraries, change flight dates, purchase seats, add baggage, and cancel reservations online through its self-service Manage Travel portal. Accessing your itinerary online lets you modify eligible travel details directly without waiting for a customer service agent.

Editorial Notice: FareWander is an independent travel information guide and is not affiliated with Allegiant Air. Allegiant controls all reservation records, ticketing rules, and fee assessments. All modifications, seat purchases, baggage additions, and cancellations must be finalized through Allegiant’s official website (allegiantair.com) or the official Allegiant mobile app.

Manage Travel vs. Online Check-In

Manage Travel and Online Check-In serve separate functions during your travel timeline.

If you are traveling within the next 24 hours and your itinerary is already finalized, consult our detailed Allegiant check-in process to complete your departure steps.

How to Access Your Allegiant Reservation

Allegiant offers multiple methods to locate and open an existing reservation online. You do not need to register for an account to retrieve a booking.

Supported lookup methods include:

• Confirmation Code + Name: Enter the passenger's first name, last name, and the 6-character alphanumeric confirmation code found in the booking receipt.
• Payment Card Information: Enter the passenger's name, departure date, and the last 4 digits of the payment card used at checkout.
• Allegiant Account Login: If the trip was booked while logged into an Allegiant profile, sign in using your registered email address and password to view all associated trips.

What Can You Do in Allegiant Manage Travel?

The Manage Travel dashboard provides access to primary reservation details and optional travel services.

How to Manage an Allegiant Booking Online

Follow these steps to access and update your travel details:

1. Go to Allegiant's official website (allegiantair.com).
2. Select the Manage Travel tab located on the homepage navigation menu.
3. Enter your reservation details using your confirmation code and passenger name, or use the card lookup method.
4. Open the Trip Summary to view your flight segments, passenger roster, and purchased services.
5. Choose the specific action you need (such as changing flights, adding bags, or updating seats).
6. Review the itemized cost breakdown, which details any fare difference, change fee, or credit balance before you confirm.
7. Submit payment for any additional balance and save your updated confirmation receipt.

How to Change an Allegiant Flight

You can modify an eligible Allegiant flight online, but eligibility depends on your booking type, purchase timing, seat availability, and whether you purchased Trip Flex. Standard fares cannot be changed online unconditionally.

To change a flight:

1. Retrieve your booking in Manage Travel.
2. Select the flight segment you wish to update.
3. Search for alternative travel dates or eligible destinations.
4. Select your new flight from the available options.
5. Review the fare calculation. If the new flight costs more than your original fare, you must pay the difference. If the new flight is less expensive, any remaining balance is handled based on applicable fare rules and Trip Flex terms.
6. Complete the checkout process to secure your new itinerary.

Always review the final payment screen carefully before confirming. Availability fluctuates in real time, and prices displayed during the search are not guaranteed until the checkout step is finalized.

Allegiant Flight Change Fees

Allegiant’s standard fee structure applies to flight modifications when Trip Flex is not part of the ticket:

• Fee Amount: Without Trip Flex, changes are subject to a fee of $25 per person, per segment.
• Understanding Segments: A segment generally refers to one flight from one departure airport to one arrival airport. For a round-trip ticket involving two passengers, changing both directions involves four passenger segments.
• Fare Increases: In addition to the $25 per person, per segment fee, you must pay any increase in airfare between the original ticket and the new flight.

The 7-Day Change and Cancellation Rule

Timing is critical when modifying a standard Allegiant booking. Under standard carrier terms, passenger-initiated changes and cancellations must generally be completed at least 7 days (168 hours) before scheduled departure.

If you did not purchase Trip Flex:

• Changes or cancellations requested at least 7 days before departure allow you to receive an Allegiant travel credit voucher, minus the $25 per person, per segment fee.
• Changes or cancellations attempted within 7 days of departure are not eligible for travel credit, resulting in the forfeiture of the fare and associated fees.

Exceptions apply only if you purchased Trip Flex at the time of booking or if your flight experiences an airline-initiated cancellation or significant schedule change.

What Is Allegiant Trip Flex?

Trip Flex is an optional service product that provides flexibility for flight modifications and cancellations.

Key Trip Flex rules:

• Purchase Timing: Trip Flex can only be purchased during initial booking. It cannot normally be added to an existing reservation later.
• Fee Waiver: It permits a one-time change or cancellation without standard change or cancellation fees.
• Fare Differences Apply: Trip Flex waives administrative fees, but you must still pay any applicable fare difference if your new flight is more expensive.
• Timing Cutoffs:
  • Flight-only bookings: Modifications or cancellations must be completed at least 1 hour before scheduled departure.
  • Vacation packages: Modifications or cancellations must be completed at least 72 hours before scheduled departure.
• Vouchers, Not Cash: Canceling a booking with Trip Flex yields an Allegiant travel credit voucher, not an automatic cash refund to your payment card. The cost of the Trip Flex add-on itself is non-refundable.
• Not Travel Insurance: Trip Flex is not comprehensive travel insurance; it does not reimburse out-of-pocket medical emergencies, lost baggage, or missed connections outside carrier control.

How to Select or Change an Allegiant Seat

Seats on Allegiant are unbundled and sold à la carte. You can select a seat during initial booking, or purchase and modify seats later using Manage Travel.

If you do not pre-purchase a seat assignment, Allegiant will assign a seat at check-in at no additional seat-selection charge. Because automatic seat assignments are based on remaining cabin availability, Allegiant does not guarantee that companions or family members will be seated together on unassigned reservations.

To select or change a seat online:

1. Open your reservation in Manage Travel.
2. Select the seat modification option to view the interactive cabin seat map.
3. Choose available standard, Legroom+, or exit row seats for each passenger.
4. Review seat charges, which vary based on route, location in the cabin, and legroom.
5. Complete payment to secure your seat selection.

For detailed information on cabin layout and exit row safety requirements, see our dedicated Allegiant seat selection guide.

How to Add Baggage to an Allegiant Booking

Every standard Allegiant ticket includes only one personal item (such as a small backpack, purse, or briefcase) that must fit underneath the seat in front of you. Overhead carry-on bags and checked bags incur separate charges.

Adding baggage via Manage Travel:

1. Log into your booking in Manage Travel.
2. Navigate to the baggage section.
3. Select the number of carry-on and checked bags needed for each passenger per segment.
4. Review the current price shown in Manage Travel before submitting payment.

Prices may vary depending on when and where baggage is purchased; review the current price shown in Manage Travel. Purchasing baggage through Manage Travel before arriving at the airport helps you avoid higher airport ticket counter rates. Once added and paid for, baggage fees are non-refundable.

For exact size limits, weight thresholds, and sporting equipment policies, visit our Allegiant baggage allowance guide.

Adding Priority Access

If Priority Access is available for your flight, it can be purchased during checkout or added through Manage Travel when available.

Priority Access offers designated early boarding privileges and priority check-in lane access at select airport locations where available. It does not provide guaranteed seat locations, TSA PreCheck screening benefits, or universal expedited security lane access across all airports.

How to Cancel an Allegiant Reservation

To cancel an eligible Allegiant reservation online:

1. Open your booking in Manage Travel.
2. Select the cancellation option from your Trip Summary.
3. Review the cancellation summary, which displays any eligible refund or travel credit voucher balance after applicable fees are applied.
4. Confirm the cancellation.
5. Record your cancellation confirmation code and save the confirmation email for your records.

Cancellation Within 24 Hours

Under Allegiant policy, an eligible itinerary may be canceled within 24 hours of purchase for a full refund back to the original form of payment, provided the scheduled departure was at least 168 hours (7 days) away at the time of booking.

Federal DOT Distinction: The U.S. Department of Transportation requires airlines to allow 24-hour holds or full refunds for direct airline ticket purchases made at least one week prior to departure. This federal requirement applies to airline-direct bookings and does not govern third-party travel agencies or online travel agencies (OTAs) in the same manner. If you purchased your ticket through an OTA, contact that agency directly to determine its cancellation policies.

Standard Cancellation After 24 Hours

For cancellations initiated after the 24-hour window:

• Standard fares are non-refundable to original payment methods.
• Qualifying cancellations made at least 7 days before departure receive an Allegiant travel credit voucher, minus the standard cancellation fee ($25 per person, per segment) and non-refundable booking fees.
• Cancellations made within 7 days of departure without Trip Flex receive no travel credit.
• With Trip Flex, flight-only cancellations completed at least 1 hour before departure receive a travel voucher without standard cancellation fee deductions.

For comprehensive rules regarding credit voucher validity and expiration, review the Allegiant cancellation and refund policy.

Airline-Initiated Cancellations and Significant Delays

When Allegiant cancels a flight or makes a significant schedule change and the passenger chooses not to accept alternative transportation offered by the carrier, federal consumer protection rules apply:

• Under U.S. Department of Transportation rules, passengers are entitled to a full refund to their original payment method for the unflown portions of their itinerary.
• This entitlement is distinct from Allegiant’s voluntary cancellation rules. You do not have to accept a travel credit or rebooking voucher if the airline cancels your flight and you decline the alternative arrangements.

You can check the current operational status of your flight before heading to the airport using our guide to live Allegiant flight status.

Can I Manage an Allegiant Booking Made Through a Travel Agency?

Allegiant sells the vast majority of its tickets directly through its website and mobile app. If your booking was made through a third-party travel platform, online travel agency, or package provider:

• Viewing and Ancillaries: If you have an Allegiant 6-character confirmation code, you can generally access Manage Travel to view your itinerary, select seats, and purchase baggage.
• Changes and Cancellations: Major ticket changes, date modifications, or refund processing must typically be handled through the third-party booking agency where the ticket was originally issued.
• DOT 24-Hour Rule: The federal 24-hour refund mandate does not apply to third-party travel agents in the same way it applies to direct airline purchases. Check your agency's terms for specific cancellation conditions.

I Can't Find My Allegiant Reservation — What Should I Do?

If you cannot retrieve your reservation in Manage Travel, work through these steps:

• Verify Your Confirmation Email: Check your email spam, junk, and promotions folders for a receipt sent by Allegiant Air.
• Confirm Passenger Information: Make sure the last name entered matches the spelling on the reservation receipt exactly.
• Use the Card Lookup Method: If you do not have the 6-character confirmation code, use Allegiant’s alternative lookup tool by entering the traveler’s name, travel date, and the last 4 digits of the payment card used at checkout.
• Identify the Booking Source: If you booked through a vacation company or travel agent, confirm whether the code you are using is the airline confirmation code or an agency reference number.
• Contact Carrier Support: If you have confirmed card charges but cannot retrieve your itinerary, contact Allegiant directly for verification.

Never share full credit card numbers, passwords, or booking confirmation codes on public forums or third-party websites. FareWander does not access carrier ticketing databases and cannot modify passenger reservations.

Troubleshooting Common Manage Travel Problems

When Should You Contact Allegiant?

While Manage Travel resolves most routine reservation tasks, contact Allegiant Customer Care directly in the following situations:

• You cannot retrieve an itinerary online despite a confirmed transaction on your payment card.
• You need to request special accessibility accommodations, wheelchair assistance, or service animal documentation.
• Your flight was cancelled or significantly rescheduled by the airline, and the automated rebooking alternatives do not meet your schedule.
• You need to correct a misspelled passenger name on an existing ticket.
• An existing Allegiant travel credit voucher fails to apply at checkout due to technical errors.

To locate verified phone channels and digital chat tools, consult our guide to Allegiant customer care. Also explore our complete Allegiant Air overview for route network and fare bundle details.

Manage Travel and Pre-Flight Deadlines

Review these important deadlines to prevent boarding issues:

• Manage Travel Modifications: Flight changes without Trip Flex must be completed at least 7 days prior to departure. With Trip Flex, flight changes must be completed at least 1 hour prior to departure (72 hours for vacation packages).
• Online Check-In Window: Check-in opens 24 hours before departure and closes strictly 45 minutes before departure.
• Checked Baggage Drop Cutoff: Checked baggage must be dropped off at the airport counter at least 1 hour (60 minutes) prior to scheduled departure.

Sources & Official References

• Allegiant Air Official Website: Flight booking and Manage Travel portal (allegiantair.com)
• Allegiant Air Customer Service Plan & Contract of Carriage: Official terms governing 7-day modification windows, segment fees, and Trip Flex rules (allegiantair.com/customer-service-plan)
• Allegiant Air FAQs & Help Center: Policies on seating, baggage, and reservation lookup (allegiantair.com/faq)
• U.S. Department of Transportation (DOT): Aviation Consumer Protection rules governing 24-hour booking refunds and airline-initiated cancellations (transportation.gov/airconsumer)