Mastering Same-Day Flight Changes: Standby vs. Confirmed Options Explained

Many US airlines offer same-day standby for free to all passengers. But Alaska Airlines and Delta are among the carriers that do not offer it to its basic economy fares. A same-day confirmed change usually involves a fee; for example, American charges $60 or $150 depending on the route. Always read the airline’s policy on same-day standby. Then arrive early, register at the gate or check-in desk and, if possible, have carry-on only to avoid baggage issues.

Same-Day Standby: How It Works

Request Placement 

You can request to be put on the standby list for an earlier flight through the airline’s website, app, or at the airport. 

Wait for a Seat 

You will remain on your original confirmed flight until a seat is assigned to you on the earlier flight. 

Potential outcomes:

• If a seat becomes available, you will be moved to the new flight and given a new boarding pass. Your original flight remains confirmed until you are officially moved. 
• If no seats are available, you will remain on your original flight. 

Cost 

Same-day standby is often a complimentary service, but this can vary by airline, fare type, and elite status. Some airlines charge a fee for same-day confirmed changes, which is different from the standby list (see below). 

Key Considerations

Original flight status 

Your original flight is confirmed and you will still be on it unless you are officially moved to the new flight. 

Potential for cost savings 

If you booked a later flight because it was cheaper, you might be able to switch to an earlier, more expensive flight through standby without paying the difference in fare – though this depends on the airline’s policies. 

Airline policies

Standby rules, eligibility, and fees can differ significantly between airlines and may also depend on your ticket type and loyalty status. Read the appropriate section of the airline’s website and ask at check-in and the gate.

Eligibility: 

On some airlines, some fare classes, like basic economy, are not eligible for same-day standby or confirmed changes. 

Learn how same-day standby works and what to expect when trying to catch an earlier flight, from requesting a spot to understanding costs and eligibility © Kiwi.com

Same-Day Confirmed Change: How It Works

A same-day confirmed change is a travel option offered by many airlines that allows passengers to switch to a different flight on the same calendar day as their original booking, with a guaranteed seat on the new flight.

Eligibility 

Generally available to travelers on eligible fare types and loyalty program members. Basic economy tickets are almost always excluded.

Timing

Changes can typically be made within 24 hours of your original flight’s departure.

Fees

A fee often applies for regular passengers, but the charge is waived for most elite members. The fee also varies by airline and route.

Fare difference

 If the fare class you originally purchased is not available on the new flight, some airlines may require you to pay the fare difference in addition to the change fee.

Availability

Same-day confirmed changes are only available if there are seats open in the fare class and on the same route as on your original ticket. 

Cost & Eligibility

• Fees vary by airline, though some waive it for elite loyalty members or flexible fare holders.
• You must have a ticket type that qualifies (e.g., Main Cabin, Comfort+, or Premium; Basic Economy is usually excluded).
• Availability depends on whether there’s an open seat in your original fare class.

Which option should you choose?

Same-Day Standby Policies by Airline, US

Airlines have different same-day standby policies, with some offering free standby to all passengers and others limiting it to certain fare classes or elite status members. In almost all cases, same-day standby is limited to flights on the same day between the same origin and destination. 

Alaska Airlines

Availability 

Only available for certain routes.

Fees

$50 or $75, depending on route. Saver fares pay an additional $40 per change.

American Airlines

Eligibility 

Complimentary flight changes and same-day standby are available only for travel on American Airlines within and between the U.S., Puerto Rico and the U.S. Virgin Islands. Only AAdvantage status members can stand by for a later flight.

Restrictions

To make any change, you must depart on the same day, from and to the same airports, as your original flight and have the same number of stops, in the same airports, as your original flight.

Availability

Available only for flights from and to the U.S ., Puerto Rico and the U.S. Virgin Islands.

Delta Air Lines

Availability

Same-day standby is free but is only offered if a same-day confirmed change is not available.

Timing 

Available for earlier flights only, with Medallion elite members having more flexibility for later flights.

Ineligible fares 

Basic Economy (Main Basic) fares are not eligible. 

JetBlue

Availability 

Standby is available only for Blue, Blue Plus, and Mint fares and is subject to a $75 fee. This fee is refundable if you are not confirmed on your standby flight. Fare differences are not applied. Blue Basic fares are not eligible for standby.

Restrictions

A same-day switch can only be made on the day of travel, beginning at midnight in the time zone of your departing flight. You must travel between the same city pairs or, where applicable, in or out of nearby airports.

Elite members

The standby fee is waived for Mosaic elite members and for holders of refundable tickets. 

Spirit Airlines

Availability and fees

Spirit First or Premium Economy passengers can register for same-day standby free of charge. However, a fare difference may apply.

Timing

Changes can be made online up to one hour before scheduled departure. 

United Airlines

Availability 

Same-day standby is free for all passengers. But if you’re flying on a Basic Economy ticket, you cannot change your flight unless you upgrade to Economy or a premium cabin

Fare differences

You will be charged the difference if a standby seat is more expensive than your original purchase.

Restrictions

The new flight must be on the same day and have the same start and end point as your original flight.

Bags

United will attempt to move checked bags to the new flight, but it is not guaranteed. 

Practical Checklist to Improve Your Chances for Standby

• Arrive early and register at the gate or check-in desk.
• If possible, have flexible carry-on only to avoid baggage recheck delays.
• Be ready to board immediately if called.
• Know your frequent-flyer status and have it linked to the booking.
• Ask gate agents politely about realistic chances and any fees or rules.

Same-Day Confirmed Change Policies by Airline, US

Same-day confirmed change policies vary by carrier but commonly allow passengers to request an earlier or later flight on the same calendar day for the same origin, destination and route, subject to availability. Fees, eligibility (status, cabin, fare class), and fare-difference policies differ between airlines.

Alaska Airlines

Eligibility

You must request the change prior to the departure of your original flight and must keep the same origin, destination, through, and connection cities. 

Fees

Same-day confirmed changes have a fee ($50 or $75, depending on route; additional $40 for Saver passengers). But the fee is waived for high-tier AAdvantage elite members and other passenger classes. Check the airline’s website page .

American Airlines

Eligibility

Basic Economy passengers can make same-day confirmed changes on select flights for a fee, with some exceptions. 

Restrictions

Please see “restrictions” for same-day standby.

Availability

Available for flights to and from U.S., Puerto Rico and the U.S. Virgin Islands, Canada and the Caribbean and between and through New York ’s JFK and London ’s Heathrow airports.

Fees

Starting at $60 or $150 depending on route. See airline’s website for details.

Delta Air Lines

Eligibility

If you purchased a seat in Delta Main or Delta Comfort, you can switch if a seat is available in your originally purchased fare class.  Delta Main Basic (Basic Economy) tickets are excluded. 

Timing

You can change to an earlier flight on the same day within 24 hours of its departure.

Fees

A $75 fee is charged, but it is waived for several elite fares. 

JetBlue

Fees

Most fares (Blue, Blue Plus, EvenMore, Mint) are eligible for a same-day switch for a $75 fee. However, the fee is waived for Mosaic elite members and holders of refundable tickets.

Basic Economy

Blue Basic fares cannot be changed on the same day.

Flexibility

Same-day changes can be made for flights departing from an approved co-terminal airport (e.g., LGA to JFK). 

Spirit Airlines

Eligibility

Same-day confirmed changes are possible but are subject to fees and fare differences.

Timing

Changes and cancellations can be made up to one hour before departure.

Online changes

Modifying your reservation online is typically cheaper than doing so with a phone agent. 

United Airlines

Fees

United charges up to $75 for a same-day confirmed change, though the fee can be waived for certain MileagePlus Premier members. Some Premier members can make the change for free if the new flight is in the same fare class as the original ticket. For all other travelers, a fare difference may apply even if the same fare class is available. The original and destination airports must stay the same.

Timing

Same-day changes are permitted within 24 hours of departure. 

Eligibility

Basic Economy tickets are not eligible for same-day changes. 

Practical Tips for Same-Day Confirmed Changes

• Check your ticket’s fare class and your elite status before attempting a same-day change; that determines cost and priority.
• Request same-day confirmed changes as early as possible at the airport kiosk or gate.
• If fare difference is large, consider standby for an earlier flight to avoid paying the full difference.
• For partner-operated itineraries or codeshares, confirm whether the operating carrier’s same-day rules apply

Same-Day Policies by Airline, Europe

In general, same-day standby policies are less common and more restrictive among major European airlines compared to their American counterparts. Instead of offering free or low-cost unconfirmed standby, European carriers typically require passengers to pay a fee for a same-day confirmed flight change, which is subject to seat availability. The specific options available depend heavily on your ticket’s fare class and any elite status you may hold. Read the appropriate section of the airline’s website to learn the conditions.

Urgent and Practical FAQs: Same-Day Standby & Confirmed Change

What exactly is same-day standby?

Same-day standby applies mostly to earlier flights, the seat is not reserved, any available seat will work, and it is usually free. However, some carriers, such as Alaska, JetBlue, and Delta, offer it only if same-day confirmed change is not available. JetBlue charges a $75 fee.

What exactly is same-day confirmed change?

Same-day confirmed change can be for an earlier or later flight. The seat is guaranteed but must usually be in the same fare class as your ticket, and there is usually a fee, though it is often waived for elite status passengers. For example, Delta and United charge $75 but waive the fee for their elite members.

What if the standby seat is more expensive than the original seat?

Some airlines don’t charge the price difference. However, JetBlue and United are among the airlines that charge you if your standby seat costs more than your original ticket. Always review your airline’s standby policy on its website or contact customer service.

What happens to my checked bags if I fly standby?

Ask at check-in or at the gate when requesting your flight change. United will try to get your bags on the same flight but doesn’t guarantee it. With Southwest, your bags may arrive on your original flight instead of your standby flight. It’s often best to request standby when traveling with carry-on only.

How can I improve my chances to get a same-day standby flight?

Check your airline’s conditions of carriage or FAQ on same-day confirmed changes and standby. Review your fare rules or contact the airline’s customer service. Arrive early and register at the gate or check-in desk. Travel light with carry-on only to avoid delays and be ready to board if called. Always ask gate agents politely about your chances and any applicable fees.