How to Reschedule a Flight Online: Your Complete Guide

Navigating airline policies can feel like a maze, especially when unexpected plans arise and you need to adjust your travel. If you’re wondering How to Reschedule a Flight Online, you’ve come to the right place. Our Travel Support Team understands the complexities involved and is here to provide a clear, step-by-step guide to help you change your flight date and time with confidence, avoiding common pitfalls and unnecessary fees.

How to Reschedule a Flight Online: A General Step-by-Step Guide

When plans shift, knowing how to reschedule a flight online can save you time and stress. While specific steps might vary slightly by airline, the general process remains remarkably consistent across most major carriers. Our expert advice is to always start by accessing your booking directly on the airline’s official website or mobile app.

Here’s a universal guide to changing your flight date and time online:

1. Access Your Reservation: Go to the airline’s website or app. Look for sections like “My Trips,” “Manage Booking,” or “Check-In.” You’ll typically need your confirmation code (PNR) and the last name of one of the passengers.
2. Locate the Change Option: Once you’ve pulled up your reservation, scan for an option that says “Change Flight,” “Modify Trip,” or “Reschedule.” This is your gateway to initiating a flight change.
3. Select New Dates/Times: The system will prompt you to search for new flights. Enter your desired new travel dates, times, and possibly even different airports if the airline’s policy allows it. Be flexible if you’re trying to avoid higher costs.
4. Review Potential Costs: This is where you’ll see any applicable airline change fees and the fare difference between your original ticket and the new flight. Many airlines have eliminated change fees for Main Cabin and higher fares, but a fare difference almost always applies.
5. Confirm and Pay: Carefully review all the details of your new itinerary and the total cost. If you agree, proceed to confirm the change and complete any necessary payment. You’ll receive a new confirmation email shortly after.
6. Receive New Confirmation: Always ensure you receive a new confirmation email with your updated itinerary. Keep this handy for your records.

In our experience, most travelers find the online process intuitive, but being prepared for potential costs is key. Remember that even if there’s no specific change fee, a fare difference is almost always a factor when you reschedule a flight online.

Airline Flight Change Policies: Fees, Fare Differences & Basic Economy Compared

Understanding an airline’s flight change policy is crucial before you attempt to reschedule. While many major U.S. airlines removed standard change fees for most domestic and some international tickets in 2020-2021, fare differences can still significantly impact the cost of changing your flight. This is a critical distinction that many travelers overlook.

Here’s a general overview of how major carriers handle changes, focusing on airline change fees, fare differences, and the often-restrictive basic economy change rules:

• Delta Air Lines: Delta eliminated change fees for most Main Cabin and above tickets originating in the U.S. and Canada. However, you will pay the fare difference if the new flight is more expensive. If it’s cheaper, you receive the difference as an eCredit. Basic Economy tickets are generally non-changeable unless a significant schedule change occurs, or for a fee assessed in miles for Basic Award Tickets.
• United Airlines: Similar to Delta, United removed most change fees for standard fares for travel within the U.S., Mexico, and the Caribbean. A fare difference is always applied. For United, Basic Economy change options are extremely limited; these tickets generally cannot be changed unless you upgrade them, which often costs more than a new ticket entirely.
• American Airlines: American also eliminated most change fees for Main Cabin and higher fares for domestic and short-haul international flights. Like other airlines, a fare difference applies. Basic Economy tickets are largely non-changeable after the initial 24-hour grace period, with a cancellation fee of approximately $99 if you’re eligible for a travel credit.
• Southwest Airlines: Southwest stands out for its customer-friendly no-change-fee policy on all fare types. If your new flight is more expensive, you pay the fare difference. If it’s cheaper, you receive the difference back to your original payment method for refundable fares, or as a flight credit for non-refundable fares. This makes them a popular choice for those who anticipate needing to reschedule a flight without paying a fee.

The bottom line is that while the explicit “change fee” has largely disappeared for standard tickets, the fare difference remains a real cost. Always check your specific ticket type and the airline’s current policy before making assumptions.

Rescheduling Flights Booked Through OTAs (Expedia, Kayak, etc.)

Booking through Online Travel Agencies (OTAs) like Expedia, Kayak, or Chase Ultimate Rewards offers convenience, but it adds a layer of complexity when you need to reschedule a flight. The general rule of thumb for an OTA flight change is that you should always start with the platform where you made the booking.

Here’s how to navigate rescheduling when you’ve booked via a third party:

• Contact the OTA First: For most changes, your first point of contact should be the OTA. They hold your booking record and often have specific agreements with airlines to manage changes. Look for a “Manage My Booking” or “Customer Service” section on their website or app. For example, if you’re trying to how to change flight on Expedia, you’d log into your Expedia account, find your trip, and look for the modification options there.
• Understand OTA-Specific Fees: Be aware that some OTAs may charge their own administrative fees on top of any airline-imposed fare differences or fees. This is less common with major OTAs now but always worth checking their terms.
• When to Contact the Airline Directly: There are exceptions where contacting the airline directly might be necessary or even preferred. This is usually the case for minor changes within 24 hours of booking (often allowed by DOT rules), or if the flight is experiencing an involuntary airline schedule change (e.g., a significant delay or cancellation initiated by the airline). In such cases, the airline might be able to assist directly, especially if the OTA’s options are limited.
• Complex Changes: For complex changes like multi-leg journeys, international flights, or those involving partner airlines, the process can become more intricate. The OTA often acts as a middleman, coordinating with the airline on your behalf. Patience is key in these situations.

Our team advises that while OTAs can offer great deals, direct airline bookings often provide more flexibility and direct control when it comes to managing changes, especially if you anticipate needing to adjust your plans.

Can I Change My Flight Date Online for Free? (Leveraging Schedule Changes)

The short answer to “Can I change my flight date online for free?” is sometimes, especially if the airline initiates a change. While most airlines have eliminated explicit change fees, you still usually pay a fare difference. However, there’s a powerful way to reschedule flight without paying fee or fare difference: leveraging airline schedule changes.

Airlines frequently adjust their schedules, and sometimes these changes can be significant enough to trigger passenger rights under U.S. Department of Transportation (DOT) regulations. According to a final rule on “Airline Refunds and Other Consumer Protection” published by the DOT on April 26, 2024, airlines are required to provide prompt refunds for canceled, significantly delayed, or significantly changed flights if consumers reject alternative options. A “significant change” is defined as:

• A domestic flight delayed by three hours or more.
• An international flight delayed by six hours or more.
• Changes to the departure or arrival airport.
• An increase in the number of connections.
• Changes to the type of aircraft if it results in a significant downgrade in experience or amenities.

Here’s how you can proactively use these changes to your advantage for free rescheduling:

1. Monitor Your Flight: Regularly check your flight status on the airline’s website or app. Sign up for flight alerts. Even minor changes (e.g., 30 minutes) can sometimes be enough to open a window for a free change, although the DOT rules specify more significant delays for guaranteed refunds.
2. Identify “Significant” Changes: If your flight experiences a delay meeting the DOT’s criteria (3+ hours domestic, 6+ hours international), or a significant routing change, you are generally entitled to a full refund or a free change to an alternative flight, even if it’s more expensive.
3. Contact the Airline: Once you identify a qualifying schedule change, contact the airline’s customer service. Clearly state that your flight has been significantly changed by the airline and you wish to rebook for free or receive a refund based on DOT passenger rights. Be persistent but polite.
4. Explore Options: Don’t just accept the first alternative offered. Ask if you can change to a different date, time, or even a different airport (if geographically close) without a fare difference. This is your opportunity to secure a free change that aligns better with your new plans.

This strategy is the most reliable way to avoid both change fees and fare differences when you need to change your flight date, provided the airline initiates a significant alteration to your original itinerary. This is a key aspect of maximizing your DOT passenger rights.

How Late Can You Change a Flight? & After Checking In

A common question we receive is, “How late can you change a flight?” The answer largely depends on the airline and your specific fare type. Generally, most airlines allow you to make changes online up to a few hours before the scheduled departure time. However, this window shrinks considerably, or even closes, once you’ve checked in.

Changing a Flight Before Check-In

For most standard fares, you can typically change your flight online anywhere from 24 hours to a few hours before departure. For instance, Southwest Airlines is incredibly flexible, allowing changes up to 10 minutes before departure for any fare type. Other airlines might have cut-off times, often 2-4 hours before the flight, after which online changes are no longer permitted, and you might need to call customer service or speak to an agent at the airport.

Always check your specific airline’s policy, as some may impose stricter deadlines, especially for international flights or during peak travel periods. The earlier you decide to make a change, the more options you’ll typically have and potentially lower fare differences.

Can I Change My Flight Online After Checking In?

The ability to change flight after check-in online is generally very limited, if not impossible, with most airlines. Once you’ve checked in, the airline processes your boarding pass and often allocates you a seat, which complicates online modifications. In our experience, if you need to change your flight after checking in, you’ll almost certainly need to:

• Call the Airline: This is often your best bet. A customer service agent might be able to override the system or guide you through the process.
• Speak to an Airport Agent: If you’re already at the airport, head to the airline’s check-in counter or customer service desk. They have the authority to make changes, though fees and fare differences will still apply, and options may be limited depending on availability.

For same-day flight change scenarios, some airlines offer “same-day confirmed” or “same-day standby” options, often for a fee (e.g., starting at $60 for American Airlines domestic) or free for elite status members. These typically allow you to switch to an earlier or later flight on the same day to the same destination, but usually require you to have already checked in for your original flight. However, these are specific programs, not general flight changes.

Is it Cheaper to Change a Flight or Cancel and Rebook?

When faced with a change of plans, many travelers ponder: “Is it cheaper to change a flight or cancel and rebook?” The answer is not always straightforward and depends heavily on your specific fare type, the airline’s flight cancellation policy, and the current price of new tickets.

Here’s a breakdown to help you decide on whether to cancel vs rebook flight:

1. Consider Fare Differences: When you change a flight, you almost always pay the difference between your original fare and the new fare. If the new flight is significantly more expensive, this difference can be substantial.
2. Cancellation Fees & Credits:
   • Non-refundable tickets: Most non-refundable tickets, if canceled, will result in you losing the money or receiving a travel credit (minus any cancellation fees). If you get a credit, it’s typically tied to the original passenger and often has an expiration date. The value of this credit might then be less than the cost of a new ticket.
   • Refundable tickets: These fares are more expensive upfront but offer maximum flexibility. If you cancel a refundable ticket, you usually get a full refund to your original form of payment, making it easier to rebook without penalty.
   • Basic Economy: For basic economy change options, it’s often more economical to forfeit the ticket and buy a new one, as these fares are typically non-changeable and non-refundable, or come with high cancellation fees.
3. Current Ticket Prices: Compare the total cost of changing (fare difference + any remaining change fees) with the cost of a completely new ticket. Sometimes, especially if you booked far in advance and prices have dropped, buying a new ticket might paradoxically be cheaper than paying a high fare difference on your existing ticket.
4. Remaining Value of Original Ticket: If your original flight was very cheap, the fare difference to a more expensive new flight might make changing prohibitively expensive. In such cases, canceling (if feasible for a partial credit or refund) and rebooking might be the better financial move.

In practice, our Travel Support Team generally finds that if you have a non-refundable Main Cabin or higher ticket with an airline that has eliminated change fees, changing your flight is usually the cheaper option because you only pay the fare difference. However, for basic economy fares, or if the new flight is drastically more expensive, crunching the numbers for a full cancellation and rebooking is essential. For more detailed insights, you can review our guide on Flight Cancellation Policy Explained.

What Happens if You Change a Flight to a Cheaper One?

It’s a pleasant surprise when you find a new flight that’s cheaper than your original booking, but what happens to the price difference? When you change a flight to a cheaper one, the outcome largely depends on the airline’s specific policy and the type of fare you purchased.

Here’s what you can generally expect:

• Airline Credit (eCredit or Voucher): Most major U.S. airlines, including Delta, United, and American, will issue you an airline credit (often called an eCredit or flight voucher) for the difference in fare. This credit is typically valid for future travel with that specific airline and usually has an expiration date, often one year from the original ticket’s purchase date. It’s usually tied to the original passenger.
• Refund to Original Form of Payment (Less Common): A direct refund to your original payment method for the fare difference is much less common, especially for non-refundable tickets. This usually only happens with highly flexible or refundable fares, or in specific circumstances like an involuntary airline schedule change where you opt for a cheaper alternative.
• Southwest Airlines Exception: Southwest is a notable exception. If you change to a cheaper flight on Southwest, and you purchased a refundable fare (e.g., Anytime or Business Select), the difference is refunded to your original form of payment. For non-refundable fares (e.g., Wanna Get Away), the difference is held as a flight credit for future use, similar to other airlines’ eCredits, but without a change fee.

When changing to a cheaper flight, always confirm with the airline how the fare difference will be handled before finalizing the change. Our Travel Support Team advises against assuming you’ll receive a cash refund; an airline credit is the most common outcome for non-refundable tickets.

DOT Passenger Rights & Refunds for Significant Flight Changes

Understanding your DOT passenger rights is paramount, especially when airlines make changes to your itinerary. The U.S. Department of Transportation (DOT) has clear regulations designed to protect consumers in cases of flight cancellations, significant delays, or schedule changes initiated by the airline. These rights ensure you’re not left without recourse when your travel plans are disrupted.

As detailed in a final rule on “Airline Refunds and Other Consumer Protection” published by the Federal Register on December 5, 2025, airlines are now explicitly required to provide prompt cash refunds if a passenger’s flight is canceled or significantly changed and they reject alternative transportation or other offers. This rule defines a “significant change” as:

• A domestic flight delayed by three hours or more.
• An international flight delayed by six hours or more.
• Changes to the departure or arrival airport.
• An increase in the number of connections.
• Changes to the type of aircraft if it results in a significant downgrade in experience or amenities.

This means if your flight falls into one of these categories due to an airline-initiated alteration, you have the right to a full refund, even on non-refundable tickets. You are not obligated to accept a flight credit or a rebooked flight if the new schedule doesn’t work for you.

Beyond refunds, there’s a growing push for broader passenger protections. In December 2025, U.S. Senators introduced the “Flight Delay and Cancellation Compensation Act,” aiming to mandate cash compensation and free rebooking for passengers facing significant airline-caused delays or cancellations. Senator Blumenthal stated this “commonsense legislation holds airlines accountable and properly compensates passengers.” While this is proposed legislation, the existing DOT rules provide a strong foundation for consumer protection against involuntary schedule changes.

Always keep records of your original booking and any communication with the airline regarding changes. If you believe your rights have been violated, you can file a complaint with the DOT’s Aviation Consumer Protection Division.

Frequently Asked Questions

Can I change my flight date online for free?

You can sometimes change your flight date online for free if the airline makes a significant schedule change to your original flight (e.g., a domestic delay of 3+ hours or international delay of 6+ hours). Otherwise, while many airlines have eliminated explicit change fees for standard fares, a fare difference between your original and new flight will almost always apply.

How much does it cost to change a flight date?

The cost to change a flight date primarily consists of the fare difference between your original ticket and the new flight you select. While most major U.S. airlines no longer charge a separate “change fee” for Main Cabin and higher fares, Basic Economy tickets often remain non-changeable or incur significant fees. Southwest Airlines is a notable exception, charging no change fees on any fare type, only the fare difference.

How late can you change a flight?

Most airlines allow you to change a flight online up to a few hours before departure, typically 2-4 hours. However, once you’ve checked in for your flight, online changes are usually no longer possible, and you would need to contact the airline directly or speak with an agent at the airport for assistance.

What happens if you change a flight to a cheaper one?

If you change your flight to a cheaper one, most airlines will issue you an airline credit (eCredit or voucher) for the difference in fare, valid for future travel with that airline, usually with an expiration date. Direct refunds to your original payment method are rare for non-refundable tickets, with Southwest Airlines being a key exception for certain fare types.

Mastering how to reschedule a flight online empowers you to adapt to life’s unpredictable moments without unnecessary stress or expense. By understanding airline policies, leveraging DOT passenger rights for schedule changes, and knowing when to contact an OTA versus the airline, you can confidently navigate flight modifications. Our Travel Support Team is committed to providing you with the knowledge needed to make informed decisions and ensure your travel plans remain as flexible as you need them to be.