When your travel plans change, knowing how to adjust your flights quickly and easily can save both time and hassle.

Many airlines, including Delta, United, JetBlue, and Alaska, allow corporate travelers to modify their flights directly on their websites, even if the tickets were purchased through a third-party travel management company like AllFly.

However, Southwest typically does not permit these changes, and American Airlines only allows select fares to be modified online.

Here’s a step-by-step guide to help you change your flights on these airline websites:

Your confirmation number, also known as a record locator or PNR, is a crucial piece of information. You can find it in your booking confirmation email or in your travel management platform, such as Quest by AllFly. This confirmation number, along with your last name, is what you’ll use to access your reservation on the airline’s website.

Once on the airline’s website, head to the “My Trips” or similar section. Many airlines have a direct link to access your reservation from the home page itself. Enter your confirmation number and last name to retrieve your booking details.

After accessing your reservation, look for the option to modify or change your flight. This is usually labeled as “Change Flight” or “Modify Reservation.” Some airlines may show this button directly next to your itinerary.

Once you’ve clicked to change your flight, you’ll be taken to a page that shows alternative flight options. You can browse through different times, dates, or even routes, depending on availability. Some changes may have additional costs, while others could be free, depending on the fare rules and the airline’s policies.

After selecting your preferred new flight, review the changes carefully. Make sure all the details align with your updated plans. Once everything looks good, confirm your new itinerary by following the airline’s prompts. You will likely receive a confirmation email with your updated flight information.

This process can often save time compared to waiting on support from a travel agent, and it gives you more control over your schedule. If you’re unsure whether your fare qualifies for online changes, check the specific airline’s policy, as some restrictions may apply.