With the aid of the following tips, you may simply modify your flight date with Finnair:

* Login or continue as a guest on Finnair's official website with the help of your browser.
* When the website loads, you'll be prompted to choose your region.
* It will then lead you to its official website.
* Locate and choose 'Manage' from the page's topmost touch.
* A drop-down menu will appear, prompting you to enter your 'Family name,' which is your last name, as well as your Booking reference number.
* After you've entered all of your information, click 'Search.'
* On the next page, you'll see a list of all the flights you have under your name, as well as the ones where you may make adjustments.

Read Also: Modify Your Flight Date With Southwest | Modify Your Flight Date With United