Flight segments are considered independent of one another. Within the upgrade offer process, you will have the option to make an offer on all flight segments if they are eligible or you can select specific flight segment(s) you are interested in.
For example, if you are travelling from Calgary to Maui via Vancouver, you can make an offer from Calgary to Vancouver segment or the Vancouver to Maui segment; or on both flight leg segments if you want an enhanced flight experience all the way through.
If you do not want to upgrade a segment, simply move the offer slider to the far left to indicate "No offer" for that segment.
If you made an offer on multiple segments in a single submission, you will receive one email confirmation summarizing your upgrade offers. Please pay attention to the segment of your itinerary for which you are making an offer and set the slider accordingly.