Slot question (I know everyone is tired of these)

[Yarnam]

When you change a flight time do you pay all the costs of the new slots or do you just pay the difference in price if it is higher? i.e. do you get to "trade in" your old slots on the new ones?

If the answer is no what happens to the old slots? Back for sale?

[AUpilot77]

As long as it's within the same hour (5:00am-5:55am) etc then you won't pay anything if you change. For example if you move a 5:55am departure to 6:05am then you'll pay for the new slot, but if you move 5:00am to 5:55am then you won't pay anything.

[Yarnam]

Thanks for letting me know that

[Cardinal]

If you move from 5:30am to 6:30am, there is a discount. Depending on the change in time, the discount runs from 100% (5-10 minutes in a different clock hour) to 70% and 50%. Beyond a certain time, you pay the full price again. Also, if a discount applies, you don't have to pay the added fees for the change (anti-monopoly, crowded airport, peak hour, etc) that would normally be piled on to the base price of the slots.

[Yarnam]

Thank you 

[knobbygb]

The reply above about moving from 05:55 to 06:05 is wrong.  The charges relate to how far you move the slot from the original. Being in the same hour doesn't matter.  A ten minute change is free, no matter what the times. More than that brings a varying fee. Anything up to an 80 minutes change gets you a discount and anything over 80 minutes, you pay the full price for the new slot and lose the old one.

Note: I said MOVING the slot from 05:55 to 06:06 is free - i.e. by editing the route. If you cancel the route and then recreate it at 06:05 the system will take up a totally new slot. Slots you still own that are unused by a route ARE only re-used if the new route is in the same hour, so maybe that's what the poster meant.

[Yarnam]

I found the "same hour" statement as correct. Yes you can move a flight from 0600 to 0655 with no slot penalty at your own base. The rule does not hold true of the slot price to where you are flying. And of course there is the free 10 minute move. Experiment yourself and you will see.

[Cardinal]

Actually, the rule does apply to the outstation, in the same way it does to the base. If you moved the departure time from 0600 to 0655 at your base, the departure time of the return flight also slides 55 minutes. It is unlikely that sliding that departure time 55 minutes resulted in it remaining in the same clock hour. Only if the original return flight also departed at :00 would that be the case. Since the new slot for the return flight is in a different clock hour, you have to pay a discounted price for changing the slot.

[Yarnam]

Actually, the rule does apply to the outstation, in the same way it does to the base. If you moved the departure time from 0600 to 0655 at your base, the departure time of the return flight also slides 55 minutes. It is unlikely that sliding that departure time 55 minutes resulted in it remaining in the same clock hour. Only if the original return flight also departed at :00 would that be the case. Since the new slot for the return flight is in a different clock hour, you have to pay a discounted price for changing the slot.

That makes perfect sense, thank you