What it looks like
One leg, a day later
example output- Flight
- Madrid → London, moved from the 8th to the 9th
- Fare
- $126 → $86
- Saving
- −$40 per person
- Cost in nights
- Madrid 4 instead of 3, London 2 instead of 3
The optimizer already picked the cheapest dates inside the nights you allowed. What is left in this section is the trade you never authorised it to make, so it asks instead of taking it.
When it does not work
- Fixed dates with tight nights ranges leave nowhere to move. The section will be empty and will say so.
- The grids only cover pairs Kiwi and Ryanair price. A leg neither covers gets no cheaper-days check at all.
- Savings under $12, or under 10% of the fare, are not shown. Chasing $6 across six legs is not worth a re-plan.
- Grid fares are cached up to 12 hours and are not a booking. The re-plan re-checks the legs that matter.
Risk
No risk
One booking, normal rules. Nothing here can be taken away from you.