Give each base a purpose
A stay divided between Jeddah and Yanbu works best when each base has a clear role. Perhaps one is intended for city experiences and the other for a different part of the coast. Write those purposes down before deciding how many separate transfers the trip requires.
Avoid using a change of hotel as an undefined sightseeing day. A move between accommodation bases is already a journey with its own origin and destination. Additional visits need a place in that sequence and a clear agreement about what the transport arrangement covers.
Put the overnight locations in order
Create a short list of accommodation dates, then connect consecutive properties. This identifies the main intercity movement. Add the arrival airport stage before the first stay and the departure airport stage after the last.
Now review the outings within each stay. If an activity is planned from the wrong base, reconsider its position rather than assuming a vehicle will bridge the gap as part of an existing transfer. A geographically ambitious list can hide several unplanned journeys.
Compare a whole-trip outline
For a useful comparison, specify the same accommodation sequence and agreed stops in each enquiry. A price for Jeddah Airport directly to Yanbu is not equivalent to a trip that first spends time at a Jeddah hotel or attraction. Both may be valid arrangements, but they answer different requests.
Keep activity admission, guiding and transport as distinct components unless a provider explicitly confirms a combined product. A coastal itinerary can involve several organisations, and a transport confirmation should make its own responsibilities clear.
The final outline should let you identify every move between bases without rereading a long conversation. With the main transfers settled, you can add experiences around the stays while preserving a clear route to the final departure point.