Welcome Pickups transfer to MiamiorKiwitaxi transfer to downtown Miami?

The short answer

For one traveler the Welcome Pickups transfer to Miami is cheaper by US$20. But at 4 travelers the Kiwitaxi transfer to downtown Miami takes over, and at 5 travelers the Welcome Pickups transfer to Miami takes over, and at 7 travelers the Kiwitaxi transfer to downtown Miami takes over, and at 8 travelers the Welcome Pickups transfer to Miami takes over.

The Kiwitaxi transfer to downtown Miami is quicker: 15 min against 25 min.

Welcome Pickups transfer to Miami: Runs all night. Kiwitaxi transfer to downtown Miami: hours not recorded.

Priced against each other

Whole-party totals · adult fares

What each costs for the whole party, in USD. The cheaper of the two is marked on every row. The Welcome Pickups transfer to Miami is charged in euros; its column is converted at the reference rate in its fare note. The Kiwitaxi transfer to downtown Miami is charged in euros; its column is converted at the reference rate in its fare note.
Travelers	Welcome Pickups transfer to Miami	Kiwitaxi transfer to downtown Miami	Difference
1	about US$62	about US$82	US$20
2	about US$62	about US$82	US$20
3	about US$62	about US$82	US$20
4	about US$124	about US$82	US$42
5	about US$124	about US$147	US$23
6	about US$124	about US$147	US$23
7	about US$186	about US$147	US$39
8	about US$186	about US$294	US$108

The cheaper option changes at 4 travelers, from the Welcome Pickups transfer to Miami to the Kiwitaxi transfer to downtown Miami. The cheaper option changes at 5 travelers, from the Kiwitaxi transfer to downtown Miami to the Welcome Pickups transfer to Miami. The cheaper option changes at 7 travelers, from the Welcome Pickups transfer to Miami to the Kiwitaxi transfer to downtown Miami. The cheaper option changes at 8 travelers, from the Kiwitaxi transfer to downtown Miami to the Welcome Pickups transfer to Miami. That is the whole reason this comparison is not a single number.