Night bus N32orPre-booked private transfer?

The short answer

For one traveler the Night bus N32 is cheaper by PLN 173.60. That does not change up to 8 travelers.

The Pre-booked private transfer is quicker: 20 min against 24 min. The Night bus N32 varies between 20 and 24 minutes.

Night bus N32: 00:13–04:43. Pre-booked private transfer: Runs all night.

Priced against each other

Whole-party totals · adult fares

What each costs for the whole party, in PLN. The cheaper of the two is marked on every row. The Pre-booked private transfer is charged in euros; its column is converted at the reference rate in its fare note.
Travelers	Night bus N32	Pre-booked private transfer	Difference
1	PLN 4.40	about PLN 178	PLN 173.60
2	PLN 8.80	about PLN 178	PLN 169.20
3	PLN 13.20	about PLN 178	PLN 164.80
4	PLN 17.60	about PLN 178	PLN 160.40
5	PLN 22	about PLN 256	PLN 234
6	PLN 26.40	about PLN 256	PLN 229.60
7	PLN 30.80	about PLN 256	PLN 225.20
8	PLN 35.20	about PLN 512	PLN 476.80

Where each one leaves you

N32 · Warszawski Transport Publiczny (ZTM)Night bus N32

From: Stop "Lotnisko Chopina – Przyloty 02" on the arrivals level, the same stop as the 175
To: Dw. Centralny in 20 minutes and Centrum, the night-bus interchange, in 24
Luggage: Free and unlimited by the tariff; a city bus with no hold.
Runs: 00:13–04:43
Journey: 20–24 min

It fills the whole gap: the last 175 leaves at 23:58, the N32 starts at 00:13, and the first morning train is at 04:56.

Buy the ticket before boarding if you have no card: the machine on the bus takes cards only.

Centrum is where Warsaw's night lines meet; the N32 goes no further, so the Old Town is a change or a walk at night.

transfer · KiwitaxiPre-booked private transfer

From: Driver meets you in arrivals with a name board
To: Any address in Warsaw
Luggage: The sedan seats four with three bags; the minibus seven with seven. Choose by luggage as well as seats.
Runs: All night
Journey: 20 min

Book at least 16 hours ahead; nearer the day a car is offered only when one is free.

Partner link