Bus E4 to the BastionorBus E4b to Piața 700 and the station?

The short answer

For one traveler they cost the same. That does not change up to 8 travelers.

The Bus E4 to the Bastion is quicker: 26 min against 30 min. The Bus E4b to Piața 700 and the station varies between 21 and 37 minutes.

Bus E4 to the Bastion: 04:55–22:59. Bus E4b to Piața 700 and the station: 06:10–23:25.

Priced against each other

Whole-party totals · adult fares

What each costs for the whole party, in RON. The cheaper of the two is marked on every row.
Travelers	Bus E4 to the Bastion	Bus E4b to Piața 700 and the station	Difference
1	RON 5	RON 5	same
2	RON 10	RON 10	same
3	RON 15	RON 15	same
4	RON 20	RON 20	same
5	RON 25	RON 25	same
6	RON 30	RON 30	same
7	RON 35	RON 35	same
8	RON 40	RON 40	same

Where each one leaves you

E4 · STPTBus E4 to the Bastion

From: The Aeroport Terminal Schengen stop, then the second airport stop by Terminal B
To: Bastion stop, at the Maria Theresia Bastion on the east edge of the old town, a short walk from Piața Unirii
Runs: 04:55–22:59
Journey: 18–33 min

The ride is 18 to 33 minutes to Aurel Popovici, the stop before the Bastion, depending on the hour; about 22 at weekends.

Riding without a valid ticket costs RON 200. A bulky bag that takes a seat needs its own ticket.

After the last E4, the E4b leaves the airport at 23:25 on weekdays. Nothing then runs until 04:55.

E4b · STPTBus E4b to Piața 700 and the station

From: The Aeroport Terminal Schengen stop, then the second airport stop by Terminal B
To: Piața 700 stop, at the west edge of the old town, then Gara de Nord at Timișoara Nord station
Runs: 06:10–23:25
Journey: 21–37 min

Twelve departures on weekdays and eleven at weekends; check the time before you leave the terminal.

The ride is 21 to 37 minutes to Piața 700 on weekdays, about 25 at weekends, and 26 to 42 to Gara de Nord.

Riding without a valid ticket costs RON 200. A bulky bag that takes a seat needs its own ticket.