The average bus between Trets and Istres takes 2h 58m and the fastest bus takes 2h 23m. The bus service runs several times per day from Trets to Istres. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 3 hours between Trets and Istres. The earliest departure is at 6:30 AM in the morning, and the last departure from Trets is at 7:20 PM which arrives into Istres at 9:46 PM. All services require a transfer at Sous Préfecture and take an average of 2h 58m. The schedules shown below are for the next available departures.


2h 52m • 2 changes

2h 23m • 2 changes

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3h 1m • 2 changes

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2h 36m • 2 changes

3h 1m • 2 changes

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3h 1m • 2 changes

2h 33m • 2 changes

2h 48m • 2 changes

2h 52m • 2 changes

2h 50m • 2 changesWant to know about travelling from Trets to Istres? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Trets to Istres. However, there are services departing from Pôle Q4 station and arriving at Les Carmes station via Aix Sous Préfecture 1 station and Gare Routière station. The journey, including transfers, takes approximately 2h 58m.
Trets to Istres bus services, operated by Lecar Aix-Marseille, depart from Pôle Q4 station.
Trets to Istres bus services, operated by Ouest Étang, arrive at Les Carmes station.
The distance between Trets and Istres is 56.8 km. The road distance is 71 km.
You can take a bus from Pôle Q4 to Les Carmes via Sous Préfecture and Gare Routière Salon in around 3h 23m.