See Brunei#Get in for Brunei's entry requirements.
By plane
Brunei International Airport (http://www.civil-aviation...) is the main airport in Brunei. See Brunei#By plane for airline details.
Getting there/away: A taxi from the airport to the city centre takes 20 minutes and costs around B$25. Some hotels like Grand City Hotel may provide complimentary transport between airport and hotel. A covered walk down to the end of the car park away from the Terminal turn right when exiting from Arrivals leads to a bus stop for Purple buses to the city centre B$2.
By ship
To/from Temburong:
Speedboats leave for Bangar in Temburong District from the jetty near the foodstalls at Jalan Residency just over the bridge across Sungai Kianggeh to the east of the city centre. Regular boats run between Bandar and Bangar throughout the day.To/from Limbang:
Speedboats leave for Limbang in Sarawak from the ferry terminal at Jalan McArthur in the city centre. The boats leave when they are full.To/from other destinations:
Boats to other destinations like Labuan, Lawas, Sundar and other towns in Sarawak leave from the Serasa Ferry Terminal in Muara. With a change of boats in Labuan, you can even make it to/from Kota Kinabalu, Sabah, in a day.Please note that the ferry terminal is quite a distance from actual Muara town where the container port is located. The terminal is about 25km from Bandar Seri Begawan.
Speedboats also operate between Bandar Seri Begawan jetty in town and Limbang. They depart only when full.
Getting there/away: Purple buses leave for the ferry terminal from the Bandar Seri Begawan bus terminal in Jalan Cator. Please note that not all Muara buses go to Serasa.
The main ferry terminal in Brunei is the Serasa Ferry Terminal at Muara, where there are several ferries daily to/from Labuan and one daily ferry each to/from Lawas and Sundar, both in Sarawak.
By road
All main roads in Brunei save for those in isolated Temburong Districts lead to Bandar Seri Begawan. The main road into/out of Bandar connects to the coastal road to/from the Sarawak border via Tutong, Seria and Kuala Belait. Other main roads lead to Muara and Kuala Lurah where there is a border crossing into the Limbang division of Sarawak. Take this road if you are driving to Temburong but you will have to go through two sets of immigration checkpoints - at Kuala Lurah Tedungan on the Sarawak side and Puni Pandaruan on the Sarawak side - before you reach the district administrative center, Bangar.
By bus
The main bus terminal where all long-distance and local buses leave from and arrive is at Jalan Cator in the city centre. It occupies the ground level of a multistory carpark.
To/from Seria:
Regular buses leave for Seria where you can change buses to Kuala Belait and onward to Miri that leave from the main bus terminal. They usually display the departure time on the windscreen. Journey time is about one hour and the fare is B$6 one way. If you want to go all the way to Miri, make sure you start early. The Miri Belait Transportation Company runs buses between Kuala Belait in Brunei and Miri in Sarawak, Malaysia. The journey requires a bus change at the Sungei Tujoh border checkpoint. Through tickets are however available at RM12.20 from Miri. Note that there have been reports that buses from Miri occasionally refuse to go all the way to the border and stop just before the Asean Bridge at Kuala Baram because of the high toll charge of the bridge. You may have to use taxis to complete the final 5km between the border and the bridge. From Kuala Belait, there are buses to Seria B$1 where you can change to another bus for Bandar Seri Begawan B$6. The entire journey takes about 5 hours and there are only a few buses each day operating on each part of the journey, so start early if you are travelling from Miri to Bandar Seri Begawan or vice-versa.To/from Kuala Lurah:
Local purple buses run from the bus terminal right up to the Kuala Lurah checkpoint throughout the day. Journey is about half hour and fare is B$1 one way. At Kuala Lurah, walk across the border and either catch a bus or taxi into Limbang.To/from Muara:
Regular buses depart from the bus terminal, including some direct non-stop buses, to Muara. Not all Muara buses go to the Serasa Ferry Terminal so check before boarding. Take bus #39 to Pekan Mura and then get ticket stamped and board bus 33 that will take you to Serasa Ferry Terminal.