We caught a bus from Nazare, about 70km north of Lisbon. The journey took 1 hour 50 minutes. I would not recommend it with an 18month old!
But other wise it is a great stress free way to get in to the capital without the hassle of driving & finding parking
Someone told me buses are better (in the sense of faster) than trains for getting out of Lisbon. For my two out-of-town trips (to Fatima and Algarve) I was always pointed towards the Arco do Cego bus station, in Avenida Duque de Avila (metro:Saldanha) Many long-distance buses leave from there, especially rede-extress buses - but also Tejo and Eva. I found it excellent: we never booked anything in advance - and always found seats. The pitfall is that people there don't often speak English... so we had to rely on broken Spanish and Italian to be understood. Still, it was no problem.
We took a tour bus to get to Lisbon. The bus left Salamanca early in the morning (around 6:00am) and we arrived in Lisbon in the afternoon. In Lisbon, we went to a few places by bus, but also did a lot of walking in the city. We went back to Salamanca by bus too.
There is a bus system in Lisbon, but we didn't use it because we had our own tour bus. But the sheet that our guide gave us says that the bus line is divided into zones, and that although you can buy a 10-ticket pack, you can only use that pack for the bus zone you buy it from.
Yellows buses are very frecuent and there are also night buses. They are expensier than Metro, but ... they works in a wide part of the city. You will find one that takes you to the very entrance of Castelo Sao Jorge and nearly any place.
You can buy a 1 day (2,35 euros ) or 3 days (5,75 euros) tickets, these tickets are valid also for trams and elevador
From the airport to the city you can take the AeroBus. The airport is very near the city, or you can say is in the city. You can buy the ticket at the bus, and there you can buy a ticket for one (2,35 euros) or three days (5,65 euros). This ticket is valid for all carris (buses and tram). If you want to use also the metro buy the carris/metro ticket for a day of 2,75 euros.
Aeroport - Entrecampos - Campo pequeno - Avda Republica - Saldanha - Picoas - Fontes Pereira - Marques Pombal - Avda. Liberdade - Restauradores - Rossio - Plaza Comercio
Departs every 20 minuts. from 7:45 to20:45
When you go out of the airport, on the left side, you’ll find the bus stop that takes you to the city. The ticket is about 3.50 euros. It takes you to the main parts of the city (Marques de Pombal, Av Libertad, Rossio, Praça do Comercio). It’s the best way.
Another great and reliable way to move around Lisbon is with with the city's buses. The buses are run by Carris.
There are 4 or 7 days turistic passes valid for the buses and the underground. The four day costs 9.95 Euros and the 7 day 14.10 Euros.
If you fly in on TAP Air Portugal, just go out of the airport and look for the Aerobus, which will take you into the center of town (about a 20-40 minute ride depending on traffic). Present your boarding pass to the driver and the ride is FREE. As you can see by the picture, the bus is very spacious and comfortable and I really enjoyed the sights along the way, which gave me a taste of Lisbon and what I would see over the next week.
The buses inside Lisbon are from Carris (more information in www.carris.pt). Carris ofers you several special touristic services with generally good quality. Trams are a nice transportation too. Tram 28 is a postcard of Lisbon. 15 takes you on a nice trip to Belém. St. Justa Tram, Bica Tram, Lavra Tram, are other small nice lines provided.
The buses however are not a very good choice. Some of them don't reach in the schedule, others are always full, and generally they aren't much actractive. Stay with the touristic travels, trams, and subway insted.
Carris has also an interesting museum of old trams near belem.
We mostly used the bus. It's a very cheap way to travel! A single ticket that you buy from the driver will cost you 80 escudos. If you buy tickets up-front you'll pay only 90 escudos for a round-trip! Tickets are only valid as long as you follow the same line. If you change lines you have to pay again. Tickets are valid in the busses as well as in the trams.
The picture is taken inside one of the busses.
The bus is a good way to move within the city even if I prefer the subway and the tram. Buses get to crowded at rush hour and get uncomfy if it's hot.
Carristur offer a very similar sightseeing run to CityLine. There terminal is a Praca do Comercio but you can also get on and off at any of their stops around the city.
Bus goes from and to everywhere... so try this link