Bus stations in Lisbon

Both companies are similar but we prefer Redeexpressos.
Redeexpressos is the original national bus carrier with more destinations.

The two bus terminal options in Lisbon:

From your hotel walk north to the Metro station at Marques de Pombal ( it's on the outer ring of the traffic roundabout).
Take the Blue line to Reboleira , get of at Jardim Zoológico ( Sete Rios) walk to Sete Rios bus terminal ( it's south of the Metro station, it's enclosed, the bus platforms are not visible from the outside)

Or

From your hotel walk north to the Metro station at Marques de Pombal ( it's on the outer ring of the traffic roundabout).
Take the Blue line to Reboleira, get of at São Sebastião ( it's only two stops) transfer to the Metro Red line to the airport get of at Oriente.
Go upstairs to ground level, walk to the north side you'll see the buses, the bus platforms are outdoors ( the south side is a shopping mall).

Even though going to Sete Rios seems more direct we prefer to go to Oriente station.

Thank you for your reply.

So, Rede Expressos bus company's pulldown menu for Lisbon stations are:
Lisbon(East), Lisbon(Sete Rios), Lisbon(Sintra), Lisbon(all seasons)

It looks like Lisbon(East) is same as Lisbon Oriente station? I just wanted to double check.

Yes, Oriente is just Portugese and Spanish for East.

It is interesting because my English language version of the Rede Expressos website gives the choices as Oriente, Sete Rios, Sintra and Todas as estacoes.

The last would translate as all bus stations if it was not spelled wrongly -it should be estacao- that would give the three prior stations!!

I am assuming my Portugese- English dictionary is correct in sorting out the spellings.

Irrespective 'all bus stations', not 'all seasons' was the intended meaning. So if you chose that it would give departures from all 3 bus stations.

I didn't know that subtlety as I know that Todas means 'all', so assumed the second word was right.

That is what using pidgin Portugese does for you!! Every day is a schoolday.

Thank you so much for explanations :)
As of today, rede expressos does not let me book past July 1 for travel from Lisbon to Albufeira.
I thought that was unusual...

Jungnampl
Make sure you're on the official Redeexpressos site , it should display Lisboa ( Oriente).
Lisboa East looks suspicious to me , I wouldn't book on a website that displays Lisboa East.
Being on the official site is crucial since they will ask personal info.

Tickets are only available a maximum of 30 days before departure, sometimes less - when changing from winter to summer schedules, stat holiday,etc.

Ins31c
Oriente has more than one meaning, depending on the phrasing it can mean something different than east.
Portuguese usually use the word "Leste" to mean east.
Estações is the plural of estação.
Estações can also means seasons.

The fact that the website has such poor translations - Oriente as East and Estações as Seasons - reinforces my suspicions that it's NOT a legitimate site.

Oh I see.
I do see Lisboa (Oriente) on a site https://rede-expressos.pt/en.
Thank you for all your help!!