私たちが搭乗した飛行機はサンフランシスコ行きだった。

The plane we boarded was bound for San Francisco.

私(わたし)たちが搭乗(とうじょう)した飛行機(ひこうき)はサンフランシスコ行(い)きだった。

Watashitachi ga tōjōshita hikōki wa Sanfuranshisukoiki datta.

私たち (わたしたち、わたくしたち)

we; us

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

搭乗 (とうじょう)

embarkation; boarding (an aeroplane, airplane)

飛行機 (ひこうき)

aeroplane; airplane; aircraft

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: シ、わたくし、わたし

Meanings: private, I, me

Reading: トウ

Meanings: board, load (a vehicle), ride

Readings: ジョウ、ショウ、の.る、 -の.り、の.せる

Meanings: ride, power, multiplication, record, counter for vehicles, board, mount, join

Readings: ヒ、と.ぶ、と.ばす、 -と.ばす

Meanings: fly, skip (pages), scatter

Readings: コウ、ギョウ、アン、い.く、ゆ.く、 -ゆ.き、 -ゆき、 -い.き、 -いき、おこな.う、おこ.なう

Meanings: going, journey, carry out, conduct, act, line, row, bank

Readings: キ、はた

Meanings: loom, mechanism, machine, airplane, opportunity, potency, efficacy, occasion