Usage note
飞行表示在空中飞，也可指飞机飞行。
fēi xíng biǎo shì zài kōng zhōng fēi， yě kě zhǐ fēi jī fēi xíng。
飞行 means to fly in the air, often referring to airplane flight.
Context note
飞行常用于飞机、鸟和旅行。
fēi xíng cháng yòng yú fēi jī 、 niǎo hé lǚ xíng。
It is often used with planes, birds, and travel.
5 examples
飞机开始飞行。
fēi jī kāi shǐ fēi xíng。
The plane started flying.
鸟儿正在飞行。
niǎo ér zhèng zài fēi xíng。
The birds are flying.
飞行很安全。
fēi xíng hěn ān quán。
Flying is very safe.
飞行时间不长。
fēi xíng shí jiān bù cháng。
The flight time is not long.
他喜欢看飞行。
tā xǐ huan kàn fēi xíng。
He likes watching flight.
5 mini stories
他第一次坐飞机，觉得飞行很有趣。
tā dì yī cì zuò fēi jī， jué de fēi xíng hěn yǒu qù。
He took a plane for the first time and found flying interesting.
鸟儿在天空中飞行。
niǎo ér zài tiān kōng zhōng fēi xíng。
The birds are flying in the sky.
老师给大家讲飞机飞行的过程。
lǎo shī gěi dà jiā jiǎng fēi jī fēi xíng de guò chéng。
The teacher explained the process of airplane flight.
飞行中的窗外很漂亮。
fēi xíng zhōng de chuāng wài hěn piào liang。
The view outside during the flight is beautiful.
孩子问飞机为什么能飞行。
hái zi wèn fēi jī wèi shén me néng fēi xíng。
The child asked why airplanes can fly.
Mini dialogue
鸟儿飞行
A
看，鸟儿在天空飞行。
Kàn, niǎor zài tiānkōng fēixíng.
Look, the birds are flying in the sky.
B
它们飞行得真自由。
Tāmen fēixíng de zhēn zìyóu.
They fly so freely.
飞行时间
A
飞机要飞行多久？
Fēijī yào fēixíng duōjiǔ?
How long will the plane fly?
B
飞行时间大约两个小时。
Fēixíng shíjiān dàyuē liǎng gè xiǎoshí.
The flight time is about two hours.
Related words and contrasts
similar
飞翔
fēixiáng
to fly (often gracefully, like a bird)
飞翔 emphasizes the graceful motion of flying, often used for birds.
opposite
降落
jiàngluò
to land; to descend
降落 is the opposite of 飞行, meaning to come down to the ground.
related
飞机
fēijī
airplane
飞机 is the vehicle that does 飞行.