From where? There is no Airport in Pasadena. You would have fly into LAX or Burbank Airport depending on where you are coming from.
Ontario Airport is also available. Might be cheaper, too. Depending on time of day, traffic from there can be much lighter.
There is no airport in Pasadena so you'll have to either come via LAX or Burbank or l Longbeach and drive/uber to Pasadena.
I agree with Diane Jones about airports, adding that the number of flights into Burbank are limited when compared to LAX. Shuttle service (Super Shuttle, etc) is decent from LAX.
There's not enough info here to answer this for you.
I drove so im not sure, you can google it
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