So long.
3 seconds sound clip from the Planes, Trains & Automobiles (1987) movie soundboard.
You can hear this line at 01:21:39 in the Blu-ray version of the movie.
Quote context
[...]
- Maybe I'll get the chance to meet them someday.
- Okay. Say hello to Marie for me. I feel like I know her.
- Yeah.
- So... Okay. And you have a happy Thanksgiving.
- So long.
- I like... I like me. My wife likes me.
- At the very least, the absolute minimum, you've got a woman you love to grow old with, right?
- I've been pending too much time away from home.
[...]