According to the Airline Global Distribution system, she boarded the flight and he didn't.
He was busy being dead.
“Kiss Kiss, Bye Bye” · Season 6, Episode 13
In this episode: Sara Sidle (3), Gil Grissom (1), Catherine Willows (1), Nick Stokes (1), Greg Sanders (1), David Hodges (1), Archie (1)
Sure, especially if Lois was an accomplice, or dare I say, a killer.
Well, I don't see homicide anywhere on her schedule.
The canary diamond.
Wanna bet the birdie sings in the key of GSR?
[seeing Hodges color in his grey hair with a marker pen]: Vanity, thy name is Hodges.
This isn't what it looks like. I actually like my grey hair, the few that I have.
Hodges, don't you know that grey hair can be very attractive? [Grissom and Hodges look at her suggestively] The, uh, ring?
These quotes come from Wikiquote's CSI: Crime Scene Investigation pages and are available under the Creative Commons Attribution-ShareAlike License.