Originally Posted by SchmeckFlyer
How exactly would the marriage be licensed? Under what legal jurisdiction? Who would be empowered to perform the ceremony and seal the contract? Would such a person even have such authority in the respective legal area? Are commercial airliners even licensed as places to perform legal marriage vowes? Would such a marriage be recognized anywhere in the world, imagining many authorities would have raised eyebrows wondering about such a marriage?
Besides the completly unromantic and impractical notion of getting married aboard a scheduled commercial airliner, FIRST or not, the problems of doing so seem more of a hassle than is worth dealing with for minimal novelty it receives. Besides, FIRST is so cramped; where would you stand? In the galley? Look honey... engine roar as music, reheated food for our reception, and a narrow 2m flat seat in full view of 13 other people for our wedding night adventures.

Bah humbug!
I seem to remember a wedding taking place on the Stratosphere roller coaster in Vegas, while in motion. Hardly practical. And if I remember correctly most US states recognise any wedding anywhere so long as it is legal, so on a plane flying over Vegas would be fine. Try the LHR-LAX: I believe that flys over Nevada. You could take the celebrant on your 2-4-1.
For heaven's sake, if you can get married by a Klingon...