No way. There's a big difference between the two. Ships: 10 days on an open-air deck. Planes: Two or three hours in a tightly enclosed capsule.
If you can't refrain from smoking for a few hours, you really need to get help for your habit.
That's why I don't spend money flying anymore. It's not that I CAN'T go without smoking, it's the principal of it.
All my life I was able to fly and grab a quick cigarette up there. I flew a few times after the smoking ban, but then said "That's it. I will take a Van!" Spend my money and be comfortable.
I do refrain from smoking, for days at a time when on a canoe trip.
I also fly for business.
Like SheLion says, it's the principle of the thing. The federal govt shouldn't be telling the airlines whether or not to permit smoking on their flights.
If I go for pleasure, and it's within 10 hours drive, I drive.
Back when smoking was permitted on some flights I might have flown if it was 8 hours driving. Now, if it's just me, I would rather drive 18 hours than fly, if it's for pleasure.
Of course, that isn't just due to the nonsmoking flights, it's also due to the ridiculous security measures at airports.