I also go with the cotton knit pants, cotton tee shirt (ither short or long sleeves - depends on weather), and knit jacket or sweatshirt. I usually wear flats that I can kick off easily (my feet usually swell), but I like the idea of wearing my sneakers but having lightweight slipper or slipper socks in the carry on to change into.

Degas, you are too funny. Thanks all for the tips. You are the pros, that is for sure...

Long cotton pants with elastic waist, long sleeved cotton sweater, medium weight socks and slip on shoes, preferably backless.
Once the plane gets going, I'm never hot but often cold.
If I'm flying to Florida from the UK, I keep a pair of capri pants and lightweight top in my carryon and change at the airport. Something that coordinates with the cotton sweater.

I usually wear a comfortable pair of jeans (these are comfortable to me, but I don't wear them tight) or some kind of drawstring waist casual pants in a lightweight twill or something. Then, just some kind of Tshirt or knit pullover and on top of that, a lightweight cotton cardigan sweater. That way, I can take off the sweater if I get too warm, but usually need it on a plane. I tend to wear black Tshirt and sweater, and various color pants (tan, olive green or black). I tend to wear naturals or subdued colors, rather than brights, in general.

I like to wear a pair of mules on the plane (leather, something with a rubber sole that can be a comfortable day time shoe), because they are so easy to slip off your feet whenever you want, and if your feet swell a little, it doesn't matter. I used to wear some kind of tie walking shoes, whatever I had for my trip, and actually read the mules tip on Fodors from someone. It seems obvious, but after I tried it once, I always want to wear mules on the plane.

I wear some shirt that won't wrinkle, a bra with no wire in it (I bought one for this purpose: not setting off the metal detector!), a nice pair of jeans, and high heels.

Jeans are pretty comfy and keep you warm but not too hot, and don't wrinkle; they also take up a lot of space in my suitcase, so I tend to wear them on the days that I'm moving from place to place. Nice stilettos or other high shoes: you can easily slip them off on the plane (also for evacuation slide! don't forget!) but they can really turn the slovenly, just-got-off--a-transatlantic-flight look into a casual but attractive style (and one should always strive to look her best). Perhaps if you are getting a connecting flight at LHR you might not want to do this...although I always do. Especially open-toed open-back shoes will accomodate feet that might have swelled from the altitude as well.

I always feel more confident and adventurous when I know I look my best -- and what other time do you need so much confidence and sense of adventure as when you begin a trip?

We always wear our dressiest outfit on the plane, thus not necessary to pack it (assuming we don't need formal evening wear). My husband wears navy blazer, gray pants, blue dress shirt and black shoes that look like dress shoes but have rubber soles. I wear a wrinkle free (no linen) usually black knit dress with colorful but dark colored blazer. I wear a dress/skirt whenever we fly because the restrooms are so small on planes I don't want my slacks to touch the floor when I sit down...if you catch my drift. I also wear low heels that I take off once the plane takes off and replace with Isotoner slippers or fuzzy socks (slippers are better for the walk to the restroom.) We are then lookin good in case they need someone to move on up to Business or First class...it happens! And those who look like first class get picked for first class.

I don't know how these women do it who wear white on a long flight....I would have dribble, crumbs, etc. all over me after 8 hours. A turtle neck and skirt with an elastic waist often work better than a dress because it gives you more freedom of movement and you don't strangle yourself as you twist and turn trying to get comfy to sleep. I also roll up a beach towel and put rubber bands on each end and put it across my carryon until I get on the plane. Then I use it as a pillow or blanket as I am always cold on a plane. It also comes in handy on a 3 hour layover in the airport. I know I look like one of the geeks, but I always take gloves, thin leather or Isotoners, because the backs of my hands get so cold on the plane. If my hands and feet are cold I can't rest.

Comfort yes. Please, please, please do not wear the sweatsuits...yes they are comfortable, but have a modicum of respect for the fact that you are in public places...that does not seem to matter to most these days, as I have seen people completely change in their seats, torn dirty tee shirts with dirty shorts and stinking tennis shoes worn many times...it is a question of respect for fellow passengers as much as deodorant, spitting, or coughing on them people...reminds me of the threads where people say that they take their worst old ratty clothing on trips to France or Europe...holes in the underwear, whatever...and one wonders where these generalizations about various habits in countries emanates from...all true.

Gold/Plat elite status in addition to not wearing jeans lend themselves to upgrades.

I never wear white ot light colors on a plane. One little air pocket and you've got a coffee stain impossible to get out.

My feet swell a lot on long flights, so I often wear my black sandals with black socks. The sandals close with velcro so can be adjusted for swelling; the socks are to keep my feet warm.

COMFORT COMFORT, like everyone says.
My dad used to wear suits on a plane... from the generation where flying was something special.

We just flew 14 hours from JFK to Dubai and even he wore khaki slacks, simple knit shirt and a sweater.

I can't emphasize the sweater enough. You can take it off, put it on as needed. Emirates airlines CRANKED their airconditioning high!

I always wear my black Chico Travelers on the plane - pants with elastic waist, sleeveless shell, and jacket. Looks dressy, but more comfortable than anything else. Wear black shoes than can be slipped off and take little Isotoner ballet slippers for comfort in flight. Wear Chico's most of the trip as well - with different jackets and shells and scarves. Always feel dressy enough - can dress down for daytime and dress it up with scarf for dinner or theater.

I miss muffin... aaahhhh his leather pants, pink pajamas, and fluffy robe!

I wear my bulkiest items on the plane, to insure the rest of my stuff fits in a carry-on. For exammple, if I had a ski jacket or hiking shoes, those would be worn on the plane and not in my carry-on.

I know I look terrible, but I've had bad experiences with lost luggage in the past, so I'm a little paranoid about it.

I have a comfortable crinkle-cloth pantsuit that services nicely as pajamas for the overnights. It's black, doesn't wrinkle, and with a necklace or scarf works just fine for looking well dressed on arrival. I bought the outfit from TravelSmith.

I always wear dark clothes. They look better with lunch/dinner/red wine, etc. on them if we have a bumpy ride.

I also always wear a Chico's Travelers outfit on the plane. It is the closest to feeling like I am wearing "jammies", so I can relax and sleep. I think they are comfortable and dressy...

Heck...I just strip right down to my birthday suit. I throw my old flannel robe on if it gets cold :)

=D>

Heavens, your question made the front page. :)

I wear a sweatsuit. Sorry if I offend ;) Yoga pants, t-shirt, hoodie sweatshirt, and tennis shoes. Comfy as can be. Don't worry though. All my clothes are clean and I wear deoderant.