Uhm...You can bring anything you want if you have a fridge.

What about Jerky, cooked eggs, dried fruits, nuts, avocados, fruits, raw vegetables, pre-cooked soup/broth, sausages or meatballs, cold pre-cooked meat, cured meat or fish, some dark chocolate, raw cheese & yogurt (if you consume dairy) or nut cream.

I would pack a travel cooler full with non-liquid items to bring on the plane, then keep in your hotel fridge and also bring some canned sardines , nuts, seeds and jerky in your suitcase. You can bring what you want for the day down with you since you say you can't go back to your room all day. I would make the priority proteins and fats, of course, so here are some ideas: cold roast meats that you prepared ahead of time at home, cold baked salmon, smoked salmon, hard boiled eggs, salami, cold roasted chicken...you could fill your cooler with individual servings of meats! Maybe make a nice fatty dressing as well, and combined with the salads provided, you should be able to create satisfying meals away from home. You could also bring cans of coconut milk for tea and coffee to add some fats. or to mix with chia seeds for a pudding.

I've been paleo for about a year and I've gone on at least 15 conferences/trips since then. I don't cheat at conferences as it isn't usually worth it for me.

If you have a fridge and a grocery store within walking distance, you're good. Olives, canned sweet potatoes (I asked and the deli opened the can and put it in a resealable container for me!), hard boiled eggs, prosciutto, salad, smoked salmon, etc. That stuff is great for dinner or breakfast.

Last time I didn't have a fridge I was at a week-long workshop in the middle of nowhere (staying in a dorm, no good restaurants, etc) and I practically lived on avocados and canned sardines, but I lived. I don't focus so much on eating "real good food" as I do avoiding bad food since it's just for a short period of time.

Also those pouches of tuna in olive oil are good and it's really easy to stick a ton of them in your bag without adding weight or bulk.

I consume heavy cream so one tactic I employ if I'm without a refrigerator and think lunch is going to be only sandwiches or pizza is to have a heavy cream latte in the morning. Lots of coffee shops have heavy cream and will use it in a latte if you ask. That's a ton of calories and will keep you full and not eyeing those disgusting breakfast pastries everyone else is eating for "breakfast."

Beth mentioned IFing which is a great strategy. If you've only been paleo for a month you might still be hungry on a pretty regular schedule, but eventually you may be able to go for 8-12 hours without eating with no problem, which makes travel really easy.

When I'm at the conference during the day I'll bring nuts in my bag in case I get hungry and sneak off to snack on them during the breaks. I'll also pretty unabashedly eat A LOT of the little pats of butter (you know, the ones that say "heavy cream, salt" in the ingredients that they bring everyone else to put on their rolls) on my chicken or salad or whatever they happen to be serving for lunch that I can eat to pack some extra calories in.

No one's ever said "What the hell is wrong with you!?" so my strange diet has never interrupted my networking capabilities. :)

Another tip -- I carry my own To Go Ware bamboo utensils: http://www.to-goware.com/store/cart.php?m=product_list&c=7

No problem getting them through TSA and they work great.

Don't get bogged down with what you might eat over a few days time, but concern yourself with maintaining the overall paleo principles over the long haul. If you can only do "50%" paleo for a few days, just compensate with "100%" paleo when you get back to average it all out.

Minimize your exposure to crappy oils and gluten. Ideally you can keep free of these offenders for the trip. But if that's so troublesome, just minimize them. Figure out which negatively affects you most.

For me, keeping a good balance of fats is key. I'll take a good dose a fish oil with any questionable meal. I'm actually pretty good with gluten/wheat as long as I don't over-do it too much.

I've worked out a scheme when I travel where I skip breakfast (aka travel IF!), eat a paleo lunch (a can of tuna or salmon works; I like Vital Choice's 3.5oz cans with the pop top), and a nice fat (I picked up some individually wrapped coconut butter servings from Artisana, but you could easily make your own), and then go with the flow for dinner. It's not strictly paleo, but I've also made do with just having an ounce or ounce and a half of really dark chocolate.