From op.pokemon-tcg.com nationals page:
From the worlds page:
(Emphasis mine)
So, are there two trips per division, one trip per division, or two total?
Top sixteen finishers in each of the 3 recognized age categories receive the following prizes.
1st Place
U.S. National Champion 1st Place Trophy
A combination of 72 booster packs from the Pokémon-e TCG: EX Series
An Invite to the World Championships in August, 2004
A Travel award for you and a guest to the World Championships in August, 2004
A Stage Two VIP Package containing cool Pokémon Merchandise. This package will be awarded upon onsite registration at the World Championship event!
2nd Place
U.S National Champion 2nd Place Trophy
An Invite to the World Championships in August, 2004
A combination of 44 Booster Packs from the Pokémon-e TCG: EX Series
3rd Place
U.S National Champion 3rd Place Trophy
An Invite to the World Championships in August, 2004
A combination of 36 Booster Packs from the Pokémon-e TCG: EX Series
4th Place
An Invite to the World Championships in August, 2004
A combination of 36 Booster Packs from the Pokémon-e TCG: EX Series
From the worlds page:
In addition to invites, many players will also win travel and accommodations for themselves and a guest (for players under 18 years of age, this guest must be a legal guardian) to the World Championships. Travel awards are awarded as follows:
Top player from each age group at Pokémon TCG Gym Challenges
Top two finishers from each age group at Pokémon TCG Stadium Challenges
Top two finishers at the National Championships
Winners from previous World Championships are eligible for travel awards only if Pokémon Organized Play is able to confirm their attendance in advance.
(Emphasis mine)
So, are there two trips per division, one trip per division, or two total?