Traveler’s Notes . . .

“Fantasy fares” of as little as $25 round trip to Europe turned out to be a dream come true for customers of United Airlines last week. Reversing course, United said it would honor the 143 tickets sold on its Web site during a 55-minute period when, due to a computer error, flights for international destinations were offered for next to nothing. . . . The “2001 National Park Service Map and Guide” to 365 park sites is available for $4.95, shipping included, from the National Park Society, 5535 Whip Trail, Colorado Springs, CO 80917; tel. (719) 572-5739.