What it is Call to book a flight or redeem your miles, or stop by the airport counter, and you could pay an extra $5 to $20.
What's so bad Another coercive fee to keep you online. "It's like being charged to see a teller," says Chris McGinnis, editor of Expedia's Travel Trendwatch newsletter.
Ouch! United charges $15 to book by phone and $20 in person. You'll pay $20 at a Northwest counter. American, Continental and United all charge you $15 to reserve a ticket with miles by phone.
What you can do Learn to love online booking, or stick with more people-friendly airlines like JetBlue and Southwest.