Expansion of interline ticketing eases changes of e-tickets.(Going Places)(Trip tips)

Byline: George Hobica and Kim Liang Tan Daily Herald Correspondents

Delta Air Lines is the latest airline to join American Airlines' interline electronic ticketing service. Travelers can now use a single electronic ticket when their itineraries include travel on both carriers.

American also offers interline e-ticketing with most major U.S. airlines, including Alaska Airlines, Continental Airlines, Northwest Airlines, US Airways and United Airlines. Delta also offers interline e-ticketing with Northwest and United.

Interline e-tickets can be issued by any of the participating airlines through their individual reservation centers, airports and ticket office locations. Interline e-ticketing allows passengers to …