Airlines have earned travelers’ ire by charging for things once included in the fare, but some innovations are bringing welcome new perks to flying.
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• American Airlines launched a bag-delivery service in August. For $29.95 (in addition to the $25 checked-bag fee), passengers can have their luggage dropped off anywhere in a 40-mile radius of the airport within four hours of landing.

• Southwest began equipping a handful of planes with seven channels of live television (including CNBC and the NFL Network) and is testing a $3 to $8 charge for the service.

• Never worry about sharing an armrest on Spanish airline Vueling. For $88 each way on international flights, passengers will be guaranteed a vacant seat beside them, along with preferential boarding and free refreshments.

• Australia’s Qantas sells a permanent luggage tag ($52 or 7,000 frequent-flier points) that synchronizes passengers’ boarding-pass information with their baggage, making it faster to check in and harder to lose.

• Korean Air introduced a clever service for winter travelers bound for tropical destinations: free coat storage for five days and $2.25 per day thereafter.

• Hawaiian Airlines offers a complimentary meal and cocktail to coach passengers, but those who really want a jump start on their vacation can buy authentic Hawaiian foods such as Spam musubi ($3) or ramen noodles ($3.50), or even a fresh flower lei ($7), at the Pau Hana snack bar in the galley.