American Airlines, the world's largest carrier which flies to 250 cities, is not immune to the troubles either.

ECONOMIST: Terrorism’s aftermath | The

American, the only U.S. carrier that flies directly from New York to London's Heathrow Airport, is pushing ahead internationally with plans to expand service to and from Rome, Spain's Barcelona and other European destinations.

FORBES: Magazine Article

The small South Pacific carrier, which flies mostly domestic routes, charges passengers between 2.12 Samoa tala and 2.41 Samoa tala per kilogram, depending on flight length.

BBC: Should heavy travellers pay more?