"Over all, declining fuel prices are a very good thing for an airline including Southwest Airlines," he said in an interview.
Other airlines, including Singapore Airlines, have said they were likely to make commitments to the plane.
It is served by dozens of airlines (including Alaska Airlines, headquartered in the city), many of which are cargo carriers.
According to the New York Times, a group of airlines including Air France, KLM, Iberia, IAG Cargo, Singapore Airlines and Qantas also signalled last week that they would no longer transport such cargo.
Other affected airlines include Lufthansa, United Airlines and Cathay Pacific Airways.
Several airlines, including Lufthansa, complied with Israel's request.
Some airlines, including US Airways, have done so more than once.
Most large airlines, including Delta, oppose the change.
Other airlines, including Iberia Airlines, Delta and American Airlines, require a connection, with higher fares.
A number of airlines, including Eastern and Pan American, collapsed.
Martin: Major airlines including American and Delta serve St. Maarten/St.
