1.   And how would he sort out the issue of liability in a crash caused by a pilot from one of the other partner airlines?

2.   Antitrust immunity allows partner airlines to jointly set ticket prices and create schedules that complement each other.

3.   But United partner airlines will fill the slack by adding enough daily flights at both airports to keep the number of Los Angeles departures the same.

4.   Most interlock, so one can accumulate miles, or points, in one program by spending money on a partner airline, hotel or rental car company.

5.   Since then, the skies have grown more crowded with larger United States airlines that, in many cases, offer service with foreign partner airlines.

6.   The most commonly used combination of partner airlines is Lufthansa, Air Lauda and Thai Air, United says.

7.   The partner airlines thus may not necessarily sell their tickets on the same flight for the same price.

8.   Possible options include using managers as crew, or hiring crews from partner airlines.

9.   Passengers will be diverted to flights on Air France, Delta Airlines and other partner airlines, Korean Air said.

10.   Potential partner airlines for TAP include private Portuguese carrier Portugalia, the statement said.