There are several airlines that operate frequent flights from San Diego (SAN) to Singapore (SIN) including

• Delta Air Lines with 47 flights a week
• United Airlines with 47 flights a week
• American Airlines with 22 flights a week
• Alaska Airlines with 9 flights a week
• Japan Airlines with 9 flights a week

The earliest flight leaves San Diego Intl. Airport at 06:15 and arrives at Changi Airport at 00:20. The last flight of the day departs San Diego at 19:20 and arrives at Singapore at 19:05.

The flight distance from San Diego to Singapore is about 14371 km, the shortest flight is 19 hours 30 minutes with United Airlines.

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