If you want to know how far it is between San Diego and Kauai, the straight line distance is 2,684 miles
or 4,320 kilometers
If you are a pilot flying a private plane, you can fly straight from San Diego, CA to Kauai for a total flight time of 5 hours, 52 minutes
Book a flight:
If you're a traveler planning a trip and you want to book a commercial flight, you can try searching for flights between SAN and LIH.
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San Diego to Kauai.