Distance From Thorn Airport to San Diego International Airport

The distance from Thorn Airport () to San Diego International Airport (SAN) is 1837 miles or 2956 kilometers or 1595 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Custer ( United States ) to San Diego ( United States )?

A one-way nonstop (direct) flight between Custer and San Diego takes around 4 hours 13 minutes.

Estimated flight time from Thorn Airport, Custer, United States to San Diego International Airport, San Diego, United States is 4 hours 13 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - SAN

Kilometers		2956 km
Statute Miles		1837 miles
Nautical Miles		1595 nm
Avg. Time of Flight		4 hours 13 minutes

Thorn Airport to San Diego International Airport Flight Route Map - to SAN Flight Path

Location of Thorn Airport & San Diego International Airport is given below.
Click the map to view Custer to San Diego nonstop flight path and travel direction.

Click to see flight route on Google Map between Custer, United States and San Diego, United States. .

Nonstop flight route between Custer, United States and San Diego, United States.

Time Difference Between the Airports • - SAN

Time difference between Custer (United States) and San Diego (United States) is 2 Hours.
San Diego time is 2 Hours behind Custer.

Location	Local Time
Custer (United States)	2026-06-21, 18:28:40 CDT
San Diego (United States)	2026-06-21, 16:28:40 PDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Thorn Airport ( / MI19) Custer, United States

Destination

San Diego International Airport (SAN / KSAN) San Diego, United States