Distance between cities › USA › California › SAN, CA › Distance from San Diego International Airport to Custer Book Hotels

Distance from SAN Airport to Custer, MT

Distance

1,352 mi

Time

23 hours 56 mins

Gas Cost

$126 - $245

Helpful Inaccurate

There are 1,057 miles from San Diego International Airport (SAN) to Custer in northeast direction and 1,352 miles (2,175.83 kilometers) by car, following the I-15 route.

SAN Airport and Custer are 23 hours 56 mins far apart, if you drive non-stop .

This is the fastest route from SAN Airport to Custer, MT.

Please note the time difference between SAN Airport and Custer, MT is 1 hour. The current time in SAN Airport is 11:24 am and the current time in Custer is 12:24 pm.

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Lowest Price Rental Cars in SAN Airport

Planning on renting a car to go from SAN Airport to Custer, MT? Here there are some offers to rent a car in SAN Airport

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in San Diego International Airport »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 54.29 gallons of gas to cover the route between SAN Airport and Custer, MT.

The estimated cost of gas to go from SAN Airport to Custer is $177.10.

During the route, an average car will release 1,063.70 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between SAN Airport and Custer, MT

If you want to meet halfway between SAN Airport and Custer, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.114324 and -111.669647, or 40º 6' 51.5664" N, 111º 40' 10.7292" W. This location is 675.94 miles away from SAN Airport and Custer, MT and it would take approximately 11 hours 58 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Spanish Fork, UT, situated 699 miles from SAN Airport and 654 miles from Custer, MT. It would take 12 hours 16 mins to go from SAN to Spanish Fork and 11 hours 43 mins to go from Custer to Spanish Fork.

Major City Closest to Halfway Point

The major city closest to the halfway point between SAN Airport and Custer, MT is Provo, UT, situated 707 miles from SAN Airport and 647 miles from Custer, MT. It would take 12 hours 26 mins to go from SAN to Provo and 11 hours 36 mins to go from Custer to Provo.

Major Cities Along the Route

Some other major cities along the route include Escondido, CA, North Las Vegas, NV, Billings, MT, Murrieta, CA, West Jordan, UT, Salt Lake City, UT, Victorville, CA, Temecula, CA, Las Vegas, NV, San Diego, CA and San Bernardino, CA.