Distance between San Diego, CA (SAN) and Carlsbad, NM (CNM)
Flight distance from San Diego to Carlsbad (San Diego International Airport – Cavern City Air Terminal) is 755 miles / 1214 kilometers / 656 nautical miles. Estimated flight time is 1 hour 55 minutes.
Driving distance from San Diego (SAN) to Carlsbad (CNM) is 884 miles / 1423 kilometers and travel time by car is about 14 hours 55 minutes.
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San Diego - Carlsbad
Map of flight path and driving directions from San Diego to Carlsbad.
Shortest flight path between San Diego International Airport (SAN) and Cavern City Air Terminal (CNM).
How far is Carlsbad from San Diego?
There are several ways to calculate distances between San Diego and Carlsbad. Here are two common methods:
Vincenty's formula (applied above)- 754.594 miles
- 1214.401 kilometers
- 655.724 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.
Haversine formula- 753.025 miles
- 1211.877 kilometers
- 654.361 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
Airport information
| A | San Diego International Airport |
|---|---|
| City: | San Diego, CA |
| Country: | United States  |
| IATA Code: | SAN |
| ICAO Code: | KSAN |
| Coordinates: | 32°44′0″N, 117°11′24″W |
| B | Cavern City Air Terminal |
|---|---|
| City: | Carlsbad, NM |
| Country: | United States |
| IATA Code: | CNM |
| ICAO Code: | KCNM |
| Coordinates: | 32°20′15″N, 104°15′46″W |
Time difference and current local times
The time difference between San Diego and Carlsbad is 1 hour. Carlsbad is 1 hour ahead of San Diego.
Time Difference
San Diego, CA
Carlsbad, NM
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 130 kg (287 pounds).
Frequent Flyer Miles Calculator
San Diego (SAN) → Carlsbad (CNM).
In total
Round trip?