Direct (nonstop) flights from San Francisco to Carlsbad

1 airline flys nonstop from San Francisco International (SFO) to McClellan-Palomar Airport (CLD). It's 423 miles (680 km), about 1h 50m in the air. Operated by United Airlines.

SFO
San Francisco International
🇺🇸 San Francisco, USA
CLD
McClellan-Palomar Airport
🇺🇸 Carlsbad, USA
Flight Time
1h 50m
Distance
423 mi
680 km
CO₂/pax
78 kg
−125 kg vs. layover
Airlines
1
United Airlines
Time Diff
Same timezone
Operated by United Airlines United Airlines

Route data last updated: May 30, 2026

Airlines with non-stop flights

United Airlines UA United Airlines
Route
SFO → CLD
Flight Time
1h 50m
Distance
423 mi

Alternative Routes

Other ways to fly from San Francisco to Carlsbad with one stop · direct emits 78 kg CO₂ per passenger

SFO PHX (Phoenix) CLD
Leg 1: 2h 12m (652 mi) Leg 2: 1h 19m (306 mi) Total: ~3h 31m 🍃 203 kg CO₂ (+160% vs. direct)
Leg 1
SFO → PHX
2h 12m · 652 mi
View SFO to PHX flights →
Leg 2
PHX → CLD
1h 19m · 306 mi
View PHX to CLD flights →
SFO DEN (Denver) CLD
Leg 1: 2h 47m (967 mi) Leg 2: 2h 44m (839 mi) Total: ~5h 31m 🍃 343 kg CO₂ (+340% vs. direct)
Leg 1
SFO → DEN
2h 47m · 967 mi
View SFO to DEN flights →
Leg 2
DEN → CLD
2h 44m · 839 mi
View DEN to CLD flights →

Frequently Asked Questions

How long is the direct flight from San Francisco to Carlsbad?

A nonstop flight from San Francisco (SFO) to Carlsbad (CLD) takes approximately 1 hours and 50 minutes. The distance is 423 miles (680 km).

Which airlines fly nonstop from San Francisco to Carlsbad?

Just United Airlines.

Is there a nonstop flight from San Francisco to Carlsbad?

Yes. 1 airline: United Airlines.

How far is San Francisco from Carlsbad?

The flight distance from San Francisco to Carlsbad is 423 miles (680 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.

What type of aircraft flies from San Francisco to Carlsbad?

At 1h 50m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.

What is the carbon footprint of a flight from San Francisco to Carlsbad?

Roughly 78 kg CO2 per passenger one-way. That's about the same as driving 390 km.

Is the return flight from Carlsbad to San Francisco also nonstop?

Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.

When is the cheapest time to fly from San Francisco to Carlsbad?

Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.

How early should I arrive at San Francisco International for this flight?

1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.