Direct (nonstop) flights from San Diego to Houston
1 airline flys nonstop from San Diego International Airport (SAN) to George Bush Intcntl Houston (IAH). It's 1,304 miles (2,098 km), about 3h 15m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from San Diego to Houston with one stop · direct emits 220 kg CO₂ per passenger
Looking for the return flight?
IAH → SAN: Flights from Houston to San DiegoOther direct flights from San Diego
Direct flights from Houston (IAH)
Frequently Asked Questions
How long is the direct flight from San Diego to Houston?
A nonstop flight from San Diego (SAN) to Houston (IAH) takes approximately 3 hours and 15 minutes. The distance is 1,304 miles (2,098 km).
Which airlines fly nonstop from San Diego to Houston?
Just United Airlines.
Is there a nonstop flight from San Diego to Houston?
Yes. 1 airline: United Airlines.
How far is San Diego from Houston?
The flight distance from San Diego to Houston is 1,304 miles (2,098 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from San Diego to Houston?
At 3h 15m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from San Diego to Houston?
Roughly 220 kg CO2 per passenger one-way. That's about the same as driving 1,100 km.
Is the return flight from Houston to San Diego 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 Diego to Houston?
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 Diego International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.