Flights from Houston Flights to San Diego

Direct flights from Houston to San Diego

Did you mean flights from San Diego to Houston?

Last updated on: 04-02-2026

Houston

United States

IAH

George Bush Intercontinental Airport

San Diego

United States

SAN

San Diego International Airport

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Flight schedule

Distance

1,299 miles · (2,091 km)

Flight time

3 hours and 34 minutes

Airlines

United Airlines

Alliances

Oneworld
SkyTeam
Star Alliance

Classes

Economy
Premium Economy
Business Class
First Class

Aircrafts

Boeing 737 MAX 8
Boeing 737 MAX 9
Boeing 737-800
Boeing 737-900

Houston to San Diego Flight Schedule

Scan through all non-stop flights from Houston to San Diego. The full flight schedule below gives an overview of all non-stop flights from IAH to SAN, which includes the daily timetable of every operating airline for the upcoming 12 months.

Note: for airline-specific flight schedules, please scroll further down.

Return schedule

Best time to visit San Diego

What is the best time to visit San Diego?

☀️ Hot Mediterranean

The Mediterranean regions near San Diego are known for their warm, arid summers, where temperatures often go beyond 30°C (86°F). In some inland spots, the heat can climb even higher, sometimes reaching 40°C (104°F) or more. The winters are pleasantly mild, accompanied by some rainfall. This lovely climate, paired with breathtaking landscapes and bright, sunny days attract visitors from around the globe.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

San Diego is a wonderful place to visit all year long, but spring (March-May) and fall (September-November) are the best seasons to visit. The weather is pleasantly warm during these times, especially since the summers can be quite hot in those regions.

San Diego

SAN

Airlines flying from Houston to San Diego

Airline-specific flight schedules from Houston to San Diego

Currently, there is only one airline operating non-stop flights from Houston IAH to San Diego SAN, which is United Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.

Click an airline below to view their IAH SAN flight schedule.

United Airlines (UA)

United Airlines flight schedulefrom Houston to San Diego

United Airlines is a member of Star Alliance

Return schedule

Houston to San Diego Flights

Flights from IAH to SAN are operated 33 times a week, with an average of 5 flights per day. Departure times vary between 09:30 - 20:10. The earliest flight departs at 09:30, the last flight departs at 20:10. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.

You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).

The fastest direct flight from Houston to San Diego takes 3 hours and 34 minutes. The flight distance between Houston and San Diego is 1,299 miles (or 2,091 km).

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