Nonstop flights from San Diego to Houston

2 airlines fly from San Diego (SAN) to 2 Houston airports (IAH and HOU), with up to 7 flights a day.

SANIAH

Routes

2 airport pairs

When they leave

San Diego time

6:20a8:40pFirst departure 6:20 AM, last 8:40 PM

Four in the morning, 6:20 AM to 10:13 AM, then four in the afternoon, 12:01 PM to 4:25 PM, then two in the evening, 7:25 PM to 8:40 PM.

Every flight

Earliest first

6:20 AM→11:45 AMSAN to HOUSouthwest AirlinesBoeing 737-700Mon, Fri
6:20 AM→11:45 AMSAN to HOUSouthwest AirlinesBoeing 737Sun
6:20 AM→11:40 AMSAN to HOUSouthwest AirlinesBoeing 737 MAX 8Tue, Wed, Thu
8:00 AM→1:21 PMSAN to IAHUnited AirlinesBoeing 737Daily
8:35 AM→1:50 PMSAN to HOUSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
10:13 AM→3:34 PMSAN to IAHUnited AirlinesBoeing 737 MAX 9Daily
12:01 PM→5:22 PMSAN to IAHUnited AirlinesBoeing 737Daily
12:20 PM→5:35 PMSAN to HOUSouthwest AirlinesBoeing 737Tue, Wed, Thu
3:04 PM→8:19 PMSAN to IAHUnited AirlinesBoeing 737Daily
4:25 PM→9:45 PMSAN to HOUSouthwest AirlinesBoeing 737-700Mon, Fri, Sun
7:25 PM→12:35 AM⁺¹SAN to HOUSouthwest AirlinesBoeing 737 MAX 8Thu
8:40 PM→1:55 AM⁺¹SAN to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Fri, Sun

Schedules last checked Sep 19, 2026. Times are local.

Flying from San Diego to Houston

United Airlines flies most often, 4 times a day on the Boeing 737 and Boeing 737 MAX 9. Southwest Airlines flies 18 times a week on the Boeing 737 MAX 8, Boeing 737 and Boeing 737-700.

Flights run every day of the week, from 4 on Saturdays to 7 on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays and Sundays. The first arrival in Houston is at 11:40 AM and the last at 1:55 AM the next day.

SAN to IAH is the busiest airport pair, with 28 flights a week, then SAN to HOU with 18.

Flying back, Houston to San Diego has 48 nonstop flights a week.

Return flights

Houston to San DiegoView

Find the cheapest day to fly from San Diego to Houston.

Schedules as of Oct 9, 2026.