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Cheap flights from Houston to San Diego

Houston
HOU
San Diego
SAN

Flight deals from Houston to San Diego

Below you can see the best deals on flights Houston — San Diego for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 19 August, from $80.

Top 10 cheap flights from Houston to San Diego

F9
$ 80

Houston — Las Vegas

19:5521:12
19 Aug 2026
3 h 17 m
Direct flight
F9
$ 80

Houston — Las Vegas

13:5315:05
19 Aug 2026
3 h 12 m
Direct flight
F9
$ 86

Houston — Denver

11:3513:20
22 Aug 2026
2 h 45 m
Direct flight
F9
$ 86

Houston — Denver

22:0423:53
24 Aug 2026
2 h 49 m
Direct flight
F9
$ 86

Houston — Denver

11:3513:20
24 Aug 2026
2 h 45 m
Direct flight
F9
$ 86

Houston — Denver

06:3008:14
24 Aug 2026
2 h 44 m
Direct flight
F9
$ 93

Houston — Phoenix

11:5912:42
19 Aug 2026
2 h 43 m
Direct flight
F9
$ 100

Houston — Denver

11:3513:20
22 Aug 2026
2 h 45 m
Direct flight
F9
$ 100

Houston — Denver

11:3513:20
24 Aug 2026
2 h 45 m
Direct flight
F9
$ 100

Houston — Denver

06:3008:14
24 Aug 2026
2 h 44 m
Direct flight

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Houston — San Diego flight

This page presents the current flight options from Houston to San Diego. The distance between the cities is 2,098 km, and with up to 17 flights per week, it's easy to find a convenient departure time.

Flights on this route are operated by United Airlines. Since ticket prices are dynamic, we recommend using the low-price chart and calendar to find the best deals for your preferred dates.

Flight ticket prices by day: Houston — San Diego

Below is a calendar of the lowest flight ticket prices for Houston — San Diego by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $80 in ,, and the most expensive are around $336 in y. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Houston → San Diego, average one-way price

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$203lowMay$245mediumSep$203low
Feb$197lowJun$287highOct$215low
Mar$275highJul$299highNov$227medium
Apr$257mediumAug$215mediumDec$281high

Some values are estimated based on seasonality.

When to fly

San Diego enjoys a mild climate, with August and September being the warmest months, reaching temperatures up to 26.1°C. The coolest and rainiest months are February and March, when rainfall peaks and temperatures drop to 9.2°C.

In terms of flight costs, the most budget-friendly months are July, with tickets starting $78, and August — $79. Prices peak in April, when the minimum fare rises $246.

The best time for your trip is July, offering the perfect balance of low prices and sunny weather. It's best to avoid booking for the spring months if you're looking to minimize travel expenses.

Temperature · San Diego

Dry and wet days · San Diego

Wind speed and direction · San Diego

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How to get the best deal on a Houston — San Diego ticket

  • Research the options for how to get to the airport in Houston in advance to arrive for check-in without rushing or extra expense.
  • Use the low-price calendar on this page: flights on this route in July can cost $89.
  • Since United Airlines is the primary carrier, check their baggage and carry-on rules for your chosen fare in advance.
  • Plan your return transfer ahead of time by exploring ways on how to get from the airport in San Diego to your hotel or the city center.

Airlines

Regular flights between the cities are provided by United Airlines (UA), which operates about 17 flights per week. The route is primarily served by direct flights, allowing you to reach your destination as quickly as possible. A detailed flight schedule and information on connection options are available in the interactive list below.

  • United AirlinesUA
    17x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight IAH → SAN17x/week
      Duration
      3h 21m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Houston — San Diego route

Flights Houston — San Diego depart from George Bush Intercontinental Airport and William P. Hobby Airport and arrive at San Diego International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure airports
Arrival airports

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Frequently asked questions about the Houston — San Diego flight

How long is the flight from Houston to San Diego?

With an average distance of 2,098 km, a direct flight takes about 2 hours and 30 minutes, depending on weather conditions and the type of aircraft.

Which airlines fly this route?

Regular flights between the cities are operated by United Airlines (UA), providing consistent flight frequency throughout the week.

Which airport will I arrive at?

All flights on this route arrive at San Diego International Airport (SAN).

When is the best time to buy tickets to save money?

The most affordable fares are typically seen during the summer months; we recommend starting your search 4–6 weeks before your planned departure.

How can I find the cheapest ticket from Houston to San Diego?

Airfares are constantly changing. You can track the latest minimum offers for your dates using the low-price calendar and price trend chart on this page.

Where else you can fly from Houston

See all

Where else you can fly from San Diego

See all

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