$137 Cheap Flights from Houston (HOU) to San Diego (SAN)

View $137 flight on Mon, Jan 5, 2026Opens in a new window

Popular airlines from Houston William Hobby Airport (HOU) to San Diego Intl. Airport (SAN)

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Cheap Flights from Houston to San Diego (HOU-SAN)

Prices were available within the past 7 days and start at $137 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Sat, Oct 18 - Tue, Oct 28
HOU
Houston
SAN
San Diego
$209 Roundtrip, found 5 days ago
$209
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sat, Oct 18 from Houston to San Diego, returning Tue, Oct 28, priced at $209 found 5 days ago

Find the cheapest month to fly from Houston (HOU) to San Diego (SAN)

February is typically the cheapest month to fly

From $91 - $469 per traveler.

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN) cost?
Lock in a cheap one-way flight from $137 or cheap return flight from $209 from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
October is the cheapest month to fly from HOU to SAN. Traveling during an off-peak travel window is often the key to finding a great deal.
Which airlines fly direct from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
Fly directly from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN) on a Southwest Airlines flight.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from HOU to SAN. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
With, on average, 2 nonstop flights departing from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN) every day, you'll be off on your next adventure in no time.
What are the most popular departure times for flights from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
More passengers fly between HOU and SAN at 8 AM than at any other time of day. Rather skip the crowds? Try choosing a quieter departure window and it's possible you'll save on your ticket as well.
What day of the week has the most flights from HOU to SAN?
Friday has the most flights from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN). Consider leaving on this day and you'll have the best chance of finding a departure that fits your itinerary.
What is the earliest flight from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
The earliest flight taking off from William P. Hobby Airport (HOU) is at around 8:50AM UTC-6. Board this flight and you'll arrive at San Diego Intl. Airport (SAN) at approximately 10:30AM UTC-8. The overall travel time is 3h 40m.
How long does it take to fly from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
It takes approximately 3 hours and 36 minutes to fly the 1,300 mi from HOU to SAN.
What airline has the least delays from HOU to SAN?
Southwest Airlines has the best performance for on-time direct flights from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN), with an on-time score of 86%. Use the Expedia App to see your journey status before you take off and get notified of any changes.
What is the best time to fly from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
Choose a flight from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN) that leaves before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Diego from William P. Hobby Airport (HOU)?
Check out your flight options from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN). This is the only airport in San Diego you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN) last-minute?
Last-minute bookings from HOU to SAN are usually more expensive. To secure the best rates, start searching for flights well ahead of time. That being said, if you're flexible with your travel dates, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book a HOU to SAN flight and hotel package?
Compared with arranging flights and hotels separately, booking a HOU to SAN flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the hassle out of travel planning. Just secure your flights and select from our wide range of stays, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to San Diego Intl. Airport (SAN)?
Generally, it's possible to cancel or reschedule your HOU to SAN flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
William P. Hobby
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines
Roundtrip price
$208
Distance
1310 mi
Average flight time
2 hours 51 mins

Book with confidence

Book with confidence

Houston to San Diego Flights

The cheapest times to fly from Houston to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to San Diego are during the month of October. You can find some of the cheapest flights from Houston to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to San Diego

Sunday is one of the best days to book for cheap flights from Houston to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $137 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Houston to San Diego Flights

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