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

Compare Houston Hobby to San Diego International flight deals

Find the cheapest month or even day of the year to fly to San Diego International

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Flight deals from Houston Hobby to San Diego International

Looking for a cheap last-minute deal or the best return flight from Houston Hobby to San Diego International? Find the lowest prices on one-way and return tickets right here.
San Diego.$300 per passenger.Departing Wed, 24 Sep, returning Wed, 1 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 24 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 1 Oct, arriving in Houston Hobby.Price includes taxes and charges.From $300, select.
San Diego.$300 per passenger.Departing Tue, 5 Aug, returning Wed, 6 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Tue, 5 Aug, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 6 Aug, arriving in Houston Hobby.Price includes taxes and charges.From $300, select.
San Diego.$300 per passenger.Departing Wed, 15 Oct, returning Mon, 20 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 15 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 20 Oct, arriving in Houston Hobby.Price includes taxes and charges.From $300, select.
San Diego.$300 per passenger.Departing Sat, 30 Aug, returning Wed, 3 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Sat, 30 Aug, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 3 Sep, arriving in Houston Hobby.Price includes taxes and charges.From $300, select.
San Diego.$300 per passenger.Departing Thu, 11 Sep, returning Mon, 15 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Thu, 11 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 15 Sep, arriving in Houston Hobby.Price includes taxes and charges.From $300, select.
San Diego.$300 per passenger.Departing Wed, 12 Nov, returning Mon, 17 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 12 Nov, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 17 Nov, arriving in Houston Hobby.Price includes taxes and charges.From $300, select.
San Diego.$510 per passenger.Departing Mon, 28 Jul, returning Mon, 11 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Mon, 28 Jul, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Mon, 11 Aug, arriving in Houston Hobby.Price includes taxes and charges.From $510, select.
San Diego.$539 per passenger.Departing Mon, 28 Jul, returning Mon, 11 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Mon, 28 Jul, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 11 Aug, arriving in Houston Hobby.Price includes taxes and charges.From $539, select.

Find the cheapest month to fly from Houston Hobby to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston Hobby to San Diego International flights are currently cheapest in August.
Jul
from $629
Aug
from $300
Sep
from $300
Oct
from $300
Nov
from $300
Dec
from $560
Jan
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Feb
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Mar
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Apr
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May
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Jun
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Direct flights from Houston Hobby to San Diego International

Houston Hobby to San Diego International: Alternative routes

Compare routes from Houston Hobby to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

Houston to San Diego: Flight information

The things to know before you go.
Cheapest flight found$300
Cheapest month to flySeptember
Average flight time3 hrs, 22 mins
Most popular airlineSouthwest Airlines
Average flights per week13

Finding cheap flights from Houston Hobby to San Diego International: Frequently asked questions

The best price we found for a return flight from Houston Hobby to San Diego International is $300. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 22 minutes is the average flight time from Houston Hobby to San Diego International.
Southwest Airlines and Sun Country Airlines fly direct from Houston Hobby to San Diego International.
As of July 2025, there are 13 flights per week flying from Houston Hobby to San Diego International.
The cheapest month to fly from Houston Hobby to San Diego International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston Hobby Airport to San Diego International Airport on Wednesday, 24 September 2025.
Yes – the average flight time is 3 hours and 22 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Southwest Airlines offers the cheapest flight tickets to San Diego International.

Travelling from William P. Hobby Airport (HOU) to San Diego International Airport (SAN): what you need to know

  • Jump on a direct flight from William P. Hobby Airport to San Diego International Airport and you'll be in the air for an average of 3 hours 20 minutes.

  • The timezone in San Diego is UTC-7, which is two hours behind Houston.

  • Each week, there are 13 William P. Hobby Airport to San Diego International Airport flights. If you'd like to get going early, jump on the 06:00 Southwest Airlines flight. If you'd rather make the most of your day before you fly, the latest flight is at 22:20 with Southwest Airlines.

  • Get to the airport on time so you don't miss your HOU to SAN flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • Flying during a peak time such as July? Public holidays and other high seasons can lead to longer lines and delays at check-in and security. Play it safe and get there up to four hours ahead of international flights and two hours before domestic departures.

  • Flying into San Diego (and then seeing more of United States!) is a breeze with Southwest Airlines. This popular carrier offers direct flights from William P. Hobby Airport to San Diego International Airport.

  • The majority of passengers choose to travel with Southwest Airlines on this route.

  • Southwest Airlines is the most punctual carrier operating HOU to SAN flights, with 71.53% of its services arriving on schedule.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from William P. Hobby Airport to San Diego International Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit the city of your choice. Stopovers between HOU and SAN include:

    • Austin-Bergstrom International Airport

    • Phoenix Sky Harbour International Airport

    • Dallas Love Field Airport

How to find the cheapest flights from William P. Hobby Airport (HOU) to San Diego International Airport (SAN)

  • Right now, $150 is the lowest price we've seen for a one-way William P. Hobby Airport to San Diego International Airport flight. The best price for a return plane ticket is $300. Remember that fares can change due to availability when booking.

  • Get cheap tickets from HOU to SAN by booking six months ahead. According to our research, that's the sweet spot for picking up a bargain.

  • Plan your trip for May. That's the cheapest month for flights from William P. Hobby Airport to San Diego International Airport. If you're flexible with your dates, use the 'Whole month' tool to see the lowest price across each month.

  • There's no need to check back in every day to see if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a new deal on cheap flights from HOU to SAN.

  • Tailor your flights using filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from William P. Hobby Airport to San Diego International Airport.

Handy information about William P. Hobby Airport (HOU)

  • You'll find HOU at 7800 Airport Boulevard.

  • 81.06% of flights departing from William P. Hobby Airport land at their destination on time. Given its reliable on-time performance, disruptions are unlikely when setting off from HOU.

  • Central Houston to William P. Hobby Airport is around 19 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Catching public transport? Expect a trip time of around 1 hour 40 minutes.

  • Taking an early flight from William P. Hobby Airport to San Diego International Airport? Avoid the last-minute rush to the airport (and sneak in some extra precious sleep) by picking one of these hotels near HOU:

Arriving at San Diego International Airport (SAN)

Getting from San Diego International Airport (SAN) to central San Diego

  • SAN is located at Airport Drive.

  • From San Diego International Airport, San Diego is approximately 5 kilometres away. It takes around 10 minutes to reach the centre by car.

  • Getting there by public transport takes about 20 minutes.

When to fly to San Diego International Airport (SAN)

  • It's time to choose your trip dates for your flight from William P. Hobby Airport to San Diego International Airport. July is the most popular month to head to San Diego. If you like a more low-key vibe, go in May.

  • When reserving your flight from William P. Hobby Airport to San Diego International Airport, consider the type of weather you enjoy. August is the warmest month in San Diego, with the temperature ranging from 17ºC (63ºF) to 28ºC (82ºF).

  • For cooler conditions, look for a cheap ticket from HOU to SAN in February. Average temperatures are between 7ºC (45ºF) and 23ºC (73ºF) then.

Explore more of United States

  • San Diego has its own special appeal, but there are so many other parts of United States waiting to be discovered. Around 177 kilometres north-west of San Diego, a visit to Los Angeles will keep your itinerary busy. Start with attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Phoenix is another sought-after destination in United States and is around 483 kilometres east of San Diego. No trip is complete without seeing Desert Botanical Garden, Heard Museum and Papago Park.

Plan the rest of your trip from Houston to San Diego

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.