Cheap Flights from Houston to San Diego International

Compare Houston 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 to San Diego International

Looking for a cheap last-minute deal or the best return flight from Houston to San Diego International Airport? If you want to travel next month, return fares start from R 2,312. Find the lowest prices on one-way and return tickets right here.

San Diego.R 1,147 per passenger.Departing Tue, 4 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Tue, 4 Aug, arriving in San Diego International.Price includes taxes and charges.From R 1,147, select.

San Diego.R 1,178 per passenger.Departing Mon, 21 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Mon, 21 Sep, arriving in San Diego International.Price includes taxes and charges.From R 1,178, select.

San Diego.R 1,316 per passenger.Departing Sat, 3 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sat, 3 Oct, arriving in San Diego International.Price includes taxes and charges.From R 1,316, select.

San Diego.R 2,091 per passenger.Departing Mon, 9 Nov.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Mon, 9 Nov, arriving in San Diego International.Price includes taxes and charges.From R 2,091, select.

San Diego.R 2,197 per passenger.Departing Wed, 23 Sep.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 23 Sep, arriving in San Diego International.Price includes taxes and charges.From R 2,197, select.

San Diego.R 2,200 per passenger.Departing Thu, 12 Nov.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Thu, 12 Nov, arriving in San Diego International.Price includes taxes and charges.From R 2,200, select.

San Diego.R 2,200 per passenger.Departing Thu, 13 Aug.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Thu, 13 Aug, arriving in San Diego International.Price includes taxes and charges.From R 2,200, select.

San Diego.R 2,210 per passenger.Departing Tue, 28 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Tue, 28 Jul, arriving in San Diego International.Price includes taxes and charges.From R 2,210, select.

San Diego.R 2,461 per passenger.Departing Thu, 22 Oct.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Thu, 22 Oct, arriving in San Diego International.Price includes taxes and charges.From R 2,461, select.

San Diego.R 2,463 per passenger.Departing Mon, 7 Dec.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Mon, 7 Dec, arriving in San Diego International.Price includes taxes and charges.From R 2,463, select.

San Diego.R 3,514 per passenger.Departing Tue, 19 Jan.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Tue, 19 Jan, arriving in San Diego International.Price includes taxes and charges.From R 3,514, select.

San Diego.R 3,796 per passenger.Departing Sat, 6 Feb.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 6 Feb, arriving in San Diego International.Price includes taxes and charges.From R 3,796, select.

San Diego.R 3,803 per passenger.Departing Mon, 31 May.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Mon, 31 May, arriving in San Diego International.Price includes taxes and charges.From R 3,803, select.

San Diego.R 3,813 per passenger.Departing Fri, 30 Apr.One-way flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Fri, 30 Apr, arriving in San Diego International.Price includes taxes and charges.From R 3,813, select.

San Diego.R 4,354 per passenger.Departing Mon, 27 Jul.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Mon, 27 Jul, arriving in San Diego International.Price includes taxes and charges.From R 4,354, select.

Find the cheapest month to fly from Houston 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 to San Diego International flights are currently cheapest in August.

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Direct flights from Houston to San Diego International

Houston to San Diego International: Alternative routes

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

San Diego International

4km from central San Diego

ClosestCheapest

from R 1,147

Search flights

McClellan-Palomar

48km from central San Diego

from R 5,283

Search flights

Houston to San Diego: Flight information

The things to know before you go.

Cheapest flight found	R 1,148
Cheapest month to fly	August
Average flight time	3 hrs, 24 mins
Most popular airline	Southwest Airlines
Average flights per week	77

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

How much are return flights from Houston to San Diego International?

The best price we found for a return flight from Houston to San Diego International is R 2,312. 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.

How long does it take to fly from Houston to San Diego International?

3 hours and 24 minutes is the average flight time from Houston to San Diego International.

Which airlines fly direct from Houston to San Diego International?

Southwest Airlines, United and Lufthansa fly direct from Houston to San Diego International.

How many flights are there a week from Houston to San Diego International?

As of July 2026, there are 77 flights per week flying from Houston to San Diego International.

When is the cheapest time to fly from Houston to San Diego International?

The cheapest month to fly from Houston to San Diego International is usually August.

Which upcoming date is cheapest to fly from Houston to San Diego International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to San Diego International Airport on Tuesday, 4 August 2026.

Can I get a direct flight from Houston to San Diego International Airport?

Yes – the average flight time is 3 hours and 24 minutes.

How can I find the best flight deal to San Diego International?

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.

When is the best time to book flights to San Diego?

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.

Flying from Houston to San Diego International Airport (SAN): What you need to know

Start planning your trip by checking out the most convenient departure point for your flight from Houston to San Diego International Airport (SAN). Explore the options for taking off from Houston George Bush Intercontinental Airport (IAH) or Houston Hobby Airport (HOU), the city's main airports.
The average duration of a direct Houston to San Diego International Airport flight is 3 hours 35 minutes.
San Diego International Airport is located in San Diego. The city runs on the UTC-8 timezone and is two hours behind Houston.
Houston George Bush Intercontinental Airport (IAH) to San Diego International Airport (SAN) is the most popular route. There are 34 direct flights a week to choose from. If you have things to do before leaving, hop on the last flight with United Airlines at 8:17pm. Choose the first IAH to SAN departure with United Airlines at 7:25am if you'd rather not wait around.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Get to the airport on time to catch your flight from Houston to SAN.
Hopping on a plane during a peak time like July? Popular periods (like Thanksgiving, Christmas and spring break) can add another hour at check-in and security. Be extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

Airports in Houston

Houston George Bush Intercontinental Airport (IAH)

You can book a direct flight from Houston to San Diego International Airport (SAN) out of Houston George Bush Intercontinental Airport (IAH).
You can book a direct flight from Houston to San Diego International Airport with United Airlines. This top airline offers services from IAH.
The majority of travellers prefer to book seats with United from IAH to SAN.
With a reliable 82.79% of services landing on schedule, United leads the way in punctuality on this route.
IAH is around 40 kilometres from central Houston. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 30 minutes or so to get there, depending on the traffic. If you're using public transport, expect the trip time to be around 1 hour 10 minutes.
Catching an early flight from Houston to San Diego International Airport? Avoid the last-minute rush to the terminal (and enjoy a few extra z's) by picking one of these stays close to Houston George Bush Intercontinental Airport:
When it comes to the on-time performance of Houston George Bush Intercontinental Airport, 79% of flights arrive within the expected time frame.
You'll find IAH at 16930 JFK Boulevard.

Houston Hobby Airport (HOU)

Catching a flight out of Houston Hobby Airport (HOU)? Direct Houston to San Diego International Airport (SAN) plane tickets can be booked from this popular hub.
From HOU, direct flights from Houston to SAN are available with Southwest Airlines.
Southwest Airlines is the top choice for travellers flying from HOU to SAN.
With 73.38% of services arriving as scheduled, Southwest Airlines is the top on-time carrier flying between Houston Hobby Airport and San Diego International Airport.
You can arrive at HOU from central Houston in about 20 minutes by car (depending on traffic conditions). The journey on public transport takes roughly 50 minutes to cover the 19 kilometres or so.
Want to treat yourself to an extra night away before catching your Houston to SAN flight? Check in to a hotel near Houston Hobby Airport before your adventure officially begins. These stays have your key waiting:
Looking at how often flights stay on schedule, Houston Hobby Airport has an on-time arrival performance of 79%.
You'll find HOU at 7800 Airport Boulevard.

About San Diego International Airport (SAN)

If you're arriving on a late flight from Houston to San Diego International Airport, few things top the convenience of staying near the terminal. Pick up your luggage at baggage claim and then be showered and relaxing soon after at one of these options near SAN:
To get the lowest price, reserve your vehicle around two weeks in advance of your Houston to San Diego International Airport flight.
The address for SAN is N Harbour Dr.

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

From San Diego International Airport, central San Diego is around 5 kilometres away. It takes about 15 minutes to get to the city centre by car.
Travelling by public transport typically takes 25 minutes.

How to find the cheapest flights from Houston to San Diego International Airport (SAN)

Currently, R 1,147 is the best price we've found for a one-way ticket from Houston to San Diego International Airport. The cheapest price for a return flight is R 2,311. Keep in mind fares can change due to availability at the time of booking.
To find cheap flights from Houston to SAN, book ahead. Airlines generally offer lower fares when flights are first released.
The 'Whole month' search tool shows you the cheapest Houston to San Diego International Airport tickets across each month. It's an easy way to find a bargain if your trip dates aren't set in stone.
Be the first to know about deals for plane tickets from Houston to SAN by creating a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.
Hunt for savings on a flight from Houston to San Diego International Airport with the help of the filters. Pick your ideal arrival and departure times, number of stops and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from Houston to San Diego International Airport (SAN)

December is the quietest month for flights from Houston to San Diego International Airport (SAN), while July is the busiest. Pick the best time to go to San Diego based on whether you prefer a laid-back vibe or a more bustling atmosphere.
Lock in a Houston to SAN plane ticket departing in August if you want to explore the city during its warmest month. Expect temperatures in San Diego to range from 16ºC (61ºF) to 27ºC (81ºF).
Search for cheap tickets from Houston to San Diego International Airport in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC (46ºF) and 22ºC (72ºF).

More about San Diego

When it comes to searching for somewhere to lay your head, you'll find the top stays in San Diego right here. Check out these hotels as soon as you've booked your flight from Houston to San Diego International Airport:
San Diego Zoo and San Diego Balboa Park are a couple of big attractions to add to your San Diego must-do list. Keep the sightseeing going at USS Midway Museum.

Explore more of the United States

Los Angeles is just one of the many places in the United States waiting to be discovered once you've seen the sights of San Diego. Around 177 kilometres away to the northwest, top sights here include Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.
Long Beach is another sought-after destination in the United States and is around 145 kilometres northwest of San Diego. No journey is complete without dropping by The Queen Mary, Museum of Latin American Art (MOLAA) and Long Beach Lighthouse.