$80 Cheap Flights from Houston (IAH) to San Diego (SAN)

View $80 flight on Wed, Oct 1, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)

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

Prices were available within the past 7 days and start at $80 for one-way flights and $131 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sun, Sep 21 - Fri, Oct 3
IAH
Houston
SAN
San Diego
$131 Roundtrip, found 1 day ago
$131
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sun, Sep 21 from Houston to San Diego, returning Fri, Oct 3, priced at $131 found 1 day ago
Spirit Airlines
Sun, Sep 28 - Sat, Oct 4
IAH
Houston
SAN
San Diego
$140 Roundtrip, found 16 hours ago
$140
Roundtrip
found 16 hours ago
Select Spirit Airlines flight, departing Sun, Sep 28 from Houston to San Diego, returning Sat, Oct 4, priced at $140 found 16 hours ago
Spirit Airlines
Tue, Sep 30 - Fri, Oct 3
IAH
Houston
SAN
San Diego
$155 Roundtrip, found 23 hours ago
$155
Roundtrip
found 23 hours ago
Select Spirit Airlines flight, departing Tue, Sep 30 from Houston to San Diego, returning Fri, Oct 3, priced at $155 found 23 hours ago
Spirit Airlines
Tue, Sep 30 - Wed, Oct 1
IAH
Houston
SAN
San Diego
$159 Roundtrip, found 3 hours ago
$159
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Tue, Sep 30 from Houston to San Diego, returning Wed, Oct 1, priced at $159 found 3 hours ago
Spirit Airlines
Sun, Sep 21 - Wed, Oct 1
IAH
Houston
SAN
San Diego
$161 Roundtrip, found 7 hours ago
$161
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Sun, Sep 21 from Houston to San Diego, returning Wed, Oct 1, priced at $161 found 7 hours ago
Spirit Airlines
Sun, Sep 28 - Fri, Oct 3
IAH
Houston
SAN
San Diego
$167 Roundtrip, found 18 hours ago
$167
Roundtrip
found 18 hours ago
Select Spirit Airlines flight, departing Sun, Sep 28 from Houston to San Diego, returning Fri, Oct 3, priced at $167 found 18 hours ago
Frontier Airlines
Tue, Nov 4 - Wed, Nov 5
IAH
Houston
SAN
San Diego
$195 Roundtrip, found 3 hours ago
$195
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, Nov 4 from Houston to San Diego, returning Wed, Nov 5, priced at $195 found 3 hours ago
Alaska Airlines
Tue, Oct 28 - Wed, Oct 29
IAH
Houston
SAN
San Diego
$313 Roundtrip, found 3 hours ago
$313
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Houston to San Diego, returning Wed, Oct 29, priced at $313 found 3 hours ago
United
Mon, Mar 2 - Wed, Mar 4
IAH
Houston
SAN
San Diego
$371 Roundtrip, just found
$371
Roundtrip
just found
Select United flight, departing Mon, Mar 2 from Houston to San Diego, returning Wed, Mar 4, priced at $371 just found
Delta
Thu, Dec 4 - Sat, Dec 6
IAH
Houston
SAN
San Diego
$391 Roundtrip, found 1 hour ago
$391
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Dec 4 from Houston to San Diego, returning Sat, Dec 6, priced at $391 found 1 hour ago

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

February is typically the cheapest month to fly

From $87 - $449 per traveler.

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $364
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $364
Select flight to McClellan-Palomar CLD. Average driving time to city center is 38 minutes. Flights from $470
CLD
McClellan-Palomar
Average driving time to city center38 min
Flights from $470
Flights from Houston (IAH) to San Diego (SAN)
Origin airport
George Bush Intercontinental
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Roundtrip price
$130
Distance
1300 mi
Average flight time
2 hours 14 mins

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 September. 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 $80 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.

 

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN) cost?
Secure a cheap one-way flight from $80 or cheap return flight from $131 from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
September is the most affordable month to fly from IAH to SAN. Traveling during an off-peak travel window is often the key to better flight prices.
Which airlines fly direct from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
When heading out of George Bush Intercontinental Airport (IAH), you can jump on a direct flight to San Diego Intl. Airport (SAN) with United Airlines.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest IAH to SAN flight.
How many flights per day from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
When taking off from George Bush Intercontinental Airport (IAH), you'll have a choice from an average of 4 daily nonstop flights to San Diego Intl. Airport (SAN).
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
The 12 PM departures from IAH to SAN are the most sought after. Greater demand means you'll likely pay more for these departures. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from IAH to SAN?
If you depart on a Saturday, you'll get the largest range of choices for flights from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN).
What is the earliest flight from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
Hop on the earliest flight at around 9:30AM UTC-6, leaving from George Bush Intercontinental Airport (IAH). You'll be in the air for about 3h 37m, arriving at San Diego Intl. Airport (SAN) at approximately 11:07AM UTC-8.
How long does it take to fly from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
The average flight time from IAH to SAN is 3 hours and 39 minutes, covering a distance of 1,300 mi.
What airline has the least delays from IAH to SAN?
With 86% of flights generally landing on time, United Airlines has the best on-time performance for direct flights from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN). To keep track of your flight status and get notifications if anything changes, head to the Expedia App.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
Select a flight from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN) that takes off before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**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 George Bush Intercontinental Airport (IAH)?
Explore your flight options from George Bush Intercontinental Airport (IAH) 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 George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN) last-minute?
Booking your plane ticket from IAH to SAN just before your getaway is typically more expensive. However, if you're flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an IAH to SAN flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAH to SAN flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to San Diego Intl. Airport (SAN)?
If you reserved your IAH to SAN flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.