HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$95+ Cheap flights from Houston to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SAN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Houston to San Diego are usually found in August or May, booked 43 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Houston to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2025.

Round-trip from

$205
(Cheapflightsfares)

One-way from

$95
(Frontier)

Popular in

December

Cheapest in

August

Average price

$365
From Houston to San Diego
Search Deals
One-way flight from Houston to San Diego
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Houston to San Diego

Cheapest flights from Houston to San Diego
Explore the most affordable flight options available from Houston to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/132:45 pmIAH - SAN
1 stop7h 08mSpirit Airlines
Sat 5/175:43 pmSAN - IAH
1 stop9h 48mSpirit Airlines
Deal found 4/28$205
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/98:27 pmIAH - SAN
1 stop5h 31mFrontier
Wed 5/141:23 pmSAN - IAH
1 stop8h 30mFrontier
Deal found 4/28$208
This CheapOair deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/98:27 pmIAH - SAN
1 stop5h 31mMultiple Airlines
Mon 5/125:43 pmSAN - IAH
1 stop9h 48mMultiple Airlines
Deal found 4/28$220
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/109:40 pmHOU - SAN
Nonstop3h 15mSouthwest
Wed 6/116:45 pmSAN - HOU
Nonstop3h 10mSouthwest
Deal found 4/28$323
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/276:35 pmIAH - SAN
Nonstop3h 21mUnited Airlines
Tue 6/312:35 pmSAN - IAH
1 stop6h 23mUnited Airlines
Deal found 4/28$333
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/202:45 pmHOU - SAN
1 stop7h 23mDelta
Wed 5/218:00 amSAN - HOU
1 stop7h 57mDelta
Deal found 4/28$343
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/255:00 amHOU - SAN
1 stop5h 33mAmerican Airlines
Tue 6/36:15 amSAN - HOU
1 stop5h 43mAmerican Airlines
Deal found 4/29$345
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/285:54 pmIAH - SAN
1 stop8h 05mAlaska Airlines
Wed 6/45:18 pmSAN - IAH
2 stops11h 02mAlaska Airlines
Deal found 4/29$348
This Sun Country Air deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/236:05 pmHOU - SAN
1 stop24h 56mSun Country Air
Sun 6/297:10 amSAN - HOU
1 stop8h 26mSun Country Air
Deal found 4/27$355
This Mytrip deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/266:00 amHOU - SAN
1 stop13h 19mMultiple Airlines
Mon 7/77:00 pmSAN - HOU
1 stop15h 30mMultiple Airlines
Deal found 4/28$388
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:15 pmIAH - SAN
1 stop8h 04mDelta
Mon 9/19:40 pmSAN - IAH
1 stop8h 52mDelta
Deal found 4/28$427
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/22:10 pmHOU - SAN
1 stop6h 02mAlaska Airlines
Mon 5/59:25 amSAN - HOU
1 stop6h 36mAlaska Airlines
Deal found 4/29$16,294

Cheapflights Fare Finder

Customize your flight search to find flights from Houston to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
Use the filters below to find and compare flights from Houston to San Diego that are best for you.

Fly from

Houston

Fly to

San Diego

Route

Depart

Return

Price

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Tue 5/13

2:45 pm-7:53 pm

1 stop7h 08m

San Diego

Sat 5/17

5:43 pm-5:31 am

1 stop9h 48m

$205

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Fri 5/9

8:27 pm-11:58 pm

1 stop5h 31m

San Diego

Wed 5/14

1:23 pm-11:53 pm

1 stop8h 30m

$208

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Fri 5/9

8:27 pm-11:58 pm

1 stop5h 31m

San Diego

Sun 5/11

8:48 pm-5:31 am

1 stop6h 43m

$212

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Tue 6/10

9:40 pm-10:55 pm

Nonstop3h 15m

San Diego

Wed 6/11

6:45 pm-11:55 pm

Nonstop3h 10m

$323

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Tue 5/27

7:59 pm-9:20 pm

Nonstop3h 21m

San Diego

Tue 6/3

6:15 am-11:40 am

Nonstop3h 25m

$323

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Tue 5/20

2:45 pm-8:08 pm

1 stop7h 23m

San Diego

Wed 5/21

8:00 am-5:57 pm

1 stop7h 57m

$343

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Sun 5/25

5:00 am-8:33 am

1 stop5h 33m

San Diego

Tue 6/3

6:15 am-1:58 pm

1 stop5h 43m

$345

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Wed 5/28

5:54 pm-11:59 pm

1 stop8h 05m

San Diego

Wed 6/4

5:18 pm-6:20 am

2 stops11h 02m

$348

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Mon 6/23

6:05 pm-5:01 pm

1 stop24h 56m

San Diego

Sun 6/29

7:10 am-5:36 pm

1 stop8h 26m

$355

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Thu 6/26

6:00 am-5:19 pm

1 stop13h 19m

San Diego

Mon 7/7

7:00 pm-12:30 pm

1 stop15h 30m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 25 results
1
2
3

The best insider tips for Houston to San Diego flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to San Diego trip
Airlines
United Airlines

Basic Economy allows a personal item only; no carry-on bags without extra fees.


Economy Plus offers extra legroom seats towards the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom and larger tray tables.


Spirit's self-service bag drop saves time; print your boarding pass in advance.

Read more about Spirit Airlinesby Daniel Scheffler
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more

Best time to book a flight from Houston to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Houston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston to San Diego

How far ahead should I book a flight from Houston to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Houston to San Diego. Price data was last updated on April 25, 2025.

The best time to book flights from Houston to San Diego is 43 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Houston to San Diego?

Currently, August is the cheapest month in which you can book a flight from Houston to San Diego (average of $286). Flying from Houston to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to SAN?

Find hourly flight availability from Houston to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Houston to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 19% versus a flight in the afternoon.

What is the cheapest day to fly from Houston to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Houston to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston to San Diego flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated April 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Houston to San Diego by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Houston to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Houston?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly into when you book flights from Houston to San Diego. 5 airlines have flights to San Diego from Houston on a regular basis. Booking flights from Houston to San Diego should not be difficult; the airport handles an average of 1 inbound flight from Houston per day.

  • What are the cheapest airlines flying from Houston to San Diego round-trip?

    According to our current data, Spirit Airlines ($205), Frontier ($208), and Southwest ($323) offers the cheapest pricing from Houston to San Diego. Spirit Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Houston to San Diego one-way?

    The cheapest airlines for a one-way flight from Houston to San Diego are Frontier ($95), Spirit Airlines ($104), and Southwest ($162).

  • What are the cheapest flights from Houston to San Diego?

    While on average a flight from Houston to San Diego is generally $394, our data shows the cheapest flight currently is $182. When looking at the most popular route, (Houston Hobby - San Diego), you can expect to pay $140 for that flight.

  • Can I find deals for flights from Houston to San Diego that include hotel bookings?

    Yes. In addition to deals on Houston to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to San Diego.

  • Can I find deals for business class flights from Houston to San Diego?

    Yes. Cheapflights offers flight deals from Houston to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Houston to San Diego (average of $286). Flying from Houston to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Houston to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Hobby to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
George Bush Intcntl to Las Vegas flights
Hobby to Los Angeles flights
George Bush Intcntl to Los Angeles flights
Dallas/Fort Worth to Santa Ana flights
Dallas/Fort Worth to San Diego flights
Dallas/Fort Worth to Burbank flights
Hobby to Ontario flights
Austin to Las Vegas flights
Dallas/Fort Worth to San Jose flights
Austin to Los Angeles flights
Dallas/Fort Worth to Ontario flights
Hobby to San Francisco flights
George Bush Intcntl to Ontario flights
Love Field to Las Vegas flights
George Bush Intcntl to San Francisco flights
Love Field to Los Angeles flights
Dallas/Fort Worth to Oakland flights
San Antonio to Las Vegas flights
Hobby to Santa Ana flights
Austin to San Francisco flights
Austin to San Diego flights
George Bush Intcntl to Santa Ana flights
Hobby to San Diego flights
Hobby to Burbank flights
San Antonio to Los Angeles flights
George Bush Intcntl to Burbank flights
Dallas/Fort Worth to Reno flights
George Bush Intcntl to San Diego flights
Love Field to San Diego flights
Hobby to San Jose flights
Hobby to Sacramento flights
Dallas/Fort Worth to Sacramento flights
Austin to Ontario flights
Austin to Santa Ana flights
Hobby to Oakland flights
El Paso to Las Vegas flights
George Bush Intcntl to San Jose flights
Hobby to Reno flights
Love Field to San Francisco flights
Austin to San Jose flights
George Bush Intcntl to Sacramento flights
Love Field to Ontario flights
El Paso to Los Angeles flights
George Bush Intcntl to Oakland flights
San Antonio to San Francisco flights
Dallas/Fort Worth to Long Beach flights

Top 5 airlines flying from Houston to San Diego

Discover the top 5 airlines that operate flights from Houston to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$71Average$178FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$171FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$198Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$226Average$447FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$365Average$450FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.