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San Diego

$100+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SAN
May 4 — May 111
Mon 5/4
Mon 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to San Diego are usually found in August or September, booked 76 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap 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 4, 2026.

This Expedia deal was found by Cheapflights users on 4/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:10 pm
IAH
-
SAN
1 stop25h 48m
Frontier
Sat 6/209:53 pm
SAN
-
IAH
1 stop12h 53m
Frontier
Deal found 4/1$260
This Expedia deal was found by Cheapflights users on 4/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:30 am
IAH
-
SAN
1 stop28h 47m
Frontier
Sun 4/199:00 pm
SAN
-
IAH
1 stop12h 47m
Frontier
Deal found 4/3$261
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Wed 7/1511:54 am
IAH
-
SAN
1 stop5h 38m
Frontier
Wed 7/229:53 pm
SAN
-
IAH
1 stop12h 53m
Frontier
Deal found 4/3$262
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Tue 4/712:48 pm
IAH
-
SAN
1 stop13h 14m
Frontier
Sat 4/116:25 am
SAN
-
IAH
1 stop13h 08m
Frontier
Deal found 3/31$263
This Kiwi.com deal was found by Cheapflights users on 4/2. 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.
Thu 4/910:29 pm
IAH
-
SAN
1 stop19h 46m
Frontier
Wed 4/152:12 pm
SAN
-
IAH
1 stop19h 50m
Frontier
Deal found 4/2$264
This Frontier deal was found by Cheapflights users on 4/1. 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.
Wed 6/245:34 pm
IAH
-
SAN
1 stop8h 19m
Frontier
Tue 6/309:37 am
SAN
-
IAH
1 stop13h 07m
Frontier
Deal found 4/1$265
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/152:40 pm
IAH
-
SAN
1 stop11h 10m
Frontier
Sun 5/171:38 pm
SAN
-
IAH
2 stops19h 33m
Frontier
Deal found 4/1$266
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Thu 7/95:34 pm
IAH
-
SAN
1 stop8h 19m
Frontier
Sun 7/129:37 am
SAN
-
IAH
1 stop13h 07m
Frontier
Deal found 3/31$267
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Thu 5/1410:05 pm
IAH
-
SAN
2 stops45h 54m
Frontier
Tue 8/119:53 pm
SAN
-
IAH
1 stop12h 53m
Frontier
Deal found 3/31$268
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Tue 5/1912:06 pm
IAH
-
SAN
1 stop5h 25m
Frontier
Mon 5/251:38 pm
SAN
-
IAH
2 stops18h 39m
Frontier
Deal found 3/30$269
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Fri 4/310:09 pm
IAH
-
SAN
1 stop17h 57m
Frontier
Sun 4/59:28 pm
SAN
-
IAH
1 stop25h 20m
Frontier
Deal found 3/31$270
This CheapOair deal was found by Cheapflights users on 3/31. 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.
Sat 7/45:34 pm
IAH
-
SAN
1 stop8h 19m
Frontier
Fri 7/109:53 pm
SAN
-
IAH
1 stop12h 53m
Frontier
Deal found 3/31$271

Find 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 4, 2026.

Round-trip from

$260
(Expedia)

One-way from

$100
(Frontier)

Popular in

December

Cheapest in

August

Average price

$413
From Houston to San Diego
Search Deals
One-way flight from Houston to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 4, 2026.
Use the filters below to find and compare flights from Houston to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Tue 6/30

5:22 am-9:59 am

1 stop6h 37m

San Diego

Wed 7/1

5:15 pm-10:36 pm

Nonstop3h 21m

$387

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Wed 5/6

9:30 am-11:03 am

Nonstop3h 33m

San Diego

Sat 5/9

11:00 am-8:12 pm

1 stop7h 12m

$407

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Thu 4/23

7:40 pm-9:05 pm

Nonstop3h 25m

San Diego

Mon 4/27

7:10 am-12:15 pm

Nonstop3h 05m

$417

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Sat 5/9

5:04 pm-11:27 pm

1 stop8h 23m

San Diego

Wed 5/13

6:15 am-4:09 pm

1 stop7h 54m

$417
Quickest round-trip

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Thu 5/7

2:15 pm-3:35 pm

Nonstop3h 20m

San Diego

Mon 5/11

7:10 am-12:15 pm

Nonstop3h 05m

$417

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Wed 5/13

8:55 am-1:55 pm

1 stop7h 00m

San Diego

Sat 5/16

7:00 am-5:10 pm

2 stops8h 10m

$422

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Tue 5/26

8:35 pm-10:00 pm

Nonstop3h 25m

San Diego

Fri 5/29

4:20 pm-12:05 am

1 stop5h 45m

$425

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Tue 6/9

3:30 pm-6:20 pm

1 stop4h 50m

San Diego

Sun 6/14

7:55 pm-1:10 am

Nonstop3h 15m

$427

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Thu 6/18

6:29 pm-7:50 pm

Nonstop3h 21m

San Diego

Tue 6/23

6:20 am-1:40 pm

1 stop5h 20m

$431

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Wed 5/13

1:06 pm-7:23 pm

1 stop8h 17m

San Diego

Sat 5/16

12:41 pm-10:26 pm

1 stop7h 45m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 41 resultsSorted by cheapest first
1
2
3
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5

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 2, 2026.

The best time to book flights from Houston to San Diego is 76 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, November is the cheapest month in which you can book a flight from Houston to San Diego (average of $54). Flying from Houston to San Diego in March is currently the most expensive (average of $137). 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 4, 2026.

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 morning, which can drop the price by up to 5% versus a flight at noon.

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 March 28, 2026.

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

How much does it cost to fly round-trip from Houston to San Diego?

How often are flights from Houston to San Diego delayed?

About 16% of weekly flights between Houston and San Diego have experienced delays in the past year, with the average delay time being 153 minutes.

What is the most punctual flight time for Houston to San Diego flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to San Diego flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

The best insider tips for Houston to San Diego flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to San Diego trip
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

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 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
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Scott Laird

Scott Laird

Expert on HOU

Originally from Anchorage, Alaska, Scott is a frequent contributor to Fodor’s Travel Guide, Conde Nast Traveler, TravelAge West, and TravelPulse. He holds a Bachelor of Science in Organizational Management from Alaska Pacific University and a Master of Science in Airline Management from Embry-Riddle Aeronautical University, and has worked in the airline and hotel industries and as a travel consultant.

Read more

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 4, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Houston to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,343 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,343 reviews
Southwest
8.0
Very good
4,343 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,542 reviews
Southwest
8.0
Very good
4,343 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,559 reviews
Southwest
8.0
Very good
4,343 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Spirit Airlines
6.3
Okay
8,583 reviews
Southwest
8.0
Very good
4,343 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,001 reviews
Southwest
8.0
Very good
4,343 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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.

  • How long is the flight from Houston to San Diego?

    United Airlines, Southwest, and Delta can get you from Houston to San Diego in just under 3h 25m. Your travel time can differ by up to 4h 58m. There are 1310 mi between Houston and San Diego. This flight may include one or multiple stops.

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

    According to our current data, Spirit Airlines ($89), Frontier ($113), and American Airlines ($158) offers the cheapest pricing from Houston to San Diego. Spirit Airlines is priced at 78% 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 Spirit Airlines ($56), Frontier ($71), and United Airlines ($134).

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

    While on average a flight from Houston to San Diego is generally $390, our data shows the cheapest flight currently is $174. When looking at the most popular route, (Houston Hobby - San Diego), you can expect to pay $174 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, November is the cheapest month in which you can book a flight from Houston to San Diego (average of $54). Flying from Houston to San Diego in March is currently the most expensive (average of $137). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Alternative routes for Houston to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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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 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$186FlexibilityNo cancel feeOn-time65%
FrontierCheapest$113Average$229FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$158Average$413FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$250Average$464FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$265Average$437FlexibilityNo cancel feeOn-time63%

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