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$104+ Cheap flights from San Diego (SAN) to Houston

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — HOU
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Houston are usually found in August or September, booked 61 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Diego to Houston

Cheapest flights from San Diego to Houston
Explore the most affordable flight options available from San Diego to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Mon 3/309:58 pm
SAN
-
IAH
2 stops24h 41m
Frontier
Fri 4/310:28 pm
IAH
-
SAN
1 stop23h 58m
Frontier
Deal found 3/12$301
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 4/59:56 pm
SAN
-
IAH
1 stop5h 56m
Multiple Airlines
Sun 4/1210:29 pm
IAH
-
SAN
1 stop19h 46m
Multiple Airlines
Deal found 3/11$303
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 4/59:56 pm
SAN
-
IAH
1 stop5h 56m
Multiple Airlines
Sat 4/116:45 am
IAH
-
SAN
2 stops10h 16m
Multiple Airlines
Deal found 3/11$304
This CheapOair deal was found by Cheapflights users on 3/11. 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.
Mon 3/166:25 am
SAN
-
IAH
1 stop13h 36m
Frontier
Wed 4/157:45 am
IAH
-
SAN
1 stop14h 07m
Frontier
Deal found 3/11$306
This Expedia deal was found by Cheapflights users on 3/11. 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.
Fri 5/229:37 am
SAN
-
IAH
1 stop13h 07m
Frontier
Sun 5/2410:05 pm
IAH
-
SAN
1 stop12h 37m
Frontier
Deal found 3/11$310
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 4/59:56 pm
SAN
-
IAH
1 stop5h 56m
Multiple Airlines
Wed 4/89:47 pm
IAH
-
SAN
2 stops15h 26m
Multiple Airlines
Deal found 3/11$314
This eDestinos deal was found by Cheapflights users on 3/12. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/252:08 pm
SAN
-
IAH
2 stops24h 31m
Frontier
Tue 3/3110:56 pm
IAH
-
SAN
1 stop18h 40m
Frontier
Deal found 3/12$316
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Sun 3/299:59 pm
SAN
-
IAH
2 stops23h 55m
Multiple Airlines
Thu 4/910:29 pm
IAH
-
SAN
1 stop19h 46m
Multiple Airlines
Deal found 3/11$318
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 3/186:25 am
SAN
-
IAH
1 stop16h 14m
Frontier
Wed 3/2510:56 pm
IAH
-
SAN
2 stops20h 42m
Frontier
Deal found 3/11$320
This CheapOair deal was found by Cheapflights users on 3/13. 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.
Wed 6/106:54 pm
SAN
-
IAH
1 stop14h 28m
Frontier
Sun 6/145:09 pm
IAH
-
SAN
1 stop8h 46m
Frontier
Deal found 3/13$321
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/96:25 am
SAN
-
IAH
1 stop16h 23m
Frontier
Fri 4/1010:39 am
IAH
-
SAN
2 stops11h 47m
Frontier
Deal found 3/13$325
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/99:02 pm
SAN
-
IAH
1 stop6h 50m
Multiple Airlines
Sun 4/126:45 am
IAH
-
SAN
1 stop15h 41m
Multiple Airlines
Deal found 3/13$326

Find flight deals from San Diego to Houston

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Houston (HO1). 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 March 16, 2026.

Round-trip from

$301
(Kiwi.com)

One-way from

$104
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$489
From San Diego to Houston
Search Deals
One-way flight from San Diego to Houston
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Houston 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 March 16, 2026.
Use the filters below to find and compare flights from San Diego to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoHouston

SAN - IAH

SANIAH

San Diego

Sat 4/18

9:07 pm-1:27 pm

1 stop14h 20m

Houston George Bush Intcntl

Wed 4/22

7:00 am-9:31 pm

2 stops16h 31m

$375

San DiegoHouston

SAN - IAH

SANIAH

San Diego

Wed 4/8

3:04 pm-8:20 pm

Nonstop3h 16m

Houston George Bush Intcntl

Wed 4/15

4:31 pm-6:05 pm

Nonstop3h 34m

$377
Quickest round-trip

San DiegoHouston

SAN - HOU

SANHOU

San Diego

Tue 5/12

7:10 am-12:15 pm

Nonstop3h 05m

Houston Hobby

Thu 5/28

7:40 pm-9:05 pm

Nonstop3h 25m

$387

San DiegoHouston

SAN - IAH

SANIAH

San Diego

Tue 5/12

6:15 am-11:30 am

Nonstop3h 15m

Houston George Bush Intcntl

Thu 5/28

6:00 am-10:08 am

1 stop6h 08m

$397

San DiegoHouston

SAN - HOU

SANHOU

San Diego

Mon 5/11

7:50 pm-12:55 am

Nonstop3h 05m

Houston Hobby

Thu 5/28

7:40 pm-9:05 pm

Nonstop3h 25m

$397

San DiegoHouston

SAN - HOU

SANHOU

San Diego

Wed 4/8

1:00 pm-6:10 pm

Nonstop3h 10m

Houston Hobby

Sat 4/11

8:10 am-2:05 pm

1 stop7h 55m

$397

San DiegoHouston

SAN - HOU

SANHOU

San Diego

Sat 4/11

10:40 pm-9:30 am

2 stops8h 50m

Houston Hobby

Sat 4/18

8:20 pm-9:45 pm

Nonstop3h 25m

$412

San DiegoHouston

SAN - HOU

SANHOU

San Diego

Tue 4/28

7:10 am-12:15 pm

Nonstop3h 05m

Houston Hobby

Sat 5/2

8:20 pm-9:45 pm

Nonstop3h 25m

$417

San DiegoHouston

SAN - HOU

SANHOU

San Diego

Thu 4/30

7:50 pm-12:55 am

Nonstop3h 05m

Houston Hobby

Thu 5/7

8:10 am-9:35 am

Nonstop3h 25m

$417

San DiegoHouston

SAN - HOU

SANHOU

San Diego

Wed 4/29

9:35 am-6:50 pm

2 stops7h 15m

Houston Hobby

Fri 5/1

12:05 pm-3:55 pm

1 stop5h 50m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 40 resultsSorted by cheapest first
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Best time to book a flight from San Diego to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from San Diego 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 San Diego to Houston

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Houston. Price data was last updated on March 13, 2026.

The price you pay for your flight from San Diego to Houston may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, December is the cheapest month in which you can book a flight from San Diego to Houston (average of $57). Flying from San Diego to Houston in January 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 SAN to HOU?

Find hourly flight availability from San Diego to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 16, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 17% on flights from San Diego to Houston by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Houston. Price data was last updated on March 14, 2026.

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

The best insider tips for San Diego to Houston 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 San Diego to Houston trip
Our travel experts
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 Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated March 16, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andSpirit Airlines from San Diego to Houston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,318 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,428 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,520 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.7
Fair
3,031 reviews
Southwest
8.0
Very good
4,318 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from San Diego to Houston. 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 from for flights from San Diego to Houston?

    San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to Houston. You should not have trouble finding flights to Houston from San Diego; the airport handles an average of 3 outbound flights to Houston per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the San Diego airport to Houston. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.

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

    For as low as $387, Alaska Airlines can have you in Houston from San Diego in 3h 05m. Airlines will cover a distance of 1310 mi. This flight may include one or multiple stops.

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

    According to our current data, Spirit Airlines ($83), Frontier ($128), and United Airlines ($248) offers the cheapest pricing from San Diego to Houston. Users have found that Spirit Airlines is 79% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $47. Users have also found prices from $65 and $114 on Frontier and United Airlines, respectively.

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

    Looking at all options, your cheapest flight can be booked for $118. While the most popular route (San Diego - Houston Hobby) can be booked for $146 on average, our data indicates $359 when flying from San Diego to Houston.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Houston 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 San Diego to Houston?

    Currently, December is the cheapest month in which you can book a flight from San Diego to Houston (average of $57). Flying from San Diego to Houston in January 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

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Top 4 airlines flying from San Diego to Houston

Discover the top 4 airlines that operate flights from San Diego to Houston. 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 March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$83Average$189FlexibilityNo cancel feeOn-time65%
FrontierCheapest$128Average$261FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$248Average$479FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$257Average$444FlexibilityNo cancel feeOn-time63%

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