$82 Find Cheap Flights from San Diego to Houston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Houston departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Houston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Houston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$208
Overall average: $387
Multiple Airlines
Sat 1/31Mon 2/2
SAN - IAH • 1 stop
Cheapest non-stop
$409
Typical prices: $431-$595
Southwest
Tue 3/24Tue 3/31
SAN - HOU • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom for comfort.
Southwest's two free checked bags save on luggage fees.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $210 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
SAN-IAH
Cheapest
SAN-IAH
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 26% compared to booking last minute.
Insights
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We hope you love your trip to Houston!
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Houston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Houston

Sat, Jan 31 - Mon, Feb 2
Multiple Airlines Logo
10:34 am - 11:39 pm
SAN
-
IAH
11h 05m1 stop
Multiple Airlines Logo
8:00 am - 5:03 pm
IAH
-
SAN
11h 03m2 stops
$208Multiple Airlines
Tue, Feb 17 - Fri, Feb 27
Multiple Airlines Logo
8:00 am - 12:57 am
SAN
-
IAH
14h 57m2 stops
Multiple Airlines Logo
7:34 pm - 12:08 am
IAH
-
SAN
6h 34m1 stop
$209Multiple Airlines
Mon, Jan 5 - Tue, Jan 13
Frontier Logo
8:10 pm - 12:31 am
SAN
-
IAH
26h 21m2 stops
Frontier Logo
12:30 pm - 11:07 pm
IAH
-
SAN
12h 37m1 stop
$210Frontier
Mon, Jan 26 - Thu, Feb 5
Frontier Logo
10:01 pm - 3:13 pm
SAN
-
IAH
15h 12m2 stops
Frontier Logo
12:55 pm - 5:03 pm
IAH
-
SAN
6h 08m1 stop
$211Frontier
Sun, Feb 1 - Mon, Feb 2
Multiple Airlines Logo
3:56 pm - 5:55 am
SAN
-
IAH
11h 59m2 stops
Multiple Airlines Logo
4:47 pm - 12:08 am
IAH
-
SAN
9h 21m1 stop
$212Multiple Airlines
Sun, Mar 8 - Wed, Mar 11
Frontier Logo
6:25 am - 12:39 am
SAN
-
IAH
16h 14m1 stop
Frontier Logo
10:47 am - 2:31 pm
IAH
-
SAN
5h 44m1 stop
$213Frontier
Wed, Jan 28 - Wed, Feb 4
Southwest Logo
6:10 pm - 11:15 pm
SAN
-
HOU
3h 05mnonstop
Southwest Logo
4:55 pm - 6:30 pm
HOU
-
SAN
3h 35mnonstop
$409Southwest
Wed, Jan 28 - Wed, Feb 4
Southwest Logo
12:35 pm - 5:40 pm
SAN
-
HOU
3h 05mnonstop
Southwest Logo
9:00 am - 1:30 pm
HOU
-
SAN
6h 30m1 stop
$415Southwest
Tue, Jan 27 - Wed, Feb 4
Delta Logo
6:30 am - 4:10 pm
SAN
-
HOU
7h 40m1 stop
Delta Logo
5:04 pm - 10:45 pm
HOU
-
SAN
7h 41m1 stop
$429Delta
Wed, Feb 18 - Fri, Feb 20
American Airlines Logo
9:15 am - 7:55 pm
SAN
-
HOU
8h 40m1 stop
American Airlines Logo
6:00 am - 9:59 am
HOU
-
SAN
5h 59m1 stop
$432American Airlines
Booking Insights

KAYAK's insights & trends for San Diego to Houston flights

Get data-powered insights and trends into flights from San Diego to Houston to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Diego to Houston flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from San Diego to Houston costs $275 on the route between San Diego (SAN) and Houston George Bush Intcntl Airport (IAH). The most popular route is between San Diego (SAN) and Houston George Bush Intcntl Airport (IAH).

What’s the cheapest day of the week to fly from San Diego to Houston?

The average price of all round-trip flights from San Diego to Houston clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Diego to Houston, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Houston, Tuesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Houston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Houston is August, where tickets cost $269 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $479 and $469 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Houston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Houston, you should book around 4 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from San Diego to Houston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United's Economy Plus offers up to 6 inches more legroom than standard economy seats.


Purchase Priority Boarding to secure overhead bin space, placing you in Zone 2.

Southwest

Southwest offers free carry-on and personal item, but checked bags now incur fees.


Southwest's Wi-Fi allows streaming and messaging; download the app beforehand for entertainment access.

Airports
SAN

Security lines at SAN are generally manageable, with peak wait times around 30–35 minutes. Arrive early to ensure a smooth departure.

IAH

IAH offers free Wi-Fi across all terminals. Look for the 'Free Airport WIFI' network for connectivity.

HOU

Expect a 20-minute car ride from HOU to downtown Houston. Rideshares are about twice as cheap as from IAH.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

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
Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
John Walton

John Walton

Expert on IAH

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on HOU

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

Good to know

Cheapest flight$83
Flight from San Diego to Houston George Bush Airport

When to book flights from San Diego to Houston

Are your dates flexible? Find out the best times to travel from San Diego to Houston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Houston

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

    In the last 3 days, the lowest price for a flight from San Diego to Houston was $83 for a one-way ticket and $208 for a round-trip.

  • Do I need a passport to fly between San Diego and Houston?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Diego and on arrival in Houston.

  • Which aircraft models fly most regularly from San Diego to Houston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Houston?

    SkyTeam, and Star Alliance are the airline alliances operating flights between San Diego and Houston, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Houston from San Diego?

    Las Vegas is the most popular layover city among KAYAK users traveling from San Diego to Houston.

  • How does KAYAK find such low prices on flights from San Diego to Houston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Houston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Houston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Houston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston with an airline and back to San Diego with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Houston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from San Diego to Houston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Diego to Houston.
Find which airlines fly direct from San Diego Airport to Houston, which days they fly and book direct flights.

Direct departures

San Diego to Houston

Monday

Southwest, United Airlines

Southwest, United Airlines

Tuesday

Southwest, United Airlines

Southwest, United Airlines

Wednesday

Southwest, United Airlines

Southwest, United Airlines

Thursday

Southwest, United Airlines

Southwest, United Airlines

Friday

Southwest, United Airlines

Southwest, United Airlines

Saturday

Southwest, United Airlines

Southwest, United Airlines

Sunday

Southwest, United Airlines

Southwest, United Airlines

See more direct flights

Direct returns

Houston to San Diego

Monday

Southwest, United Airlines

Southwest, United Airlines

Tuesday

Southwest, United Airlines

Southwest, United Airlines

Wednesday

Southwest, United Airlines

Southwest, United Airlines

Thursday

Southwest, United Airlines

Southwest, United Airlines

Friday

Southwest, United Airlines

Southwest, United Airlines

Saturday

Southwest, United Airlines

Southwest, United Airlines

Sunday

Southwest, United Airlines

Southwest, United Airlines

See more direct flights

Reviews of the top 5 airlines serving from San Diego to Houston

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Houston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4250 reviews
7.0Food
7.5Entertainment
8.6Crew
8.0Comfort
8.1Boarding
Airline reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

8.0 ExcellentRussell, Dec 2025
SAN - OAK
Read more Southwest reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Everything a cheap airline should be at normal airline rates.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Was good. I miss the free 2 checked bags. That was part of what made Southwest special

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Even though we were delayed, we were able to make our connection

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Our flight got rescheduled 48 hours later, the airline didn’t pay a penny for our expenses.

My baby was crying uncontrollably for the longest time and the entire crew was SO supportive, I’m so appreciative of them. Thank you so much for the support during an exhausting moment. We got very lucky.

Uncomfortable seats and tiny tray table. Expensive snacks. Flight was on time and crew was pleasant but take me back to Southwest!

Boarding and unboarding processes were pretty smooth. I gave a low score for Boarding because of how my flight was missing from all the boards at the airport, and when I checked the flight status on the Spirit website, it said it would be departing from Terminal E, gate D15. There are no "D" gates in terminal E.

The staff was very very rude in Las Vegas when boarding the flight. When presenting the boarding ticket. Las Vegas flight, it was hot and stuffy, it smelled really bad.

I didn't order food. I requested a Tomato juice and was given a boody mary mix. The serve needs to warn the customer what their given. It wasn't a huge deal, but I wasted $4.50.

EVERYTHING! It was so bad that I will be filing a claim for reimbursement for my seat as I could not fully sit in it due to an obese person being next to me and spilling over into my "space." And my personal item in the overhead been got crushed between two suitcases, so now my business laptop has been damaged beyond repair. Also, it was expensive! Since you pay for EVERYTHING, the cost of the trip was probably more than if you I used an airline that was not discounted. I will NEVER fly Spirit Airlines again!

One of worst experienc my family have every had with this airline. I was informed my Kayak that my flight was delayed and that my family will not make it to houston for our connecting flight. I contacted Spirit customer service to get my family on a later flight due to the delay in Vagas and them not making their connecting flight. The customer rep keep telling me that the flight from vagas is on time and not delayed. She even make to go to the spirit app on my phone and show me how to look up weather or not the flight was delayed. The app showed "on time" 20 minutes later when my family arrived at the airport for their flight, they were told that the flight was delayed and she will not make her connecting flight. I call spirit airline customer support again that night and spoke to another rep who apologize for his collegue and he told me that my family will receive a credit for this, this was on Saturday I still have not received the credit or an email letting me know when I will be credited for this inconvenience. This is not good business and it need to be fixed.

I liked how cheap it was but both my flights were delayed heavily

It was okay delay was long but I made it

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

My flight was canceled I was promised a reginf still not received.

The confirmation # CK8GNW and my name was not recognized/in Frontier system. I was able to check in on Frintier app so i went to the Frontier ticket agent, at time they told me that my name/ confirmation did not show up as a purchased ticket. I had to purchase a new ticket that cost $289.00 one way.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Worst airline experience. They were rude and kept changing our seats and/or giving our seats away so our family didn’t get to sit with each other. Almost everyone we dealt with at both airports with this airline was rude. The app kept giving us wrong information making things take longer. Dealing with them before TSA can take close to an hour…longer than I’ve ever had to deal with before. Never using this airline again.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

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

Information on your arrival and departure airports