SAN

$133 Find Cheap Flights from Houston to San Diego - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to San Diego departing on 10/1. 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

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Everything you should know

Cheapest round-trip
$305
Typical prices: $386-$464
Frontier
Sat 8/15Wed 8/19
IAH - SAN • 1 stop
Cheapest non-stop
$306
Typical prices: $391-$486
Southwest
Thu 9/3Sun 9/6
HOU - SAN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest free carry-on adds value, while checked bags now cost extra.
United Economy Plus adds up to six inches more legroom than standard economy.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $305 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest and United Airlines. Average duration is 3h 18m
Direct flights
Direct flights
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+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 7% average savings
Most popular
Insights
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Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 28% compared to booking last minute.
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Flight Deals

Cheap Flights from Houston to San Diego

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston to San Diego 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 Houston to San Diego

Sat, Aug 15 - Wed, Aug 19
Frontier Logo
6:14 pm - 11:51 pm
IAH
-
SAN
7h 37m
1 stop
Frontier Logo
6:25 am - 2:05 pm
SAN
-
IAH
5h 40m
1 stop
$305Frontier
Wed, Aug 12 - Wed, Aug 19
Frontier Logo
12:05 pm - 3:50 pm
IAH
-
SAN
5h 45m
1 stop
Frontier Logo
3:45 pm - 12:40 am
SAN
-
IAH
6h 55m
1 stop
$305Frontier
Thu, Sep 3 - Sun, Sep 6
Southwest Logo
8:50 pm - 10:10 pm
HOU
-
SAN
3h 20mnonstop
Southwest Logo
6:40 pm - 11:45 pm
SAN
-
HOU
3h 05mnonstop
$306Southwest
Fri, Sep 11 - Mon, Sep 14
Southwest Logo
8:50 pm - 10:10 pm
HOU
-
SAN
3h 20mnonstop
Southwest Logo
7:25 pm - 12:40 am
SAN
-
HOU
3h 15mnonstop
$306Southwest
Wed, Sep 16 - Tue, Sep 22
United Airlines Logo
4:24 pm - 5:46 pm
IAH
-
SAN
3h 22mnonstop
United Airlines Logo
3:04 pm - 8:19 pm
SAN
-
IAH
3h 15mnonstop
$307United Airlines
Wed, Nov 4 - Sun, Nov 8
United Airlines Logo
5:35 pm - 10:27 pm
IAH
-
SAN
6h 52m
1 stop
United Airlines Logo
8:05 am - 1:22 pm
SAN
-
IAH
3h 17mnonstop
$307United Airlines
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
7:58 pm - 11:59 pm
IAH
-
SAN
6h 01m
1 stop
Multiple Airlines Logo
9:01 am - 11:59 pm
SAN
-
IAH
12h 58m
2 stops
$308Multiple Airlines
Thu, Jan 7 - Mon, Jan 11
American Airlines Logo
2:24 pm - 9:58 pm
IAH
-
SAN
9h 34m
1 stop
American Airlines Logo
10:09 am - 11:27 pm
SAN
-
IAH
11h 18m
1 stop
$313American Airlines
Wed, Sep 9 - Sun, Sep 13
Delta Logo
11:01 am - 7:26 pm
HOU
-
SAN
10h 25m
1 stop
Delta Logo
10:30 pm - 10:00 am
SAN
-
HOU
9h 30m
1 stop
$317Delta
Wed, Oct 14 - Wed, Oct 21
American Airlines Logo
8:24 pm - 11:38 pm
HOU
-
SAN
5h 14m
1 stop
American Airlines Logo
3:07 pm - 11:49 pm
SAN
-
HOU
6h 42m
1 stop
$321American Airlines
Booking Insights

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

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

How much is a round-trip flight from Houston to San Diego?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Houston to San Diego departing in August.

Flight prices are below average for this route right now.

Flights to San Diego from Houston usually cost between $346 and $497 in August.
The lowest price found in the past 5 days was $305 on Frontier (Aug 12-Aug 19).

What is the cheapest Houston to San Diego flight route?

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

The cheapest return flight from Houston to San Diego costs $282 on the route between Houston Hobby Airport (HOU) and San Diego (SAN). Over the past month, flights between Houston George Bush Intcntl Airport (IAH) and San Diego (SAN) were, on average, 7% cheaper than other Houston-San Diego routes. This is also the most popular route.

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

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

When flying from Houston to San Diego, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Houston, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston to San Diego, 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 Houston to San Diego is October, where tickets cost $385 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $494 and $474 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston to San Diego, 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 Houston to San Diego, you should book around 3 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from Houston to San Diego

 
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.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

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.

Brandon Schultz

Brandon Schultz

Expert on SAN

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.

John Walton

John Walton

Expert on IAH

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.

Yulia Denisyuk

Yulia Denisyuk

Expert on HOU

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.

Good to know

Cheapest flight

$133
Flight from Houston Hobby Airport to San Diego

When to book flights from Houston to San Diego

Are your dates flexible? Find out the best times to travel from Houston to San Diego 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 Houston to San Diego

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

    In the last 5 days, the lowest price for a flight from Houston to San Diego was $133 for a one-way ticket and $305 for a round-trip.

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

    Yes, you’ll need a passport to travel to San Diego from Houston.

  • Which airports will I be using when flying from Houston to San Diego?

    When flying out of Houston you will be using one of these airports: Houston Hobby or Houston George Bush Intcntl. You will be landing at San Diego.

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

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

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

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

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

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

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

    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 Houston to San Diego.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Houston 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 Houston to San Diego?

    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 San Diego with an airline and back to Houston with another airline.

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

    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 San Diego from Houston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Houston to San Diego?

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

Direct departures

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

Direct returns

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

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

 
See real verified KAYAK customer reviews for airlines flying from Houston to San Diego. 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 Houston to San Diego? 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.
8.0
SouthwestOverall score based on 4230 reviews
8.1Boarding
8.6Crew
7.0Food
7.5Entertainment
8.0Comfort
Airline reviews

3 hour delay. Had to change plans and was still delayed.

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Our first flight was so delayed that we had 10 mins to board the next one. We requested if the flight attendant could allow us off there plane first and they denied our request even though I have seen this done before. Luck was on our side that we didn’t miss our next flight.

Everything was great except for the in-flight wifi that wasn't working.

It was great! The new boeing has much more space and charging ports!

Took a little longer than normal, but the process is clear and easy to understand.

Baggage check in would have been better if the service clerk told the other clerk that she was merging her two long lines of customers with her line so she could move luggage. Instead she only told the customers. When I told the agent and ask if she could direct who is next in line so we weren’t trying to cut in front of each other she said it’s not her problem and she can’t work three lines. I was shocked. Understood that they were working more than their share but some organization so the customers aren’t getting upset at each other would have gone a long way

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Overall we had a good experience during our flight from San Francisco to Houston.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Was a pain having to leave the plane and reboard but glad the plane was fixed

Connecting flights were poor,especially in Naples.our Lufthansa air bus was a joke.way too small for that long of a flight.no room at all.couldn’t even get out of the seats to move around or go to the bathrooms.we thought we were getting an actual air bus,double decker.i will never fly that long in a plane like that again.kind of misleading to call it an air bus.we actually had more room on our buses that we used.

For a 22 minute flight all you expect is for it to be safe and comfortable

Lost connnection had to stayON in Chicago Was a mess

Booked economy through United - air canada treated it as standby and was almost refused boarding.

The seat when "flat" was not flat and pad was too thin to cover it.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

We are too tired and frustrated to comment politely at this point

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

The service and food needs to improve to catch up with other international flights

The flight crew was fantastic! Which the seats had a small TV.

also wi-fi never worked attendant said satellite coverage is spotty over water ..... but we were over land!

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

This time my flight was smooth and uneventful. They started boarding even earlier than it was scheduled. I was pleasantly surprised. Thank you!

Boarding was a mess - the agent basically called every group in rapid succession, so there was no organization at all. The economy seats are a joke, and main cabin extra seats were sold out when I purchased my flight. As such, I was locked in the same position for four hours. Being 6’6”, it was impossible to get my bag out from under the seat in front of me, and I couldn’t have used my laptop even if my bag were accessible due to the minuscule seat pitch. Also the wifi was broken. American is a joke - can’t wait until they merge with Spirit.

A more comfortable seat. Padding would be really helpful but I've read the airlines don't want customers to be satisfied with economy seats.

Everything was good except checking bags . I had paid for two bags but it didn’t show so we had to do it again while people waited and we were struggling to get to our flight

Flight delayed 4 times on a non-stop from BOS to SFO. Then when landed in SFO had to wait for 30 mins for a gate AT 3:30AM.

The security line at JFK was one of the longest I’ve ever experienced - probably 45 minutes. I don’t know if JetBlue has control over it, but it detracted from the overall experience. Entertainment had good options, but the volume control was a bit small to tap on and the screen had a fair amount of interference blips. Clearer picture would have been better.

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

Great price, easy check in, love the free drinks and snacks, and nice crew. The only negative part was waiting for your seat assignment 5 minutes before boarding, and the seats are a bit uncomfortable.

It took an hour to get my bag after landing. Not exaggerating

Everything was good instead change the gates! I missed my first flight because it was changed the gate and I didn’t know!

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

I went to the Frontier counter in San Jose at 1030am or so on Sunday 10/13/24 to see if I could get an earlier flight to San Diego in lieu of my reserved 630pm flight. One thing led to another, and I was able to obtain an open seat for about $ 56. on the earlier flight. Fine. Then the agent asked if I "was checking a bag". Not knowing that carry-ons cost extra per Frontier policy, I thought that she meant a regular checked bag. Therefore, I said no. Once I got to the gate, the same gate agent who sold me a ticket told me that I had to pay $99 for a carry-on, and that all bags were extra on Frontier. Having never flown on Frontier, I was not aware of this. Part of the issue was that she was not a native English speaker, so there was a miscommunication as to what "bag" meant. I would have preferred for her to have clearly let me know at the front counter that any bag including a carry-on cost $99. It would have had the same outcome, as I had to take my carry-on. But it got hectic at the last minute at the gate itself. The baggage policy should have mentioned "including carry-ons" when we first spoke.

Literally everything could have been better. Why are the planes always late?

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

The boarding time. I was in Section 1 the lady in charge just let people in section 3 without see us. Make a line , I have to step out and ask her. We were in the line and she just take my ticket and that’s it, so if I don’t ask her she could leave us at the end! We paid more for that privilege and. She doesn’t care….

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

Information on your arrival and departure airports