United's Economy Plus offers extra legroom, ideal for comfort on medium-haul flights.
United's MileagePlus program allows pooling miles, useful for family travel.
$70+ Cheap flights from George Bush Intcntl (IAH) 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SAN
Jan 11 — Jan 181
1 adult, Economy
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Find cheap flights from George Bush Intcntl to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Houston George Bush Intcntl to San Diego are usually found in January or October, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from George Bush Intcntl to San Diego
Cheapest flights from George Bush Intcntl to San DiegoExplore the most affordable flight options available from George Bush Intcntl to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.
Explore the most affordable flight options available from George Bush Intcntl to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/3110:35 pmIAH - SAN
1 stop13h 22mFrontier
Mon 1/57:21 pmSAN - IAH
2 stops21h 57mFrontier
Deal found 12/9![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/1710:45 amIAH - SAN
1 stop14h 01mFrontier
Tue 12/309:14 pmSAN - IAH
2 stops21h 25mFrontier
Deal found 12/10![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/3110:35 pmIAH - SAN
1 stop13h 22mFrontier
Sun 1/48:59 pmSAN - IAH
1 stop22h 34mFrontier
Deal found 12/10![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Mon 12/2911:32 amIAH - SAN
1 stop14h 27mFrontier
Fri 1/94:47 pmSAN - IAH
1 stop29h 44mFrontier
Deal found 12/11![Frontier logo]()
$230
This CheapOair deal was found by Cheapflights users on 12/10. 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 12/1710:45 amIAH - SAN
1 stop14h 01mFrontier
Wed 12/246:25 amSAN - IAH
1 stop26h 12mFrontier
Deal found 12/10![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Tue 12/3010:28 pmIAH - SAN
1 stop13h 29mFrontier
Tue 1/63:29 pmSAN - IAH
1 stop7h 02mFrontier
Deal found 12/11![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/1710:45 amIAH - SAN
1 stop14h 01mFrontier
Wed 12/3110:57 amSAN - IAH
2 stops11h 41mFrontier
Deal found 12/10![Frontier logo]()
$243
This CheapOair deal was found by Cheapflights users on 12/10. 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 12/2411:32 amIAH - SAN
1 stop9h 43mFrontier
Wed 1/73:29 pmSAN - IAH
1 stop7h 02mFrontier
Deal found 12/10![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/1710:45 amIAH - SAN
1 stop14h 01mFrontier
Mon 12/292:10 pmSAN - IAH
2 stops42h 27mFrontier
Deal found 12/10![Frontier logo]()
$261
Find flight deals from George Bush Intcntl to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) 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 December 12, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $175 (Kiwi.com) |
One-way from | $70 (Expedia) |
Popular in | March |
Cheapest in | January |
Average price | $427 |
Good round-trip deal | $437 or less |
Good one-way deal | $222 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from George Bush Intcntl 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 December 12, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to San Diego that are best for you.
Fly from
George Bush Intcntl
Fly to
San Diego
Route
Depart
Return
Price
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Fri 2/27
6:53 pm-10:04 am
1 stop17h 11m
San Diego
Tue 3/3
8:26 pm-4:33 pm
1 stop18h 07m
$371
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Wed 1/7
5:55 pm-9:47 am
2 stops17h 52m
San Diego
Wed 1/14
6:03 pm-4:55 pm
1 stop20h 52m
$376
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Sat 12/20
8:33 pm-1:15 pm
2 stops42h 42m
San Diego
Tue 12/23
9:14 pm-9:40 pm
1 stop22h 26m
$392
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Wed 1/21
8:15 pm-9:56 pm
Nonstop3h 41m
San Diego
Sat 1/24
1:51 pm-7:10 pm
Nonstop3h 19m
$419
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Thu 2/19
12:03 pm-1:47 pm
Nonstop3h 44m
San Diego
Mon 2/23
8:00 am-1:09 pm
Nonstop3h 09m
$429
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Tue 1/6
7:15 am-12:59 pm
1 stop7h 44m
San Diego
Sun 1/11
12:11 pm-5:25 pm
Nonstop3h 14m
$437
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Fri 2/27
2:54 pm-4:38 pm
Nonstop3h 44m
San Diego
Sun 3/1
8:00 am-1:09 pm
Nonstop3h 09m
$445
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Fri 1/30
9:30 am-11:05 am
Nonstop3h 35m
San Diego
Sun 2/1
6:15 am-3:14 pm
1 stop6h 59m
$455
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Tue 2/10
12:40 pm-5:28 pm
1 stop6h 48m
San Diego
Fri 3/13
5:50 pm-10:58 pm
Nonstop3h 08m
$466
HoustonSan Diego
IAH - SAN
IAHSAN
Houston George Bush Intcntl
Wed 1/7
12:40 pm-8:42 pm
1 stop10h 02m
San Diego
Wed 1/14
8:00 am-1:14 pm
Nonstop3h 14m
$466
Showing 1-10 of 22 results
Compare providers for flights from George Bush Intcntl to San Diego
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to San Diego in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-San Diego flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Houston George Bush Intcntl Airport-San Diego flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-San Diego flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from George Bush Intcntl to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from George Bush Intcntl 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 George Bush Intcntl Airport to San Diego
Prices
Airlines
Delays
More
How far ahead should I book a flight from Houston George Bush Intcntl Airport to San Diego?
Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to San Diego. Price data was last updated on December 5, 2025.
The price you pay for your flight from Houston George Bush Intcntl Airport to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 51 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 Houston George Bush Intcntl Airport to San Diego?
Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to San Diego (average of $54). Flying from Houston George Bush Intcntl Airport to San Diego in August is currently the most expensive (average of $123). 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 IAH to SAN?
Find hourly flight availability from George Bush Intcntl 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 December 12, 2025.
When flying from Houston George Bush Intcntl Airport to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 5% versus a flight in the evening.
What is the cheapest day to fly from Houston George Bush Intcntl Airport to San Diego?
Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to San Diego. Price data was last updated on December 6, 2025.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to San Diego flight should consider departing on Wednesday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 156 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?
Wednesday tends to have the lowest number of delays on this route, whereas Thursday 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.
What’s the top layover airport for flights from Houston George Bush Intcntl Airport to San Diego?
Share of 1-stop round-trip flights from Houston George Bush Intcntl Airport to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 60% of 1-stop itineraries from Houston George Bush Intcntl Airport to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from Houston George Bush Intcntl Airport to San Diego?
Average round-trip fare for 1-stop flights from Houston George Bush Intcntl Airport to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $197.
What’s the fastest layover option from Houston George Bush Intcntl Airport to San Diego?
Shortest average travel time for 1-stop one-way flights from Houston George Bush Intcntl Airport to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 11h 18m.
Which airport typically offers the quickest layover for flights from Houston George Bush Intcntl Airport to San Diego?
Average layover duration for 1-stop one-way flights from Houston George Bush Intcntl Airport to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 4h 08m.
The best insider tips for Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport to San Diego trip
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 December 12, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Spirit Airlines from Houston George Bush Intcntl Airport to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.6
Boarding
7.7
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Food
6.6
Boarding
7.7
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Food
6.6
Boarding
7.7
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Food
6.6
Boarding
7.7
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Food
6.6
Boarding
7.7
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Related info for your journey
Find useful and relevant information for your journey from George Bush Intcntl to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
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Alternative routes for George Bush Intcntl to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from George Bush Intcntl to San Diego
Discover the top 4 airlines that operate flights from George Bush Intcntl 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 December 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$113 | Average$200 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$117 | Average$188 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$216 | Average$485 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$321 | Average$481 | FlexibilityNo cancel fee | On-time69% |