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Cheap flights from Houston to San Diego from $91

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to San Diego departing on 10/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Multiple Airlines Logo
4:30 pm - 8:51 pmIAH-SAN
6h 21m1 stop
Multiple Airlines Logo
1:06 pm - 11:36 pmSAN-IAH
8h 30m1 stop
$186Multiple Airlines
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Sat, Oct 18 - Fri, Oct 24
Frontier Logo
9:08 pm - 10:24 pmIAH-SAN
27h 16m1 stop
Frontier Logo
7:15 am - 11:09 amSAN-IAH
25h 54m1 stop
$189Frontier
Find Deal
Mon, Sep 29 - Wed, Oct 1
Spirit Airlines Logo
9:26 pm - 7:29 amIAH-SAN
12h 03m1 stop
Spirit Airlines Logo
6:15 am - 4:43 pmSAN-IAH
8h 28m1 stop
$193Spirit Airlines
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Sun, Sep 28 - Sat, Oct 4
Spirit Airlines Logo
7:10 am - 11:34 pmIAH-SAN
18h 24m2 stops
Spirit Airlines Logo
6:15 am - 4:43 pmSAN-IAH
8h 28m1 stop
$198Spirit Airlines
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Wed, Oct 1 - Fri, Oct 3
American Airlines Logo
4:24 pm - 8:20 pmHOU-SAN
5h 56m1 stop
American Airlines Logo
7:21 am - 5:54 pmSAN-HOU
8h 33m1 stop
$347American Airlines
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Fri, Nov 7 - Tue, Nov 11
Southwest Logo
7:50 am - 9:10 amHOU-SAN
3h 20mnonstop
Southwest Logo
7:35 am - 12:50 pmSAN-HOU
3h 15mnonstop
$371Southwest
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Wed, Oct 8 - Sat, Oct 11
Southwest Logo
7:50 am - 9:10 amHOU-SAN
3h 20mnonstop
Southwest Logo
5:10 pm - 12:15 amSAN-HOU
5h 05m1 stop
$377Southwest
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Wed, Oct 15 - Wed, Oct 22
American Airlines Logo
8:11 pm - 11:40 pmHOU-SAN
5h 29m1 stop
American Airlines Logo
3:40 pm - 11:57 pmSAN-HOU
6h 17m1 stop
$393American Airlines
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Thu, Oct 30 - Thu, Nov 6
Delta Logo
2:22 pm - 9:20 pmHOU-SAN
8h 58m1 stop
Delta Logo
10:30 pm - 9:18 amSAN-HOU
8h 48m1 stop
$425Delta
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Sat, Oct 11 - Sat, Oct 18
Delta Logo
2:22 pm - 9:20 pmHOU-SAN
8h 58m1 stop
Delta Logo
10:30 pm - 9:18 amSAN-HOU
8h 48m1 stop
$435Delta
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Mon, Oct 13 - Fri, Oct 17

Frontier flights from Houston to San Diego

Our best Frontier deals on Houston to San Diego flight tickets
Frontier
Sep 29
IAH9:08 pmHouston George Bush Intcntl
27h 16m
1 stop
SAN10:24 pmSan Diego
Oct 1
SAN7:15 amSan Diego
25h 54m
1 stop
IAH11:09 amHouston George Bush Intcntl
$189
Find similar
Frontier
Sep 26
IAH9:08 pmHouston George Bush Intcntl
27h 16m
1 stop
SAN10:24 pmSan Diego
Sep 29
SAN6:35 amSan Diego
15h 04m
1 stop
IAH11:39 pmHouston George Bush Intcntl
$194
Find similar
Frontier
Oct 7
IAH11:36 amHouston George Bush Intcntl
14h 14m
1 stop
SAN11:50 pmSan Diego
Oct 11
SAN7:00 amSan Diego
14h 24m
1 stop
IAH11:24 pmHouston George Bush Intcntl
$195
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American Airlines flights from Houston to San Diego

Our best American Airlines deals on Houston to San Diego flight tickets
American Airlines
Nov 7
HOU4:24 pmHouston Hobby
5h 56m
1 stop
SAN8:20 pmSan Diego
Nov 11
SAN7:21 amSan Diego
8h 33m
1 stop
HOU5:54 pmHouston Hobby
$347
Find similar
American Airlines
Oct 30
HOU8:11 pmHouston Hobby
5h 29m
1 stop
SAN11:40 pmSan Diego
Nov 6
SAN3:40 pmSan Diego
6h 17m
1 stop
HOU11:57 pmHouston Hobby
$393
Find similar
American Airlines
Oct 8
HOU6:00 amHouston Hobby
5h 56m
1 stop
SAN9:56 amSan Diego
Oct 11
SAN3:14 pmSan Diego
5h 00m
1 stop
HOU10:14 pmHouston Hobby
$431
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momondo 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
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

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Sat 10/18

4:30 pm-8:51 pm

1 stop6h 21m

San Diego

Fri 10/24

1:06 pm-11:36 pm

1 stop8h 30m

$186

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Mon 9/29

9:08 pm-10:24 pm

1 stop27h 16m

San Diego

Wed 10/1

7:15 am-11:09 am

1 stop25h 54m

$189

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Sun 9/28

9:26 pm-7:29 am

1 stop12h 03m

San Diego

Sat 10/4

6:15 am-4:43 pm

1 stop8h 28m

$193

HoustonSan Diego

IAH - SAN

IAHSAN

Houston George Bush Intcntl

Wed 10/1

7:10 am-11:34 pm

2 stops18h 24m

San Diego

Fri 10/3

6:15 am-4:43 pm

1 stop8h 28m

$198

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Fri 11/7

4:24 pm-8:20 pm

1 stop5h 56m

San Diego

Tue 11/11

7:21 am-5:54 pm

1 stop8h 33m

$347

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Wed 10/8

7:50 am-9:10 am

Nonstop3h 20m

San Diego

Sat 10/11

7:35 am-12:50 pm

Nonstop3h 15m

$371

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Wed 10/15

7:50 am-9:10 am

Nonstop3h 20m

San Diego

Wed 10/22

5:10 pm-12:15 am

1 stop5h 05m

$377

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Thu 10/30

8:11 pm-11:40 pm

1 stop5h 29m

San Diego

Thu 11/6

3:40 pm-11:57 pm

1 stop6h 17m

$393

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Sat 10/11

2:22 pm-9:20 pm

1 stop8h 58m

San Diego

Sat 10/18

10:30 pm-9:18 am

1 stop8h 48m

$425

HoustonSan Diego

HOU - SAN

HOUSAN

Houston Hobby

Mon 10/13

2:22 pm-9:20 pm

1 stop8h 58m

San Diego

Fri 10/17

10:30 pm-9:18 am

1 stop8h 48m

$435

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Houston to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from Houston during the month August is also very affordable. Most momondo users find prices during this month for around $308.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Houston to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $448. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $542. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $455. Flights at noon are often more expensive with an average ticket price of $498.

What is the cheapest Houston to San Diego flight route?

Fly from Houston Hobby to San Diego for the best Houston - San Diego flight prices

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

You are more likely to see cheaper flights to San Diego from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $387 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Houston for as low as $331 on momondo.

What cabin class options are available on Houston to San Diego flights?

There are 4 cabin classes available to choose from on Houston to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Houston to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to San Diego

Fastest flight time

3h 15m

Direct flights

Every day

Airports in San Diego

1 airport
The fastest flight from Houston to San Diego takes 3h 15m
Direct flights go from Houston to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
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  • How far is Houston to San Diego by plane?

    Houston and San Diego are 1300.1 mi apart from one another. Flights usually cover this in 3h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Houston to San Diego Airport?

    Prices for flights from Houston to San Diego Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Houston to San Diego Airport?

  • How old do you have to be to fly from Houston to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Houston to San Diego

Compare and see reviews for airlines that fly from Houston to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $113Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $117Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $268Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
La Mesa
National City
Poway
Imperial Beach
San Ysidro
Borrego Springs
Lemon Grove
Alpine
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Houston to San Diego?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Houston to San Diego. momondo saves you time and could save you money on your trip.

Can I find flights from Houston to San Diego with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Diego from Houston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Houston to San Diego?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from Houston.

I’m not ready to book a flight from Houston to San Diego right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Houston and alert you when they change.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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