Cheap Flights from Houston to San Diego
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Deals from
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RatePunk searches hundreds of travel sites at once for deals on flights to San Diego
Prices updated 24 days ago
486,190 searches this week
171 airlines compared
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Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)
Today’s best flight deals from Houston to San Diego
Explore current cheapest deals departing from Houston to San Diego
Round trip
Sort by: Cheapest
September 15 - September 21
IAH - San Diego
$237
$143
Round trip
September 14 - September 21
IAH - San Diego
$235
$143
Round trip
September 23 - September 28
IAH - San Diego
$247
$157
Round trip
September 15 - September 29
IAH - San Diego
$214
$160
Round trip
September 15 - October 6
IAH - San Diego
$206
$160
Round trip
September 21 - October 6
IAH - San Diego
$215
$160
Round trip
September 21 - September 29
IAH - San Diego
$235
$160
Round trip
September 22 - October 6
IAH - San Diego
$220
$160
Round trip
September 14 - September 29
IAH - San Diego
$208
$160
Round trip
September 22 - September 29
IAH - San Diego
$241
$160
Round trip
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Route Intelligence — 486,190 Searches this Week
Insights for flights from Houston to San Diego
How much is a round trip from Houston to San Diego
Regular price: $195 - $308
Prices for flights from Houston to San Diego are currently below the regular range.
The regular price range for this route is between $195 and $308. The current lowest deal is $143 with Frontier Airlines, for travel from Sep 15 to Sep 21.
now $143
Low $195
High $308
The cheapest time to fly from Houston to San Diego
The cheapest month to fly from Houston to San Diego is November, with a median price of $135. The most expensive month is June, with a median price of $648. Prices are generally lower from February to November.
November
Flights from $135
June
Flights from $648
Direct flights from Houston to San Diego
United Airlines
Last-minute flights going from Houston to San Diego
Tue, Jul 7
IAH - San Diego
Houston (IAH) - San Diego (SAN)
Frontier Airlines
$236
$231
One-way
Wed, Jul 8
IAH - San Diego
Houston (IAH) - San Diego (SAN)
Frontier Airlines
$240
$194
One-way
Wed, Jul 8
IAH - San Diego
Houston (IAH) - San Diego (SAN)
Frontier Airlines
$236
$234
One-way
Tue, Jul 14
IAH - San Diego
Houston (IAH) - San Diego (SAN)
Frontier Airlines
$233
$228
One-way
Wed, Jul 15
IAH - San Diego
Houston (IAH) - San Diego (SAN)
Frontier Airlines
$233
$199
One-way
Mon, Jul 20
IAH - San Diego
Houston (IAH) - San Diego (SAN)
Frontier Airlines
$227
$188
One-way
Biggest price drops on these dates for flights from Houston to San Diego
Aug 14 - Aug 18
$380 → $235
38%
Sep 15 - Sep 21
$237 → $143
40%
Sep 14 - Sep 21
$235 → $143
39%
Sep 23 - Sep 28
$247 → $157
37%
Popular Airports to fly from Houston to San Diego
Houston - San Diego route insights
💸 Price insights
Recent fares are near the typical level
Recent fares from HOU to SAN are near the typical level of $465.
📅 Best time to fly
November is historically cheapest at $135
Historically, November is the cheapest month to fly from Houston to San Diego, at $135.
⏱️ Flight duration
Connecting flights average 16h 45m
The typical flight duration from Houston to San Diego is 16h 45m, with 2 stopovers.
✈️ Airlines & availability
Connecting flights are dominant
Connecting flights make up 78.2% of deals. United Airlines offers direct flights.
🏆 Airline highlight
United Airlines offers direct flights
United Airlines has offered direct flights from Houston to San Diego in recent deals.
🎯 Booking tip
Deals appear frequently
Historically, deals from Houston to San Diego appear frequently, averaging 1.03 deals per day.
Houston main airports to depart from
George Bush Intercontinental (IAH)
George Bush Intercontinental Airport (IAH) is a good option for flights from Houston to San Diego.
📍 ~30 km from Houston city center (reachable by car).
💸 Flights from ~$143
William P. Hobby (HOU)
William P. Hobby Airport (HOU) is a convenient choice for flights from Houston to San Diego.
📍 ~15 km from Houston city center (reachable by car).
💸 Flights from ~$143
San Diego main airports to arrive at
San Diego International (SAN)
San Diego International Airport is a convenient arrival choice for flights from Houston to San Diego.
📍 ~5 km from San Diego city center (reachable by car)
💸 Flights from ~$143
McClellan–Palomar (CLD)
McClellan–Palomar Airport offers an alternative arrival option for flights to the San Diego area.
📍 ~50 km from San Diego city center (reachable by car)
💸 Flights from ~$330
Airports nearby San Diego used as alternative
Tijuana International (TIJ)
Tijuana International (TIJ) is an excellent alternative for Mexico flights, with direct access via the Cross Border Xpress (CBX) terminal.
📍 ~25 km from San Diego (reachable by car, requires international border crossing)
💸 Flights from ~$266
John Wayne (SNA)
John Wayne (SNA) is a close major US domestic alternative, often less congested than LAX.
📍 ~135 km from San Diego (reachable by car)
💸 Flights from ~$181
Los Angeles International (LAX)
Los Angeles International (LAX) offers the most extensive international and domestic route options, often with competitive pricing.
📍 ~190 km from San Diego (reachable by car)
💸 Flights from ~$132
Ontario International (ONT)
Ontario International (ONT) is a reliable domestic alternative with growing service, often less congested than LAX or SNA.
📍 ~180 km from San Diego (reachable by car)
💸 Flights from ~$134
Long Beach (LGB)
Long Beach (LGB) is easy to navigate with fast security, offering a good alternative for specific West Coast routes.
📍 ~160 km from San Diego (reachable by car)
💸 Flights from ~$227
Business & First Class Flight Deals to San Diego
Discover luxury on the budget with premium cabin class on flights from Houston to San Diego.
Elite
Best Elite deals to San Diego
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From IAH
Elite
Jul 29
San Diego, United States
85% AI deal score
$1,198
$699
Save $499
From IAH
Elite
Jul 14
San Diego, United States
85% AI deal score
$1,198
$699
Save $499
From IAH
Elite
Jul 14
San Diego, United States
85% AI deal score
$1,218
$699
Save $519
From IAH
Elite
Jul 07
San Diego, United States
85% AI deal score
$1,220
$699
Save $521
From IAH
Elite
Jul 28
San Diego, United States
85% AI deal score
$1,219
$699
Save $520
From IAH
Elite
Jul 15
San Diego, United States
85% AI deal score
$1,196
$699
Save $497
From IAH
Elite
Aug 04
San Diego, United States
79% AI deal score
$1,118
$827
Save $291
From IAH
Elite
Aug 22
San Diego, United States
78% AI deal score
$1,163
$855
Save $308
From IAH
Elite
Dec 02
San Diego, United States
74% AI deal score
$1,906
$1,293
Save $613
From IAH
Elite
Sep 10
San Diego, United States
74% AI deal score
$2,059
$1,329
Save $730
From IAH
Elite
Sep 12
San Diego, United States
74% AI deal score
$2,111
$1,329
Save $782
From IAH
Elite
Aug 19
San Diego, United States
73% AI deal score
$1,938
$1,346
Save $592
From IAH
Elite
Aug 26
San Diego, United States
73% AI deal score
$1,025
$827
Save $198
From IAH
Elite
Aug 11
San Diego, United States
73% AI deal score
$1,068
$855
Save $213
From IAH
Elite
Aug 05
San Diego, United States
73% AI deal score
$1,012
$699
Save $313
From IAH
Elite
Aug 05
San Diego, United States
73% AI deal score
$1,012
$699
Save $313
From IAH
Elite
Jul 14
San Diego, United States
72% AI deal score
$1,946
$1,416
Save $530
From IAH
Elite
Jul 21
San Diego, United States
72% AI deal score
$1,934
$1,416
Save $518
From IAH
Elite
Jul 22
San Diego, United States
72% AI deal score
$1,934
$1,416
Save $518
From IAH
Elite
Aug 19
San Diego, United States
72% AI deal score
$1,963
$1,462
Save $501
From IAH
Elite
Jul 14
San Diego, United States
72% AI deal score
$1,950
$1,480
Save $470
From IAH
Elite
Jul 14
San Diego, United States
72% AI deal score
$1,932
$1,480
Save $452
From IAH
Elite
Jul 10
San Diego, United States
72% AI deal score
$1,945
$1,480
Save $465
From IAH
Elite
Jul 21
San Diego, United States
72% AI deal score
$1,934
$1,480
Save $454
From IAH
Elite
Oct 14
San Diego, United States
72% AI deal score
$936
$727
Save $209
From IAH
Elite
Jul 21
San Diego, United States
71% AI deal score
$1,926
$1,480
Save $446
From IAH
Elite
Oct 20
San Diego, United States
71% AI deal score
$953
$827
Save $126
From IAH
Elite
Oct 13
San Diego, United States
71% AI deal score
$945
$827
Save $118
From IAH
Elite
Aug 22
San Diego, United States
71% AI deal score
$1,024
$883
Save $141
From IAH
Elite
Sep 29
San Diego, United States
70% AI deal score
$905
$827
Save $78
From IAH
Elite
Nov 25
San Diego, United States
70% AI deal score
$982
$873
Save $109
From IAH
Elite
Sep 22
San Diego, United States
69% AI deal score
$889
$827
Save $62
From IAH
Elite
Sep 08
San Diego, United States
69% AI deal score
$874
$827
Save $47
From IAH
Elite
Oct 10
San Diego, United States
69% AI deal score
$945
$883
Save $62
From IAH
Elite
Sep 21
San Diego, United States
69% AI deal score
$963
$883
Save $80
From IAH
Elite
Oct 10
San Diego, United States
69% AI deal score
$920
$843
Save $77
From IAH
Elite
Sep 02
San Diego, United States
68% AI deal score
$870
$827
Save $43
From IAH
Elite
Oct 03
San Diego, United States
68% AI deal score
$935
$883
Save $52
From IAH
Elite
Oct 05
San Diego, United States
68% AI deal score
$935
$883
Save $52
From IAH
Elite
Sep 26
San Diego, United States
68% AI deal score
$905
$883
Save $22
From IAH
Elite
Oct 23
San Diego, United States
68% AI deal score
$937
$879
Save $58
From IAH
Elite
Oct 22
San Diego, United States
67% AI deal score
$958
From IAH
Elite
Oct 19
San Diego, United States
66% AI deal score
$990