Cheap flights from Houston to Carlsbad

View AU$166 flight on Tue, 2 Sep. 2025Opens in a new window

Popular airlines from Houston to Carlsbad

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Houston (HOU) to Carlsbad (SAN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 21 Aug. - Thu, 28 Aug.
IAH
Houston
CLD
Carlsbad
AU$331 Return, found 1 day ago
AU$331
Return
found 1 day ago
Select American Airlines flight, departing Thu, 21 Aug. from Houston to Carlsbad, returning Thu, 28 Aug., priced at AU$331 found 1 day ago
American Airlines
Thu, 21 Aug. - Thu, 28 Aug.
IAH
Houston
SAN
San Diego
AU$331 Return, found 1 day ago
AU$331
Return
found 1 day ago
Select American Airlines flight, departing Thu, 21 Aug. from Houston to San Diego, returning Thu, 28 Aug., priced at AU$331 found 1 day ago
Delta
Thu, 21 Aug. - Thu, 28 Aug.
IAH
Houston
SAN
San Diego
AU$361 Return, found 1 day ago
AU$361
Return
found 1 day ago
Select Delta flight, departing Thu, 21 Aug. from Houston to San Diego, returning Thu, 28 Aug., priced at AU$361 found 1 day ago
Delta
Thu, 21 Aug. - Thu, 28 Aug.
IAH
Houston
SAN
San Diego
AU$392 Return, found 1 day ago
AU$392
Return
found 1 day ago
Select Delta flight, departing Thu, 21 Aug. from Houston to San Diego, returning Thu, 28 Aug., priced at AU$392 found 1 day ago
United
Thu, 21 Aug. - Thu, 28 Aug.
IAH
Houston
SAN
San Diego
AU$423 Return, found 1 day ago
AU$423
Return
found 1 day ago
Select United flight, departing Thu, 21 Aug. from Houston to San Diego, returning Thu, 28 Aug., priced at AU$423 found 1 day ago
Alaska Airlines
Thu, 21 Aug. - Thu, 28 Aug.
IAH
Houston
SAN
San Diego
AU$474 Return, found 1 day ago
AU$474
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 21 Aug. from Houston to San Diego, returning Thu, 28 Aug., priced at AU$474 found 1 day ago

Find the cheapest month to fly from Houston (HOU) to San Diego (SAN)

August is typically the cheapest month to fly

From AU$107 - AU$380 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.