Flights to Carlsbad from Phoenix - $44

View $44 flight on Sat, Jun 28, 2025Opens in a new window

Popular airlines from Phoenix 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 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Phoenix to Carlsbad (PHX-SAN)

Prices were available within the past 7 days and start at $44 for one-way flights and $80 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Jun 2 - Wed, Jun 4
PHX
Phoenix
SAN
San Diego
$80 Roundtrip, found 1 hour ago
$80
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Mon, Jun 2 from Phoenix to San Diego, returning Wed, Jun 4, priced at $80 found 1 hour ago
Spirit Airlines
Thu, May 15 - Wed, May 21
PHX
Phoenix
SAN
San Diego
$88 Roundtrip, found 15 hours ago
$88
Roundtrip
found 15 hours ago
Select Spirit Airlines flight, departing Thu, May 15 from Phoenix to San Diego, returning Wed, May 21, priced at $88 found 15 hours ago
Frontier Airlines
Sat, Jun 28 - Tue, Jul 1
PHX
Phoenix
SAN
San Diego
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jun 28 from Phoenix to San Diego, returning Tue, Jul 1, priced at $88 just found
Frontier Airlines
Mon, Jun 2 - Wed, Jun 4
PHX
Phoenix
SAN
San Diego
$93 Roundtrip, found 1 hour ago
$93
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Jun 2 from Phoenix to San Diego, returning Wed, Jun 4, priced at $93 found 1 hour ago
Frontier Airlines
Sat, Jul 12 - Tue, Jul 15
PHX
Phoenix
SAN
San Diego
$94 Roundtrip, found 1 hour ago
$94
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Phoenix to San Diego, returning Tue, Jul 15, priced at $94 found 1 hour ago
Spirit Airlines
Mon, Jun 2 - Wed, Jun 4
PHX
Phoenix
SAN
San Diego
$96 Roundtrip, found 1 hour ago
$96
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Mon, Jun 2 from Phoenix to San Diego, returning Wed, Jun 4, priced at $96 found 1 hour ago

Find the cheapest month to fly from Phoenix (PHX) to San Diego (SAN)

May is typically the cheapest month to fly

From $48 - $133 per traveler.

Graph displaying average flight prices per month

*Available to One Key members.