Cheap flights from Portland to San Diego

View AU$121 flight on Sat, 20 Sep. 2025Opens in a new window

Popular airlines from Portland to San Diego

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Cheap Flights from Portland (PDX) to San Diego (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.

Delta
Sun, 14 Sep. - Sun, 21 Sep.
PDX
Portland
SAN
San Diego
AU$381 Return, found 4 days ago
AU$381
Return
found 4 days ago
Select Delta flight, departing Sun, 14 Sep. from Portland to San Diego, returning Sun, 21 Sep., priced at AU$381 found 4 days ago
Alaska Airlines
Sun, 14 Sep. - Sun, 21 Sep.
PDX
Portland
SAN
San Diego
AU$382 Return, found 4 days ago
AU$382
Return
found 4 days ago
Select Alaska Airlines flight, departing Sun, 14 Sep. from Portland to San Diego, returning Sun, 21 Sep., priced at AU$382 found 4 days ago
American Airlines
Sun, 14 Sep. - Sun, 21 Sep.
PDX
Portland
CLD
Carlsbad
AU$384 Return, found 4 days ago
AU$384
Return
found 4 days ago
Select American Airlines flight, departing Sun, 14 Sep. from Portland to Carlsbad, returning Sun, 21 Sep., priced at AU$384 found 4 days ago
Delta
Sun, 14 Sep. - Sun, 21 Sep.
PDX
Portland
SAN
San Diego
AU$397 Return, found 4 days ago
AU$397
Return
found 4 days ago
Select Delta flight, departing Sun, 14 Sep. from Portland to San Diego, returning Sun, 21 Sep., priced at AU$397 found 4 days ago
Alaska Airlines
Sun, 14 Sep. - Sun, 21 Sep.
PDX
Portland
SAN
San Diego
AU$398 Return, found 4 days ago
AU$398
Return
found 4 days ago
Select Alaska Airlines flight, departing Sun, 14 Sep. from Portland to San Diego, returning Sun, 21 Sep., priced at AU$398 found 4 days ago
United
Sun, 14 Sep. - Sun, 21 Sep.
PDX
Portland
SAN
San Diego
AU$738 Return, found 4 days ago
AU$738
Return
found 4 days ago
Select United flight, departing Sun, 14 Sep. from Portland to San Diego, returning Sun, 21 Sep., priced at AU$738 found 4 days ago

Find the cheapest month to fly from Portland (PDX) to San Diego (SAN)

November is typically the cheapest month to fly

From AU$92 - AU$429 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.