Southwest AirlinesDepart15:35
Mon, Nov 16PDX → SAN
2h 20m · Direct
$121one way, per person
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- Cheapest fare
- $121
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 2h 15m
Southwest Airlines · Mon, Nov 16
from $121
Southwest Airlines and Alaska Airlines
1,500 km
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Cheapest month to fly from Portland to San Diego
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
Southwest Airlines
Frontier AirlinesDepart12:31
Fri, Nov 13PDX → SAN
3h 34m · 1 stop
$171one way, per person
View deal
Frontier AirlinesDepart12:31
Thu, Nov 12PDX → SAN
3h 34m · 1 stop
$174one way, per person
View deal
Alaska AirlinesDepart09:03
Wed, Nov 18PDX → SAN
2h 29m · Direct
$185one way, per person
View deal
Plan the rest of your trip to San Diego
Where to stay, what to do and getting around, from our travel partners.
About flights from Portland to San Diego
Portland (PDX) and San Diego (SAN) are about 1,500 km apart. Direct flights take around 2h 15m, and recent direct fares were with Southwest Airlines and Alaska Airlines. Over the next few months, one-way fares start from $121, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Portland to San Diego?
The cheapest one-way fare we've seen recently is $121 with Southwest Airlines, departing Monday, November 16, 2026.
What is the cheapest month to fly from Portland to San Diego?
November 2026 currently has the lowest fares, from $121 one way.
Are there direct flights from Portland to San Diego?
Yes. Recent direct fares were with Southwest Airlines and Alaska Airlines.
How long is the flight from Portland to San Diego?
A direct flight takes about 2h 15m. Portland and San Diego are around 1,500 km apart.
Which airlines fly from Portland to San Diego?
Recent fares on this route were with Southwest Airlines, Frontier Airlines and Alaska Airlines.
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