Cheap Flights from Portland to San Diego
No deal from Portland to San Diego has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from Portland to San Diego, the lowest round-trip fare we recorded was $100, in August. The typical fare was $196. August was the cheapest month we saw and July the dearest.
The most recent price we saw on this route was $220 on Frontier and Southwest, seen Oct 16. It is an unverified observation and may have changed.
See every deal <a href="/from/portland">from Portland</a>, <a href="/to/san-diego">to San Diego</a>, or the return direction <a href="/from/san-diego/to/portland">San Diego to Portland</a>.
Latest price we saw: Portland to San Diego
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Portland (PDX) to San Diego (SAN) | $220 | 11.8¢ | Dec 4 – Dec 10 | Frontier and Southwest | Oct 16 | Check price |
Price history: Portland to San Diego
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $137 | $228 | 49 |
| Sep 2026 | $137 | $256 | 158 |
| Aug 2026 | $100 | $141 | 36 |
| Jul 2026 | $158 | $158 | 1 |
Frequently asked questions
How many flight deals from Portland to San Diego are on Sparkflights right now?
There are 0 verified deals from Portland to San Diego on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Portland to San Diego?
The lowest fare we've recorded from Portland to San Diego is $100, based on 244 price observations over 4 months.
How much does a flight from Portland to San Diego cost?
The typical round-trip fare we observed from Portland to San Diego is $196, against a recorded low of $100. These are observations, not quotes.
When is the cheapest month to fly Portland to San Diego?
August was the cheapest month we observed from Portland to San Diego and July the dearest, over 4 months of data.
What is the current price from Portland to San Diego?
The most recent fare our sweep saw from Portland to San Diego is $220, on Oct 16. It is an unverified observation rather than a verified deal, so check it before booking.