Portland to San Diego flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are low right now
$133 is $173 (57%) below the usual $306 for Portland → San Diego.
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when Portland → San Diego drops below your price.Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | $502 |
| October 2026 | $238 |
| November 2026 | $402 |
| December 2026 | $374 |
| January 2027 | $133 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Oct 13 – 15 2 nights · leave Tue$238 −22% vs usual$238 −22% vs usual Book
Alaska Airlines 1 stop · 3h 28m -
Oct 7 – 9 2 nights · leave Wed$310$310 Book
Alaska Airlines Nonstop · 2h 33m
-
Dec 27 – 29 2 nights · leave Sun$374 +22% vs usual$374 +22% vs usual Book
Alaska Airlines Nonstop · 2h 37m
-
Nov 29 – Dec 2 3 nights · leave Sun$402 +31% vs usual$402 +31% vs usual Book
Southwest Airlines 1 stop · 3h 20m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
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Plan the rest of your trip
San Diego · Jan 7 – 11, 2027Travel insurance · EKTA Airport transfer · Kiwitaxi
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Good to know
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Portland to San Diego: questions
How much is a flight from Portland to San Diego?
The cheapest round trip we have found right now is $133, leaving January 7 and returning January 11. The usual price on this route is about $306, so this fare is 57% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from Portland to San Diego?
January 2027, with round trips from $133. The most expensive month in our data is September (from $502). Based on the 5 months ahead we have prices for.
About this route
We track round-trip economy fares from Portland (United States) to San Diego (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $133, departing January 7 and returning January 11 on a nonstop flight, about 57% below the usual $306. The cheapest month to fly in our data is January, from $133. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.