Cheap flights from San Diego to Portland from $99

The cheapest month to fly to Portland from San Diego is in January. Flight prices, which tend to average around $197, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in January, then you should wait until April to fly from San Diego, when ticket prices are also cheap, with an average price of $240.

The cheapest day to depart on your flight to Portland is on a Friday when prices can be found for as low as $294. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Monday, with ticket prices averaging around $372.

The cheapest time of day to fly to Portland is in the evening when flights can be purchased for as low as $280. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $326 per ticket.

Fly from San Diego to Portland for the best San Diego - Portland flight prices

You are more likely to see cheaper flights to Portland from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $282 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from San Diego for as low as $189 on momondo.

There are 4 cabin classes available to choose from on San Diego to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Alaska Airlines and Delta are the most popular carriers operating from San Diego to Portland

Alaska Airlines, Southwest and Frontier are the top three most popular airlines that fly to Portland from San Diego according to our data. Alaska Airlines is the first choice among our users, with 73% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 7 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

4 flights are operational daily from San Diego to Portland as of July 2026. The most popular departure time for this route is 2:00PM, with 50% of flights per day taking off at noon.

As of July 2026, 31 flights take off from San Diego and land in Portland each week. The most common flight departure day for this route is Fri, with 26% of weekly flights taking off on this day.