Cheap flights from Portland to San Diego from $31
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to San Diego departing on 3/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Portland to San Diego
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Frontier flights from Portland to San Diego
Our best Frontier deals on Portland to San Diego flight tickets
Alaska Airlines flights from Portland to San Diego
Our best Alaska Airlines deals on Portland to San Diego flight tickets
See travel insights to San Diego from
How to get the cheapest flight ticket from Portland to San Diego
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Diego?
If you are unable to visit San Diego during the month of September, then departing from Portland during the month August is also very affordable. Most momondo users find prices during this month for around $196.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from Portland to San Diego is on a Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $270. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $298. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.
What is the cheapest time of day to depart on your flight to San Diego?
The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $228. Flights at noon are often more expensive with an average ticket price of $303.
What is the cheapest Portland to San Diego flight route?
Fly from Portland to San Diego for the best Portland - San Diego flight prices
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from Portland when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $258 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Portland for as low as $218 on momondo.
What cabin class options are available on Portland to San Diego flights?
There are 4 cabin classes available to choose from on Portland to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Portland to San Diego?
Spirit Airlines, Frontier, and Hawaiian Airlines are the most popular carriers operating from Portland to San Diego
What airlines fly to San Diego?
Alaska Airlines, Frontier and Spirit Airlines are the top three most popular airlines that fly to San Diego from Portland according to our data. Alaska Airlines is the first choice among our users, with 69% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 8 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from Portland to San Diego on average per day?
6 flights are operational daily from Portland to San Diego as of February 2025. The most popular departure time for this route is 9:00PM, with 35% of flights per day taking off in the afternoon.
How many flights depart from Portland to San Diego on average per week?
The number of flights available between Portland and San Diego is 48 per week as of February 2025. The most frequent departure day is Thu, with 21% of weekly flights leaving on this day.
When to book flights from Portland to San Diego
Cheap Portland to San Diego (PDX to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to San Diego
How far is Portland to San Diego by plane?
Portland and San Diego are 931.8 mi apart from one another. A reasonable flight in good conditions will take 2h 26m.
When did momondo last update prices for flights from Portland Airport to San Diego Airport?
Prices for flights from Portland Airport to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to San Diego Airport?
As of February 2025, there are 7 operators available to choose from for flights from Portland Airport to San Diego Airport.
How old do you have to be to fly from Portland Airport to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Portland to San Diego?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Portland to San Diego is Boeing 737-800 Passenger/BBJ2 (winglets) (48.16% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (16.55%), Boeing 737-900 Passenger/BBJ3 (winglets) (14.67%), and Boeing 737-900 (6.62%).
What is the most popular airline from Portland to San Diego?
Based on momondo bookings for flights between Portland and San Diego, the leading airline is Alaska Airlines, making up 67% of the total bookings. Other popular airlines include Spirit Airlines with 23%, Frontier with 5%, and Delta with 2%.
Best airlines flying from Portland to San Diego
Compare and see reviews for airlines that fly from Portland to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $79 | Free Cancellation | Rating 6.3 8,013 reviews | |||
| PriceFrom $80 | Free Cancellation | Rating 6.0 3,355 reviews | |||
| PriceFrom $154 | Free Cancellation | Rating 8.0 9,697 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 8,219 reviews | |||
| PriceFrom $227 | Free Cancellation | Rating 8.1 4,411 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 7.4 8,765 reviews |
Southwest Flights From Portland to San Diego
Southwest flight deals from Portland to San Diego start from $227 round-trip. Over the 4 Southwest flights for this route in a normal week, average airfare is usually $387 round-trip - but some users have found much cheaper deals with momondo.
Alaska Airlines Flights From Portland to San Diego
Alaska Airlines (8.0/10 from 9,692 reviews) operates around 19 flights from Portland to San Diego in any given week. The average Alaska Airlines airfare for this route is around $295, with deals from around $154 rare but found on momondo. Referenced prices are for round-trip Portland to San Diego flight searches in the last 72 hours.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Portland to San Diego?
It is quick and easy to find Portland to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.
Can I find flights from Portland to San Diego with flexible booking policies on momondo?
Flights from Portland to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Portland to San Diego?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to San Diego.
I’m not ready to book a flight from Portland to San Diego right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Portland to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.