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Cheap flights from Portland to San Diego from $42

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 8/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to San Diego

Cheap round-trip flights

Spirit Airlines Logo
3:10 pm - 11:06 pmPDX-SAN
7h 56m1 stop
Spirit Airlines Logo
6:15 am - 2:15 pmSAN-PDX
8h 00m1 stop
$114Spirit Airlines
Find Deal
Tue, Aug 5 - Wed, Aug 6
Spirit Airlines Logo
3:10 pm - 8:45 pmPDX-SAN
5h 35m1 stop
Spirit Airlines Logo
6:15 am - 2:15 pmSAN-PDX
8h 00m1 stop
$116Spirit Airlines
Find Deal
Thu, Jul 31 - Tue, Aug 5
Spirit Airlines Logo
10:23 am - 11:06 pmPDX-SAN
12h 43m1 stop
Spirit Airlines Logo
6:15 am - 2:15 pmSAN-PDX
8h 00m1 stop
$121Spirit Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12
Spirit Airlines Logo
3:10 pm - 11:06 pmPDX-SAN
7h 56m1 stop
Spirit Airlines Logo
9:40 pm - 9:18 amSAN-PDX
11h 38m1 stop
$123Spirit Airlines
Find Deal
Tue, Aug 5 - Sun, Aug 10
Spirit Airlines Logo
3:10 pm - 11:06 pmPDX-SAN
7h 56m1 stop
Spirit Airlines Logo
1:17 pm - 6:57 pmSAN-PDX
5h 40m1 stop
$124Spirit Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 19
Spirit Airlines Logo
10:23 am - 11:06 pmPDX-SAN
12h 43m1 stop
Spirit Airlines Logo
6:15 am - 2:15 pmSAN-PDX
8h 00m1 stop
$125Spirit Airlines
Find Deal
Tue, Aug 5 - Wed, Aug 6
Spirit Airlines Logo
10:23 am - 5:55 pmPDX-SAN
7h 32m1 stop
Spirit Airlines Logo
1:17 pm - 6:57 pmSAN-PDX
5h 40m1 stop
$126Spirit Airlines
Find Deal
Wed, Aug 6 - Wed, Aug 13
Spirit Airlines Logo
3:10 pm - 11:06 pmPDX-SAN
7h 56m1 stop
Spirit Airlines Logo
6:15 am - 6:57 pmSAN-PDX
12h 42m1 stop
$127Spirit Airlines
Find Deal
Tue, Aug 5 - Fri, Aug 15
Logo
10:23 am - 8:45 pmPDX-SAN
10h 22m1 stop
Logo
6:15 am - 8:50 amSAN-PDX
2h 35mnonstop
$131
Find Deal
Thu, Jul 31 - Mon, Aug 4
Logo
10:23 am - 5:55 pmPDX-SAN
7h 32m1 stop
Logo
6:15 am - 8:50 amSAN-PDX
2h 35mnonstop
$133
Find Deal
Fri, Aug 1 - Mon, Aug 4

Spirit Airlines flights from Portland to San Diego

Our best Spirit Airlines deals on Portland to San Diego flight tickets
Spirit Airlines
Aug 5
PDX3:10 pmPortland
7h 56m
1 stop
SAN11:06 pmSan Diego
Aug 6
SAN6:15 amSan Diego
8h 00m
1 stop
PDX2:15 pmPortland
$114
Find similar
Spirit Airlines
Jul 31
PDX3:10 pmPortland
5h 35m
1 stop
SAN8:45 pmSan Diego
Aug 5
SAN6:15 amSan Diego
8h 00m
1 stop
PDX2:15 pmPortland
$116
Find similar
Spirit Airlines
Aug 5
PDX10:23 amPortland
12h 43m
1 stop
SAN11:06 pmSan Diego
Aug 12
SAN6:15 amSan Diego
8h 00m
1 stop
PDX2:15 pmPortland
$121
Find similar

Frontier flights from Portland to San Diego

Our best Frontier deals on Portland to San Diego flight tickets
Frontier
Jul 19
PDX6:35 amPortland
16h 27m
1 stop
SAN11:02 pmSan Diego
Jul 22
SAN6:25 amSan Diego
16h 59m
1 stop
PDX11:24 pmPortland
$177
Find similar
Frontier
Jul 21
PDX5:50 pmPortland
6h 02m
1 stop
SAN11:52 pmSan Diego
Jul 28
SAN1:12 pmSan Diego
5h 24m
1 stop
PDX6:36 pmPortland
$188
Find similar
Frontier
Jul 20
PDX6:16 pmPortland
23h 54m
1 stop
SAN6:10 pmSan Diego
Jul 22
SAN6:25 amSan Diego
16h 59m
1 stop
PDX11:24 pmPortland
$213
Find similar

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 $216.

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 $260. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $297. 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 $250. 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 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $259 when searching 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 $211 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.

How have Portland to San Diego flight prices changed over time?

As of July 2025, prices for Portland to San Diego flights are approximately 42% cheaper when compared to flights at the same time last year.

When to book flights from Portland to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$42

Fastest flight time

2h 28m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Portland in the past 72 hours is $42. The best round-trip flight deal from Portland to San Diego found on momondo in the last 72 hours is $114.
The fastest flight from Portland to San Diego takes 2h 28m
Direct flights go from Portland to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
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  • 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 5h 35m.

  • 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?

  • 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?

  • What is the most popular airline from Portland to San Diego?

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
Spirit AirlinesPriceFrom $71Free CancellationRating
6.3
8,047 reviews
Search Spirit Airlines flights
FrontierPriceFrom $99Free CancellationRating
5.9
3,260 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $154Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $158Free CancellationRating
8.0
7,953 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $177Free CancellationRating
7.8
2,571 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $206Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
8,856 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Portland to San Diego

    Alaska Airlines flight deals from Portland to San Diego start from $154 round-trip. Over the 28 Alaska Airlines flights for this route in a normal week, average airfare is usually $284 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From Portland to San Diego

    Southwest (8.0/10 from 4,243 reviews) operates around 12 flights from Portland to San Diego in any given week. The average Southwest airfare for this route is around $384, with deals from around $206 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 locations
Coronado
El Cajon
Chula Vista
Julian
National City
La Mesa
Imperial Beach
San Ysidro
Poway
Borrego Springs
Lemon Grove
Alpine
Santee

Why 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.

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