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Cheap flights from Portland to San Diego from $77

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 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Multiple Airlines Logo
7:15 am - 11:09 amPDX-SAN
27h 54m1 stop
Multiple Airlines Logo
8:33 pm - 11:16 pmSAN-PDX
2h 43mnonstop
$178Multiple Airlines
Find Deal
Sat, Oct 4 - Mon, Oct 6
Multiple Airlines Logo
12:43 pm - 8:08 pmPDX-SAN
7h 25m1 stop
Multiple Airlines Logo
8:33 pm - 11:16 pmSAN-PDX
2h 43mnonstop
$179Multiple Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
Alaska Airlines Logo
9:30 pm - 11:59 pmPDX-SAN
2h 29mnonstop
Alaska Airlines Logo
12:18 pm - 8:50 pmSAN-PDX
8h 32m1 stop
$180Alaska Airlines
Find Deal
Fri, Oct 17 - Tue, Oct 21
Alaska Airlines Logo
7:00 am - 9:32 amPDX-SAN
2h 32mnonstop
Alaska Airlines Logo
11:43 am - 4:50 pmSAN-PDX
5h 07m1 stop
$181Alaska Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 21
Multiple Airlines Logo
12:43 pm - 11:50 pmPDX-SAN
11h 07m1 stop
Multiple Airlines Logo
8:33 pm - 11:16 pmSAN-PDX
2h 43mnonstop
$182Multiple Airlines
Find Deal
Tue, Oct 14 - Thu, Oct 16
Frontier Logo
12:44 pm - 8:08 pmPDX-SAN
7h 24m1 stop
Frontier Logo
10:52 am - 8:47 pmSAN-PDX
9h 55m1 stop
$183Frontier
Find Deal
Fri, Oct 10 - Mon, Oct 13
Frontier Logo
12:43 pm - 11:50 pmPDX-SAN
11h 07m1 stop
Frontier Logo
10:52 am - 8:47 pmSAN-PDX
9h 55m1 stop
$184Frontier
Find Deal
Thu, Oct 9 - Mon, Oct 13
Southwest Logo
5:30 am - 10:15 amPDX-SAN
4h 45m1 stop
Southwest Logo
7:00 am - 12:05 pmSAN-PDX
5h 05m1 stop
$208Southwest
Find Deal
Thu, Oct 30 - Sun, Nov 2
Hawaiian Airlines Logo
5:38 pm - 8:14 pmPDX-SAN
2h 36mnonstop
Hawaiian Airlines Logo
9:15 am - 4:54 pmSAN-PDX
7h 39m1 stop
$210Hawaiian Airlines
Find Deal
Wed, Oct 15 - Sat, Oct 18
Southwest Logo
5:30 pm - 11:25 pmPDX-SAN
5h 55m1 stop
Southwest Logo
7:30 pm - 11:35 pmSAN-PDX
4h 05m1 stop
$228Southwest
Find Deal
Tue, Nov 25 - Fri, Nov 28

Frontier flights from Portland to San Diego

Our best Frontier deals on Portland to San Diego flight tickets
Frontier
Sep 22
PDX11:23 amPortland
11h 54m
1 stop
SAN11:17 pmSan Diego
Sep 26
SAN6:35 amSan Diego
17h 37m
1 stop
PDX12:12 amPortland
$179
Find similar
Frontier
Oct 10
PDX12:44 pmPortland
7h 24m
1 stop
SAN8:08 pmSan Diego
Oct 13
SAN10:52 amSan Diego
9h 55m
1 stop
PDX8:47 pmPortland
$183
Find similar
Frontier
Oct 9
PDX12:43 pmPortland
11h 07m
1 stop
SAN11:50 pmSan Diego
Oct 13
SAN10:52 amSan Diego
9h 55m
1 stop
PDX8:47 pmPortland
$184
Find similar

Alaska Airlines flights from Portland to San Diego

Our best Alaska Airlines deals on Portland to San Diego flight tickets
Alaska Airlines
Oct 17
PDX9:30 pmPortland
2h 29m
SAN11:59 pmSan Diego
Oct 21
SAN12:18 pmSan Diego
8h 32m
1 stop
PDX8:50 pmPortland
$180
Find similar
Alaska Airlines
Oct 21
PDX7:00 amPortland
2h 32m
SAN9:32 amSan Diego
Oct 21
SAN11:43 amSan Diego
5h 07m
1 stop
PDX4:50 pmPortland
$181
Find similar
Alaska Airlines
Nov 12
PDX7:02 amPortland
12h 06m
1 stop
SAN7:08 pmSan Diego
Nov 24
SAN9:10 pmSan Diego
2h 49m
PDX11:59 pmPortland
$190
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Portland to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 10/4

7:15 am-11:09 am

1 stop27h 54m

San Diego

Mon 10/6

8:33 pm-11:16 pm

Nonstop2h 43m

$178

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Fri 10/17

12:43 pm-8:08 pm

1 stop7h 25m

San Diego

Mon 10/20

8:33 pm-11:16 pm

Nonstop2h 43m

$179

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Fri 10/17

9:30 pm-11:59 pm

Nonstop2h 29m

San Diego

Tue 10/21

12:18 pm-8:50 pm

1 stop8h 32m

$180

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 10/21

7:00 am-9:32 am

Nonstop2h 32m

San Diego

Tue 10/21

11:43 am-4:50 pm

1 stop5h 07m

$181

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 10/14

12:43 pm-11:50 pm

1 stop11h 07m

San Diego

Thu 10/16

8:33 pm-11:16 pm

Nonstop2h 43m

$182

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Fri 10/10

12:44 pm-8:08 pm

1 stop7h 24m

San Diego

Mon 10/13

10:52 am-8:47 pm

1 stop9h 55m

$183

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 10/9

12:43 pm-11:50 pm

1 stop11h 07m

San Diego

Mon 10/13

10:52 am-8:47 pm

1 stop9h 55m

$184

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 10/30

5:30 am-10:15 am

1 stop4h 45m

San Diego

Sun 11/2

7:00 am-12:05 pm

1 stop5h 05m

$208

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Wed 10/15

5:38 pm-8:14 pm

Nonstop2h 36m

San Diego

Sat 10/18

9:15 am-4:54 pm

1 stop7h 39m

$210

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 11/25

5:30 pm-11:25 pm

1 stop5h 55m

San Diego

Fri 11/28

7:30 pm-11:35 pm

1 stop4h 05m

$228

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 February, then departing from Portland during the month January is also very affordable. Most momondo users find prices during this month for around $221.

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 Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $270. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $308. 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 $264. Flights in the morning are often more expensive with an average ticket price of $314.

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 $271 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 $229 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.

Can stopping save me money on Portland to San Diego flights?

No. A direct flight is the cheapest option for a flight between Portland to San Diego.

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

As of September 2025, prices for Portland to San Diego flights are approximately 50% more expensive 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

$138

Fastest flight time

2h 20m

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 $138. The best round-trip flight deal from Portland to San Diego found on momondo in the last 72 hours is $197.
The fastest flight from Portland to San Diego takes 2h 20m
Direct flights go from Portland to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

  • 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 29m.

  • 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 $69Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
FrontierPriceFrom $87Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
DeltaPriceFrom $156Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Alaska AirlinesPriceFrom $156Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $177Free CancellationRating
7.8
2,729 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $190Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Portland to San Diego

    Alaska Airlines flight deals from Portland to San Diego start from $156 round-trip. Over the 23 Alaska Airlines flights for this route in a normal week, average airfare is usually $290 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From Portland to San Diego

    Southwest (8.0/10 from 4,242 reviews) operates around 11 flights from Portland to San Diego in any given week. The average Southwest airfare for this route is around $383, with deals from around $190 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
Chula Vista
El Cajon
Julian
La Mesa
National City
Poway
Imperial Beach
San Ysidro
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.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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