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Cheap flights from Portland to San Diego from $101

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 1/25. 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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0 bags

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Find the cheapest flights from Portland to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
1:36 pm - 9:14 pm
PDX
-
SAN
7h 38m2 stops
Alaska Airlines Logo
10:15 am - 4:35 pm
SAN
-
PDX
6h 20m1 stop
$159Alaska Airlines
Tue, Mar 3 - Wed, Mar 11
Alaska Airlines Logo
7:20 am - 11:49 am
PDX
-
SAN
4h 29m1 stop
Alaska Airlines Logo
10:30 am - 4:38 pm
SAN
-
PDX
6h 08m1 stop
$160Alaska Airlines
Sat, Feb 7 - Tue, Feb 10
Frontier Logo
12:13 pm - 11:31 pm
PDX
-
SAN
35h 18m2 stops
Frontier Logo
10:51 am - 11:18 am
SAN
-
PDX
24h 27m1 stop
$161Frontier
Mon, Jan 26 - Sun, Feb 1
Alaska Airlines Logo
9:35 pm - 7:17 am
PDX
-
SAN
9h 42m1 stop
Alaska Airlines Logo
6:03 pm - 8:50 pm
SAN
-
PDX
2h 47mnonstop
$162Alaska Airlines
Mon, Mar 2 - Tue, Mar 3
Delta Logo
5:10 pm - 11:04 pm
PDX
-
SAN
5h 54m1 stop
Delta Logo
7:05 pm - 11:54 pm
SAN
-
PDX
4h 49m1 stop
$163Delta
Thu, Mar 5 - Thu, Mar 12
Alaska Airlines Logo
10:34 am - 1:01 pm
PDX
-
SAN
2h 27mnonstop
Alaska Airlines Logo
9:59 pm - 9:29 am
SAN
-
PDX
11h 30m1 stop
$164Alaska Airlines
Sat, Jan 31 - Sun, Feb 1
Alaska Airlines Logo
2:40 pm - 7:15 pm
PDX
-
SAN
4h 35m1 stop
Alaska Airlines Logo
10:30 am - 5:59 pm
SAN
-
PDX
7h 29m2 stops
$166Alaska Airlines
Sat, Jan 31 - Tue, Feb 3
Alaska Airlines Logo
10:34 am - 1:01 pm
PDX
-
SAN
2h 27mnonstop
Alaska Airlines Logo
6:15 am - 12:38 pm
SAN
-
PDX
6h 23m1 stop
$167Alaska Airlines
Tue, Jan 27 - Sat, Jan 31
Alaska Airlines Logo
2:35 pm - 4:47 pm
PDX
-
SAN
26h 12m1 stop
Alaska Airlines Logo
8:04 am - 8:45 pm
SAN
-
PDX
12h 41m1 stop
$168Alaska Airlines
Fri, Feb 20 - Tue, Feb 24
Alaska Airlines Logo
5:40 pm - 8:11 pm
PDX
-
SAN
2h 31mnonstop
Alaska Airlines Logo
12:31 pm - 4:38 pm
SAN
-
PDX
4h 07m1 stop
$169Alaska Airlines
Thu, Jan 29 - Tue, Feb 3

United Airlines flights from Portland to San Diego

Our best United Airlines deals on Portland to San Diego flight tickets
United Airlines
Mar 7
PDX8:30 amPortland
6h 30m
1 stop
SAN3:00 pmSan Diego
Mar 11
SAN11:03 amSan Diego
10h 07m
2 stops
PDX9:10 pmPortland
$182
United Airlines
Jan 30
PDX3:45 pmPortland
6h 52m
1 stop
SAN10:37 pmSan Diego
Feb 3
SAN11:10 amSan Diego
7h 00m
1 stop
PDX6:10 pmPortland
$186
United Airlines
Feb 4
PDX1:35 pmPortland
6h 19m
2 stops
SAN7:54 pmSan Diego
Feb 11
SAN11:08 amSan Diego
7h 48m
2 stops
PDX6:56 pmPortland
$188

Delta flights from Portland to San Diego

Our best Delta deals on Portland to San Diego flight tickets
Delta
Mar 5
PDX5:30 amPortland
4h 34m
1 stop
SAN10:04 amSan Diego
Mar 9
SAN7:05 pmSan Diego
4h 49m
1 stop
PDX11:54 pmPortland
$163
Delta
Mar 4
PDX1:02 pmPortland
5h 43m
1 stop
SAN6:45 pmSan Diego
Mar 6
SAN6:45 pmSan Diego
13h 46m
1 stop
PDX8:31 amPortland
$174
Delta
Feb 5
PDX1:02 pmPortland
6h 06m
1 stop
SAN7:08 pmSan Diego
Feb 12
SAN1:40 pmSan Diego
7h 15m
1 stop
PDX8:55 pmPortland
$190

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 January 8, 2026.
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

Tue 3/3

1:36 pm-9:14 pm

2 stops7h 38m

San Diego

Wed 3/11

10:15 am-4:35 pm

1 stop6h 20m

$159

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 2/7

7:20 am-11:49 am

1 stop4h 29m

San Diego

Tue 2/10

10:30 am-4:38 pm

1 stop6h 08m

$160

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Mon 1/26

12:13 pm-11:31 pm

2 stops35h 18m

San Diego

Sun 2/1

10:51 am-11:18 am

1 stop24h 27m

$161

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Mon 3/2

9:35 pm-7:17 am

1 stop9h 42m

San Diego

Tue 3/3

6:03 pm-8:50 pm

Nonstop2h 47m

$162

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 3/5

5:10 pm-11:04 pm

1 stop5h 54m

San Diego

Thu 3/12

7:05 pm-11:54 pm

1 stop4h 49m

$163

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 1/31

10:34 am-1:01 pm

Nonstop2h 27m

San Diego

Sun 2/1

9:59 pm-9:29 am

1 stop11h 30m

$164

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 1/31

2:40 pm-7:15 pm

1 stop4h 35m

San Diego

Tue 2/3

10:30 am-5:59 pm

2 stops7h 29m

$166

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 1/27

10:34 am-1:01 pm

Nonstop2h 27m

San Diego

Sat 1/31

6:15 am-12:38 pm

1 stop6h 23m

$167

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Fri 2/20

2:35 pm-4:47 pm

1 stop26h 12m

San Diego

Tue 2/24

8:04 am-8:45 pm

1 stop12h 41m

$168

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 1/29

5:40 pm-8:11 pm

Nonstop2h 31m

San Diego

Tue 2/3

12:31 pm-4:38 pm

1 stop4h 07m

$169

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 $255.

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 $271. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $327. 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 $271. Flights in the morning are often more expensive with an average ticket price of $320.

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 $280 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 $239 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?

You could potentially save up to 11% on your flight if you consider stops on a Portland to San Diego flight.

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

As of January 2026, prices for Portland to San Diego flights are approximately 28% 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

$143

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 $143. The best round-trip flight deal from Portland to San Diego found on momondo in the last 72 hours is $187.
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 in San Diego. From Portland there are direct flights to 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 20m.

  • 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
FrontierPriceFrom $87Free CancellationRating
5.7
3,061 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $90Free CancellationRating
6.3
8,289 reviews
Search Spirit Airlines flights
DeltaPriceFrom $152Free CancellationRating
7.9
8,032 reviews
Search Delta flights
SouthwestPriceFrom $158Free CancellationRating
8.0
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $166Free CancellationRating
7.4
9,143 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $167Free CancellationRating
8.0
11,671 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $177Free CancellationRating
7.8
2,824 reviews
Search Hawaiian Airlines flights

  • Alaska Airlines Flights From Portland to San Diego

    Alaska Airlines flight deals from Portland to San Diego start from $167 round-trip. Over the 7 Alaska Airlines flights for this route in a normal week, average airfare is usually $294 round-trip - but some users have found much cheaper deals with momondo.

  • Hawaiian Airlines Flights From Portland to San Diego

    Hawaiian Airlines (7.8/10 from 2,824 reviews) operates around 12 flights from Portland to San Diego in any given week. The average Hawaiian Airlines airfare for this route is around $297, with deals from around $177 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
Poway
National City
Imperial Beach
Borrego Springs
La Mesa
San Ysidro
Alpine
Lemon Grove
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

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