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$77+ Cheap flights from Portland to San Diego (PDX - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAN
Oct 10 — Oct 171
Fri 10/10
Fri 10/17
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to San Diego are usually found in September or February, booked 88 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 10, 2025.

Round-trip from

$178
(Trip.com)

One-way from

$77
(Frontier)

Popular in

March

Cheapest in

September

Average price

$197

Good round-trip deal

$204 or less

Good one-way deal

$108 or less
From Portland to San Diego
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One-way flight from Portland to San Diego
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Highest demand for flights based on searches. 5% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Portland to San Diego.
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Price to beat on a one-way flight from Portland to San Diego.
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Find flight deals from Portland to San Diego

Cheapest flights from Portland to San Diego
Explore the most affordable flight options available from Portland to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2025.

This Trip.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:30 pmPDX - SAN
Nonstop2h 36mMultiple Airlines
Fri 10/36:35 amSAN - PDX
1 stop17h 37mMultiple Airlines
Deal found 9/10$178
This Orbitz deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:44 pmPDX - SAN
1 stop7h 24mMultiple Airlines
Fri 10/178:33 pmSAN - PDX
Nonstop2h 43mMultiple Airlines
Deal found 9/9$179
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:14 amPDX - SAN
1 stop4h 49mFrontier
Mon 10/612:43 pmSAN - PDX
2 stops23h 05mFrontier
Deal found 9/10$180
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:00 amPDX - SAN
1 stop7h 17mAlaska Airlines
Tue 10/216:09 pmSAN - PDX
Nonstop2h 41mAlaska Airlines
Deal found 9/9$181
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2812:07 pmPDX - SAN
1 stop19h 22mMultiple Airlines
Fri 10/36:35 amSAN - PDX
1 stop17h 37mMultiple Airlines
Deal found 9/9$182
This Priceline deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:09 amPDX - SAN
1 stop4h 54mFrontier
Mon 10/1310:52 amSAN - PDX
1 stop9h 55mFrontier
Deal found 9/8$183
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:44 pmPDX - SAN
1 stop7h 24mFrontier
Mon 10/1310:52 amSAN - PDX
1 stop9h 55mFrontier
Deal found 9/10$184
This Vliegwinkel deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/42:30 pmPDX - SAN
1 stop5h 16mMultiple Airlines
Mon 10/68:33 pmSAN - PDX
Nonstop2h 43mMultiple Airlines
Deal found 9/10$185
This Expedia deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:52 pmPDX - SAN
1 stop10h 58mMultiple Airlines
Mon 11/177:00 amSAN - PDX
Nonstop2h 48mMultiple Airlines
Deal found 9/10$186
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:25 pmPDX - SAN
1 stop5h 06mDelta
Tue 10/213:15 pmSAN - PDX
1 stop7h 25mDelta
Deal found 9/8$187
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:54 amPDX - SAN
1 stop7h 21mAlaska Airlines
Fri 1/29:18 pmSAN - PDX
Nonstop2h 50mAlaska Airlines
Deal found 9/10$188
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2312:07 pmPDX - SAN
1 stop11h 27mSpirit Airlines
Thu 9/256:15 amSAN - PDX
1 stop4h 56mSpirit Airlines
Deal found 9/10$189

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 10, 2025.
Use the filters below to find and compare flights from Portland to San Diego that are best for you.

Fly from

Portland

Fly to

San Diego

Route

Depart

Return

Price

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Mon 10/20

7:35 pm-12:15 am

1 stop4h 40m

San Diego

Fri 11/14

5:55 pm-10:51 pm

1 stop4h 56m

$178

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 10/21

7:00 am-2:17 pm

1 stop7h 17m

San Diego

Tue 10/21

6:09 pm-8:50 pm

Nonstop2h 41m

$181

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 11/13

10:35 am-3:24 pm

1 stop4h 49m

San Diego

Mon 11/17

6:15 am-1:18 pm

1 stop7h 03m

$181

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Wed 11/5

6:00 am-10:41 am

1 stop4h 41m

San Diego

Sun 11/9

11:20 am-5:52 pm

1 stop6h 32m

$181

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 11/8

9:30 pm-11:59 pm

Nonstop2h 29m

San Diego

Sun 11/16

8:45 pm-11:33 pm

Nonstop2h 48m

$187

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 10/2

9:30 pm-12:06 am

Nonstop2h 36m

San Diego

Tue 10/7

7:00 am-9:44 am

Nonstop2h 44m

$187

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 12/6

10:38 am-2:25 pm

1 stop3h 47m

San Diego

Wed 12/10

1:55 pm-4:43 pm

Nonstop2h 48m

$187

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Mon 10/20

5:30 am-10:06 am

1 stop4h 36m

San Diego

Mon 10/20

8:08 pm-12:28 am

1 stop4h 20m

$187

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 10/25

4:36 pm-11:05 pm

1 stop6h 29m

San Diego

Sat 11/1

8:45 pm-11:33 pm

Nonstop2h 48m

$187

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 11/6

9:30 pm-11:59 pm

Nonstop2h 29m

San Diego

Tue 11/11

7:00 am-9:48 am

Nonstop2h 48m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 22 results
1
2
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The best insider tips for Portland to San Diego flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Portland to San Diego trip
Airlines
Alaska Airlines

Alaska's Wi-Fi offers a flat fee, great for getting work done on flights.


Alaska's Premium Class offers extra legroom and free cocktails, enhancing comfort.

Read more about Alaska Airlinesby Robert Schrader
Spirit Airlines

Spirit's Big Front Seats offer 11 extra inches of legroom, ideal for short flights.


Use Spirit's Bag-O-Tron tool to find the best baggage prices and save money.

Read more about Spirit Airlinesby Daniel Scheffler
Airports
PDX

Security wait times at PDX can reach over 30 minutes during rush hours. Consider Express Lanes if eligible for faster processing.

Read more about PDXby Brandon Schultz
SAN

For a budget-friendly option, take the free San Diego Flyer shuttle from SAN to the Old Town Transit Center.

Read more about SANby Blane Bachelor
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Brandon Schultz

Brandon Schultz

Expert on PDX

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Portland to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to San Diego

How far ahead should I book a flight from Portland to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Portland to San Diego. Price data was last updated on August 29, 2025.

Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Portland to San Diego?

Currently, August is the cheapest month in which you can book a flight from Portland to San Diego (average of $286). Flying from Portland to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to SAN?

Find hourly flight availability from Portland to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 10, 2025.

When flying from Portland to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 15% versus a flight in the morning.

What is the cheapest day to fly from Portland to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Portland to San Diego. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Portland to San Diego flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated September 10, 2025.
Read through reviews of airlines operating flights from Portland to San Diego, such as Alaska Airlines, Southwest, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,249 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,024 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,181 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Portland to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Portland to San Diego?

    San Diego is the airport most travelers will use when flying to San Diego from Portland. Booking flights from Portland (PDX) to San Diego (SAN) should be relatively easy as there are 9 daily flights to San Diego from 7 different airlines. 2h 28m is how long a flight from Portland to San Diego will take if you book a nonstop flight.

  • How popular is this Portland to San Diego flight route?

    This flight path from Portland to San Diego was viewed by 68 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Portland to San Diego?

    There are many flights that can get you from Portland to San Diego in 4h 40m. Fly via United Airlines, Alaska Airlines, or Delta to get the fastest option. Portland and San Diego are separated by a distance of 933 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland to San Diego round-trip?

    Cheapflights users have booked flights from Portland to San Diego round-trip from $69. Other airlines that can offer you cheap pricing are Frontier, from $98, and Delta, from $156. You may be able to fly from Portland to San Diego for 74% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Portland to San Diego one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $84. However, be on the lookout for offers from Southwest and Alaska Airlines, as they are both options that can get you from Portland to San Diego for a low price.

  • What are the most reliable airlines from Portland to San Diego?

    Before booking your flight to San Diego from Portland, check out the most reliable airlines to get you to your destination on time: Horizon Air (100%), Japan Airlines (89%), Icelandair( 87%).

  • What are the cheapest flights from Portland to San Diego?

    Looking for the cheapest flight from Portland to San Diego? While on average our users pay $268, our data indicates the cheapest price to be $82. The most popular route (Portland - San Diego), is priced around $122.

  • Can I find deals for flights from Portland to San Diego that include hotel bookings?

    Yes. In addition to deals on Portland to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to San Diego.

  • Can I find deals for business class flights from Portland to San Diego?

    Yes. Cheapflights offers flight deals from Portland to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Portland to San Diego (average of $286). Flying from Portland to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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Alternative routes for Portland to San Diego

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Top 7 airlines flying from Portland to San Diego

Discover the top 7 airlines that operate flights from Portland to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$69Average$157FlexibilityNo cancel feeOn-time65%
FrontierCheapest$98Average$127FlexibilityNo cancel feeOn-time62%
DeltaCheapest$156Average$282FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$156Average$291FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$177Average$297FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$190Average$383FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$228Average$376FlexibilityNo cancel feeOn-time69%

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