How popular is this Portland to San Diego flight route?

This flight path from Portland to San Diego was viewed by 99 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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 $156. Other airlines that can offer you cheap pricing are Alaska Airlines, from $177, and Frontier, from $181. You may be able to fly from Portland to San Diego for 38% 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 $85. However, be on the lookout for offers from Frontier and Hawaiian Airlines, as they are both options that can get you from Portland to San Diego for a low price.

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 $396, our data indicates the cheapest price to be $88. The most popular route (Portland - San Diego), is priced around $93.

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%), Alaska Airlines (82%), Hawaiian Airlines( 80%).

What are the most popular airlines that fly from Portland to San Diego?

Consider Alaska Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Portland to San Diego.

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

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 13% on your flight compared to booking on days when demand is much higher.

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

To save on the cost of your flight from Portland to San Diego, book at least 29 days before your planned departure. Booking around this time can save you about 66% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $196 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $376.

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

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, September can be a great choice for travel to San Diego. Flights to San Diego from Portland in September are about $255 on average during September, but can be found for as low as $81.

Most accurate provider : When it comes to deals on Portland-San Diego flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Portland-San Diego flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Portland-San Diego flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Portland-San Diego flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 8 different airlines. 2h 25m is how long a flight from Portland to San Diego will take if you book a nonstop flight.

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.

$85+ Flights from Portland to San Diego - Compare & Save Big

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Find cheap flights from Portland to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Portland to San Diego are usually found in September or August, booked 63 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Portland to San Diego

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$156 (Kiwi.com)
One-way from	$85 (FlightHub)
Popular in	March
Cheapest in	September
Average price	$297
Good round-trip deal	$243 or less
Good one-way deal	$133 or less

Provider with most accurate pricing for Portland-San Diego flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-San Diego flights.

Search Deals

From Portland to San Diego

Search Deals

One-way flight from Portland to San Diego

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($25 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Portland to San Diego.

Search Deals

Price to beat on a one-way flight from Portland to San Diego.

Search Deals

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 April 29, 2025.

Thu 5/221:37 pmPDX - SAN

1 stop4h 26mSpirit Airlines

Fri 5/236:15 amSAN - PDX

1 stop6h 27mSpirit Airlines

Deal found 4/28

$156

Wed 5/285:40 pmPDX - SAN

1 stop6h 16mMultiple Airlines

Fri 6/612:17 pmSAN - PDX

1 stop5h 43mMultiple Airlines

Deal found 4/28

$161

Tue 5/277:00 amPDX - SAN

Nonstop2h 32mAlaska Airlines

Wed 6/46:11 pmSAN - PDX

Nonstop2h 39mAlaska Airlines

Deal found 4/28

$177

Sat 5/106:20 amPDX - SAN

1 stop10h 50mFrontier

Thu 5/158:54 pmSAN - PDX

1 stop27h 44mFrontier

Deal found 4/28

$181

Thu 6/59:30 pmPDX - SAN

Nonstop2h 29mHawaiian Airlines

Sun 6/87:00 amSAN - PDX

Nonstop2h 42mHawaiian Airlines

Deal found 4/28

$194

Tue 5/271:21 pmPDX - SAN

1 stop4h 59mDelta

Tue 6/36:15 amSAN - PDX

1 stop5h 49mDelta

Deal found 4/28

$197

Wed 8/136:40 amPDX - SAN

1 stop4h 55mSouthwest

Mon 8/181:00 pmSAN - PDX

1 stop5h 25mSouthwest

Deal found 4/28

$251

Best flights from Portland to San Diego
Discover carefully curated flight deals from Portland to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.

Thu 5/221:37 pmPDX - SAN

1 stop4h 26mSpirit Airlines

Fri 5/236:15 amSAN - PDX

1 stop6h 27mSpirit Airlines

Deal found 4/28

$156

Wed 5/285:40 pmPDX - SAN

1 stop6h 16mMultiple Airlines

Fri 6/612:17 pmSAN - PDX

1 stop5h 43mMultiple Airlines

Deal found 4/28

$161

Tue 5/277:00 amPDX - SAN

Nonstop2h 32mAlaska Airlines

Wed 6/46:11 pmSAN - PDX

Nonstop2h 39mAlaska Airlines

Deal found 4/28

$177

Sat 5/106:20 amPDX - SAN

1 stop10h 50mFrontier

Thu 5/158:54 pmSAN - PDX

1 stop27h 44mFrontier

Deal found 4/28

$181

Thu 6/59:30 pmPDX - SAN

Nonstop2h 29mHawaiian Airlines

Sun 6/87:00 amSAN - PDX

Nonstop2h 42mHawaiian Airlines

Deal found 4/28

$194

Tue 5/271:21 pmPDX - SAN

1 stop4h 59mDelta

Tue 6/36:15 amSAN - PDX

1 stop5h 49mDelta

Deal found 4/28

$197

Sat 5/179:10 amPDX - SAN

2 stops5h 55mSouthwest

Wed 5/2112:00 pmSAN - PDX

1 stop4h 50mSouthwest

Deal found 4/27

$292

Thu 5/299:54 amPDX - SAN

2 stops9h 53mUnited Airlines

Tue 6/37:55 amSAN - PDX

1 stop4h 27mUnited Airlines

Deal found 4/28

$345

Last-minute flights from Portland to San Diego
Discover last-minute flight deals from Portland to San Diego. Data last updated April 29, 2025 and is based on user searches.

Sat 5/36:20 amPDX - SAN

1 stop10h 50mMultiple Airlines

Mon 5/196:15 amSAN - PDX

1 stop6h 27mMultiple Airlines

Deal found 4/28

$172

Sat 5/32:25 pmPDX - SAN

2 stops7h 30mSouthwest

Sun 5/410:25 amSAN - PDX

1 stop4h 25mSouthwest

Deal found 4/28

$628

Mon 5/511:02 amPDX - SAN

1 stop20h 32mSpirit Airlines

Mon 6/21:06 pmSAN - PDX

2 stops27h 39mSpirit Airlines

Deal found 4/28

$171

Mon 5/57:00 amPDX - SAN

Nonstop2h 28mAlaska Airlines

Mon 6/28:59 pmSAN - PDX

Nonstop2h 39mAlaska Airlines

Deal found 4/28

$372

Tue 5/66:20 amPDX - SAN

1 stop6h 03mFrontier

Sat 5/176:10 pmSAN - PDX

1 stop6h 28mFrontier

Deal found 4/28

$196

Tue 5/67:54 amPDX - SAN

2 stops9h 57mUnited Airlines

Sat 5/177:40 pmSAN - PDX

1 stop4h 51mUnited Airlines

Deal found 4/28

$506

Thu 5/87:00 amPDX - SAN

Nonstop2h 28mHawaiian Airlines

Thu 5/82:15 pmSAN - PDX

Nonstop2h 41mHawaiian Airlines

Deal found 4/28

$502

Sat 5/106:20 amPDX - SAN

1 stop10h 50mFrontier

Thu 5/158:54 pmSAN - PDX

1 stop27h 44mFrontier

Deal found 4/28

$181

Sat 5/179:10 amPDX - SAN

2 stops5h 55mSouthwest

Wed 5/2112:00 pmSAN - PDX

1 stop4h 50mSouthwest

Deal found 4/27

$292

Thu 5/221:37 pmPDX - SAN

1 stop4h 26mSpirit Airlines

Fri 5/236:15 amSAN - PDX

1 stop6h 27mSpirit Airlines

Deal found 4/28

$156

Tue 5/2710:33 amPDX - SAN

Nonstop2h 31mAlaska Airlines

Tue 6/37:00 amSAN - PDX

Nonstop2h 42mAlaska Airlines

Deal found 4/28

$177

Tue 5/271:21 pmPDX - SAN

1 stop4h 59mDelta

Wed 6/45:02 pmSAN - PDX

1 stop6h 41mDelta

Deal found 4/28

$197

One-way flights from Portland to San Diego
Search for one-way flight options from Portland to San Diego. Find affordable one-way fares based on user searches. Data last updated April 29, 2025.

Sun 5/181:37 pmPDX - SAN

1 stop10h 19mSpirit Airlines

Deal found 4/28

$85

Tue 5/66:20 amPDX - SAN

1 stop6h 03mFrontier

Deal found 4/28

$88

Sun 5/187:00 amPDX - SAN

Nonstop2h 32mHawaiian Airlines

Deal found 4/27

$99

Sun 5/2510:41 amPDX - SAN

2 stops20h 32mMultiple Airlines

Deal found 4/27

$114

Mon 6/21:25 pmPDX - SAN

2 stops10h 13mAlaska Airlines

Deal found 4/28

$117

Tue 7/227:15 amPDX - SAN

1 stop7h 25mDelta

Deal found 4/28

$123

Sat 7/54:55 pmPDX - SAN

Nonstop2h 25mSouthwest

Deal found 4/28

$148

Thu 7/171:37 pmPDX - SAN

2 stops20h 35mUnited Airlines

Deal found 4/28

$223

Cheapflights Fare Finder

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

Thu 5/22

1:37 pm-6:03 pm

1 stop4h 26m

San Diego

Fri 5/23

6:15 am-12:42 pm

1 stop6h 27m

$156

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Wed 5/28

5:40 pm-11:56 pm

1 stop6h 16m

San Diego

Fri 6/6

12:17 pm-6:00 pm

1 stop5h 43m

$161

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 5/27

10:33 am-1:04 pm

Nonstop2h 31m

San Diego

Tue 6/3

7:00 am-9:42 am

Nonstop2h 42m

$177

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 5/10

6:20 am-5:10 pm

1 stop10h 50m

San Diego

Thu 5/15

8:54 pm-12:38 am

1 stop27h 44m

$181

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Wed 5/28

10:33 am-1:04 pm

Nonstop2h 31m

San Diego

Fri 6/6

4:00 pm-6:38 pm

Nonstop2h 38m

$187

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 5/27

1:21 pm-6:20 pm

1 stop4h 59m

San Diego

Wed 6/4

5:02 pm-11:43 pm

1 stop6h 41m

$197

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 5/17

9:10 am-3:05 pm

2 stops5h 55m

San Diego

Wed 5/21

12:00 pm-4:50 pm

1 stop4h 50m

$292

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 5/29

9:54 am-7:47 pm

2 stops9h 53m

San Diego

Tue 6/3

7:55 am-12:22 pm

1 stop4h 27m

$345

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sun 5/18

1:37 pm-11:56 pm

1 stop10h 19m

$85

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 5/6

6:20 am-12:23 pm

1 stop6h 03m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 16 results

Compare providers for flights from Portland to San Diego

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to San Diego in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Priceline	Price Accuracy2 stars	Trust Score*3 stars
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy1 star	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Mytrip	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Portland-San Diego flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Portland-San Diego flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Portland-San Diego flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland-San Diego flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Portland to San Diego flights

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

Our travel experts

Robert Schrader

Expert on Alaska Airlines

Daniel Scheffler

Expert on Spirit Airlines

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?

Booking 63 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?

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 25% versus a flight at noon.

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

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

Weekly flight availability from Portland to San Diego

The most flights from PDX to SAN are scheduled on a Monday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in San Diego by month

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Portland to San Diego have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,949 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,949 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,292 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,929 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,402 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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 8 different airlines. 2h 25m 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 99 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
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 $156. Other airlines that can offer you cheap pricing are Alaska Airlines, from $177, and Frontier, from $181. You may be able to fly from Portland to San Diego for 38% 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 $85. However, be on the lookout for offers from Frontier and Hawaiian 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%), Alaska Airlines (82%), Hawaiian Airlines( 80%).
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 $396, our data indicates the cheapest price to be $88. The most popular route (Portland - San Diego), is priced around $93.
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

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Other flights to San Diego

Top 7 airlines flying from Portland to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$78	Average$136	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$99	Average$134	FlexibilityNo cancel fee	On-time62%
Alaska Airlines	Cheapest$154	Average$290	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$166	Average$308	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$177	Average$298	FlexibilityNo cancel fee	On-time85%
Southwest	Cheapest$219	Average$394	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$228	Average$376	FlexibilityNo cancel fee	On-time69%

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$85+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to San Diego with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to San Diego are usually found in September or August, booked 63 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Portland to San Diego

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Portland to San Diego

Cheapest flights from Portland to San DiegoExplore 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 April 29, 2025.

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 April 29, 2025.

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Use the filters below to find and compare flights from Portland to San Diego that are best for you.

Compare providers for flights from Portland to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to San Diego in April.

The best insider tips for Portland to San Diego flights

Cheapflights partnered with top experts to bring you the best recommendations for your Portland to San Diego trip

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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.

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 April 25, 2025.

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

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 April 29, 2025.

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 March 30, 2025.

Weekly flight availability from Portland to San Diego

Explore weekly flight availability from Portland to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 29, 2025.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

Reviews of airlines servicing San Diego

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Portland to San Diego have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

How popular is this Portland to San Diego flight route?

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

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

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

What are the cheapest flights from Portland to San Diego?

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

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

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

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

Traveling to a place near Portland?

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Alternative routes for Portland to San Diego

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Top 7 airlines flying from Portland to San Diego

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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 April 29, 2025.