What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

What is the most punctual flight time for Portland to San Diego flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Which airline has the best punctuality record on Portland to San Diego flights?

Over the past year, Alaska Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.

How often are flights from Portland to San Diego delayed?

About 13% of weekly flights between Portland and San Diego have experienced delays in the past year, with the average delay time being 101 minutes.

How long is the flight from Portland to San Diego?

A quick flight from Portland to San Diego can take about 2h 35m. Alaska Airlines provides one of the quickest options available for as low as £101. The distance from Portland to San Diego is about 933 mi. All flights are typically direct.

Weekly flight availability from Portland to San Diego

The most flights from PDX to SAN are scheduled on a Thursday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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

The top 3 most reliable airlines when flying from Portland to San Diego are Japan Airlines (71%), Icelandair (70%) and Sun Country Air (67%).

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 holiday 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.

£51+ Cheap Flights from Portland to San Diego

Cheap flight deals 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 6 September 2026.

Sat 26/917:38 -

Nonstop2h 43m

Thu 1/1014:17 -

Nonstop2h 36m

Deal found 2/9£101

Thu 15/1013:49 -

Nonstop2h 33m

Mon 19/1020:05 -

Nonstop2h 42m

Deal found 2/9£104

Sat 26/913:35 -

1 stop4h 35m

Wed 30/910:50 -

Nonstop2h 30m

Deal found 2/9£106

Tue 27/1010:30 -

Nonstop2h 42m

Wed 28/1014:10 -

Nonstop2h 41m

Deal found 3/9£107

Sat 5/1221:30 -

Nonstop2h 36m

Sat 12/1220:37 -

Nonstop2h 38m

Deal found 3/9£107

Tue 6/1005:30 -

1 stop6h 50m

Sat 10/1016:55 -

Nonstop2h 40m

Deal found 3/9£109

Sat 24/1013:49 -

Nonstop2h 33m

Mon 26/1006:53 -

Nonstop2h 38m

Deal found 2/9£111

Thu 24/905:30 -

1 stop4h 39m

Thu 1/1016:23 -

1 stop7h 31m

Deal found 2/9£116

Thu 29/1013:49 -

Nonstop2h 33m

Mon 2/1110:51 -

Nonstop2h 46m

Deal found 1/9£118

Find flight deals from Portland to San Diego

Round-trip from	£101
One-way from	£51
Popular in	June
Cheapest in	September
Average price	£166

Alaska Airlines
15/10-19/10
Nonstop
5h 20m total
Portland to San Diego

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Alaska Airlines
2/12-31/12
Nonstop
2h 36m total
Portland to San Diego

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Highest demand for flights based on searches. 11% potential increase in price (£20 potential increase over avg. return price).

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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).

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Average for round-trip flights in September 2026

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Sat 17/10

08:00-10:25

Nonstop2h 25m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£51

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Sat 31/10

07:45-12:30

1 stop4h 45m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£58

Fastest return journey

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Wed 2/12

10:15-12:30

Nonstop2h 15m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£73

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Sun 25/10

07:09-09:56

Nonstop2h 47m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£77

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Sun 25/10

07:45-10:10

Nonstop2h 25m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£77

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Wed 13/1

08:45-17:27

2 stops8h 42m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£78

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Tue 6/10

15:50-22:05

1 stop6h 15m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£81

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Sat 7/11

14:45-19:44

1 stop4h 59m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£83

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Tue 3/11

11:54-16:22

1 stop4h 28m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£83

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Fri 6/11

05:00-10:15

1 stop5h 15m

San Diego

Wed 31/12

00:00-00:00

Nonstop0h 00m

£84

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 20 resultsSorted by cheapest first

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.

PDX-SAN

Estimated return 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

Prices

Airlines

Delays

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

The best time to book flights from Portland to San Diego is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Portland to San Diego (average of £166). Flying from Portland to San Diego in June is currently the most expensive (average of £273). 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 decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Portland to San Diego?

Airfare is below average for this route at the moment.

Portland to San Diego flights typically cost between £126 and £239 in September.
The cheapest return price found within the last 5 days was £101 on Alaska Airlines (26 Sept–1 Oct).

Related info for your journey

How long is the flight from Portland to San Diego?
A quick flight from Portland to San Diego can take about 2h 35m. Alaska Airlines provides one of the quickest options available for as low as £101. The distance from Portland to San Diego is about 933 mi. All flights are typically direct.
What are the most reliable airlines from Portland to San Diego?
The top 3 most reliable airlines when flying from Portland to San Diego are Japan Airlines (71%), Icelandair (70%) and Sun Country Air (67%).
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 holiday 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, September is the cheapest month in which you can book a flight from Portland to San Diego (average of £166). Flying from Portland to San Diego in June is currently the most expensive (average of £273). 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.

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Deals for Portland to San Diego flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Portland to San Diego?

Cheapflights helps you find that perfect flight to San Diego from Portland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portland to San Diego with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portland to San Diego flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Portland to San Diego become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Portland today and book when prices fit your budget.

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Cheap flights from Portland to San Diego from £51

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 6 September 2026.

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 6 September 2026.

Best flights from Portland to San DiegoDiscover carefully curated flight deals from Portland to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Discover carefully curated flight deals from Portland to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Direct flights from Portland to San DiegoExplore direct flight options from Portland to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 September 2026.

Explore direct flight options from Portland to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 September 2026.

Last-minute flights from Portland to San DiegoDiscover last-minute flight deals from Portland to San Diego. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Portland to San Diego. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Portland to San DiegoSearch for one-way flight options from Portland to San Diego. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Search for one-way flight options from Portland to San Diego. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

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

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

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

The best time to book flights from Portland to San Diego is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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?

When flying from Portland to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Portland to San Diego?

Airfare is below average for this route at the moment.

Portland to San Diego flights typically cost between £126 and £239 in September.The cheapest return price found within the last 5 days was £101 on Alaska Airlines (26 Sept–1 Oct).

Weekly flight availability from Portland to San Diego

The most flights from PDX to SAN are scheduled on a Thursday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

How often are flights from Portland to San Diego delayed?

About 13% of weekly flights between Portland and San Diego have experienced delays in the past year, with the average delay time being 101 minutes.

What is the most punctual flight time for Portland to San Diego flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Portland to San Diego flights?

Over the past year, Alaska Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.

Related info for your journey

How long is the flight from Portland to San Diego?

What are the most reliable airlines 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?

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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 6 September 2026.

Best flights from Portland to San Diego
Discover carefully curated flight deals from Portland to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Direct flights from Portland to San Diego
Explore direct flight options from Portland to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 September 2026.

Last-minute flights from Portland to San Diego
Discover last-minute flight deals from Portland to San Diego. Data last updated 6 September 2026 and is based on user searches.

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 6 September 2026.

Portland to San Diego flights typically cost between £126 and £239 in September.
The cheapest return price found within the last 5 days was £101 on Alaska Airlines (26 Sept–1 Oct).