$69+ Cheap flights from Portland to San Diego (PDX - SAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAN
Dec 9 — Dec 161
Round-trip
1 adult, Economy
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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 October, booked 77 days in advance, depart on a Wednesday or Tuesday and return on a Friday
Cheap flight deals from Portland to San Diego
Cheapest
Best
Last-minute
One-way
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 November 9, 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 November 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 12/52:51 pm -
Nonstop2h 33m
Sat 12/125:58 pm -
Nonstop2h 52m
Deal found 11/4![Alaska Airlines logo]()
$137
This Frontier deal was found by Cheapflights users on 11/4. 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.
Thu 12/31:58 pm -
1 stop9h 59m
Tue 12/86:30 am -
1 stop9h 40m
Deal found 11/4![Frontier logo]()
$138
This Frontier deal was found by Cheapflights users on 11/5. 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.
Thu 12/31:58 pm -
1 stop9h 59m
Thu 12/106:30 am -
1 stop6h 33m
Deal found 11/5![Frontier logo]()
$139
This Expedia deal was found by Cheapflights users on 11/4. 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 12/31:58 pm -
1 stop20h 23m
Mon 12/77:05 am -
Nonstop2h 45m
Deal found 11/4![Multiple Airlines logo]()
$143
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:35 pm -
Nonstop2h 20m
Wed 12/96:50 am -
1 stop6h 35m
Deal found 11/4![Southwest logo]()
$147
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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 12/89:00 am -
Nonstop2h 27m
Tue 12/82:05 pm -
Nonstop2h 45m
Deal found 11/6![Alaska Airlines logo]()
$154
This Delta deal was found by Cheapflights users on 11/4. 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.
Tue 12/17:00 am -
1 stop7h 51m
Tue 12/221:45 pm -
1 stop5h 16m
Deal found 11/4![Delta logo]()
$157
This WAYA deal was found by Cheapflights users on 11/4. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1210:56 am -
1 stop7h 20m
Fri 12/188:51 pm -
Nonstop2h 51m
Deal found 11/4![Multiple Airlines logo]()
$158
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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.
Sat 12/510:30 am -
Nonstop2h 37m
Wed 12/94:13 pm -
Nonstop2h 45m
Deal found 11/6![Alaska Airlines logo]()
$159
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 12/2210:28 pm -
1 stop13h 56m
Thu 1/76:36 am -
1 stop9h 06m
Deal found 11/5![Frontier logo]()
$161
Best flights from Portland to San DiegoDiscover 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 November 9, 2026.
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 November 9, 2026.
This Delta deal was found by Cheapflights users on 11/5. 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.
Fri 1/226:00 am -
1 stop6h 27m
Mon 1/256:25 am -
1 stop6h 50m
Deal found 11/5![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 11/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/133:00 pm -
Nonstop2h 20m
Sat 1/163:00 pm -
1 stop4h 00m
Deal found 11/8![Southwest logo]()
$165
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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 1/1211:29 am -
1 stop6h 15m
Sat 1/1610:20 am -
Nonstop2h 45m
Deal found 11/5![Alaska Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/168:40 am -
1 stop8h 36m
Tue 1/192:32 pm -
2 stops6h 13m
Deal found 11/6![United Airlines logo]()
$200
This Southwest deal was found by Cheapflights users on 11/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/611:35 am -
1 stop6h 20m
Tue 2/911:00 am -
Nonstop2h 40m
Deal found 11/7![Southwest logo]()
$169
This United Airlines deal was found by Cheapflights users on 11/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:30 am -
1 stop4h 20m
Fri 12/112:30 pm -
2 stops8h 15m
Deal found 11/4![United Airlines logo]()
$204
This Delta deal was found by Cheapflights users on 11/8. 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.
Thu 12/35:30 am -
1 stop4h 41m
Mon 12/74:11 pm -
1 stop6h 21m
Deal found 11/8![Delta logo]()
$209
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 1/186:01 pm -
1 stop14h 19m
Sat 1/237:00 am -
Nonstop2h 45m
Deal found 11/4![Alaska Airlines logo]()
$230
This Delta deal was found by Cheapflights users on 11/4. 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.
Fri 12/45:30 am -
1 stop4h 41m
Sun 12/66:15 am -
1 stop5h 45m
Deal found 11/4![Delta logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 11/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/239:22 pm -
Nonstop2h 37m
Mon 1/49:24 pm -
1 stop21h 20m
Deal found 11/8![Alaska Airlines logo]()
$268
Last-minute flights from Portland to San DiegoDiscover last-minute flight deals from Portland to San Diego. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to San Diego. Data last updated November 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/4. 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.
Tue 12/111:32 am -
1 stop6h 18m
Fri 12/117:20 am -
1 stop6h 15m
Deal found 11/4![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:35 pm -
Nonstop2h 20m
Wed 12/96:50 am -
1 stop6h 35m
Deal found 11/4![Southwest logo]()
$147
This Frontier deal was found by Cheapflights users on 11/4. 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.
Thu 12/31:58 pm -
1 stop9h 59m
Tue 12/86:30 am -
1 stop9h 40m
Deal found 11/4![Frontier logo]()
$138
This Frontier deal was found by Cheapflights users on 11/5. 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.
Thu 12/31:58 pm -
1 stop9h 59m
Thu 12/106:30 am -
1 stop6h 33m
Deal found 11/5![Frontier logo]()
$139
This Expedia deal was found by Cheapflights users on 11/4. 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 12/31:58 pm -
1 stop20h 23m
Mon 12/77:05 am -
Nonstop2h 45m
Deal found 11/4![Multiple Airlines logo]()
$143
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 12/52:51 pm -
Nonstop2h 33m
Sat 12/125:58 pm -
Nonstop2h 52m
Deal found 11/4![Alaska Airlines logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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 12/89:00 am -
Nonstop2h 27m
Tue 12/82:05 pm -
Nonstop2h 45m
Deal found 11/6![Alaska Airlines logo]()
$154
This WAYA deal was found by Cheapflights users on 11/4. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1210:56 am -
1 stop7h 20m
Fri 12/188:51 pm -
Nonstop2h 51m
Deal found 11/4![Multiple Airlines logo]()
$158
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 12/2210:28 pm -
1 stop13h 56m
Thu 1/76:36 am -
1 stop9h 06m
Deal found 11/5![Frontier logo]()
$161
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 November 9, 2026.
Search for one-way flight options from Portland to San Diego. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This Southwest deal was found by Cheapflights users on 11/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/83:35 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Southwest logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Tue 12/2910:28 pm -
1 stop13h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$73
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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.
Thu 12/1012:51 pm -
1 stop19h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Mon 12/1412:51 pm -
1 stop19h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 11/5. 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 11/261:52 pm -
1 stop10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$77
This Delta deal was found by Cheapflights users on 11/4. 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.
Fri 12/41:00 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Delta logo]()
$79
This Southwest deal was found by Cheapflights users on 11/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/53:20 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Southwest logo]()
$80
This Southwest deal was found by Cheapflights users on 11/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:40 am -
2 stops5h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Southwest logo]()
$84
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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.
Wed 12/237:25 pm -
1 stop16h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$86
This Delta deal was found by Cheapflights users on 11/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:59 am -
1 stop6h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Delta logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Tue 12/85:10 pm -
2 stops25h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$91
Find 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 November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (Alaska Airlines) |
One-way from | $69 (Southwest) |
Popular in | June |
Cheapest in | September |
Average price | $297 |
Good round-trip deal | $215 or less |
Good one-way deal | $112 or less |
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 7,457,451 searches. Data last updated November 9, 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
Cheapest round-trip
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Thu 12/31
5:50 pm-8:29 pm
Nonstop2h 39m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Fri 12/4
3:35 pm-5:55 pm
Nonstop2h 20m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Fri 12/4
1:00 pm-7:06 pm
1 stop6h 06m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Wed 12/23
5:30 am-10:15 am
1 stop4h 45m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$100
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Thu 1/14
10:30 am-4:48 pm
1 stop6h 18m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$132
Quickest round-trip
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Fri 12/25
10:15 am-12:30 pm
Nonstop2h 15m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$145
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Fri 1/22
6:00 am-12:27 pm
1 stop6h 27m
San Diego
Mon 1/25
6:25 am-1:15 pm
1 stop6h 50m
$157
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Wed 1/13
3:00 pm-5:20 pm
Nonstop2h 20m
San Diego
Sat 1/16
3:00 pm-7:00 pm
1 stop4h 00m
$165
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Sat 2/6
11:35 am-5:55 pm
1 stop6h 20m
San Diego
Tue 2/9
11:00 am-1:40 pm
Nonstop2h 40m
$169
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Tue 1/12
11:29 am-5:44 pm
1 stop6h 15m
San Diego
Sat 1/16
10:20 am-1:05 pm
Nonstop2h 45m
$180
Showing 1-10 of 20 resultsSorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
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 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
Prices
Airlines
Delays
More
How far ahead should I book a flight from Portland to San Diego?
Booking 76 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, September is the cheapest month in which you can book a flight from Portland to San Diego (average of $221). Flying from Portland to San Diego in June is currently the most expensive (average of $368). 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 November 9, 2026.
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 morning, which can drop the price by up to 9% versus a flight in the evening.
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 November 7, 2026.
Travelers seeking maximum savings on their Portland to San Diego flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Portland to San Diego delayed?
About 15% of weekly flights between Portland and San Diego have experienced delays in the past year, with the average delay time being 99 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 last year, Alaska Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.
What’s the top layover airport for flights from Portland to San Diego?
Share of 1-stop round-trip flights from Portland to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Salt Lake City (SLC) – chosen by Cheapflights users on 33% of 1-stop itineraries from Portland to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from Portland to San Diego?
Average round-trip fare for 1-stop flights from Portland to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Salt Lake City (SLC) is the most affordable 1-stop option, with an average round-trip price of $111.
What’s the fastest layover option from Portland to San Diego?
Shortest average travel time for 1-stop one-way flights from Portland to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Salt Lake City (SLC) have the shortest average one-way travel time for 1-stop routes: 4h 35m.
Which airport typically offers the quickest layover for flights from Portland to San Diego?
Average layover duration for 1-stop one-way flights from Portland to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Salt Lake City (SLC) offer the fastest connection on this route, with an average layover time of 0h 42m.
The best insider tips for Portland to San Diego flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Portland to San Diego trip
Our travel experts
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 November 9, 2026.
Read through reviews of airlines operating flights from Portland to San Diego, such as Southwest,Alaska Airlines, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
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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 7,457,451 searches. Data last updated November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$83 | Average$224 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$111 | Average$216 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$125 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$137 | Average$286 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$144 | Average$297 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$151 | Average$268 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$178 | Average$370 | FlexibilityNo cancel fee | On-time69% |