$168+ Cheap flights from Portland, ME to San Diego (PWM - 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SAN
Jul 11 — Jul 181
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.Cheap flight deals from Portland to San Diego
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Best
Last-minute
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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 June 11, 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 June 11, 2026.
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:56 am
PWM
- SAN
1 stop11h 19m
American Airlines
Mon 8/316:15 am
SAN
- PWM
1 stop8h 51m
American Airlines
Deal found 6/11![American Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 6/11. 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 8/256:05 am
PWM
- SAN
1 stop8h 02m
Delta
Mon 8/3110:17 pm
SAN
- PWM
2 stops11h 15m
Delta
Deal found 6/11![Delta logo]()
$328
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:24 pm
PWM
- SAN
1 stop9h 01m
American Airlines
Wed 9/1610:04 am
SAN
- PWM
1 stop10h 43m
American Airlines
Deal found 6/8![American Airlines logo]()
$358
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/42:56 pm
PWM
- SAN
1 stop8h 54m
American Airlines
Mon 8/106:15 am
SAN
- PWM
1 stop8h 51m
American Airlines
Deal found 6/11![American Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 6/8. 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.
Thu 7/233:20 pm
PWM
- SAN
1 stop11h 05m
Southwest
Tue 7/2811:45 am
SAN
- PWM
1 stop8h 15m
Southwest
Deal found 6/8![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:10 am
PWM
- SAN
2 stops13h 55m
Delta
Mon 8/3110:17 pm
SAN
- PWM
2 stops11h 50m
Delta
Deal found 6/7![Delta logo]()
$378
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:33 pm
PWM
- SAN
1 stop9h 26m
American Airlines
Mon 7/279:55 pm
SAN
- PWM
1 stop9h 36m
American Airlines
Deal found 6/8![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 9/146:05 am
PWM
- SAN
1 stop9h 30m
Delta
Wed 9/166:15 am
SAN
- PWM
2 stops14h 02m
Delta
Deal found 6/8![Delta logo]()
$382
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 June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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 9/156:05 am
PWM
- SAN
1 stop8h 11m
Delta
Sat 9/197:58 pm
SAN
- PWM
2 stops14h 09m
Delta
Deal found 6/11![Delta logo]()
$328
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 7/213:45 pm
PWM
- SAN
2 stops10h 10m
Southwest
Tue 7/287:50 am
SAN
- PWM
2 stops10h 45m
Southwest
Deal found 6/7![Southwest logo]()
$432
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:15 am
PWM
- SAN
1 stop9h 02m
United Airlines
Sat 9/2610:40 pm
SAN
- PWM
1 stop9h 00m
United Airlines
Deal found 6/9![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 6/8. 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 8/276:30 am
PWM
- SAN
2 stops13h 34m
Delta
Wed 9/26:15 am
SAN
- PWM
2 stops13h 58m
Delta
Deal found 6/8![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 9/146:05 am
PWM
- SAN
1 stop9h 30m
Delta
Wed 9/166:15 am
SAN
- PWM
2 stops14h 02m
Delta
Deal found 6/8![Delta logo]()
$382
This Southwest deal was found by Cheapflights users on 6/11. 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 8/41:05 pm
PWM
- SAN
2 stops10h 25m
Southwest
Mon 8/109:00 pm
SAN
- PWM
2 stops9h 55m
Southwest
Deal found 6/11![Southwest logo]()
$447
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/42:53 pm
PWM
- SAN
2 stops12h 01m
Delta
Wed 8/126:15 am
SAN
- PWM
2 stops15h 44m
Delta
Deal found 6/10![Delta logo]()
$425
This Delta deal was found by Cheapflights users on 6/8. 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.
Fri 7/106:00 am
PWM
- SAN
1 stop8h 55m
Delta
Tue 7/2111:37 am
SAN
- PWM
2 stops10h 22m
Delta
Deal found 6/8![Delta logo]()
$432
Last-minute flights from Portland to San DiegoDiscover last-minute flight deals from Portland to San Diego. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to San Diego. Data last updated June 11, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:00 pm
PWM
- SAN
1 stop8h 34m
United Airlines
Sat 7/46:20 am
SAN
- PWM
1 stop7h 39m
United Airlines
Deal found 6/7![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 6/8. 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.
Fri 7/106:00 am
PWM
- SAN
1 stop8h 55m
Delta
Tue 7/211:05 pm
SAN
- PWM
1 stop8h 54m
Delta
Deal found 6/8![Delta logo]()
$427
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:56 pm
PWM
- SAN
1 stop8h 54m
American Airlines
Mon 7/279:55 pm
SAN
- PWM
1 stop9h 36m
American Airlines
Deal found 6/8![American Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 7/215:30 am
PWM
- SAN
1 stop8h 40m
Southwest
Tue 7/2811:45 am
SAN
- PWM
1 stop8h 15m
Southwest
Deal found 6/7![Southwest logo]()
$422
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:56 pm
PWM
- SAN
1 stop8h 54m
American Airlines
Tue 7/281:07 pm
SAN
- PWM
1 stop8h 36m
American Airlines
Deal found 6/10![American Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:33 pm
PWM
- SAN
1 stop9h 26m
American Airlines
Mon 7/279:55 pm
SAN
- PWM
1 stop9h 36m
American Airlines
Deal found 6/8![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 6/8. 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.
Thu 7/233:20 pm
PWM
- SAN
1 stop11h 05m
Southwest
Tue 7/2811:45 am
SAN
- PWM
1 stop8h 15m
Southwest
Deal found 6/8![Southwest logo]()
$367
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 June 11, 2026.
Search for one-way flight options from Portland to San Diego. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:00 am
PWM
- SAN
1 stop8h 07m
American Airlines
Deal found 6/10![American Airlines logo]()
$168
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/42:56 pm
PWM
- SAN
1 stop8h 54m
American Airlines
Deal found 6/10![American Airlines logo]()
$172
This Delta deal was found by Cheapflights users on 6/11. 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 8/202:53 pm
PWM
- SAN
2 stops12h 01m
Delta
Deal found 6/11![Delta logo]()
$173
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 8/212:38 pm
PWM
- SAN
2 stops10h 32m
United Airlines
Deal found 6/11![United Airlines logo]()
$205
This Delta deal was found by Cheapflights users on 6/11. 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.
Wed 7/156:00 am
PWM
- SAN
2 stops12h 08m
Delta
Deal found 6/11![Delta logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Thu 8/208:22 pm
PWM
- SAN
1 stop18h 58m
Breeze Airways
Deal found 6/10![Breeze Airways logo]()
$218
This Southwest deal was found by Cheapflights users on 6/8. 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.
Fri 8/212:10 pm
PWM
- SAN
1 stop7h 40m
Southwest
Deal found 6/8![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 6/8. 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.
Fri 8/216:00 am
PWM
- SAN
2 stops12h 10m
Delta
Deal found 6/8![Delta logo]()
$227
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:56 pm
PWM
- SAN
1 stop8h 54m
American Airlines
Deal found 6/7![American Airlines logo]()
$234
Find flight deals from Portland to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $344 (Delta) |
One-way from | $168 (American Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $651 |
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 June 11, 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
PWM - SAN
PWMSAN
Portland
Tue 9/15
6:05 am-11:16 am
1 stop8h 11m
San Diego
Sat 9/19
7:58 pm-1:07 pm
2 stops14h 09m
$328
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Thu 8/27
6:30 am-5:04 pm
2 stops13h 34m
San Diego
Wed 9/2
6:15 am-11:13 pm
2 stops13h 58m
$378
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Mon 9/14
6:05 am-12:35 pm
1 stop9h 30m
San Diego
Wed 9/16
6:15 am-11:17 pm
2 stops14h 02m
$382
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Tue 8/4
2:53 pm-11:54 pm
2 stops12h 01m
San Diego
Wed 8/12
6:15 am-12:59 am
2 stops15h 44m
$425
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Tue 7/21
3:45 pm-10:55 pm
2 stops10h 10m
San Diego
Tue 7/28
7:50 am-9:35 pm
2 stops10h 45m
$432
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Fri 7/10
6:00 am-11:55 am
1 stop8h 55m
San Diego
Tue 7/21
11:37 am-12:59 am
2 stops10h 22m
$432
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Tue 8/4
1:05 pm-8:30 pm
2 stops10h 25m
San Diego
Mon 8/10
9:00 pm-9:55 am
2 stops9h 55m
$447
Quickest round-trip
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Wed 9/23
5:15 am-11:17 am
1 stop9h 02m
San Diego
Sat 9/26
10:40 pm-10:40 am
1 stop9h 00m
$449
Cheapest one-way
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Sat 9/26
5:40 am-1:00 pm
1 stop10h 20m
$168
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Sat 8/22
6:05 am-12:33 pm
1 stop9h 28m
$168
Showing 1-10 of 13 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-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, Maine-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-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, Maine-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.
PWM-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
How far ahead should I book a flight from Portland, Maine to San Diego?
To ensure you get the cheapest price possible for a flight from Portland, Maine to San Diego, you should look to book at least 16 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Portland, Maine to San Diego?
Currently, September is the cheapest month in which you can book a flight from Portland, Maine to San Diego (average of $390). Flying from Portland, Maine to San Diego in December is currently the most expensive (average of $686). 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.
How much does it cost to fly round-trip from Portland, Maine to San Diego?
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 June 11, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Portland to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Food
7.0
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
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
National City
Chula Vista
Poway
Coronado
La Mesa
Santee
Julian
Lemon Grove
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Portland and San Diego flights
Browse other Portland and San Diego flight options. Last updated on June 11, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.
Top 4 airlines flying from Portland to San Diego
Discover the top 4 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$304 | Average$556 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$311 | Average$467 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$312 | Average$502 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$325 | Average$486 | FlexibilityNo cancel fee | On-time63% |