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$168+ Cheap flights from San Diego to Portland, ME (SAN - PWM)

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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PWM
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Portland are usually found in October or February, booked 21 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

Find flight deals from San Diego to Portland

Cheapest flights from San Diego to Portland
Explore the most affordable flight options available from San Diego to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Delta deal was found by Cheapflights users on 11/12. 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 12/86:30 amSAN - PWM
2 stops14h 29mDelta
Tue 12/166:08 amPWM - SAN
2 stops15h 05mDelta
Deal found 11/12$360
This Delta deal was found by Cheapflights users on 11/12. 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 12/106:30 amSAN - PWM
2 stops14h 29mDelta
Wed 12/176:08 amPWM - SAN
1 stop9h 54mDelta
Deal found 11/12$363
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/810:45 pmSAN - PWM
1 stop9h 55mAmerican Airlines
Tue 12/163:34 pmPWM - SAN
1 stop9h 10mAmerican Airlines
Deal found 11/12$380
This American Airlines deal was found by Cheapflights users on 11/12. 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 11/263:08 pmSAN - PWM
1 stop17h 28mAmerican Airlines
Wed 12/173:55 pmPWM - SAN
1 stop8h 54mAmerican Airlines
Deal found 11/12$439
This Delta deal was found by Cheapflights users on 11/11. 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 12/181:12 pmSAN - PWM
1 stop7h 47mDelta
Sat 1/102:35 pmPWM - SAN
2 stops22h 27mDelta
Deal found 11/11$443
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Fri 12/510:45 pmSAN - PWM
1 stop10h 26mAmerican Airlines
Thu 12/185:39 amPWM - SAN
1 stop9h 00mAmerican Airlines
Deal found 11/11$456
This Delta deal was found by Cheapflights users on 11/11. 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 12/181:12 pmSAN - PWM
1 stop7h 47mDelta
Fri 1/95:30 amPWM - SAN
2 stops18h 13mDelta
Deal found 11/11$463

Cheap flight deals from San Diego to Portland

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Portland (PWM). 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 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$320
(Delta)

One-way from

$168
(Delta)

Popular in

March

Cheapest in

October

Average price

$541
Provider with most accurate pricing for San Diego-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Portland flights.
Search Deals
From San Diego to Portland
Search Deals
One-way flight from San Diego to Portland
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Portland 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 November 13, 2025.
Use the filters below to find and compare flights from San Diego to Portland that are best for you.

Fly from

San Diego

Fly to

Portland

Route

Depart

Return

Price

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Wed 1/7

6:50 am-12:20 am

2 stops14h 30m

Portland

Sat 1/10

5:30 am-4:43 pm

2 stops14h 13m

$320

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 12/8

6:30 am-11:59 pm

2 stops14h 29m

Portland

Tue 12/16

6:08 am-6:13 pm

2 stops15h 05m

$360

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Wed 12/10

6:30 am-11:59 pm

2 stops14h 29m

Portland

Wed 12/17

6:08 am-1:02 pm

1 stop9h 54m

$363

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Wed 12/10

10:34 pm-9:10 am

1 stop7h 36m

Portland

Wed 12/17

6:00 am-12:35 pm

1 stop9h 35m

$367

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Wed 1/7

12:00 pm-10:15 pm

1 stop7h 15m

Portland

Sat 1/10

3:30 pm-9:40 pm

1 stop9h 10m

$372

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 12/8

10:45 pm-11:40 am

1 stop9h 55m

Portland

Tue 12/16

7:00 am-6:25 pm

2 stops14h 25m

$381

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sun 2/15

6:35 am-6:03 pm

1 stop8h 28m

Portland

Mon 2/23

12:43 pm-6:55 pm

1 stop9h 12m

$406

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 3/3

11:05 am-11:04 pm

1 stop8h 59m

Portland

Wed 3/4

6:00 am-11:04 pm

2 stops20h 04m

$430

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 1/20

11:08 am-10:29 pm

1 stop8h 21m

$180

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 2/10

6:55 pm-12:03 pm

2 stops14h 08m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 16 results
1
2

Compare providers for flights from San Diego to Portland

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 San Diego to Portland in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 San Diego-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Portland, Maine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Portland, Maine flights, Cheapflights users trust eDreams the most. eDreams 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 San Diego-Portland, Maine 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 San Diego to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from San Diego 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 San Diego to Portland

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Portland. Price data was last updated on November 7, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Portland, Maine, you should look to book at least 21 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 San Diego to Portland, Maine?

Currently, March is the cheapest month in which you can book a flight from San Diego to Portland, Maine (average of $98). Flying from San Diego to Portland, Maine in June is currently the most expensive (average of $188). 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 SAN to PWM?

Find hourly flight availability from San Diego to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 25% on flights from San Diego to Portland, Maine by exploring options for tickets in the afternoon.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated November 13, 2025.
Read through reviews of airlines operating flights from San Diego to Portland, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,009 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,015 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,050 reviews
Southwest
8.0
Very good
4,235 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

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

    Delta and United Airlines can get you from San Diego to Portland, Maine in just under 7h 36m. Your travel time can differ by up to 6h 54m. The distance between San Diego and Portland, Maine is about 2616 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $312, American Airlines will fly you from San Diego to Portland, Maine and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $312 and $333, respectively. You may be able to fly from San Diego to Portland, Maine for 36% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Portland 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 San Diego to Portland, Maine?

    Currently, March is the cheapest month in which you can book a flight from San Diego to Portland, Maine (average of $98). Flying from San Diego to Portland, Maine in June is currently the most expensive (average of $188). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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Top 4 airlines flying from San Diego to Portland

Discover the top 4 airlines that operate flights from San Diego to Portland. 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$312Average$432FlexibilityNo cancel feeOn-time71%
DeltaCheapest$312Average$508FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$333Average$587FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$361Average$506FlexibilityNo cancel feeOn-time63%

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