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$224+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PWM
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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1. Tell us where you want to go

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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

Cheap 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 December 28, 2025.

This Delta deal was found by Cheapflights users on 12/26. 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 12/2711:25 amSAN - PWM
1 stop8h 18mDelta
Sun 12/285:45 amPWM - SAN
1 stop9h 18mDelta
Deal found 12/26$1,207

Find 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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$396
(American Airlines)

One-way from

$224
(Delta)

Popular in

December

Cheapest in

October

Average price

$818
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. 15% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 28, 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

Tue 2/17

9:45 pm-12:10 pm

1 stop11h 25m

Portland

Sun 2/22

4:50 pm-11:25 pm

1 stop9h 35m

$415

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 2/16

6:35 am-6:03 pm

1 stop8h 28m

Portland

Sat 2/21

5:31 am-3:58 pm

2 stops13h 27m

$415

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 1/17

6:00 pm-9:01 am

2 stops12h 01m

Portland

Tue 1/20

11:12 am-8:49 pm

2 stops12h 37m

$417

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 2/16

10:10 pm-1:43 pm

2 stops12h 33m

Portland

Sat 2/21

1:15 pm-11:02 pm

2 stops12h 47m

$420

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 1/17

6:30 am-11:30 pm

2 stops14h 00m

Portland

Wed 1/21

6:00 am-12:27 pm

1 stop9h 27m

$426

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Fri 3/27

9:55 pm-12:09 pm

2 stops11h 14m

Portland

Tue 3/31

4:48 pm-10:59 pm

1 stop9h 11m

$452

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Fri 3/27

11:30 am-12:05 am

1 stop9h 35m

Portland

Tue 3/31

4:30 pm-11:05 pm

1 stop9h 35m

$467

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 6/13

9:55 pm-10:44 am

1 stop9h 49m

Portland

Fri 6/26

6:00 am-11:22 am

1 stop8h 22m

$473

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sun 2/15

1:13 pm-12:18 am

1 stop8h 05m

$224

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sun 3/29

10:40 pm-1:25 pm

2 stops11h 45m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 17 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 December.
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 December 26, 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 $101). 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 December 28, 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 December 28, 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
4,256 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,256 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,019 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,113 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,073 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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?

    Southwest, American Airlines, and United Airlines can get you from San Diego to Portland, Maine in just under 8h 28m. Your travel time can differ by up to 3h 33m. 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 $213, Delta will fly you from San Diego to Portland, Maine and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines 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 58% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $148 on Delta. Other airlines that offer cheap prices include American Airlines from $150 and JetBlue from $153 one-way.

  • 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 $101). 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$312Average$420FlexibilityNo cancel feeOn-time71%
DeltaCheapest$312Average$411FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$333Average$559FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$361Average$511FlexibilityNo cancel feeOn-time63%

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