What airlines fly to Portland, Maine?

JetBlue, American Airlines and Delta are the top three most popular airlines that fly to Portland, Maine from San Diego according to our data. JetBlue is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 8 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San Diego to Portland?

United Airlines, Delta, and American Airlines are the most popular carriers operating from San Diego to Portland

When did momondo last update prices for flights from San Diego Airport to Portland Airport?

Prices for flights from San Diego Airport to Portland Airport refresh daily.

How many operators does momondo search for flights from San Diego Airport to Portland Airport?

There are 4 operators available for flights from San Diego Airport to Portland Airport as of January 2026.

How old do you have to be to fly from San Diego Airport to Portland Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$187 Cheap Flights from San Diego to Portland in 2026

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Find the cheapest flights from San Diego to Portland

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:10 pm - 1:54 pm

SAN

PWM

12h 44m1 stop

6:30 am - 11:43 pm

PWM

SAN

20h 13m1 stop

$353Delta

Mon, Jun 1 - Sat, Jun 13

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

2:35 pm - 11:43 pm

PWM

SAN

12h 08m1 stop

$373Delta

Sat, Jun 6 - Tue, Jun 9

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

6:30 am - 11:43 pm

PWM

SAN

20h 13m1 stop

$379Delta

Mon, Jun 1 - Fri, Jun 12

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

6:00 am - 9:44 pm

PWM

SAN

18h 44m2 stops

$385Delta

Mon, Jun 1 - Wed, Jun 10

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

6:30 am - 11:43 pm

PWM

SAN

20h 13m1 stop

$388Delta

Sat, Jun 6 - Fri, Jun 12

10:35 pm - 5:27 pm

SAN

PWM

15h 52m1 stop

6:00 am - 2:29 pm

PWM

SAN

11h 29m2 stops

$392American Airlines

Fri, Feb 13 - Wed, Feb 18

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

6:00 am - 9:44 pm

PWM

SAN

18h 44m2 stops

$394Delta

Sat, Jun 6 - Wed, Jun 10

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

2:35 pm - 11:43 pm

PWM

SAN

12h 08m1 stop

$398Delta

Sat, Jun 6 - Mon, Jun 8

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

1:35 pm - 9:34 pm

PWM

SAN

10h 59m1 stop

$400Delta

Mon, Jun 1 - Sun, Jun 7

10:10 pm - 11:59 pm

SAN

PWM

22h 49m1 stop

2:35 pm - 11:43 pm

PWM

SAN

12h 08m1 stop

$403Delta

Sun, May 31 - Thu, Jun 11

Delta flights from San Diego to Portland, Maine

Our best Delta deals on San Diego to Portland, Maine flight tickets

Delta

Jun 1

SAN10:10 pmSan Diego

12h 44m

1 stop

PWM1:54 pmPortland

Jun 13

PWM6:30 amPortland

20h 13m

1 stop

SAN11:43 pmSan Diego

$353

Delta

Jun 6

SAN10:10 pmSan Diego

22h 49m

1 stop

PWM11:59 pmPortland

Jun 9

PWM2:35 pmPortland

12h 08m

1 stop

SAN11:43 pmSan Diego

$373

Delta

Jun 1

SAN10:10 pmSan Diego

22h 49m

1 stop

PWM11:59 pmPortland

Jun 12

PWM6:30 amPortland

20h 13m

1 stop

SAN11:43 pmSan Diego

$379

American Airlines flights from San Diego to Portland, Maine

Our best American Airlines deals on San Diego to Portland, Maine flight tickets

American Airlines

Feb 13

SAN10:35 pmSan Diego

15h 52m

1 stop

PWM5:27 pmPortland

Feb 18

PWM6:00 amPortland

11h 29m

2 stops

SAN2:29 pmSan Diego

$392

American Airlines

Mar 1

SAN6:20 amSan Diego

7h 47m

1 stop

PWM5:07 pmPortland

Mar 7

PWM12:29 pmPortland

9h 55m

1 stop

SAN7:24 pmSan Diego

$410

American Airlines

Feb 23

SAN7:42 pmSan Diego

11h 43m

2 stops

PWM10:25 amPortland

Mar 2

PWM12:29 pmPortland

9h 55m

1 stop

SAN7:24 pmSan Diego

$411

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 6/1

10:10 pm-1:54 pm

1 stop12h 44m

Portland

Sat 6/13

6:30 am-11:43 pm

1 stop20h 13m

$353

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 6/6

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Tue 6/9

2:35 pm-11:43 pm

1 stop12h 08m

$373

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 6/1

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Fri 6/12

6:30 am-11:43 pm

1 stop20h 13m

$379

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 6/1

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Wed 6/10

6:00 am-9:44 pm

2 stops18h 44m

$385

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 6/6

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Fri 6/12

6:30 am-11:43 pm

1 stop20h 13m

$388

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Fri 2/13

10:35 pm-5:27 pm

1 stop15h 52m

Portland

Wed 2/18

6:00 am-2:29 pm

2 stops11h 29m

$392

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 6/6

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Wed 6/10

6:00 am-9:44 pm

2 stops18h 44m

$394

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 6/6

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Mon 6/8

2:35 pm-11:43 pm

1 stop12h 08m

$398

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Mon 6/1

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Sun 6/7

1:35 pm-9:34 pm

1 stop10h 59m

$400

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sun 5/31

10:10 pm-11:59 pm

1 stop22h 49m

Portland

Thu 6/11

2:35 pm-11:43 pm

1 stop12h 08m

$403

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Diego to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from San Diego is in October. Flight prices, which tend to average around $353, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $427.

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $512 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from San Diego for as low as $333 on momondo.

How have San Diego to Portland, Maine flight prices changed over time?

As of January 2026, prices for San Diego to Portland, Maine flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Diego to Portland, Maine (SAN to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Portland, Maine

Fastest flight time	7h 15m
Direct flights	None

The fastest flight from San Diego to Portland, Maine takes 7h 15m

There are no direct flights from San Diego to Portland, Maine. There are no popular flight routes from San Diego to Portland, Maine.

Search flight deals

How far is San Diego to Portland by plane?
Portland is 2617.3 mi away from San Diego. Flights usually cover this in 7h 15m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Diego Airport to Portland Airport?
Prices for flights from San Diego Airport to Portland Airport refresh daily.
How many operators does momondo search for flights from San Diego Airport to Portland Airport?
There are 4 operators available for flights from San Diego Airport to Portland Airport as of January 2026.
How old do you have to be to fly from San Diego Airport to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from San Diego to Portland, Maine?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Diego to Portland, Maine is American Airlines (50% of total bookings). The next most popular airlines are United Airlines (21%), Southwest (18%), and Delta (12%).

Best airlines flying from San Diego to Portland, Maine

Compare and see reviews for airlines that fly from San Diego to Portland, Maine with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $312	Free Cancellation	Rating 7.2 11,106 reviews	Search American Airlines flights
Delta	PriceFrom $312	Free Cancellation	Rating 7.9 8,034 reviews	Search Delta flights
United Airlines	PriceFrom $333	Free Cancellation	Rating 7.4 9,143 reviews	Search United Airlines flights
Southwest	PriceFrom $361	Free Cancellation	Rating 8.0 4,254 reviews	Search Southwest flights

North Conway

Boothbay Harbor

Jackson

Conway

Freeport

Lewiston

Brunswick

Bartlett

Gorham

Auburn

Windham

Intervale

Oxford

Bath

Georgetown

Falmouth

Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Portland?

It is quick and easy to find San Diego to Portland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portland that suits you.

Can I find flights from San Diego to Portland with flexible booking policies on momondo?

All flight searches from San Diego to Portland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Diego to Portland?

momondo provides multiple filters to help you find the best flight to Portland from San Diego. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from San Diego to Portland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Diego to Portland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.