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Cheap flights from San Diego to Portland from $154

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Portland departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Diego to Portland

Cheap round-trip flights

JetBlue Logo
10:10 am - 10:02 pmSAN-PWM
8h 52m1 stop
JetBlue Logo
7:09 am - 7:30 pmPWM-SAN
15h 21m1 stop
$315JetBlue
Find Deal
Fri, Oct 17 - Tue, Oct 21
Delta Logo
1:05 pm - 12:53 amSAN-PWM
8h 48m1 stop
Delta Logo
5:00 pm - 9:47 pmPWM-SAN
7h 47m1 stop
$317Delta
Find Deal
Tue, Sep 9 - Wed, Sep 24
American Airlines Logo
7:15 am - 8:14 pmSAN-PWM
9h 59m2 stops
American Airlines Logo
4:15 pm - 9:21 pmPWM-SAN
8h 06m1 stop
$322American Airlines
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Wed, Oct 8 - Wed, Oct 15
Delta Logo
12:09 pm - 12:03 amSAN-PWM
8h 54m1 stop
Delta Logo
5:00 pm - 9:47 pmPWM-SAN
7h 47m1 stop
$326Delta
Find Deal
Tue, Sep 9 - Thu, Sep 25
Delta Logo
6:25 am - 11:25 pmSAN-PWM
14h 00m2 stops
Delta Logo
12:40 pm - 10:59 pmPWM-SAN
13h 19m2 stops
$327Delta
Find Deal
Tue, Sep 9 - Wed, Sep 24
Delta Logo
10:40 pm - 1:56 pmSAN-PWM
12h 16m2 stops
Delta Logo
5:00 pm - 9:47 pmPWM-SAN
7h 47m1 stop
$331Delta
Find Deal
Tue, Sep 9 - Thu, Sep 25
JetBlue Logo
10:10 am - 10:01 pmSAN-PWM
8h 51m1 stop
JetBlue Logo
2:17 pm - 7:30 pmPWM-SAN
8h 13m1 stop
$341JetBlue
Find Deal
Wed, Oct 8 - Wed, Oct 15
American Airlines Logo
6:22 am - 5:39 pmSAN-PWM
8h 17m1 stop
American Airlines Logo
6:15 am - 2:03 pmPWM-SAN
10h 48m1 stop
$350American Airlines
Find Deal
Tue, Sep 23 - Sat, Sep 27
American Airlines Logo
6:22 am - 5:55 pmSAN-PWM
8h 33m1 stop
American Airlines Logo
6:15 am - 2:03 pmPWM-SAN
10h 48m1 stop
$359American Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
10:53 am - 10:45 pmSAN-PWM
8h 52m1 stop
American Airlines Logo
4:15 pm - 9:21 pmPWM-SAN
8h 06m1 stop
$368American Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15

Southwest flights from San Diego to Portland, Maine

Our best Southwest deals on San Diego to Portland, Maine flight tickets
Southwest
Aug 26
SAN8:30 amSan Diego
10h 55m
2 stops
PWM10:25 pmPortland
Sep 3
PWM10:30 amPortland
9h 00m
2 stops
SAN4:30 pmSan Diego
$640
Find similar
Southwest
Aug 20
SAN6:40 pmSan Diego
12h 10m
2 stops
PWM9:50 amPortland
Aug 27
PWM5:50 amPortland
11h 30m
2 stops
SAN2:20 pmSan Diego
$743
Find similar
Southwest
Aug 19
SAN6:25 amSan Diego
8h 55m
1 stop
PWM6:20 pmPortland
Aug 21
PWM8:25 amPortland
10h 05m
1 stop
SAN3:30 pmSan Diego
$831
Find similar

Alaska Airlines flights from San Diego to Portland, Maine

Our best Alaska Airlines deals on San Diego to Portland, Maine flight tickets
Alaska Airlines
Aug 26
SAN1:49 pmSan Diego
17h 52m
2 stops
PWM10:41 amPortland
Sep 3
PWM2:02 pmPortland
23h 18m
3 stops
SAN10:20 amSan Diego
$817
Find similar
Alaska Airlines
Aug 30
SAN6:10 pmSan Diego
23h 26m
3 stops
PWM8:36 pmPortland
Sep 2
PWM4:10 pmPortland
20h 49m
3 stops
SAN9:59 amSan Diego
$1,110
Find similar
Alaska Airlines
Aug 19
SAN5:51 pmSan Diego
23h 45m
2 stops
PWM8:36 pmPortland
Aug 21
PWM4:05 pmPortland
20h 54m
3 stops
SAN9:59 amSan Diego
$1,373
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Portland, Maine 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, momondo users made 832,500 searches. Data last updated August 18, 2025.
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

Fri 10/17

10:10 am-10:02 pm

1 stop8h 52m

Portland

Tue 10/21

7:09 am-7:30 pm

1 stop15h 21m

$315

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 9/9

1:05 pm-12:53 am

1 stop8h 48m

Portland

Wed 9/24

5:00 pm-9:47 pm

1 stop7h 47m

$317

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Wed 10/8

7:15 am-8:14 pm

2 stops9h 59m

Portland

Wed 10/15

4:15 pm-9:21 pm

1 stop8h 06m

$322

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 9/9

12:09 pm-12:03 am

1 stop8h 54m

Portland

Thu 9/25

5:00 pm-9:47 pm

1 stop7h 47m

$326

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 9/9

6:25 am-11:25 pm

2 stops14h 00m

Portland

Wed 9/24

12:40 pm-10:59 pm

2 stops13h 19m

$327

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 9/9

10:40 pm-1:56 pm

2 stops12h 16m

Portland

Thu 9/25

5:00 pm-9:47 pm

1 stop7h 47m

$331

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Wed 10/8

10:10 am-10:01 pm

1 stop8h 51m

Portland

Wed 10/15

2:17 pm-7:30 pm

1 stop8h 13m

$341

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Tue 9/23

6:22 am-5:39 pm

1 stop8h 17m

Portland

Sat 9/27

6:15 am-2:03 pm

1 stop10h 48m

$350

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Sat 9/20

6:22 am-5:55 pm

1 stop8h 33m

Portland

Sat 9/27

6:15 am-2:03 pm

1 stop10h 48m

$359

San DiegoPortland

SAN - PWM

SANPWM

San Diego

Wed 10/8

10:53 am-10:45 pm

1 stop8h 52m

Portland

Wed 10/15

4:15 pm-9:21 pm

1 stop8h 06m

$368

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

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

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

The cheapest month to fly to Portland, Maine from San Diego is in February. Flight prices, which tend to average around $384, 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 February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $387.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from San Diego is on a Saturday. momondo users have found tickets for Saturday departures for as low as $461. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $665.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the evening is the cheapest time of day to fly from San Diego to Portland, Maine when you can find flight prices for as low as $491. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $587. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $499 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 August 2025, prices for San Diego to Portland, Maine flights are approximately 5% cheaper 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

Best Price Found

$154

Fastest flight time

7h 35m

Direct flights

None

Airports in Portland, Maine

1 airport
The best one-way flight to Portland, Maine from San Diego in the past 72 hours is $154. The best round-trip flight deal from San Diego to Portland, Maine found on momondo in the last 72 hours is $315.
The fastest flight from San Diego to Portland, Maine takes 7h 35m
There are no direct flights from San Diego to Portland, Maine. Popular non-direct route for this connection is San Diego Airport - Portland Airport.
There is 1 airport near Portland, Maine: Portland (PWM)
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  • How far is San Diego to Portland by plane?

    Portland is 2617.3 mi away from San Diego. Flights usually cover this in 7h 51m, 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?

  • 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?

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
DeltaPriceFrom $312Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $332Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $333Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
SouthwestPriceFrom $361Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Bartlett
Gorham
Brunswick
Auburn
Intervale
Windham
Bath
Falmouth
Georgetown
Oxford
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.

An easier way to manage your Portland, Maine trip

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