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San Diego

$148+ Cheap flights from Maine to San Diego (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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SAN
Jul 23 — Jul 301
Thu 7/23
Thu 7/30
1 adult, Economy
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Cheap flight deals from Maine to San Diego

Cheapest flights from Maine to San Diego
Explore the most affordable flight options available from Maine to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:35 pm
BOS
-
SAN
Nonstop6h 13m
JetBlue
Tue 9/159:30 pm
SAN
-
BOS
1 stop10h 16m
JetBlue
Deal found 6/18$244
This Super.com deal was found by Cheapflights users on 6/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:00 pm
BOS
-
SAN
1 stop10h 01m
JetBlue
Mon 9/219:30 pm
SAN
-
BOS
1 stop10h 16m
JetBlue
Deal found 6/18$245
This Super.com deal was found by Cheapflights users on 6/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:00 pm
BOS
-
SAN
1 stop10h 01m
JetBlue
Sat 9/199:30 pm
SAN
-
BOS
1 stop10h 16m
JetBlue
Deal found 6/20$248
This Cheapflightsfares deal was found by Cheapflights users on 6/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
BOS
-
SAN
Nonstop6h 05m
JetBlue
Tue 9/88:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Deal found 6/22$249
This United Airlines deal was found by Cheapflights users on 6/18. 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 8/283:45 pm
BOS
-
SAN
1 stop8h 40m
United Airlines
Tue 9/12:15 pm
SAN
-
BOS
1 stop8h 00m
United Airlines
Deal found 6/18$252
This Super.com deal was found by Cheapflights users on 6/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:01 am
BOS
-
SAN
1 stop8h 17m
JetBlue
Sat 8/298:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Deal found 6/18$253
This Cheapflightsfares deal was found by Cheapflights users on 6/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:01 am
BOS
-
SAN
1 stop8h 51m
JetBlue
Sun 9/61:06 pm
SAN
-
BOS
Nonstop5h 45m
JetBlue
Deal found 6/21$254
This Super.com deal was found by Cheapflights users on 6/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:00 pm
BOS
-
SAN
1 stop10h 01m
JetBlue
Thu 9/178:20 pm
SAN
-
BOS
Nonstop5h 44m
JetBlue
Deal found 6/18$256
This Delta deal was found by Cheapflights users on 6/22. 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 8/185:20 pm
BOS
-
SAN
Nonstop6h 15m
Delta
Tue 8/2510:02 pm
SAN
-
BOS
Nonstop5h 38m
Delta
Deal found 6/22$257
This Cheapflightsfares deal was found by Cheapflights users on 6/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:50 am
BOS
-
SAN
Nonstop6h 06m
JetBlue
Sun 9/61:06 pm
SAN
-
BOS
Nonstop5h 45m
JetBlue
Deal found 6/21$259
This American Airlines deal was found by Cheapflights users on 6/19. 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 7/312:53 pm
BOS
-
SAN
1 stop8h 25m
American Airlines
Fri 7/249:55 pm
SAN
-
BOS
1 stop7h 48m
American Airlines
Deal found 6/19$260
This Delta deal was found by Cheapflights users on 6/23. 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 10/283:00 pm
BGR
-
SAN
1 stop11h 45m
Delta
Sat 10/3110:10 pm
SAN
-
BGR
1 stop10h 21m
Delta
Deal found 6/23$311

Find flight deals from Maine to San Diego

Keep the following information in mind while searching for Maine to San Diego flight deals. Data was last updated June 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$244
(Cheapflightsfares)

One-way from

$148
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$652
Provider with most accurate pricing for Portland-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-San Diego flights.
Search Deals
From Maine to San Diego
Search Deals
One-way flight from Maine to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maine 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 23, 2026.
Use the filters below to find and compare flights from Maine to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 8/26

5:08 pm-10:27 pm

1 stop8h 19m

San Diego

Mon 9/7

10:40 pm-9:33 am

1 stop7h 53m

$257

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 8/26

10:05 am-6:20 pm

2 stops11h 15m

San Diego

Mon 9/7

9:00 pm-9:55 am

2 stops9h 55m

$292

BangorSan Diego

BGR - SAN

BGRSAN

Bangor

Wed 10/28

3:00 pm-11:45 pm

1 stop11h 45m

San Diego

Sat 10/31

10:10 pm-11:31 am

1 stop10h 21m

$311

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 7/24

5:10 pm-8:25 pm

Nonstop6h 15m

San Diego

Sun 7/26

10:00 pm-6:38 am

Nonstop5h 38m

$332

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 8/7

5:25 am-10:10 am

1 stop7h 45m

San Diego

Fri 8/14

3:55 pm-12:25 am

Nonstop5h 30m

$347

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Mon 8/3

5:20 pm-11:25 pm

1 stop9h 05m

San Diego

Fri 8/7

3:55 pm-12:25 am

Nonstop5h 30m

$347

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 7/8

3:45 pm-11:25 pm

1 stop10h 40m

San Diego

Mon 7/13

10:40 pm-12:15 pm

1 stop10h 35m

$352

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 9/18

6:17 pm-9:30 pm

Nonstop6h 13m

San Diego

Sun 9/20

6:55 am-6:09 am

1 stop20h 14m

$358

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 9/1

8:15 am-8:34 pm

2 stops15h 19m

San Diego

Tue 9/8

2:15 pm-1:10 am

1 stop7h 55m

$368
Quickest round-trip

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 7/2

5:10 pm-8:26 pm

Nonstop6h 16m

San Diego

Mon 7/6

9:54 pm-6:30 am

Nonstop5h 36m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Maine to San Diego

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

What is the cheapest month to book a flight from Maine to San Diego?

Currently, October is the cheapest month in which you can book a flight from Maine to San Diego (average of $229). Flying from Maine to San Diego in May is currently the most expensive (average of $409). 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 Maine to San Diego?

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

The price you pay for your flight from Maine to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 11 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

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

  • What airport do you fly into for flights to San Diego from Maine?

    If you book a flight to San Diego from Maine, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego.

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

    A quick flight from Maine to San Diego can take about 8h 19m. United Airlines provides one of the quickest options available for as low as $257. There are 2581 mi between Maine and San Diego. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Maine to San Diego are American Airlines ($101), Delta ($156), and United Airlines ($179).

  • What are the most popular routes from Maine to San Diego?

    When deciding which route to take from Maine to San Diego consider Boston Logan Intl - San Diego, Portland - San Diego or Bangor - San Diego as they are the most popular.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Maine to San Diego (average of $229). Flying from Maine to San Diego in May is currently the most expensive (average of $409). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
National City
Chula Vista
Poway
Coronado
La Mesa
Santee
Julian
Lemon Grove

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Alternative routes for Maine to San Diego

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Top 4 airlines flying from Maine to San Diego

Discover the top 4 airlines that operate flights from Maine 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 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$304Average$547FlexibilityNo cancel feeOn-time69%
DeltaCheapest$311Average$456FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$312Average$518FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$325Average$486FlexibilityNo cancel feeOn-time63%

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