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

United Airlines, Delta, and Southwest are the most popular carriers operating from Maine to San Diego

How many flights depart from Maine to San Diego on average per week?

The number of flights available between Maine and San Diego is 61 per week as of April 2026. The most frequent departure day is Wed, with 20% of weekly flights leaving on this day.

What airlines fly to San Diego?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Diego from Maine according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 4 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to San Diego?

On average, it takes 8h 20m to fly from Maine to San Diego if you fly out of Portland (the most popular airport in Maine) and into San Diego (the most popular airport in San Diego). If you’re flying out of Bangor and into San Diego, then the flight time is around 9h 53m.

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

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

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

There are 8 operators available for flights from Maine to San Diego Airport as of April 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maine to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$137 Cheap Flights from Maine to San Diego in 2026

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Find the cheapest flights from Maine to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:45 pm - 11:10 pm

BOS

SAN

10h 25m

1 stop

2:35 pm - 12:50 am

SAN

BOS

7h 15m

1 stop

$237Southwest

Fri, Apr 24 - Fri, May 1

3:45 pm - 10:30 pm

BOS

SAN

9h 45m

2 stops

2:35 pm - 12:50 am

SAN

BOS

7h 15m

1 stop

$242Southwest

Fri, Apr 24 - Fri, May 1

2:25 pm - 9:30 pm

BOS

SAN

10h 05m

2 stops

7:40 pm - 8:15 am

SAN

BOS

9h 35m

2 stops

$247Southwest

Tue, Apr 28 - Tue, May 5

2:26 pm - 9:48 pm

BOS

SAN

10h 22m

1 stop

10:57 am - 10:14 pm

SAN

BOS

8h 17m

1 stop

$251American Airlines

Wed, May 27 - Wed, Jun 3

5:56 pm - 9:29 pm

BOS

SAN

6h 33mnonstop

8:54 pm - 5:44 am

SAN

BOS

5h 50mnonstop

$252Alaska Airlines

Tue, May 5 - Wed, May 13

6:54 pm - 11:42 pm

BOS

SAN

7h 48m

1 stop

9:59 pm - 6:30 am

SAN

BOS

5h 31mnonstop

$255Delta

Fri, Apr 24 - Fri, May 1

6:10 pm - 11:38 pm

BOS

SAN

8h 28m

1 stop

10:10 pm - 9:11 am

SAN

BOS

8h 01m

1 stop

$257Delta

Wed, Apr 22 - Tue, Apr 28

4:15 pm - 7:33 pm

BOS

SAN

6h 18mnonstop

1:41 pm - 10:23 pm

SAN

BOS

5h 42mnonstop

$258JetBlue

Thu, Jun 4 - Tue, Jun 9

7:30 am - 8:05 pm

PWM

SAN

15h 35m

1 stop

10:25 am - 11:03 pm

SAN

PWM

9h 38m

1 stop

$372JetBlue

Tue, Apr 28 - Tue, May 5

3:15 pm - 11:56 pm

BGR

SAN

11h 41m

2 stops

9:28 am - 12:25 am

SAN

BGR

11h 57m

2 stops

$378American Airlines

Fri, Apr 24 - Wed, Apr 29

Delta flights from Maine to San Diego

Our best Delta deals on Maine to San Diego flight tickets

Delta

May 27

BOS5:15 pmBoston Logan Intl

6h 21m

SAN8:36 pmSan Diego

Jun 9

SAN9:54 pmSan Diego

5h 36m

BOS6:30 amBoston Logan Intl

$238

Delta

Apr 24

BOS6:54 pmBoston Logan Intl

7h 48m

1 stop

SAN11:42 pmSan Diego

May 1

SAN9:59 pmSan Diego

5h 31m

BOS6:30 amBoston Logan Intl

$255

Delta

May 26

BOS5:15 pmBoston Logan Intl

6h 21m

SAN8:36 pmSan Diego

Jun 9

SAN9:54 pmSan Diego

5h 36m

BOS6:30 amBoston Logan Intl

$257

United Airlines flights from Maine to San Diego

Our best United Airlines deals on Maine to San Diego flight tickets

United Airlines

Jun 4

BOS6:00 amBoston Logan Intl

8h 21m

1 stop

SAN11:21 amSan Diego

Jun 7

SAN10:40 pmSan Diego

7h 59m

1 stop

BOS9:39 amBoston Logan Intl

$237

United Airlines

Apr 29

BOS9:15 amBoston Logan Intl

8h 42m

1 stop

SAN2:57 pmSan Diego

May 2

SAN10:20 pmSan Diego

7h 51m

1 stop

BOS9:11 amBoston Logan Intl

$317

United Airlines

Apr 13

BOS9:15 amBoston Logan Intl

8h 42m

1 stop

SAN2:57 pmSan Diego

Apr 16

SAN2:10 pmSan Diego

7h 49m

1 stop

BOS12:59 amBoston Logan Intl

$342

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 4/24

3:45 pm-11:10 pm

1 stop10h 25m

San Diego

Fri 5/1

2:35 pm-12:50 am

1 stop7h 15m

$237

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 4/24

3:45 pm-10:30 pm

2 stops9h 45m

San Diego

Fri 5/1

2:35 pm-12:50 am

1 stop7h 15m

$242

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 4/28

2:25 pm-9:30 pm

2 stops10h 05m

San Diego

Tue 5/5

7:40 pm-8:15 am

2 stops9h 35m

$247

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 5/27

2:26 pm-9:48 pm

1 stop10h 22m

San Diego

Wed 6/3

10:57 am-10:14 pm

1 stop8h 17m

$251

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 5/5

5:56 pm-9:29 pm

Nonstop6h 33m

San Diego

Wed 5/13

8:54 pm-5:44 am

Nonstop5h 50m

$252

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 4/24

6:54 pm-11:42 pm

1 stop7h 48m

San Diego

Fri 5/1

9:59 pm-6:30 am

Nonstop5h 31m

$255

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 4/22

6:10 pm-11:38 pm

1 stop8h 28m

San Diego

Tue 4/28

10:10 pm-9:11 am

1 stop8h 01m

$257

Quickest round-trip

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 6/4

4:15 pm-7:33 pm

Nonstop6h 18m

San Diego

Tue 6/9

1:41 pm-10:23 pm

Nonstop5h 42m

$258

PortlandSan Diego

PWM - SAN

PWMSAN

Portland

Tue 4/28

7:30 am-8:05 pm

1 stop15h 35m

San Diego

Tue 5/5

10:25 am-11:03 pm

1 stop9h 38m

$372

BangorSan Diego

BGR - SAN

BGRSAN

Bangor

Fri 4/24

3:15 pm-11:56 pm

2 stops11h 41m

San Diego

Wed 4/29

9:28 am-12:25 am

2 stops11h 57m

$378

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 Maine to San Diego

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

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of September, then departing from Maine during the month January is also very affordable. Most momondo users find prices during this month for around $424.

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $513 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Maine for as low as $375 on momondo.

Cheap Maine to San Diego flight deals and tips

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

Fastest flight time	6h 05m
Direct flights	Every day
Airports in San Diego	1 airport

The fastest flight from Maine to San Diego takes 6h 05m

Direct flights go from Maine to San Diego every day.

There is 1 airport in San Diego. From Maine there are direct flights to San Diego (SAN).

Search flight deals

When did momondo last update prices for flights from Maine to San Diego Airport?
Prices for flights from Maine to San Diego Airport refresh daily.
How many operators does momondo search for flights from Maine to San Diego Airport?
There are 8 operators available for flights from Maine to San Diego Airport as of April 2026.
How old do you have to be to fly from Maine to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maine to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Maine to San Diego

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $243	Free Cancellation	Rating 7.9 8,368 reviews	Search Delta flights
American Airlines	PriceFrom $318	Free Cancellation	Rating 7.1 11,544 reviews	Search American Airlines flights
Southwest	PriceFrom $325	Free Cancellation	Rating 8.0 4,335 reviews	Search Southwest flights
United Airlines	PriceFrom $350	Free Cancellation	Rating 7.4 9,529 reviews	Search United Airlines flights

Coronado

Chula Vista

El Cajon

Julian

National City

Poway

San Ysidro

La Mesa

Imperial Beach

Borrego Springs

Alpine

Santee

Lemon Grove

Why use momondo?

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

It is quick and easy to find Maine to San Diego 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 San Diego that suits you.

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

Flights from Maine to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Maine to San Diego.

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

Yes momondo offers price alerts on flights to San Diego from Maine. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Maine to San Diego from $137

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to San Diego departing on 4/27. 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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How to get the cheapest flight ticket from Maine to San Diego

What is the cheapest month to fly to San Diego?

How far in advance should I book a flight to San Diego?

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

What airlines fly to San Diego?

How many flights depart from Maine to San Diego on average per week?

How long does it take to fly to San Diego?

Cheap Maine to San Diego flight deals and tips

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Why use momondo?

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in San Diego. Availability may vary depending on flight origin and airline.

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