$122 Find Cheap Flights from San Diego to Maine

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Maine departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Maine

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Maine, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Maine, as well as popular online travel agencies
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Cheap Flights from San Diego to Maine

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Portland
Portland2 stops$315
Bangor
Bangor2 stops$394
Bar Harbor
Bar Harbor1 stop$449
Boston
Bostonnonstop$233
Portland
Portland2 stops$315
Bangor
Bangor2 stops$394
Bar Harbor
Bar Harbor1 stop$449
Boston
Bostonnonstop$233

Book Cheap San Diego to Maine Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Maine that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Maine

Fri, Feb 6 - Sun, Feb 8
JetBlue Logo
9:40 pm - 6:05 am
SAN
-
BOS
5h 25mnonstop
JetBlue Logo
4:54 pm - 8:30 pm
BOS
-
SAN
6h 36mnonstop
$233JetBlue
Sun, Mar 8 - Sun, Mar 15
JetBlue Logo
8:44 pm - 5:00 am
SAN
-
BOS
5h 16mnonstop
JetBlue Logo
6:30 am - 10:01 am
BOS
-
SAN
6h 31mnonstop
$234JetBlue
Wed, Feb 4 - Fri, Feb 20
Delta Logo
10:04 pm - 6:30 am
SAN
-
BOS
5h 26mnonstop
Delta Logo
5:05 pm - 8:45 pm
BOS
-
SAN
6h 40mnonstop
$237Delta
Tue, Feb 24 - Sat, Feb 28
Alaska Airlines Logo
6:15 am - 11:59 pm
SAN
-
BOS
14h 44m
1 stop
Alaska Airlines Logo
5:44 pm - 9:29 pm
BOS
-
SAN
6h 45mnonstop
$239Alaska Airlines
Wed, Feb 18 - Sun, Feb 22
Alaska Airlines Logo
8:26 pm - 4:36 pm
SAN
-
BOS
17h 10m
1 stop
Alaska Airlines Logo
5:44 pm - 9:29 pm
BOS
-
SAN
6h 45mnonstop
$242Alaska Airlines
Wed, Feb 18 - Wed, Feb 25
Delta Logo
7:20 am - 12:18 am
SAN
-
PWM
13h 58m
2 stops
Delta Logo
12:13 pm - 10:20 pm
PWM
-
SAN
13h 07m
2 stops
$315Delta
Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
11:56 am - 10:30 pm
SAN
-
PWM
7h 34m
1 stop
American Airlines Logo
12:29 pm - 7:24 pm
PWM
-
SAN
9h 55m
1 stop
$335American Airlines
Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
11:56 am - 10:30 pm
SAN
-
PWM
7h 34m
1 stop
American Airlines Logo
12:29 pm - 10:34 pm
PWM
-
SAN
13h 05m
2 stops
$340American Airlines
Fri, Feb 27 - Tue, Mar 3
United Airlines Logo
10:15 pm - 1:24 pm
SAN
-
PWM
12h 09m
2 stops
United Airlines Logo
4:15 pm - 10:44 pm
PWM
-
SAN
9h 29m
1 stop
$352United Airlines
Wed, Mar 4 - Mon, Mar 9
Southwest Logo
9:40 am - 10:15 pm
SAN
-
PWM
9h 35m
2 stops
Southwest Logo
12:35 pm - 6:45 pm
PWM
-
SAN
9h 10m
1 stop
$359Southwest
Booking Insights

KAYAK's insights & trends for San Diego to Maine flights

Get data-powered insights and trends into flights from San Diego to Maine to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Diego to Maine?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Maine, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Maine is October, when tickets cost $353 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $703 and $679 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Maine, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Maine, you should book around 4 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$122
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 30% lower on average.
Flight from San Diego to Boston

FAQs - booking Maine flights

  • How does KAYAK find such low prices on flights from San Diego to Maine?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Maine.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Maine?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Diego to Maine is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Maine?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Diego to Maine with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Maine?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Diego to Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from San Diego to Maine

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Maine. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Maine? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4266 reviews
8.1Boarding
7.0Food
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

Great flight but super high price. Glad it was a business trip and not personal

10.0 ExcellentPieter, Jan 2026
LGB - DAL
Read more Southwest reviews

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

Everything you need to know for your flight from San Diego to Maine

Information on your arrival and departure airports