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San Diego

$141+ Cheap flights from New Hampshire 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheap flight deals from New Hampshire to San Diego

Cheapest flights from New Hampshire to San Diego
Explore the most affordable flight options available from New Hampshire to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.

This flygcity.se deal was found by Cheapflights users on 7/26. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:05 am
BOS
-
SAN
Nonstop6h 05m
JetBlue
Mon 8/241:06 pm
SAN
-
BOS
Nonstop5h 45m
JetBlue
Deal found 7/26$239
This Super.com deal was found by Cheapflights users on 7/24. 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 8/184:20 pm
BOS
-
SAN
Nonstop6h 09m
JetBlue
Tue 8/258:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Deal found 7/24$249
This Super.com deal was found by Cheapflights users on 7/25. 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 8/224:20 pm
BOS
-
SAN
Nonstop6h 09m
JetBlue
Sat 8/298:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Deal found 7/25$250
This JetBlue deal was found by Cheapflights users on 7/26. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:30 am
BOS
-
SAN
Nonstop6h 35m
JetBlue
Mon 11/161:45 pm
SAN
-
BOS
Nonstop5h 22m
JetBlue
Deal found 7/26$252
This Trip.com deal was found by Cheapflights users on 7/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:00 am
BOS
-
SAN
Nonstop6h 12m
Alaska Airlines
Fri 9/118:59 pm
SAN
-
BOS
Nonstop5h 48m
Alaska Airlines
Deal found 7/22$253
This Super.com deal was found by Cheapflights users on 7/24. 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.
Thu 9/109:30 am
BOS
-
SAN
Nonstop6h 04m
JetBlue
Mon 9/148:20 pm
SAN
-
BOS
Nonstop5h 55m
JetBlue
Deal found 7/24$254
This Super.com deal was found by Cheapflights users on 7/26. 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 8/184:20 pm
BOS
-
SAN
Nonstop6h 09m
JetBlue
Wed 8/2610:20 am
SAN
-
BOS
Nonstop5h 47m
JetBlue
Deal found 7/26$255
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:17 pm
BOS
-
SAN
Nonstop6h 13m
Alaska Airlines
Mon 8/248:59 pm
SAN
-
BOS
Nonstop5h 50m
Alaska Airlines
Deal found 7/22$257
This JetBlue deal was found by Cheapflights users on 7/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:20 pm
BOS
-
SAN
Nonstop6h 09m
JetBlue
Wed 8/2610:20 am
SAN
-
BOS
Nonstop5h 47m
JetBlue
Deal found 7/24$258
This Super.com deal was found by Cheapflights users on 7/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am
BOS
-
SAN
Nonstop6h 05m
JetBlue
Fri 9/118:20 pm
SAN
-
BOS
Nonstop5h 55m
JetBlue
Deal found 7/23$260
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:17 pm
BOS
-
SAN
Nonstop6h 13m
Alaska Airlines
Mon 8/318:59 pm
SAN
-
BOS
Nonstop5h 50m
Alaska Airlines
Deal found 7/23$262
This Expedia deal was found by Cheapflights users on 7/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:30 am
BOS
-
SAN
Nonstop6h 35m
Multiple Airlines
Sat 10/318:37 pm
SAN
-
BOS
Nonstop5h 47m
Multiple Airlines
Deal found 7/23$264

Find flight deals from New Hampshire to San Diego

Keep the following information in mind while searching for New Hampshire to San Diego flight deals. Data was last updated July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$239
(flygcity.se)

One-way from

$141
(Super.com)

Popular in

December

Cheapest in

January

Average price

$370
Provider with most accurate pricing for Boston Logan Intl-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-San Diego flights.
Search Deals
From New Hampshire to San Diego
Search Deals
One-way flight from New Hampshire to San Diego
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Hampshire 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 July 27, 2026.
Use the filters below to find and compare flights from New Hampshire to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 10/2

5:10 pm-8:15 pm

Nonstop6h 05m

San Diego

Mon 10/5

10:04 pm-6:40 am

Nonstop5h 36m

$262

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 11/4

8:20 am-11:45 am

Nonstop6h 25m

San Diego

Wed 11/11

6:30 am-4:25 pm

1 stop6h 55m

$267

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 11/11

4:55 pm-10:30 pm

1 stop8h 35m

San Diego

Wed 11/18

2:08 pm-1:06 am

1 stop7h 58m

$272

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 9/23

5:01 pm-10:10 pm

1 stop8h 09m

San Diego

Sun 9/27

10:20 pm-9:44 am

1 stop8h 24m

$282

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 9/22

10:50 am-4:15 pm

1 stop8h 25m

San Diego

Tue 9/29

9:35 am-9:25 pm

2 stops8h 50m

$312

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 9/16

7:30 am-2:40 pm

2 stops10h 10m

San Diego

Mon 9/21

10:40 pm-9:55 am

1 stop8h 15m

$312

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 8/28

5:42 pm-5:36 pm

1 stop26h 54m

San Diego

Mon 8/31

8:59 pm-5:49 am

Nonstop5h 50m

$330

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 8/18

5:25 am-12:15 pm

2 stops9h 50m

San Diego

Tue 8/25

10:40 pm-9:55 am

1 stop8h 15m

$332

PortlandSan Diego

PWM - SAN

PWMSAN

Portland

Wed 10/28

5:40 am-12:45 pm

1 stop10h 05m

San Diego

Wed 11/4

9:55 pm-10:30 am

1 stop9h 35m

$333

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 10/9

6:35 am-9:52 am

Nonstop6h 17m

San Diego

Sat 10/17

9:45 pm-6:32 am

Nonstop5h 47m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

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

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

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

Currently, January is the cheapest month in which you can book a flight from New Hampshire to San Diego (average of $412). Flying from New Hampshire to San Diego in June is currently the most expensive (average of $577). 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.

Related info for your journey

Find useful and relevant information for your journey from New Hampshire 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 New Hampshire?

    If you book a flight to San Diego from New Hampshire, 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 New Hampshire to San Diego?

    Departing from New Hampshire to San Diego will take you 6h 05m. The distance from New Hampshire to San Diego is about 2581 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular flight routes from New Hampshire to San Diego are Boston Logan Intl - San Diego, Portland - San Diego and Manchester - San Diego.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from New Hampshire 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 New Hampshire to San Diego?

    Currently, January is the cheapest month in which you can book a flight from New Hampshire to San Diego (average of $412). Flying from New Hampshire to San Diego in June is currently the most expensive (average of $577). 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
La Mesa
Coronado
Santee
San Ysidro
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for New Hampshire to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from New Hampshire to San Diego

Discover the top 2 airlines that operate flights from New Hampshire 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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$305Average$466FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$377Average$481FlexibilityNo cancel feeOn-time63%

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