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$118+ 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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$193
(FlightHub)

One-way from

$118
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$371
Provider with most accurate pricing for Boston Logan Intl-San Diego flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-San Diego flights.
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From New Hampshire to San Diego
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One-way flight from New Hampshire to San Diego
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 February 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/98:59 amBOS - SAN
2 stops18h 43mSpirit Airlines
Mon 4/149:08 pmSAN - BOS
2 stops12h 50mSpirit Airlines
Deal found 2/20$193
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:49 pmBOS - SAN
Nonstop6h 47mMultiple Airlines
Mon 4/78:07 pmSAN - BOS
2 stops18h 07mMultiple Airlines
Deal found 2/20$218
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/295:10 pmBOS - SAN
Nonstop6h 33mDelta
Sat 4/510:00 pmSAN - BOS
Nonstop5h 27mDelta
Deal found 2/20$237
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/77:59 pmBOS - SAN
1 stop16h 12mAlaska Airlines
Tue 4/1510:11 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Deal found 2/20$240
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/27:43 amBOS - SAN
1 stop9h 13mUnited Airlines
Mon 4/1412:45 pmSAN - BOS
1 stop8h 14mUnited Airlines
Deal found 2/19$273
This JetBlue deal was found by Cheapflights users on 2/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1512:58 pmBOS - SAN
1 stop10h 29mJetBlue
Wed 3/268:27 pmSAN - BOS
Nonstop5h 13mJetBlue
Deal found 2/20$292
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1410:57 amBOS - SAN
1 stop11h 20mAmerican Airlines
Mon 3/177:30 pmSAN - BOS
1 stop7h 37mAmerican Airlines
Deal found 2/20$297
This Southwest deal was found by Cheapflights users on 2/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/69:55 pmBOS - SAN
1 stop14h 15mSouthwest
Tue 4/89:35 amSAN - BOS
1 stop10h 35mSouthwest
Deal found 2/20$313
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1012:21 pmPWM - SAN
2 stops22h 09mMultiple Airlines
Tue 3/115:39 pmSAN - PWM
3 stops22h 48mMultiple Airlines
Deal found 2/19$316
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:15 amPWM - SAN
1 stop10h 28mUnited Airlines
Tue 4/158:05 amSAN - PWM
1 stop8h 39mUnited Airlines
Deal found 2/19$317
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 4/112:55 pmPWM - SAN
2 stops12h 16mAmerican Airlines
Tue 4/1511:04 amSAN - PWM
2 stops9h 50mAmerican Airlines
Deal found 2/19$327
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/223:57 pmMHT - SAN
1 stop9h 10mAmerican Airlines
Tue 4/291:41 pmSAN - MHT
1 stop8h 05mAmerican Airlines
Deal found 2/20$337

Find flights from New Hampshire to San Diego within your budget

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 February 20, 2025.

Fly from

New Hampshire

Fly to

San Diego

Route

Depart

Return

Price

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 4/9

8:59 am-12:42 am

2 stops18h 43m

San Diego

Mon 4/14

9:08 pm-12:58 pm

2 stops12h 50m

$193

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 4/2

4:49 pm-8:36 pm

Nonstop6h 47m

San Diego

Mon 4/7

8:07 pm-5:14 pm

2 stops18h 07m

$218

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/29

5:10 pm-8:43 pm

Nonstop6h 33m

San Diego

Sat 4/5

10:00 pm-6:27 am

Nonstop5h 27m

$237

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Mon 4/7

7:59 pm-9:11 am

1 stop16h 12m

San Diego

Tue 4/15

10:11 am-6:59 pm

Nonstop5h 48m

$240

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 4/2

7:43 am-1:56 pm

1 stop9h 13m

San Diego

Mon 4/14

12:45 pm-11:59 pm

1 stop8h 14m

$273

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/15

12:58 pm-8:27 pm

1 stop10h 29m

San Diego

Thu 3/20

8:27 pm-4:40 am

Nonstop5h 13m

$292

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 3/14

10:57 am-7:17 pm

1 stop11h 20m

San Diego

Sun 3/16

10:45 pm-10:37 am

1 stop8h 52m

$297

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sun 4/6

9:55 pm-9:10 am

1 stop14h 15m

San Diego

Tue 4/8

9:35 am-11:10 pm

1 stop10h 35m

$313

PortlandSan Diego

PWM - SAN

PWMSAN

Portland

Mon 3/10

12:21 pm-7:30 am

2 stops22h 09m

San Diego

Tue 3/11

5:39 pm-7:27 pm

3 stops22h 48m

$316

PortlandSan Diego

PWM - SAN

PWMSAN

Portland

Tue 4/1

6:15 am-1:43 pm

1 stop10h 28m

San Diego

Tue 4/15

8:05 am-7:44 pm

1 stop8h 39m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 41 results
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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.

Travel insights for flights from New Hampshire to San Diego

Get recent, data-driven insights about flights from New Hampshire to San Diego including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from New Hampshire to San Diego (average of $286). Flying from New Hampshire to San Diego in March is currently the most expensive (average of $366). 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.

What is the cheapest time of day to fly from NH to SAN?

Find hourly flight availability from New Hampshire to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from New Hampshire to San Diego as you normally would.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Breeze Airways and Alaska Airlines from New Hampshire to San Diego to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Breeze Airways
8.1
Very good
150 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $118. Users have also found prices from $119 and $127 on JetBlue and Alaska Airlines, respectively.

  • 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, Manchester - San Diego and Portland - 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, August is the cheapest month in which you can book a flight from New Hampshire to San Diego (average of $286). Flying from New Hampshire to San Diego in March is currently the most expensive (average of $366). 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 New Hampshire?

Book flights to New Hampshire if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado
Borrego Springs

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$331Average$511FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$376Average$500FlexibilityNo cancel feeOn-time63%
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