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New Hampshire

$120+ Cheap flights from San Diego (SAN) to New Hampshire

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — MHT
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from San Diego to New Hampshire

Cheapest flights from San Diego to New Hampshire
Explore the most affordable flight options available from San Diego to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Sun 1/114:20 pmBOS - SAN
Nonstop6h 40mAlaska Airlines
Deal found 12/21$410
This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:30 pmSAN - BOS
2 stops14h 05mUnited Airlines
Sun 1/116:00 amBOS - SAN
1 stop8h 48mUnited Airlines
Deal found 12/21$430
This JetBlue deal was found by Cheapflights users on 12/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:44 pmSAN - BOS
Nonstop5h 25mJetBlue
Sun 1/2512:15 pmBOS - SAN
1 stop10h 35mJetBlue
Deal found 12/21$453
This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:45 pmSAN - BOS
2 stops16h 58mUnited Airlines
Sun 1/257:25 amBOS - SAN
1 stop10h 39mUnited Airlines
Deal found 12/21$460
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Sun 1/46:30 amBOS - SAN
Nonstop6h 30mAlaska Airlines
Deal found 12/21$470
This Delta deal was found by Cheapflights users on 12/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:55 pmSAN - BOS
1 stop7h 14mDelta
Sun 1/45:20 pmBOS - SAN
Nonstop6h 34mDelta
Deal found 12/21$505
This JetBlue deal was found by Cheapflights users on 12/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:27 amSAN - BOS
1 stop9h 49mJetBlue
Tue 1/134:44 pmBOS - SAN
Nonstop6h 36mJetBlue
Deal found 12/22$511
This Alaska Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/228:27 pmSAN - BOS
Nonstop5h 43mAlaska Airlines
Tue 1/134:20 pmBOS - SAN
Nonstop6h 40mAlaska Airlines
Deal found 12/22$522
This Southwest deal was found by Cheapflights users on 12/20. 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 12/289:45 pmSAN - BOS
1 stop10h 15mSouthwest
Sun 1/46:15 amBOS - SAN
1 stop10h 05mSouthwest
Deal found 12/20$530
This American Airlines deal was found by Cheapflights users on 12/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:45 pmSAN - ORH
1 stop11h 32mAmerican Airlines
Tue 1/132:18 pmORH - SAN
1 stop24h 14mAmerican Airlines
Deal found 12/22$537
This American Airlines deal was found by Cheapflights users on 12/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:45 pmSAN - ORH
1 stop11h 32mAmerican Airlines
Wed 12/3112:19 pmORH - SAN
2 stops33h 18mAmerican Airlines
Deal found 12/21$632
This Southwest deal was found by Cheapflights users on 12/20. 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 12/288:15 pmSAN - PWM
2 stops11h 55mSouthwest
Sun 1/45:30 amPWM - SAN
1 stop10h 00mSouthwest
Deal found 12/20$777

Find flight deals from San Diego to New Hampshire

Keep the following information in mind while searching for San Diego to New Hampshire flight deals. Data was last updated December 23, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$215
(Kiwi.com)

One-way from

$120
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$477
Provider with most accurate pricing for San Diego-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Boston Logan Intl flights.
Search Deals
From San Diego to New Hampshire
Search Deals
One-way flight from San Diego to New Hampshire
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to New Hampshire 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 December 23, 2025.
Use the filters below to find and compare flights from San Diego to New Hampshire that are best for you.

Fly from

San Diego

Fly to

New Hampshire

Route

Depart

Return

Price

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 2/10

3:15 pm-11:38 pm

Nonstop5h 23m

Boston Logan Intl

Wed 2/18

4:00 pm-7:28 pm

Nonstop6h 28m

$217

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 2/3

9:10 am-5:39 pm

Nonstop5h 29m

Boston Logan Intl

Fri 2/6

4:20 pm-8:00 pm

Nonstop6h 40m

$227

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 1/15

10:04 pm-6:30 am

Nonstop5h 26m

Boston Logan Intl

Tue 1/20

5:10 pm-8:50 pm

Nonstop6h 40m

$227

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 2/3

9:37 am-11:54 pm

1 stop11h 17m

Boston Logan Intl

Tue 2/10

4:20 pm-8:00 pm

Nonstop6h 40m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 2/4

9:10 am-5:39 pm

Nonstop5h 29m

Boston Logan Intl

Mon 2/9

6:44 pm-10:07 am

1 stop18h 23m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 2/3

6:30 am-6:57 pm

2 stops9h 27m

Boston Logan Intl

Tue 2/10

7:25 am-12:59 pm

1 stop8h 34m

$242

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 1/7

3:15 pm-11:39 pm

Nonstop5h 24m

Boston Logan Intl

Sat 1/10

4:05 pm-7:33 pm

Nonstop6h 28m

$247

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 1/8

9:05 pm-5:30 am

Nonstop5h 25m

Boston Logan Intl

Sun 1/11

4:25 pm-7:54 pm

Nonstop6h 29m

$247

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 1/7

9:30 pm-5:55 am

Nonstop5h 25m

Boston Logan Intl

Sun 1/11

4:25 pm-7:54 pm

Nonstop6h 29m

$247

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 1/13

9:00 pm-7:57 am

1 stop7h 57m

Boston Logan Intl

Wed 1/21

4:44 pm-8:20 pm

Nonstop6h 36m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 53 results
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Best time to book a flight from San Diego to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from San Diego 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 San Diego to New Hampshire
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing New Hampshire

Get insights into the airlines that provide service to New Hampshire. 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 New Hampshire. Reviews last updated December 23, 2025.
See what other customers who have flown with Southwest and American Airlines from San Diego to New Hampshire have to say. 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
8.0
Very good
4,253 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,054 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from San Diego to New Hampshire. 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 from for flights from San Diego to New Hampshire?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly out of when you book flights from San Diego to New Hampshire.

  • How long is the flight from San Diego to New Hampshire?

    For as low as $217, JetBlue can have you in New Hampshire from San Diego in 5h 23m. Airlines will cover a distance of 2581 mi. All flights are typically nonstop.

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

    Most travelers choose San Diego - Boston Logan Intl, San Diego - Manchester or San Diego - Portland when deciding on the best route from San Diego to New Hampshire.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to New Hampshire by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for San Diego to New Hampshire

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Top 2 airlines flying from San Diego to New Hampshire

Discover the top 2 airlines that operate flights from San Diego to New Hampshire. 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$286Average$422FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$286Average$379FlexibilityNo cancel feeOn-time71%

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