$119+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
Apr 30 — May 71
1 adult, Economy
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Find cheap flights from New Hampshire to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 April 25, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $208 (FlightHub) |
One-way from | $119 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $446 |
Find flight deals from New Hampshire to San Diego
Cheapest flights from New Hampshire to San DiegoExplore 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 April 25, 2025.
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 April 25, 2025.
This FlightHub deal was found by Cheapflights users on 4/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/310:04 amBOS - SAN
2 stops16h 52mSpirit Airlines
Wed 6/48:48 pmSAN - BOS
2 stops16h 36mSpirit Airlines
Deal found 4/25![Spirit Airlines logo]()
$208
This Expedia deal was found by Cheapflights users on 4/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/299:46 amBOS - SAN
2 stops24h 27mMultiple Airlines
Mon 6/210:45 pmSAN - BOS
Nonstop5h 55mMultiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$225
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/284:49 pmBOS - SAN
Nonstop6h 23mAlaska Airlines
Wed 5/2810:45 pmSAN - BOS
Nonstop5h 55mAlaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/175:10 pmBOS - SAN
Nonstop6h 19mDelta
Sat 5/249:44 pmSAN - BOS
Nonstop5h 36mDelta
Deal found 4/24![Delta logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/48:40 amBOS - SAN
Nonstop6h 21mHawaiian Airlines
Sat 6/74:00 pmSAN - BOS
1 stop11h 10mHawaiian Airlines
Deal found 4/25![Hawaiian Airlines logo]()
$241
This American Airlines deal was found by Cheapflights users on 4/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/242:26 pmBOS - SAN
1 stop10h 18mAmerican Airlines
Mon 5/2610:45 pmSAN - BOS
1 stop8h 16mAmerican Airlines
Deal found 4/24![American Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 4/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2912:25 pmMHT - SAN
1 stop9h 51mAmerican Airlines
Tue 6/310:39 pmSAN - MHT
1 stop10h 12mAmerican Airlines
Deal found 4/24![American Airlines logo]()
$287
This JetBlue deal was found by Cheapflights users on 4/25. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/243:55 pmBOS - SAN
Nonstop6h 20mJetBlue
Mon 5/268:25 pmSAN - BOS
Nonstop5h 47mJetBlue
Deal found 4/25![JetBlue logo]()
$288
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/201:12 pmPWM - SAN
1 stop8h 44mAmerican Airlines
Sat 5/2411:58 amSAN - PWM
1 stop8h 08mAmerican Airlines
Deal found 4/25![American Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/116:30 amPWM - SAN
1 stop8h 20mDelta
Mon 6/1610:30 pmSAN - PWM
1 stop10h 20mDelta
Deal found 4/25![Delta logo]()
$332
This Southwest deal was found by Cheapflights users on 4/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/173:50 pmMHT - SAN
1 stop8h 55mSouthwest
Thu 9/259:10 pmSAN - MHT
1 stop8h 25mSouthwest
Deal found 4/24![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/173:05 pmBOS - SAN
1 stop10h 09mUnited Airlines
Sat 5/2412:45 pmSAN - BOS
1 stop8h 14mUnited Airlines
Deal found 4/24![United Airlines logo]()
$346
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 April 25, 2025.
Use the filters below to find and compare flights from New Hampshire to San Diego that are best for you.
Fly from
New Hampshire
Fly to
San Diego
Route
Depart
Return
Price
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Tue 6/3
10:04 am-11:56 pm
2 stops16h 52m
San Diego
Wed 6/4
8:48 pm-4:24 pm
2 stops16h 36m
$208
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/29
9:46 am-7:13 am
2 stops24h 27m
San Diego
Mon 6/2
10:45 pm-7:40 am
Nonstop5h 55m
$225
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 5/28
4:49 pm-8:12 pm
Nonstop6h 23m
San Diego
Wed 5/28
10:45 pm-7:40 am
Nonstop5h 55m
$231
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 5/17
5:10 pm-8:29 pm
Nonstop6h 19m
San Diego
Sat 5/24
9:44 pm-6:20 am
Nonstop5h 36m
$236
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 6/4
8:40 am-12:01 pm
Nonstop6h 21m
San Diego
Sat 6/7
4:00 pm-6:10 am
1 stop11h 10m
$241
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 5/24
2:26 pm-9:44 pm
1 stop10h 18m
San Diego
Mon 5/26
10:45 pm-10:01 am
1 stop8h 16m
$275
ManchesterSan Diego
MHT - SAN
MHTSAN
Manchester
Thu 5/29
12:25 pm-7:16 pm
1 stop9h 51m
San Diego
Tue 6/3
10:39 pm-11:51 am
1 stop10h 12m
$287
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 5/24
3:55 pm-7:15 pm
Nonstop6h 20m
San Diego
Mon 5/26
8:25 pm-5:12 am
Nonstop5h 47m
$288
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Tue 5/20
1:12 pm-6:56 pm
1 stop8h 44m
San Diego
Sat 5/24
11:58 am-11:06 pm
1 stop8h 08m
$313
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Wed 6/11
6:30 am-11:50 am
1 stop8h 20m
San Diego
Mon 6/16
10:30 pm-11:50 am
1 stop10h 20m
$332
Showing 1-10 of 41 results
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, 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 April 25, 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 April 25, 2025.
Peruse reviews from past customers who have flown with Breeze Airways, Alaska Airlines and Southwest 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.
Overall
8.1
Entertainment
6.6
Food
6.7
Boarding
8.3
Comfort
8.2
Crew
8.8
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Entertainment
6.6
Food
6.7
Boarding
8.3
Comfort
8.2
Crew
8.8
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Entertainment
6.6
Food
6.7
Boarding
8.3
Comfort
8.2
Crew
8.8
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Entertainment
6.6
Food
6.7
Boarding
8.3
Comfort
8.2
Crew
8.8
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Entertainment
6.6
Food
6.7
Boarding
8.3
Comfort
8.2
Crew
8.8
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Entertainment
6.6
Food
6.7
Boarding
8.3
Comfort
8.2
Crew
8.8
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
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.
Traveling to a place near New Hampshire?
Book flights to New Hampshire if you plan to visit one of these locationsEl Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado
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.
Top 3 airlines flying from New Hampshire to San Diego
Discover the top 3 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 April 25, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$331 | Average$484 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$364 | Average$546 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$376 | Average$499 | FlexibilityNo cancel fee | On-time63% |