$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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
Apr 5 — Apr 121
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 March 31, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $196 (Expedia) |
One-way from | $119 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $382 |
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 March 31, 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 March 31, 2025.
This Expedia deal was found by Cheapflights users on 3/30. 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.
Fri 5/99:46 amBOS - SAN
2 stops11h 17mSpirit Airlines
Tue 5/138:48 pmSAN - BOS
2 stops16h 36mSpirit Airlines
Deal found 3/30![Spirit Airlines logo]()
$196
This Travelocity deal was found by Cheapflights users on 3/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/64:34 pmBOS - SAN
Nonstop6h 31mMultiple Airlines
Tue 5/138:48 pmSAN - BOS
2 stops16h 36mMultiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$225
This Hawaiian Airlines deal was found by Cheapflights users on 3/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/174:49 pmBOS - SAN
Nonstop6h 23mHawaiian Airlines
Wed 5/2110:45 pmSAN - BOS
Nonstop5h 55mHawaiian Airlines
Deal found 3/30![Hawaiian Airlines logo]()
$237
This Aunt Betty deal was found by Cheapflights users on 3/30. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/144:34 pmBOS - SAN
Nonstop6h 31mAlaska Airlines
Wed 5/2110:45 pmSAN - BOS
Nonstop5h 55mAlaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$238
This Delta deal was found by Cheapflights users on 3/31. 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 5/38:00 amBOS - SAN
Nonstop6h 22mDelta
Thu 5/89:44 pmSAN - BOS
Nonstop5h 36mDelta
Deal found 3/31![Delta logo]()
$257
This JetBlue Airways deal was found by Cheapflights users on 3/31. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/297:00 amBOS - SAN
Nonstop6h 24mJetBlue
Fri 6/68:27 pmSAN - BOS
Nonstop5h 40mJetBlue
Deal found 3/31![JetBlue logo]()
$277
This Southwest deal was found by Cheapflights users on 3/30. 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.
Thu 5/13:30 pmBOS - SAN
1 stop10h 40mSouthwest
Sun 5/49:45 pmSAN - BOS
1 stop7h 05mSouthwest
Deal found 3/30![Southwest logo]()
$307
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/234:01 pmPWM - SAN
1 stop8h 43mAmerican Airlines
Tue 5/2710:39 pmSAN - PWM
1 stop9h 53mAmerican Airlines
Deal found 3/31![American Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 3/31. 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 6/115:00 pmPWM - SAN
1 stop8h 38mDelta
Mon 6/167:34 pmSAN - PWM
2 stops12h 05mDelta
Deal found 3/31![Delta logo]()
$342
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/1612:25 pmMHT - SAN
1 stop9h 51mAmerican Airlines
Wed 5/2810:19 amSAN - MHT
1 stop9h 03mAmerican Airlines
Deal found 3/31![American Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 3/31. 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 8/85:19 pmBOS - SAN
1 stop7h 48mAmerican Airlines
Mon 8/119:25 pmSAN - BOS
1 stop8h 51mAmerican Airlines
Deal found 3/31![American Airlines logo]()
$363
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/196:30 amBOS - SAN
1 stop13h 48mSun Country Air
Fri 4/255:35 pmSAN - BOS
1 stop14h 00mSun Country Air
Deal found 3/31![Sun Country Air logo]()
$373
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 March 31, 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
Fri 5/9
9:46 am-6:03 pm
2 stops11h 17m
San Diego
Tue 5/13
8:48 pm-4:24 pm
2 stops16h 36m
$196
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Tue 5/6
4:34 pm-8:05 pm
Nonstop6h 31m
San Diego
Tue 5/13
8:48 pm-4:24 pm
2 stops16h 36m
$225
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 5/17
4:49 pm-8:12 pm
Nonstop6h 23m
San Diego
Wed 5/21
10:45 pm-7:40 am
Nonstop5h 55m
$237
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 5/14
4:34 pm-8:05 pm
Nonstop6h 31m
San Diego
Wed 5/21
10:45 pm-7:40 am
Nonstop5h 55m
$238
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 5/3
8:00 am-11:22 am
Nonstop6h 22m
San Diego
Thu 5/8
9:44 pm-6:20 am
Nonstop5h 36m
$257
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/29
7:00 am-10:24 am
Nonstop6h 24m
San Diego
Fri 6/6
8:27 pm-5:07 am
Nonstop5h 40m
$277
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/1
3:30 pm-11:10 pm
1 stop10h 40m
San Diego
Sun 5/4
9:45 pm-7:50 am
1 stop7h 05m
$307
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Fri 4/25
8:15 am-3:58 pm
1 stop10h 43m
San Diego
Fri 4/25
7:30 pm-5:47 am
1 stop7h 17m
$336
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Fri 5/23
4:01 pm-9:44 pm
1 stop8h 43m
San Diego
Tue 5/27
10:39 pm-11:32 am
1 stop9h 53m
$337
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Wed 6/11
5:00 pm-10:38 pm
1 stop8h 38m
San Diego
Mon 6/16
7:34 pm-10:39 am
2 stops12h 05m
$342
Showing 1-10 of 45 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 March 31, 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 March 31, 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
Comfort
8.2
Crew
8.8
Boarding
8.3
Entertainment
6.6
Food
6.7
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Comfort
8.2
Crew
8.8
Boarding
8.3
Entertainment
6.6
Food
6.7
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Comfort
8.2
Crew
8.8
Boarding
8.3
Entertainment
6.6
Food
6.7
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Comfort
8.2
Crew
8.8
Boarding
8.3
Entertainment
6.6
Food
6.7
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Comfort
8.2
Crew
8.8
Boarding
8.3
Entertainment
6.6
Food
6.7
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Comfort
8.2
Crew
8.8
Boarding
8.3
Entertainment
6.6
Food
6.7
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
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.
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 March 31, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$331 | Average$494 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$364 | Average$546 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$379 | Average$500 | FlexibilityNo cancel fee | On-time63% |