$144+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
Jul 8 — Jul 151
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 July 3, 2025.
Round-trip from | $252 (United Airlines) |
|---|---|
One-way from | $144 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $407 |
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 July 3, 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 July 3, 2025.
This United Airlines deal was found by Cheapflights users on 7/2. 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 8/205:05 pmBOS - SAN
1 stop8h 09mUnited Airlines
Wed 8/2712:35 pmSAN - BOS
1 stop8h 22mUnited Airlines
Deal found 7/2![United Airlines logo]()
$252
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Fri 7/1812:26 pmBOS - SAN
2 stops24h 29mSpirit Airlines
Tue 7/227:00 pmSAN - BOS
3 stops21h 30mSpirit Airlines
Deal found 7/1![Spirit Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 7/3. 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 8/235:35 pmBOS - SAN
Nonstop6h 17mDelta
Sun 8/3110:05 pmSAN - BOS
Nonstop5h 44mDelta
Deal found 7/3![Delta logo]()
$257
This American Airlines deal was found by Cheapflights users on 7/1. 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 8/238:29 amBOS - SAN
1 stop8h 06mAmerican Airlines
Sat 8/306:15 amSAN - BOS
1 stop8h 00mAmerican Airlines
Deal found 7/1![American Airlines logo]()
$258
This Southwest deal was found by Cheapflights users on 7/1. 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.
Sat 8/165:35 amBOS - SAN
1 stop7h 40mSouthwest
Sat 8/238:15 amSAN - BOS
2 stops11h 00mSouthwest
Deal found 7/1![Southwest logo]()
$262
This Orbitz deal was found by Cheapflights users on 7/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:45 pmBOS - SAN
Nonstop6h 15mMultiple Airlines
Thu 8/147:04 pmSAN - BOS
2 stops11h 24mMultiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$263
This Hawaiian Airlines deal was found by Cheapflights users on 7/3. 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.
Wed 9/37:20 amBOS - SAN
1 stop12h 14mHawaiian Airlines
Sun 9/79:35 pmSAN - BOS
Nonstop5h 50mHawaiian Airlines
Deal found 7/3![Hawaiian Airlines logo]()
$267
This JetBlue deal was found by Cheapflights users on 7/3. 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 9/242:17 pmPWM - SAN
1 stop8h 13mJetBlue
Mon 10/610:10 amSAN - PWM
1 stop8h 52mJetBlue
Deal found 7/3![JetBlue logo]()
$287
This American Airlines deal was found by Cheapflights users on 7/2. 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 10/47:03 amMHT - SAN
1 stop8h 24mAmerican Airlines
Wed 10/81:12 pmSAN - MHT
1 stop7h 44mAmerican Airlines
Deal found 7/2![American Airlines logo]()
$287
This Netflights deal was found by Cheapflights users on 7/2. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/175:45 pmBOS - SAN
Nonstop6h 15mAlaska Airlines
Tue 7/228:40 amSAN - BOS
Nonstop5h 47mAlaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$294
This JetBlue deal was found by Cheapflights users on 7/3. 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.
Tue 8/57:00 amBOS - SAN
Nonstop6h 04mJetBlue
Fri 8/89:00 pmSAN - BOS
Nonstop5h 40mJetBlue
Deal found 7/3![JetBlue logo]()
$307
This American Airlines deal was found by Cheapflights users on 7/2. 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 7/173:29 pmORH - SAN
1 stop8h 53mAmerican Airlines
Mon 7/2110:47 pmSAN - ORH
1 stop13h 17mAmerican Airlines
Deal found 7/2![American Airlines logo]()
$312
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 3, 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
Wed 8/20
5:05 pm-10:14 pm
1 stop8h 09m
San Diego
Wed 8/27
12:35 pm-11:57 pm
1 stop8h 22m
$252
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Fri 7/18
12:26 pm-9:55 am
2 stops24h 29m
San Diego
Tue 7/22
7:00 pm-7:30 pm
3 stops21h 30m
$254
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 8/23
4:30 pm-7:48 pm
Nonstop6h 18m
San Diego
Fri 8/29
1:30 pm-10:20 pm
Nonstop5h 50m
$257
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 8/23
8:29 am-1:35 pm
1 stop8h 06m
San Diego
Sat 8/30
6:15 am-5:15 pm
1 stop8h 00m
$258
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 8/16
5:35 am-10:15 am
1 stop7h 40m
San Diego
Sat 8/23
8:15 am-10:15 pm
2 stops11h 00m
$262
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Tue 8/12
5:45 pm-9:00 pm
Nonstop6h 15m
San Diego
Thu 8/14
7:04 pm-9:28 am
2 stops11h 24m
$263
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 9/3
7:20 am-4:34 pm
1 stop12h 14m
San Diego
Sun 9/7
9:35 pm-6:25 am
Nonstop5h 50m
$267
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 8/14
5:35 pm-8:52 pm
Nonstop6h 17m
San Diego
Sun 8/17
10:05 pm-6:49 am
Nonstop5h 44m
$277
PortlandSan Diego
PWM - SAN
PWMSAN
Portland
Wed 9/24
2:17 pm-7:30 pm
1 stop8h 13m
San Diego
Mon 10/6
10:10 am-10:02 pm
1 stop8h 52m
$287
ManchesterSan Diego
MHT - SAN
MHTSAN
Manchester
Sat 10/4
12:38 pm-7:27 pm
1 stop9h 49m
San Diego
Wed 10/8
1:12 pm-11:56 pm
1 stop7h 44m
$287
Showing 1-10 of 46 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 July 3, 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.
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 July 3, 2025.
Read reviews from past customers who have flown Breeze Airways, Alaska Airlines, and Southwest from New Hampshire to San Diego. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.1
Crew
8.8
Entertainment
6.6
Boarding
8.3
Food
6.8
Comfort
8.2
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Crew
8.8
Entertainment
6.6
Boarding
8.3
Food
6.8
Comfort
8.2
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Crew
8.8
Entertainment
6.6
Boarding
8.3
Food
6.8
Comfort
8.2
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Crew
8.8
Entertainment
6.6
Boarding
8.3
Food
6.8
Comfort
8.2
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Crew
8.8
Entertainment
6.6
Boarding
8.3
Food
6.8
Comfort
8.2
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Overall
8.1
Crew
8.8
Entertainment
6.6
Boarding
8.3
Food
6.8
Comfort
8.2
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
Coronado
National City
Lemon Grove
Imperial Beach
La Mesa
Poway
Alpine
Santee
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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 July 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$442 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$327 | Average$532 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$351 | Average$485 | FlexibilityNo cancel fee | On-time63% |