$139+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
May 17 — May 241
Round-trip
1 adult, Economy
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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
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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 17, 2026.
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 17, 2026.
This American Airlines deal was found by Cheapflights users on 4/12. 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 4/304:21 pm
BOS
- SAN
1 stop10h 35m
American Airlines
Sun 5/310:40 pm
SAN
- BOS
1 stop7h 47m
American Airlines
Deal found 4/12![American Airlines logo]()
$247
This SmartFares deal was found by Cheapflights users on 4/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:40 pm
BOS
- SAN
Nonstop6h 29m
Alaska Airlines
Fri 6/58:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$248
This SmartFares deal was found by Cheapflights users on 4/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sat 5/99:25 pm
SAN
- BOS
Nonstop5h 37m
JetBlue
Deal found 4/12![JetBlue logo]()
$249
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/18:26 am
BOS
- SAN
1 stop10h 25m
American Airlines
Fri 5/110:40 pm
SAN
- BOS
1 stop7h 47m
American Airlines
Deal found 4/14![American Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Tue 5/56:00 am
BOS
- SAN
2 stops20h 50m
Multiple Airlines
Tue 5/1212:54 pm
SAN
- BOS
1 stop19h 12m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$266
This American Airlines deal was found by Cheapflights users on 4/14. 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 6/234:06 pm
BOS
- SAN
1 stop9h 33m
American Airlines
Sat 7/411:07 am
SAN
- BOS
1 stop9h 03m
American Airlines
Deal found 4/14![American Airlines logo]()
$267
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/44:24 pm
BOS
- SAN
1 stop8h 31m
American Airlines
Wed 5/131:16 pm
SAN
- BOS
1 stop8h 08m
American Airlines
Deal found 4/15![American Airlines logo]()
$268
This United Airlines deal was found by Cheapflights users on 4/14. 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 9/237:35 am
BOS
- SAN
1 stop8h 15m
United Airlines
Wed 9/302:09 pm
SAN
- BOS
1 stop8h 00m
United Airlines
Deal found 4/14![United Airlines logo]()
$270
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:37 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Tue 6/28:44 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/14![JetBlue logo]()
$271
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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.
Tue 5/266:37 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sat 5/309:10 pm
SAN
- BOS
Nonstop5h 35m
JetBlue
Deal found 4/14![JetBlue logo]()
$272
This Super.com deal was found by Cheapflights users on 4/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Thu 5/288:44 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/13![JetBlue logo]()
$273
This Flysmarter deal was found by Cheapflights users on 4/13. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sun 5/108:30 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/13![JetBlue logo]()
$274
Best flights from New Hampshire to San DiegoDiscover carefully curated flight deals from New Hampshire to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from New Hampshire to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/286:40 pm
BOS
- SAN
Nonstop6h 29m
Alaska Airlines
Sun 6/78:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 4/15. 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 6/44:30 pm
BOS
- SAN
Nonstop6h 10m
Southwest
Wed 6/102:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Deal found 4/15![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 4/13. 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.
Thu 6/45:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Sun 6/79:54 pm
SAN
- BOS
Nonstop5h 36m
Delta
Deal found 4/13![Delta logo]()
$307
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/72:39 pm
ORH
- SAN
2 stops12h 17m
American Airlines
Mon 5/1110:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 4/16![American Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/289:30 am
BOS
- SAN
2 stops13h 20m
United Airlines
Tue 6/21:53 pm
SAN
- BOS
1 stop8h 06m
United Airlines
Deal found 4/16![United Airlines logo]()
$338
This JetBlue deal was found by Cheapflights users on 4/14. 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 6/610:48 am
LEB
- SAN
1 stop12h 11m
JetBlue
Tue 6/98:44 pm
SAN
- LEB
1 stop10h 09m
JetBlue
Deal found 4/14![JetBlue logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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.
Sat 5/306:00 am
BOS
- SAN
1 stop10h 18m
Alaska Airlines
Sun 5/318:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$287
This Expedia deal was found by Cheapflights users on 4/12. 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.
Mon 4/272:09 pm
LEB
- SAN
1 stop10h 20m
Multiple Airlines
Fri 5/18:25 pm
SAN
- LEB
1 stop10h 28m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$600
This Southwest deal was found by Cheapflights users on 4/14. 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 8/2011:15 am
BOS
- SAN
Nonstop5h 55m
Southwest
Tue 8/2510:40 pm
SAN
- BOS
1 stop8h 15m
Southwest
Deal found 4/14![Southwest logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 5/45:56 pm
BOS
- SAN
Nonstop6h 33m
Alaska Airlines
Wed 5/138:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/287:25 am
BOS
- SAN
1 stop8h 56m
United Airlines
Sun 6/78:32 pm
SAN
- BOS
1 stop9h 08m
United Airlines
Deal found 4/16![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 4/15. 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 8/122:30 pm
BOS
- SAN
1 stop9h 15m
Southwest
Tue 8/187:30 am
SAN
- BOS
2 stops10h 55m
Southwest
Deal found 4/15![Southwest logo]()
$322
This American Airlines deal was found by Cheapflights users on 4/16. 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 4/302:39 pm
ORH
- SAN
1 stop11h 10m
American Airlines
Sun 5/310:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 4/16![American Airlines logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/286:40 pm
BOS
- SAN
Nonstop6h 29m
Alaska Airlines
Sat 6/64:40 pm
SAN
- BOS
1 stop10h 40m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 4/13. 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 4/297:05 am
BOS
- SAN
2 stops13h 11m
United Airlines
Sat 5/210:20 pm
SAN
- BOS
1 stop7h 51m
United Airlines
Deal found 4/13![United Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 4/12. 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 4/282:39 pm
ORH
- SAN
1 stop23h 38m
American Airlines
Sat 5/210:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 4/12![American Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Fri 5/13:43 pm
BOS
- SAN
1 stop8h 42m
United Airlines
Mon 5/48:45 pm
SAN
- BOS
2 stops11h 16m
United Airlines
Deal found 4/15![United Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 4/12. 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.
Tue 5/196:02 am
PWM
- SAN
2 stops13h 28m
Delta
Sun 5/246:15 am
SAN
- PWM
2 stops13h 50m
Delta
Deal found 4/12![Delta logo]()
$453
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Wed 7/295:16 pm
ORH
- SAN
1 stop21h 00m
American Airlines
Mon 8/36:15 am
SAN
- ORH
1 stop7h 36m
American Airlines
Deal found 4/15![American Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 4/305:24 pm
ORH
- SAN
2 stops23h 11m
Delta
Sun 5/310:30 pm
SAN
- ORH
2 stops15h 13m
Delta
Deal found 4/15![Delta logo]()
$461
This Southwest deal was found by Cheapflights users on 4/14. 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 6/47:00 pm
MHT
- SAN
1 stop7h 25m
Southwest
Sun 6/78:55 pm
SAN
- MHT
2 stops10h 55m
Southwest
Deal found 4/14![Southwest logo]()
$432
This Delta deal was found by Cheapflights users on 4/12. 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.
Fri 5/294:48 pm
PWM
- SAN
2 stops9h 55m
Delta
Mon 6/110:15 pm
SAN
- PWM
2 stops12h 43m
Delta
Deal found 4/12![Delta logo]()
$464
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 5/202:39 pm
ORH
- SAN
1 stop11h 12m
American Airlines
Sat 5/309:55 pm
SAN
- ORH
1 stop15h 58m
American Airlines
Deal found 4/14![American Airlines logo]()
$432
This Southwest deal was found by Cheapflights users on 4/13. 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.
Fri 9/2510:20 am
MHT
- SAN
2 stops10h 50m
Southwest
Tue 9/298:15 am
SAN
- MHT
2 stops10h 35m
Southwest
Deal found 4/13![Southwest logo]()
$437
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/195:30 am
PWM
- SAN
1 stop8h 46m
United Airlines
Sun 5/246:20 am
SAN
- PWM
2 stops10h 07m
United Airlines
Deal found 4/13![United Airlines logo]()
$448
This JetBlue deal was found by Cheapflights users on 4/12. 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.
Thu 5/2810:48 am
LEB
- SAN
1 stop11h 45m
JetBlue
Mon 6/18:44 pm
SAN
- LEB
1 stop10h 09m
JetBlue
Deal found 4/12![JetBlue logo]()
$601
This Delta deal was found by Cheapflights users on 4/15. 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.
Tue 4/285:24 pm
ORH
- SAN
2 stops26h 14m
Delta
Sun 5/310:30 pm
SAN
- ORH
2 stops15h 13m
Delta
Deal found 4/15![Delta logo]()
$475
This Southwest deal was found by Cheapflights users on 4/14. 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.
Tue 6/239:10 am
MHT
- SAN
2 stops13h 25m
Southwest
Wed 7/110:40 pm
SAN
- MHT
1 stop9h 10m
Southwest
Deal found 4/14![Southwest logo]()
$442
This United Airlines deal was found by Cheapflights users on 4/12. 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 9/192:43 pm
MHT
- SAN
2 stops10h 44m
United Airlines
Sun 9/279:55 pm
SAN
- MHT
1 stop9h 48m
United Airlines
Deal found 4/12![United Airlines logo]()
$462
This Priceline deal was found by Cheapflights users on 4/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 am
LEB
- SAN
1 stop10h 02m
Multiple Airlines
Sun 5/38:30 pm
SAN
- LEB
1 stop10h 23m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$725
Last-minute flights from New Hampshire to San DiegoDiscover last-minute flight deals from New Hampshire to San Diego. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from New Hampshire to San Diego. Data last updated April 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/12. 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 4/304:21 pm
BOS
- SAN
1 stop10h 35m
American Airlines
Sun 5/310:40 pm
SAN
- BOS
1 stop7h 47m
American Airlines
Deal found 4/12![American Airlines logo]()
$247
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/18:26 am
BOS
- SAN
1 stop10h 25m
American Airlines
Fri 5/110:40 pm
SAN
- BOS
1 stop7h 47m
American Airlines
Deal found 4/14![American Airlines logo]()
$257
This SmartFares deal was found by Cheapflights users on 4/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sat 5/99:25 pm
SAN
- BOS
Nonstop5h 37m
JetBlue
Deal found 4/12![JetBlue logo]()
$249
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/44:24 pm
BOS
- SAN
1 stop8h 31m
American Airlines
Wed 5/131:16 pm
SAN
- BOS
1 stop8h 08m
American Airlines
Deal found 4/15![American Airlines logo]()
$268
This Flysmarter deal was found by Cheapflights users on 4/13. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sun 5/108:30 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/13![JetBlue logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Tue 5/56:00 am
BOS
- SAN
2 stops20h 50m
Multiple Airlines
Tue 5/1212:54 pm
SAN
- BOS
1 stop19h 12m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$266
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/72:39 pm
ORH
- SAN
1 stop11h 10m
American Airlines
Mon 5/1110:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 4/16![American Airlines logo]()
$312
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:00 am
BOS
- SAN
Nonstop6h 20m
JetBlue
Sat 5/169:35 pm
SAN
- BOS
Nonstop5h 37m
JetBlue
Deal found 4/14![JetBlue logo]()
$275
This Super.com deal was found by Cheapflights users on 4/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Thu 5/288:44 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/13![JetBlue logo]()
$273
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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.
Tue 5/266:37 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sat 5/309:10 pm
SAN
- BOS
Nonstop5h 35m
JetBlue
Deal found 4/14![JetBlue logo]()
$272
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:37 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Tue 6/28:44 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/14![JetBlue logo]()
$271
This SmartFares deal was found by Cheapflights users on 4/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:40 pm
BOS
- SAN
Nonstop6h 29m
Alaska Airlines
Fri 6/58:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$248
One-way flights from New Hampshire to San DiegoSearch for one-way flight options from New Hampshire to San Diego. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from New Hampshire to San Diego. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/136:00 am
BOS
- SAN
2 stops18h 04m
Frontier
Deal found 4/14![Frontier logo]()
$139
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:05 am
BOS
- SAN
Nonstop6h 05m
JetBlue
Deal found 4/14![JetBlue logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Sat 5/912:01 pm
BOS
- SAN
2 stops23h 41m
Frontier
Deal found 4/15![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sat 6/66:00 am
BOS
- SAN
2 stops33h 43m
Frontier
Deal found 4/13![Frontier logo]()
$144
This Super.com deal was found by Cheapflights users on 4/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:05 am
BOS
- SAN
Nonstop6h 05m
JetBlue
Deal found 4/16![JetBlue logo]()
$145
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:05 am
BOS
- SAN
Nonstop6h 05m
JetBlue
Deal found 4/14![JetBlue logo]()
$147
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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.
Wed 6/246:05 am
BOS
- SAN
Nonstop6h 05m
JetBlue
Deal found 4/16![JetBlue logo]()
$148
This Delta deal was found by Cheapflights users on 4/13. 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.
Mon 8/175:15 pm
BOS
- SAN
Nonstop6h 26m
Delta
Deal found 4/13![Delta logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Tue 6/26:00 am
BOS
- SAN
2 stops20h 44m
Frontier
Deal found 4/14![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/66:00 am
BOS
- SAN
2 stops20h 12m
Frontier
Deal found 4/16![Frontier logo]()
$152
This American Airlines deal was found by Cheapflights users on 4/13. 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 5/152:39 pm
ORH
- SAN
1 stop11h 10m
American Airlines
Deal found 4/13![American Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Sat 5/910:07 am
BOS
- SAN
3 stops25h 35m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$154
Find 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 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $247 (American Airlines) |
One-way from | $139 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $426 |
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 17, 2026.
Use the filters below to find and compare flights from New Hampshire to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/28
6:40 pm-10:09 pm
Nonstop6h 29m
San Diego
Sun 6/7
8:54 pm-5:44 am
Nonstop5h 50m
$277
Quickest round-trip
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 6/4
4:30 pm-7:40 pm
Nonstop6h 10m
San Diego
Wed 6/10
2:35 pm-11:00 pm
Nonstop5h 25m
$277
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 5/30
6:00 am-1:18 pm
1 stop10h 18m
San Diego
Sun 5/31
8:54 pm-5:44 am
Nonstop5h 50m
$287
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Mon 5/4
5:56 pm-9:29 pm
Nonstop6h 33m
San Diego
Wed 5/13
8:54 pm-5:44 am
Nonstop5h 50m
$302
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 6/4
5:15 pm-8:36 pm
Nonstop6h 21m
San Diego
Sun 6/7
9:54 pm-6:30 am
Nonstop5h 36m
$307
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 8/20
11:15 am-2:10 pm
Nonstop5h 55m
San Diego
Tue 8/25
10:40 pm-9:55 am
1 stop8h 15m
$307
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/28
6:40 pm-10:09 pm
Nonstop6h 29m
San Diego
Sat 6/6
4:40 pm-6:20 am
1 stop10h 40m
$317
WorcesterSan Diego
ORH - SAN
ORHSAN
Worcester
Thu 5/7
2:39 pm-11:56 pm
2 stops12h 17m
San Diego
Mon 5/11
10:30 pm-2:14 pm
1 stop12h 44m
$322
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 8/12
2:30 pm-8:45 pm
1 stop9h 15m
San Diego
Tue 8/18
7:30 am-9:25 pm
2 stops10h 55m
$322
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/28
9:30 am-7:50 pm
2 stops13h 20m
San Diego
Tue 6/2
1:53 pm-12:59 am
1 stop8h 06m
$338
Showing 1-10 of 60 resultsSorted by cheapest first
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.
BOS-SAN
ORH-SAN
LEB-SAN
PWM-SAN
MHT-SAN
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
USNH-SAN
BOS-SAN
ORH-SAN
LEB-SAN
PWM-SAN
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 $168). Flying from New Hampshire to San Diego in November is currently the most expensive (average of $421). 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.
How much does it cost to fly round-trip from New Hampshire to San Diego?
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 San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of 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.
Complete your trip
Complete your trip to San Diego by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from New Hampshire to San Diego by cabin class
Find flights from New Hampshire to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.
New Hampshire and San Diego flights
Browse other New Hampshire and San Diego flight options. Last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
New Hampshire to San Diego flights
Consider these flights traveling from New Hampshire to San Diego.
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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$262 | Average$421 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$351 | Average$466 | FlexibilityNo cancel fee | On-time63% |