$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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
May 14 — May 211
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 14, 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 14, 2026.
This American Airlines deal was found by Cheapflights users on 4/10. 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 4/305:35 pm
BOS
- SAN
1 stop8h 58m
American Airlines
Tue 5/510:30 pm
SAN
- BOS
1 stop8h 51m
American Airlines
Deal found 4/10![American Airlines logo]()
$247
This SmartFares deal was found by Cheapflights users on 4/11. 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.
Sat 5/24:40 pm
BOS
- SAN
Nonstop6h 23m
JetBlue
Fri 5/88:25 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/11![JetBlue logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 4/10![Multiple Airlines logo]()
$251
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 5/265:49 pm
BOS
- SAN
1 stop8h 50m
American Airlines
Sat 5/3010:45 pm
SAN
- BOS
1 stop7h 42m
American Airlines
Deal found 4/14![American Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 4/11. 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.
Sun 5/35:45 am
BOS
- SAN
1 stop8h 31m
United Airlines
Sat 5/92:14 pm
SAN
- BOS
1 stop7h 45m
United Airlines
Deal found 4/11![United Airlines logo]()
$259
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 Flysmarter 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sat 5/169:35 pm
SAN
- BOS
Nonstop5h 37m
JetBlue
Deal found 4/12![JetBlue 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 4/9. 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.
Fri 5/156:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Tue 5/198:30 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/9![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 American Airlines deal was found by Cheapflights users on 4/11. 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.
Sun 4/262:39 pm
ORH
- SAN
1 stop11h 10m
American Airlines
Thu 4/3010:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 4/11![American Airlines logo]()
$362
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 14, 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 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/10. 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 6/36:40 pm
BOS
- SAN
Nonstop6h 29m
Alaska Airlines
Tue 6/93:56 pm
SAN
- BOS
1 stop12h 44m
Alaska Airlines
Deal found 4/10![Alaska Airlines logo]()
$287
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.
Wed 5/135:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Mon 5/189:49 pm
SAN
- BOS
Nonstop5h 41m
Delta
Deal found 4/13![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 4/9. 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 7/145:30 pm
BOS
- SAN
1 stop8h 50m
Southwest
Sat 7/182:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Deal found 4/9![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 4/11. 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 5/2811:00 am
BOS
- SAN
2 stops11h 50m
United Airlines
Tue 6/21:53 pm
SAN
- BOS
1 stop8h 06m
United Airlines
Deal found 4/11![United Airlines logo]()
$338
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 JetBlue deal was found by Cheapflights users on 4/9. 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 5/282:09 pm
LEB
- SAN
1 stop8h 24m
JetBlue
Mon 6/18:44 pm
SAN
- LEB
1 stop10h 09m
JetBlue
Deal found 4/9![JetBlue logo]()
$576
This Delta deal was found by Cheapflights users on 4/9. 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 4/305:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Sun 5/39:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Deal found 4/9![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 4/10. 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 5/41:35 pm
SAN
- BOS
1 stop8h 35m
United Airlines
Deal found 4/10![United Airlines logo]()
$347
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:25 pm
BOS
- SAN
Nonstop6h 10m
Southwest
Tue 7/1410:40 pm
SAN
- BOS
1 stop9h 15m
Southwest
Deal found 4/12![Southwest logo]()
$347
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.
Wed 4/295:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Sat 5/29:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Deal found 4/13![Delta logo]()
$327
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 5/14:49 pm
SAN
- LEB
2 stops17h 55m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$720
This United Airlines deal was found by Cheapflights users on 4/11. 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 8/187:25 am
BOS
- SAN
1 stop8h 52m
United Airlines
Tue 8/257:41 pm
SAN
- BOS
2 stops12h 26m
United Airlines
Deal found 4/11![United Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 4/9. 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 5/304:30 pm
BOS
- SAN
2 stops9h 55m
Southwest
Fri 6/510:40 pm
SAN
- BOS
1 stop7h 00m
Southwest
Deal found 4/9![Southwest logo]()
$352
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 9/295:15 am
BOS
- SAN
2 stops14h 55m
United Airlines
Fri 10/210:30 pm
SAN
- BOS
1 stop7h 54m
United Airlines
Deal found 4/13![United Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 4/9. 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 9/297:58 am
MHT
- SAN
1 stop8h 14m
American Airlines
Sat 10/311:09 am
SAN
- MHT
2 stops9h 26m
American Airlines
Deal found 4/9![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.
Sat 5/26:00 am
BOS
- SAN
2 stops11h 05m
Southwest
Fri 5/810:40 pm
SAN
- BOS
2 stops11h 55m
Southwest
Deal found 4/13![Southwest logo]()
$363
This Southwest deal was found by Cheapflights users on 4/9. 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 5/123:45 pm
MHT
- SAN
1 stop9h 40m
Southwest
Thu 5/143:40 pm
SAN
- MHT
1 stop13h 50m
Southwest
Deal found 4/9![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 4/10. 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 5/912:50 pm
PWM
- SAN
2 stops13h 37m
Delta
Sat 5/166:15 am
SAN
- PWM
2 stops13h 54m
Delta
Deal found 4/10![Delta logo]()
$427
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.
Sat 5/304:45 pm
MHT
- SAN
1 stop8h 50m
Southwest
Wed 6/37:35 pm
SAN
- MHT
2 stops9h 35m
Southwest
Deal found 4/13![Southwest logo]()
$382
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 5/44:43 pm
PWM
- SAN
2 stops9h 59m
Delta
Mon 5/1110:15 pm
SAN
- PWM
2 stops11h 23m
Delta
Deal found 4/13![Delta logo]()
$431
This American Airlines deal was found by Cheapflights users on 4/10. 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.
Sun 6/285:18 pm
ORH
- SAN
1 stop20h 55m
American Airlines
Thu 7/26:15 am
SAN
- ORH
1 stop7h 36m
American Airlines
Deal found 4/10![American Airlines logo]()
$533
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 American Airlines deal was found by Cheapflights users on 4/10. 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 6/275:18 pm
ORH
- SAN
2 stops18h 04m
American Airlines
Wed 7/19:55 pm
SAN
- ORH
1 stop15h 56m
American Airlines
Deal found 4/10![American Airlines logo]()
$536
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 Southwest deal was found by Cheapflights users on 4/9. 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 6/31:00 pm
PWM
- SAN
1 stop8h 55m
Southwest
Sat 6/66:40 am
SAN
- PWM
2 stops11h 20m
Southwest
Deal found 4/9![Southwest logo]()
$415
This United Airlines deal was found by Cheapflights users on 4/11. 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.
Mon 6/296:00 am
PWM
- SAN
1 stop8h 21m
United Airlines
Mon 7/69:45 pm
SAN
- PWM
1 stop9h 19m
United Airlines
Deal found 4/11![United Airlines logo]()
$487
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
This American Airlines deal was found by Cheapflights users on 4/10. 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 6/295:18 pm
ORH
- SAN
2 stops18h 42m
American Airlines
Wed 7/19:55 pm
SAN
- ORH
1 stop15h 56m
American Airlines
Deal found 4/10![American Airlines logo]()
$553
This Delta deal was found by Cheapflights users on 4/9. 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 5/291:18 pm
PWM
- SAN
2 stops11h 42m
Delta
Mon 6/110:15 pm
SAN
- PWM
2 stops12h 43m
Delta
Deal found 4/9![Delta logo]()
$464
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
1 stop9h 50m
Southwest
Tue 9/297:00 am
SAN
- MHT
2 stops11h 10m
Southwest
Deal found 4/13![Southwest logo]()
$432
Last-minute flights from New Hampshire to San DiegoDiscover last-minute flight deals from New Hampshire to San Diego. Data last updated April 14, 2026 and is based on user searches.
Discover last-minute flight deals from New Hampshire to San Diego. Data last updated April 14, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/11. 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.
Sun 4/262:39 pm
ORH
- SAN
1 stop11h 10m
American Airlines
Thu 4/3010:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 4/11![American Airlines logo]()
$362
This American Airlines deal was found by Cheapflights users on 4/10. 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 4/305:35 pm
BOS
- SAN
1 stop8h 58m
American Airlines
Tue 5/510:30 pm
SAN
- BOS
1 stop8h 51m
American Airlines
Deal found 4/10![American Airlines logo]()
$247
This American Airlines deal was found by Cheapflights users on 4/11. 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 4/305:35 pm
BOS
- SAN
1 stop8h 58m
American Airlines
Sun 5/310:40 pm
SAN
- BOS
1 stop7h 47m
American Airlines
Deal found 4/11![American Airlines logo]()
$267
This SmartFares deal was found by Cheapflights users on 4/11. 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.
Sat 5/24:40 pm
BOS
- SAN
Nonstop6h 23m
JetBlue
Fri 5/88:25 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/11![JetBlue logo]()
$249
This United Airlines deal was found by Cheapflights users on 4/11. 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.
Sun 5/35:45 am
BOS
- SAN
1 stop8h 31m
United Airlines
Sat 5/92:14 pm
SAN
- BOS
1 stop7h 45m
United Airlines
Deal found 4/11![United Airlines logo]()
$259
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 4/10. 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 4/10![Multiple Airlines logo]()
$251
This Flysmarter 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Sat 5/169:35 pm
SAN
- BOS
Nonstop5h 37m
JetBlue
Deal found 4/12![JetBlue logo]()
$268
This Cheapflightsfares deal was found by Cheapflights users on 4/9. 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.
Fri 5/156:00 am
BOS
- SAN
Nonstop6h 15m
JetBlue
Tue 5/198:30 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/9![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 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 5/265:49 pm
BOS
- SAN
1 stop8h 50m
American Airlines
Sat 5/3010:45 pm
SAN
- BOS
1 stop7h 42m
American Airlines
Deal found 4/14![American Airlines logo]()
$257
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
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 14, 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 14, 2026.
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:40 pm
BOS
- SAN
Nonstop6h 29m
Alaska Airlines
Deal found 4/14![Alaska Airlines 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 4/13. 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.
Tue 5/199:31 am
BOS
- SAN
2 stops33h 00m
Frontier
Deal found 4/13![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 4/14. 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 Super.com 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]()
$145
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.
Fri 6/126:05 am
BOS
- SAN
Nonstop6h 05m
JetBlue
Deal found 4/14![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.
Wed 8/195:15 pm
BOS
- SAN
Nonstop6h 26m
Delta
Deal found 4/13![Delta logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 4/2812:52 pm
BOS
- SAN
2 stops27h 25m
Frontier
Deal found 4/10![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/306:00 am
BOS
- SAN
2 stops29h 42m
Frontier
Deal found 4/10![Frontier logo]()
$151
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.
Tue 6/96:00 am
BOS
- SAN
2 stops21h 15m
Frontier
Deal found 4/13![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 Southwest deal was found by Cheapflights users on 4/10. 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 5/39:55 pm
BOS
- SAN
1 stop14h 25m
Southwest
Deal found 4/10![Southwest 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 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $247 (American Airlines) |
One-way from | $139 (Expedia) |
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 14, 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
Wed 6/3
6:40 pm-10:09 pm
Nonstop6h 29m
San Diego
Tue 6/9
3:56 pm-7:40 am
1 stop12h 44m
$287
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 5/13
5:15 pm-8:36 pm
Nonstop6h 21m
San Diego
Mon 5/18
9:49 pm-6:30 am
Nonstop5h 41m
$306
Quickest round-trip
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 4/30
5:44 pm-9:13 pm
Nonstop6h 29m
San Diego
Sun 5/3
9:59 pm-6:30 am
Nonstop5h 31m
$307
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Tue 7/14
5:30 pm-11:20 pm
1 stop8h 50m
San Diego
Sat 7/18
2:35 pm-11:00 pm
Nonstop5h 25m
$315
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 4/29
5:44 pm-9:13 pm
Nonstop6h 29m
San Diego
Sat 5/2
9:59 pm-6:30 am
Nonstop5h 31m
$327
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/28
11:00 am-7:50 pm
2 stops11h 50m
San Diego
Tue 6/2
1:53 pm-12:59 am
1 stop8h 06m
$338
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Fri 5/1
3:43 pm-9:25 pm
1 stop8h 42m
San Diego
Mon 5/4
1:35 pm-1:10 am
1 stop8h 35m
$347
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 7/8
4:25 pm-7:35 pm
Nonstop6h 10m
San Diego
Tue 7/14
10:40 pm-10:55 am
1 stop9h 15m
$347
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Tue 8/18
7:25 am-1:17 pm
1 stop8h 52m
San Diego
Tue 8/25
7:41 pm-11:07 am
2 stops12h 26m
$352
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sat 5/30
4:30 pm-11:25 pm
2 stops9h 55m
San Diego
Fri 6/5
10:40 pm-8:40 am
1 stop7h 00m
$352
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
PWM-SAN
MHT-SAN
LEB-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
PWM-SAN
MHT-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 April is currently the most expensive (average of $388). 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 14, 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 14, 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 14, 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% |