$104+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SAN
May 3 — May 101
Round-trip
1 adult, Economy
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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 3, 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 3, 2026.
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:45 pm
BOS
- SAN
1 stop10h 25m
Southwest
Sat 5/29:40 pm
SAN
- BOS
1 stop7h 50m
Southwest
Deal found 3/31![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Tue 6/99:54 pm
SAN
- BOS
Nonstop5h 36m
Delta
Deal found 3/31![Delta logo]()
$238
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:45 pm
BOS
- SAN
2 stops9h 45m
Southwest
Fri 5/12:35 pm
SAN
- BOS
1 stop7h 15m
Southwest
Deal found 3/31![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Mon 6/89:54 pm
SAN
- BOS
Nonstop5h 36m
Delta
Deal found 4/1![Delta logo]()
$245
This American Airlines deal was found by Cheapflights users on 4/2. 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.
Wed 4/224:21 pm
BOS
- SAN
1 stop8h 39m
American Airlines
Mon 4/2710:40 pm
SAN
- BOS
1 stop9h 52m
American Airlines
Deal found 4/2![American Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Tue 5/59:45 pm
SAN
- BOS
1 stop8h 49m
Delta
Deal found 3/31![Delta logo]()
$248
This American Airlines deal was found by Cheapflights users on 4/1. 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 4/254:21 pm
BOS
- SAN
1 stop10h 35m
American Airlines
Sat 5/212:56 pm
SAN
- BOS
1 stop8h 28m
American Airlines
Deal found 4/1![American Airlines logo]()
$251
This United Airlines deal was found by Cheapflights users on 4/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:26 pm
BOS
- SAN
1 stop8h 28m
United Airlines
Mon 7/2010:40 pm
SAN
- BOS
1 stop8h 08m
United Airlines
Deal found 4/1![United Airlines logo]()
$253
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com 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
Sat 5/238:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:54 pm
BOS
- SAN
1 stop7h 48m
Delta
Fri 5/19:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Deal found 3/31![Delta logo]()
$255
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Sun 6/79:54 pm
SAN
- BOS
Nonstop5h 36m
Delta
Deal found 4/1![Delta logo]()
$256
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 4/152:02 pm
BOS
- SAN
1 stop9h 31m
American Airlines
Tue 4/216:40 am
SAN
- BOS
1 stop9h 29m
American Airlines
Deal found 4/1![American Airlines logo]()
$257
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 3, 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 3, 2026.
This Delta deal was found by Cheapflights users on 4/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:30 am
BOS
- SAN
1 stop8h 18m
Delta
Thu 5/79:49 pm
SAN
- BOS
Nonstop5h 41m
Delta
Deal found 4/2![Delta logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/258:05 am
BOS
- SAN
Nonstop6h 27m
Alaska Airlines
Sat 5/308:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 4/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:45 pm
BOS
- SAN
1 stop10h 35m
Southwest
Sun 6/142:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Deal found 4/3![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 4/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:05 am
BOS
- SAN
2 stops13h 00m
United Airlines
Mon 4/2710:30 pm
SAN
- BOS
2 stops11h 59m
United Airlines
Deal found 4/1![United Airlines logo]()
$357
This JetBlue deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:20 am
PWM
- SAN
1 stop9h 54m
JetBlue
Tue 5/1210:25 am
SAN
- PWM
1 stop9h 38m
JetBlue
Deal found 3/30![JetBlue logo]()
$375
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:18 pm
ORH
- SAN
1 stop20h 55m
American Airlines
Sat 6/66:15 am
SAN
- ORH
1 stop7h 38m
American Airlines
Deal found 4/3![American Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:15 pm
BOS
- SAN
1 stop7h 45m
Delta
Sun 5/109:49 pm
SAN
- BOS
Nonstop5h 41m
Delta
Deal found 4/1![Delta logo]()
$283
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:45 am
BOS
- SAN
1 stop9h 00m
Southwest
Sun 6/72:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Deal found 3/30![Southwest logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/318:05 am
BOS
- SAN
Nonstop6h 27m
Alaska Airlines
Tue 6/98:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 4/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:45 pm
BOS
- SAN
2 stops9h 45m
Southwest
Tue 5/127:40 pm
SAN
- BOS
2 stops9h 35m
Southwest
Deal found 4/2![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 3/29. 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 3/29![Delta logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
BOS
- SAN
1 stop11h 53m
Alaska Airlines
Sat 5/96:34 pm
SAN
- BOS
1 stop9h 38m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 3/29. 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 4/256:00 am
PWM
- SAN
1 stop8h 25m
United Airlines
Thu 4/307:00 pm
SAN
- PWM
2 stops10h 49m
United Airlines
Deal found 3/29![United Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:39 pm
ORH
- SAN
1 stop11h 10m
American Airlines
Sat 5/210:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 3/31![American Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Mon 5/189:49 pm
SAN
- BOS
Nonstop5h 41m
Delta
Deal found 3/31![Delta logo]()
$367
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:45 pm
MHT
- SAN
1 stop9h 40m
Southwest
Tue 6/29:40 pm
SAN
- MHT
1 stop7h 25m
Southwest
Deal found 3/30![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Sun 5/246:00 am
PWM
- SAN
1 stop8h 21m
United Airlines
Thu 5/289:45 pm
SAN
- PWM
1 stop9h 22m
United Airlines
Deal found 4/2![United Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:39 pm
ORH
- SAN
2 stops10h 16m
American Airlines
Sat 5/24:32 pm
SAN
- ORH
2 stops18h 42m
American Airlines
Deal found 3/31![American Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:35 am
MHT
- SAN
1 stop8h 55m
Southwest
Thu 4/233:40 pm
SAN
- MHT
1 stop13h 50m
Southwest
Deal found 3/30![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:23 pm
PWM
- SAN
1 stop8h 49m
United Airlines
Sun 5/178:45 pm
SAN
- PWM
2 stops10h 38m
United Airlines
Deal found 3/29![United Airlines logo]()
$457
This Delta deal was found by Cheapflights users on 3/29. 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 5/62:51 pm
PWM
- SAN
1 stop8h 58m
Delta
Thu 5/71:10 pm
SAN
- PWM
1 stop8h 33m
Delta
Deal found 3/29![Delta logo]()
$419
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:18 pm
ORH
- SAN
2 stops25h 10m
American Airlines
Sat 6/610:45 pm
SAN
- ORH
2 stops15h 08m
American Airlines
Deal found 4/3![American Airlines logo]()
$473
This Southwest deal was found by Cheapflights users on 4/1. 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 8/223:00 pm
MHT
- SAN
1 stop8h 30m
Southwest
Tue 8/257:10 am
SAN
- MHT
1 stop7h 25m
Southwest
Deal found 4/1![Southwest logo]()
$402
This JetBlue deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue 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 3/31![JetBlue logo]()
$594
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/162:39 pm
ORH
- SAN
2 stops28h 06m
American Airlines
Sat 4/1810:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 3/30![American Airlines logo]()
$482
This JetBlue deal was found by Cheapflights users on 3/29. 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 5/610:48 am
LEB
- SAN
1 stop11h 30m
JetBlue
Sat 5/99:25 pm
SAN
- LEB
1 stop9h 28m
JetBlue
Deal found 3/29![JetBlue logo]()
$596
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Tue 6/25:15 am
PWM
- SAN
1 stop8h 34m
United Airlines
Wed 6/310:30 pm
SAN
- PWM
1 stop7h 41m
United Airlines
Deal found 4/2![United Airlines logo]()
$509
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:45 pm
BOS
- SAN
2 stops9h 45m
Southwest
Wed 4/297:35 pm
SAN
- BOS
2 stops9h 30m
Southwest
Deal found 3/30![Southwest logo]()
$422
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:24 pm
ORH
- SAN
2 stops23h 11m
Delta
Sat 5/211:58 am
SAN
- ORH
2 stops25h 45m
Delta
Deal found 3/31![Delta logo]()
$472
This American Airlines deal was found by Cheapflights users on 4/2. 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.
Fri 4/172:39 pm
ORH
- SAN
2 stops20h 59m
American Airlines
Tue 4/2110:30 pm
SAN
- ORH
1 stop12h 44m
American Airlines
Deal found 4/2![American Airlines logo]()
$488
Last-minute flights from New Hampshire to San DiegoDiscover last-minute flight deals from New Hampshire to San Diego. Data last updated April 3, 2026 and is based on user searches.
Discover last-minute flight deals from New Hampshire to San Diego. Data last updated April 3, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 4/152:02 pm
BOS
- SAN
1 stop9h 31m
American Airlines
Tue 4/216:40 am
SAN
- BOS
1 stop9h 29m
American Airlines
Deal found 4/1![American Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 4/2. 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.
Wed 4/224:21 pm
BOS
- SAN
1 stop8h 39m
American Airlines
Mon 4/2710:40 pm
SAN
- BOS
1 stop9h 52m
American Airlines
Deal found 4/2![American Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:45 pm
BOS
- SAN
1 stop10h 25m
Southwest
Sat 5/29:40 pm
SAN
- BOS
1 stop7h 50m
Southwest
Deal found 3/31![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:45 pm
BOS
- SAN
2 stops9h 45m
Southwest
Fri 5/12:35 pm
SAN
- BOS
1 stop7h 15m
Southwest
Deal found 3/31![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:54 pm
BOS
- SAN
1 stop7h 48m
Delta
Fri 5/19:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Deal found 3/31![Delta logo]()
$255
This American Airlines deal was found by Cheapflights users on 4/1. 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 4/254:21 pm
BOS
- SAN
1 stop10h 35m
American Airlines
Sat 5/212:56 pm
SAN
- BOS
1 stop8h 28m
American Airlines
Deal found 4/1![American Airlines logo]()
$251
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Tue 5/59:45 pm
SAN
- BOS
1 stop8h 49m
Delta
Deal found 3/31![Delta logo]()
$248
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Tue 5/129:49 pm
SAN
- BOS
Nonstop5h 41m
Delta
Deal found 4/1![Delta logo]()
$259
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Mon 6/89:54 pm
SAN
- BOS
Nonstop5h 36m
Delta
Deal found 4/1![Delta logo]()
$245
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Tue 5/199:49 pm
SAN
- BOS
Nonstop5h 41m
Delta
Deal found 4/1![Delta logo]()
$256
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com 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
Sat 5/238:54 pm
SAN
- BOS
Nonstop5h 50m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Tue 6/99:54 pm
SAN
- BOS
Nonstop5h 36m
Delta
Deal found 3/31![Delta logo]()
$238
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 3, 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 3, 2026.
This American Airlines deal was found by Cheapflights users on 4/3. 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 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 4/3![American Airlines logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 5/98:40 am
BOS
- SAN
2 stops18h 10m
Frontier
Deal found 3/29![Frontier logo]()
$138
This Delta deal was found by Cheapflights users on 4/2. 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 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
Deal found 4/2![Delta logo]()
$139
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/224:00 pm
BOS
- SAN
1 stop10h 25m
Delta
Deal found 3/31![Delta logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:56 pm
BOS
- SAN
2 stops23h 38m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:45 am
BOS
- SAN
2 stops39h 14m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:06 am
BOS
- SAN
2 stops38h 39m
Frontier
Deal found 4/3![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:00 pm
BOS
- SAN
2 stops32h 59m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:05 pm
BOS
- SAN
2 stops37h 56m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$146
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/272:00 pm
BOS
- SAN
1 stop10h 20m
Delta
Deal found 3/31![Delta logo]()
$147
This Cheapflightsfares deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:40 pm
BOS
- SAN
Nonstop6h 24m
JetBlue
Deal found 3/31![JetBlue logo]()
$148
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:15 pm
BOS
- SAN
Nonstop6h 21m
Delta
Deal found 3/31![Delta logo]()
$149
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 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $237 (Southwest) |
One-way from | $138 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $407 |
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 3, 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
Sat 5/2
5:30 am-10:48 am
1 stop8h 18m
San Diego
Thu 5/7
9:49 pm-6:30 am
Nonstop5h 41m
$276
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Mon 5/25
8:05 am-11:32 am
Nonstop6h 27m
San Diego
Sat 5/30
8:54 pm-5:44 am
Nonstop5h 50m
$277
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/7
5:15 pm-10:00 pm
1 stop7h 45m
San Diego
Sun 5/10
9:49 pm-6:30 am
Nonstop5h 41m
$283
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 6/10
3:45 pm-11:20 pm
1 stop10h 35m
San Diego
Sun 6/14
2:35 pm-11:00 pm
Nonstop5h 25m
$297
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Fri 6/5
5:45 am-11:45 am
1 stop9h 00m
San Diego
Sun 6/7
2:35 pm-11:00 pm
Nonstop5h 25m
$307
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Thu 5/7
3:45 pm-10:30 pm
2 stops9h 45m
San Diego
Tue 5/12
7:40 pm-8:15 am
2 stops9h 35m
$307
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Sun 5/31
8:05 am-11:32 am
Nonstop6h 27m
San Diego
Tue 6/9
8:54 pm-5:44 am
Nonstop5h 50m
$317
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
$317
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Tue 5/5
7:00 am-3:53 pm
1 stop11h 53m
San Diego
Sat 5/9
6:34 pm-7:12 am
1 stop9h 38m
$327
BostonSan Diego
BOS - SAN
BOSSAN
Boston Logan Intl
Wed 4/22
10:05 am-8:05 pm
2 stops13h 00m
San Diego
Mon 4/27
10:30 pm-1:29 pm
2 stops11h 59m
$357
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
PWM-SAN
ORH-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
PWM-SAN
ORH-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 $357). 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 3, 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 3, 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 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$262 | Average$416 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$351 | Average$460 | FlexibilityNo cancel fee | On-time63% |