What is the cheapest airline that flies from New Hampshire to San Diego?

Alaska Airlines, Spirit Airlines, and Delta are the most popular carriers operating from New Hampshire to San Diego

What airlines fly to San Diego?

American Airlines, Southwest and United Airlines are the top three most popular airlines that fly to San Diego from New Hampshire according to our data. American Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 3 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

How many flights depart from New Hampshire to San Diego on average per week?

As of September 2025, there are 84 flights per week flying from New Hampshire to San Diego. The most common day of the week flights depart is Thu, with 21% of flights taking off on this day.

How long does it take to fly to San Diego?

On average, it takes 8h 21m to fly from New Hampshire to San Diego if you fly out of Manchester (the most popular airport in New Hampshire) and into San Diego (the most popular airport in San Diego). If you’re flying out of Lebanon and into San Diego, then the flight time is around 8h 59m.

When did momondo last update prices for flights from New Hampshire to San Diego Airport?

Prices for flights from New Hampshire to San Diego Airport are refreshed on a daily basis.

How many operators does momondo search for flights from New Hampshire to San Diego Airport?

The number of operators available for flights from New Hampshire to San Diego Airport is 10 as of September 2025.

How old do you have to be to fly from New Hampshire to San Diego Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from New Hampshire to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$119 Cheap Flights from New Hampshire to San Diego in 2025/26

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Find the cheapest flights from New Hampshire to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:24 pm - 8:10 pmBOS-SAN

6h 46mnonstop

9:15 am - 5:52 pmSAN-BOS

5h 37mnonstop

$219Alaska Airlines

Find Deal

vie., dic. 12 - dom., dic. 14

3:45 pm - 7:16 pmBOS-SAN

6h 31mnonstop

8:42 pm - 5:10 amSAN-BOS

5h 28mnonstop

$224JetBlue

Find Deal

sáb., nov. 1 - sáb., nov. 8

4:06 pm - 7:35 pmBOS-SAN

6h 29mnonstop

8:34 pm - 5:05 amSAN-BOS

5h 31mnonstop

$227JetBlue

Find Deal

jue., dic. 4 - mié., dic. 10

6:00 am - 2:16 pmBOS-SAN

11h 16m1 stop

10:45 pm - 10:34 amSAN-BOS

8h 49m1 stop

$229American Airlines

Find Deal

vie., dic. 5 - sáb., dic. 13

7:00 am - 2:11 pmBOS-SAN

10h 11m1 stop

6:30 am - 5:24 pmSAN-BOS

7h 54m1 stop

$230American Airlines

Find Deal

sáb., nov. 1 - sáb., nov. 8

6:00 am - 11:43 amBOS-SAN

8h 43m1 stop

6:30 am - 8:05 pmSAN-BOS

10h 35m1 stop

$233American Airlines

Find Deal

mié., dic. 3 - sáb., dic. 6

4:24 pm - 8:03 pmBOS-SAN

6h 39mnonstop

9:15 am - 5:55 pmSAN-BOS

5h 40mnonstop

$239Hawaiian Airlines

Find Deal

lun., nov. 3 - mié., nov. 12

4:24 pm - 8:03 pmBOS-SAN

6h 39mnonstop

9:15 am - 5:55 pmSAN-BOS

5h 40mnonstop

$246Hawaiian Airlines

Find Deal

lun., nov. 3 - mié., nov. 12

6:00 am - 11:40 amBOS-SAN

8h 40m1 stop

8:40 pm - 7:20 amSAN-BOS

7h 40m1 stop

$262United Airlines

Find Deal

sáb., oct. 25 - mar., oct. 28

2:33 pm - 8:33 pmMHT-SAN

9h 00m1 stop

8:35 am - 6:53 pmSAN-MHT

7h 18m1 stop

$307United Airlines

Find Deal

mar., feb. 17 - mar., feb. 24

JetBlue flights from New Hampshire to San Diego

Our best JetBlue deals on New Hampshire to San Diego flight tickets

JetBlue

Nov 1

BOS3:45 pmBoston Logan Intl

6h 31m

SAN7:16 pmSan Diego

Nov 8

SAN8:42 pmSan Diego

5h 28m

BOS5:10 amBoston Logan Intl

$224

Find similar

JetBlue

Dec 4

BOS4:06 pmBoston Logan Intl

6h 29m

SAN7:35 pmSan Diego

Dec 9

SAN8:31 pmSan Diego

5h 31m

BOS5:02 amBoston Logan Intl

$227

Find similar

JetBlue

Nov 19

BOS7:00 amBoston Logan Intl

6h 39m

SAN10:39 amSan Diego

Dec 2

SAN8:31 pmSan Diego

5h 31m

BOS5:02 amBoston Logan Intl

$232

Find similar

American Airlines flights from New Hampshire to San Diego

Our best American Airlines deals on New Hampshire to San Diego flight tickets

American Airlines

Dec 5

BOS6:00 amBoston Logan Intl

11h 16m

1 stop

SAN2:16 pmSan Diego

Dec 13

SAN10:45 pmSan Diego

8h 49m

1 stop

BOS10:34 amBoston Logan Intl

$229

Find similar

American Airlines

Nov 1

BOS7:00 amBoston Logan Intl

10h 11m

1 stop

SAN2:11 pmSan Diego

Nov 8

SAN6:30 amSan Diego

7h 54m

1 stop

BOS5:24 pmBoston Logan Intl

$230

Find similar

American Airlines

Dec 3

BOS6:00 amBoston Logan Intl

8h 43m

1 stop

SAN11:43 amSan Diego

Dec 6

SAN6:30 amSan Diego

10h 35m

1 stop

BOS8:05 pmBoston Logan Intl

$233

Find similar

momondo Fare Finder

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

Price

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

vie. 12/12

4:24 pm-8:10 pm

Nonstop6h 46m

San Diego

dom. 12/14

9:15 am-5:52 pm

Nonstop5h 37m

$219

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

sáb. 11/1

3:45 pm-7:16 pm

Nonstop6h 31m

San Diego

sáb. 11/8

8:42 pm-5:10 am

Nonstop5h 28m

$224

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

jue. 12/4

4:06 pm-7:35 pm

Nonstop6h 29m

San Diego

mié. 12/10

8:34 pm-5:05 am

Nonstop5h 31m

$227

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

vie. 12/5

6:00 am-2:16 pm

1 stop11h 16m

San Diego

sáb. 12/13

10:45 pm-10:34 am

1 stop8h 49m

$229

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

sáb. 11/1

7:00 am-2:11 pm

1 stop10h 11m

San Diego

sáb. 11/8

6:30 am-5:24 pm

1 stop7h 54m

$230

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

mié. 12/3

6:00 am-11:43 am

1 stop8h 43m

San Diego

sáb. 12/6

6:30 am-8:05 pm

1 stop10h 35m

$233

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

lun. 11/3

4:24 pm-8:03 pm

Nonstop6h 39m

San Diego

mié. 11/12

9:15 am-5:55 pm

Nonstop5h 40m

$239

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

lun. 11/3

4:24 pm-8:03 pm

Nonstop6h 39m

San Diego

mié. 11/12

9:15 am-5:55 pm

Nonstop5h 40m

$246

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

sáb. 10/25

6:00 am-11:40 am

1 stop8h 40m

San Diego

mar. 10/28

8:40 pm-7:20 am

1 stop7h 40m

$262

ManchesterSan Diego

MHT - SAN

MHTSAN

Manchester

mar. 2/17

2:33 pm-8:33 pm

1 stop9h 00m

San Diego

mar. 2/24

8:35 am-6:53 pm

1 stop7h 18m

$307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from New Hampshire to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from New Hampshire during the month October is also very affordable. Most momondo users find prices during this month for around $347.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from New Hampshire to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $337. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $424. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $186. Flights in the morning are often more expensive with an average ticket price of $379.

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $370 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from New Hampshire for as low as $315 on momondo.

Cheap New Hampshire to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New Hampshire to San Diego

Fastest flight time	6h 05m
Direct flights	Every day
Airports in San Diego	1 airport

The fastest flight from New Hampshire to San Diego takes 6h 05m

Direct flights go from New Hampshire to San Diego every day.

There is 1 airport near San Diego: San Diego (SAN)

Search flight deals

When did momondo last update prices for flights from New Hampshire to San Diego Airport?
Prices for flights from New Hampshire to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from New Hampshire to San Diego Airport?
The number of operators available for flights from New Hampshire to San Diego Airport is 10 as of September 2025.
How old do you have to be to fly from New Hampshire to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from New Hampshire to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from New Hampshire to San Diego

Compare and see reviews for airlines that fly from New Hampshire to San Diego with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $286	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $327	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Southwest	PriceFrom $342	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights

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Julian

La Mesa

National City

Poway

Imperial Beach

San Ysidro

Borrego Springs

Lemon Grove

Alpine

Santee

Why use momondo?

Why should I use momondo to find a flight deal from New Hampshire to San Diego?

Finding the right flight to San Diego from New Hampshire is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Diego quick and easy, saving you time and money.

Can I find flights from New Hampshire to San Diego with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for New Hampshire to San Diego flights to just show those with flexible booking policies.

How can momondo help me find flights from New Hampshire to San Diego?

Once you have performed a search for New Hampshire to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from New Hampshire to San Diego right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from New Hampshire and alert you when they change.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from New Hampshire to San Diego from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New Hampshire to San Diego departing on 12/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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JetBlue flights from New Hampshire to San Diego

Our best JetBlue deals on New Hampshire to San Diego flight tickets

American Airlines flights from New Hampshire to San Diego

Our best American Airlines deals on New Hampshire to San Diego flight tickets

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Use the filters below to find and compare flights from New Hampshire to San Diego that are best for you.

See travel insights to San Diego from

How to get the cheapest flight ticket from New Hampshire to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from New Hampshire during the month October is also very affordable. Most momondo users find prices during this month for around $347.

What is the cheapest day to depart on your flight to San Diego?

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $186. Flights in the morning are often more expensive with an average ticket price of $379.

How far in advance should I book a flight to San Diego?

What is the cheapest airline that flies from New Hampshire to San Diego?

Alaska Airlines, Spirit Airlines, and Delta are the most popular carriers operating from New Hampshire to San Diego

What airlines fly to San Diego?

How many flights depart from New Hampshire to San Diego on average per week?

As of September 2025, there are 84 flights per week flying from New Hampshire to San Diego. The most common day of the week flights depart is Thu, with 21% of flights taking off on this day.

How long does it take to fly to San Diego?

On average, it takes 8h 21m to fly from New Hampshire to San Diego if you fly out of Manchester (the most popular airport in New Hampshire) and into San Diego (the most popular airport in San Diego). If you’re flying out of Lebanon and into San Diego, then the flight time is around 8h 59m.

Cheap New Hampshire to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New Hampshire to San Diego

Fastest flight time

Direct flights

Airports in San Diego

When did momondo last update prices for flights from New Hampshire to San Diego Airport?

How many operators does momondo search for flights from New Hampshire to San Diego Airport?

How old do you have to be to fly from New Hampshire to San Diego Airport?

What documentation or ID do you need to fly to San Diego Airport?

Best airlines flying from New Hampshire to San Diego

Compare and see reviews for airlines that fly from New Hampshire to San Diego with momondo

Traveling to a place near San Diego?

Why use momondo?

Why should I use momondo to find a flight deal from New Hampshire to San Diego?

Can I find flights from New Hampshire to San Diego with flexible booking policies on momondo?

How can momondo help me find flights from New Hampshire to San Diego?

I’m not ready to book a flight from New Hampshire to San Diego right now. Can momondo alert me if prices change?

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California