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Cheap flights from New Hampshire to San Antonio from $46

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 Antonio departing on 12/31. 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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Find the cheapest flights from New Hampshire to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
3:55 pm - 6:32 pmBOS-SAT
27h 37m3 stops
Spirit Airlines Logo
6:45 am - 5:31 pmSAT-BOS
33h 46m3 stops
$307Spirit Airlines
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Sat, Nov 15 - Tue, Nov 18
Multiple Airlines Logo
6:00 am - 4:08 pmBOS-SAT
11h 08m1 stop
Multiple Airlines Logo
8:33 pm - 8:49 pmSAT-BOS
23h 16m2 stops
$308Multiple Airlines
Find Deal
Fri, Nov 28 - Mon, Dec 1
Delta Logo
9:20 am - 1:17 pmBOS-SAT
4h 57mnonstop
Delta Logo
5:10 am - 12:35 pmSAT-BOS
6h 25m1 stop
$309Delta
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Wed, Dec 17 - Thu, Dec 25
Delta Logo
7:00 am - 1:16 pmBOS-SAT
7h 16m1 stop
Delta Logo
5:20 am - 12:00 pmSAT-BOS
5h 40m1 stop
$319Delta
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Tue, Apr 28 - Sat, May 9
United Airlines Logo
6:00 am - 3:46 pmPWM-SAT
10h 46m2 stops
United Airlines Logo
2:10 pm - 9:14 pmSAT-PWM
6h 04m1 stop
$321United Airlines
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Sat, Feb 7 - Sat, Feb 14
Frontier Logo
6:00 am - 4:08 pmBOS-SAT
11h 08m1 stop
Frontier Logo
5:07 pm - 12:44 amSAT-BOS
6h 37m1 stop
$322Frontier
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Fri, Nov 21 - Mon, Nov 24
Southwest Logo
7:20 am - 2:30 pmBOS-SAT
8h 10m2 stops
Southwest Logo
5:25 am - 2:45 pmSAT-BOS
8h 20m1 stop
$324Southwest
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Tue, Dec 9 - Fri, Dec 12
United Airlines Logo
6:00 am - 3:46 pmPWM-SAT
10h 46m2 stops
United Airlines Logo
2:24 pm - 11:20 pmSAT-PWM
7h 56m2 stops
$326United Airlines
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Sat, Feb 7 - Sat, Feb 14
Southwest Logo
5:10 am - 11:10 amBOS-SAT
7h 00m1 stop
Southwest Logo
1:50 pm - 8:30 pmSAT-BOS
5h 40m1 stop
$327Southwest
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Sat, Jan 24 - Sat, Jan 24
Frontier Logo
6:00 am - 4:08 pmBOS-SAT
11h 08m1 stop
Frontier Logo
7:39 pm - 10:04 amSAT-BOS
13h 25m1 stop
$362Frontier
Find Deal
Fri, Nov 21 - Sun, Nov 23

Delta flights from New Hampshire to San Antonio

Our best Delta deals on New Hampshire to San Antonio flight tickets
Delta
Dec 17
BOS9:20 amBoston Logan Intl
4h 57m
SAT1:17 pmSan Antonio
Dec 25
SAT5:10 amSan Antonio
6h 25m
1 stop
BOS12:35 pmBoston Logan Intl
$309
Find similar
Delta
Apr 28
BOS7:00 amBoston Logan Intl
7h 16m
1 stop
SAT1:16 pmSan Antonio
May 9
SAT5:20 amSan Antonio
5h 40m
1 stop
BOS12:00 pmBoston Logan Intl
$319
Find similar
Delta
Dec 18
BOS9:20 amBoston Logan Intl
4h 57m
SAT1:17 pmSan Antonio
Dec 22
SAT6:22 pmSan Antonio
5h 45m
1 stop
BOS1:07 amBoston Logan Intl
$339
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United Airlines flights from New Hampshire to San Antonio

Our best United Airlines deals on New Hampshire to San Antonio flight tickets
United Airlines
Feb 7
PWM6:00 amPortland
10h 46m
2 stops
SAT3:46 pmSan Antonio
Feb 14
SAT2:10 pmSan Antonio
6h 04m
1 stop
PWM9:14 pmPortland
$321
Find similar
United Airlines
Feb 7
PWM6:00 amPortland
10h 46m
2 stops
SAT3:46 pmSan Antonio
Feb 14
SAT2:24 pmSan Antonio
7h 56m
2 stops
PWM11:20 pmPortland
$326
Find similar
United Airlines
Dec 2
PWM4:25 pmPortland
7h 35m
1 stop
SAT11:00 pmSan Antonio
Dec 4
SAT11:47 amSan Antonio
10h 22m
2 stops
PWM11:09 pmPortland
$371
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momondo Fare Finder

 
Customize your flight search to find flights from New Hampshire to San Antonio 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, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from New Hampshire to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sat 11/15

3:55 pm-6:32 pm

3 stops27h 37m

San Antonio

Tue 11/18

6:45 am-5:31 pm

3 stops33h 46m

$307

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Fri 11/28

6:00 am-4:08 pm

1 stop11h 08m

San Antonio

Mon 12/1

8:33 pm-8:49 pm

2 stops23h 16m

$308

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Wed 12/17

9:20 am-1:17 pm

Nonstop4h 57m

San Antonio

Thu 12/25

5:10 am-12:35 pm

1 stop6h 25m

$309

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Tue 4/28

7:00 am-1:16 pm

1 stop7h 16m

San Antonio

Sat 5/9

5:20 am-12:00 pm

1 stop5h 40m

$319

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Sat 2/7

6:00 am-3:46 pm

2 stops10h 46m

San Antonio

Sat 2/14

2:10 pm-9:14 pm

1 stop6h 04m

$321

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Fri 11/21

6:00 am-4:08 pm

1 stop11h 08m

San Antonio

Mon 11/24

5:07 pm-12:44 am

1 stop6h 37m

$322

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Tue 12/9

7:20 am-2:30 pm

2 stops8h 10m

San Antonio

Fri 12/12

5:25 am-2:45 pm

1 stop8h 20m

$324

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Sat 2/7

6:00 am-3:46 pm

2 stops10h 46m

San Antonio

Sat 2/14

2:24 pm-11:20 pm

2 stops7h 56m

$326

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sat 1/24

5:10 am-11:10 am

1 stop7h 00m

San Antonio

Sat 1/24

1:50 pm-8:30 pm

1 stop5h 40m

$327

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Fri 11/21

6:00 am-4:08 pm

1 stop11h 08m

San Antonio

Sun 11/23

7:39 pm-10:04 am

1 stop13h 25m

$362

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

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

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 Antonio?

If you aren’t able to travel during the month of January, then book flights to San Antonio from New Hampshire during July instead. Flights to San Antonio in July, while not as cheap as those in January, still average around $329.

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

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $372. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $457.

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

According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from New Hampshire to San Antonio in the afternoon for as low as $292. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $400. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to San Antonio from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $380 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from New Hampshire for as low as $324 on momondo.

Cheap New Hampshire to San Antonio flight deals and tips

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

Fastest flight time

4h 37m

Direct flights

Every day

Airports in San Antonio

1 airport
The fastest flight from New Hampshire to San Antonio takes 4h 37m
Direct flights go from New Hampshire to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)
Search flight deals

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

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

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

  • How old do you have to be to fly from New Hampshire to San Antonio 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 Antonio Airport.

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

    The travel and health documents required for your trip to San Antonio 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 Antonio 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 Antonio

Compare and see reviews for airlines that fly from New Hampshire to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $326Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
United AirlinesPriceFrom $332Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,243 reviews
Search Southwest flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Boerne
Kerrville
Schertz
Pleasanton

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Antonio from New Hampshire.

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

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

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

momondo provides multiple filters to help you find the best flight to San Antonio from New Hampshire. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from New Hampshire to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

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