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Cheap flights from New Hampshire to San Antonio from $88

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 9/6. 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

Southwest Logo
3:20 pm - 11:15 pmBOS-SAT
8h 55m1 stop
Southwest Logo
2:20 pm - 9:20 pmSAT-BOS
6h 00m1 stop
$175Southwest
Find Deal
Wed, Oct 22 - Tue, Oct 28
Southwest Logo
4:25 pm - 9:25 pmBOS-SAT
6h 00m1 stop
Southwest Logo
8:45 am - 9:30 pmSAT-BOS
11h 45m1 stop
$181Southwest
Find Deal
Sat, Sep 13 - Sat, Sep 20
Southwest Logo
5:20 am - 10:00 amBOS-SAT
5h 40m1 stop
Southwest Logo
3:45 pm - 10:30 pmSAT-BOS
5h 45m1 stop
$188Southwest
Find Deal
Tue, Sep 9 - Wed, Sep 10
Delta Logo
9:15 am - 1:02 pmBOS-SAT
4h 47mnonstop
Delta Logo
2:00 pm - 7:07 pmSAT-BOS
4h 07mnonstop
$239Delta
Find Deal
Sun, Dec 7 - Sun, Dec 14
American Airlines Logo
4:49 pm - 10:12 pmPWM-SAT
6h 23m1 stop
American Airlines Logo
9:21 am - 4:17 pmSAT-PWM
5h 56m1 stop
$239American Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6
Spirit Airlines Logo
5:45 am - 3:11 pmBOS-SAT
10h 26m1 stop
Spirit Airlines Logo
1:50 pm - 11:25 pmSAT-BOS
8h 35m1 stop
$245Spirit Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 9
Delta Logo
9:15 am - 12:55 pmBOS-SAT
4h 40mnonstop
Delta Logo
6:21 pm - 1:13 amSAT-BOS
5h 52m1 stop
$249Delta
Find Deal
Wed, Oct 22 - Mon, Oct 27
American Airlines Logo
8:35 am - 5:49 pmBOS-SAT
10h 14m1 stop
American Airlines Logo
3:38 pm - 11:44 pmSAT-BOS
7h 06m1 stop
$256American Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
Spirit Airlines Logo
5:45 am - 3:11 pmBOS-SAT
10h 26m1 stop
Spirit Airlines Logo
1:50 pm - 11:25 pmSAT-BOS
8h 35m1 stop
$264Spirit Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 9
Frontier Logo
10:53 am - 4:30 pmBOS-SAT
6h 37m1 stop
Frontier Logo
5:40 pm - 7:43 amSAT-BOS
13h 03m1 stop
$265Frontier
Find Deal
Mon, Sep 22 - Fri, Sep 26

Southwest flights from New Hampshire to San Antonio

Our best Southwest deals on New Hampshire to San Antonio flight tickets
Southwest
Oct 22
BOS3:20 pmBoston Logan Intl
8h 55m
1 stop
SAT11:15 pmSan Antonio
Oct 28
SAT2:20 pmSan Antonio
6h 00m
1 stop
BOS9:20 pmBoston Logan Intl
$175
Find similar
Southwest
Sep 13
BOS4:25 pmBoston Logan Intl
6h 00m
1 stop
SAT9:25 pmSan Antonio
Sep 20
SAT8:45 amSan Antonio
11h 45m
1 stop
BOS9:30 pmBoston Logan Intl
$181
Find similar
Southwest
Sep 9
BOS5:20 amBoston Logan Intl
5h 40m
1 stop
SAT10:00 amSan Antonio
Sep 10
SAT3:45 pmSan Antonio
5h 45m
1 stop
BOS10:30 pmBoston Logan Intl
$188
Find similar

Spirit Airlines flights from New Hampshire to San Antonio

Our best Spirit Airlines deals on New Hampshire to San Antonio flight tickets
Spirit Airlines
Nov 5
BOS5:45 amBoston Logan Intl
10h 26m
1 stop
SAT3:11 pmSan Antonio
Nov 9
SAT1:50 pmSan Antonio
8h 35m
1 stop
BOS11:25 pmBoston Logan Intl
$245
Find similar
Spirit Airlines
Nov 5
BOS5:45 amBoston Logan Intl
10h 26m
1 stop
SAT3:11 pmSan Antonio
Nov 9
SAT1:50 pmSan Antonio
8h 35m
1 stop
BOS11:25 pmBoston Logan Intl
$264
Find similar
Spirit Airlines
Oct 16
BOS6:10 amBoston Logan Intl
13h 02m
1 stop
SAT6:12 pmSan Antonio
Oct 20
SAT5:00 pmSan Antonio
19h 48m
1 stop
BOS1:48 pmBoston Logan Intl
$271
Find similar

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 August 7, 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

Wed 10/22

3:20 pm-11:15 pm

1 stop8h 55m

San Antonio

Tue 10/28

2:20 pm-9:20 pm

1 stop6h 00m

$175

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sat 9/13

4:25 pm-9:25 pm

1 stop6h 00m

San Antonio

Sat 9/20

8:45 am-9:30 pm

1 stop11h 45m

$181

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Tue 9/9

5:20 am-10:00 am

1 stop5h 40m

San Antonio

Wed 9/10

3:45 pm-10:30 pm

1 stop5h 45m

$188

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sun 12/7

9:15 am-1:02 pm

Nonstop4h 47m

San Antonio

Sun 12/14

2:00 pm-7:07 pm

Nonstop4h 07m

$239

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Sat 8/30

4:49 pm-10:12 pm

1 stop6h 23m

San Antonio

Sat 9/6

9:21 am-4:17 pm

1 stop5h 56m

$239

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Wed 11/5

5:45 am-3:11 pm

1 stop10h 26m

San Antonio

Sun 11/9

1:50 pm-11:25 pm

1 stop8h 35m

$245

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Wed 10/22

9:15 am-12:55 pm

Nonstop4h 40m

San Antonio

Mon 10/27

6:21 pm-1:13 am

1 stop5h 52m

$249

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Thu 9/4

8:35 am-5:49 pm

1 stop10h 14m

San Antonio

Mon 9/8

3:38 pm-11:44 pm

1 stop7h 06m

$256

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Wed 11/5

5:45 am-3:11 pm

1 stop10h 26m

San Antonio

Sun 11/9

1:50 pm-11:25 pm

1 stop8h 35m

$264

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Mon 9/22

10:53 am-4:30 pm

1 stop6h 37m

San Antonio

Fri 9/26

5:40 pm-7:43 am

1 stop13h 03m

$265

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 September, then book flights to San Antonio from New Hampshire during August instead. Flights to San Antonio in August, while not as cheap as those in September, still average around $304.

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 Friday when prices can be found for as low as $365. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $435.

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 $391. 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 $361 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 $315 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

Best Price Found

$88

Fastest flight time

4h 25m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from New Hampshire in the past 72 hours is $88. The best round-trip flight deal from New Hampshire to San Antonio found on momondo in the last 72 hours is $175.
The fastest flight from New Hampshire to San Antonio takes 4h 25m
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 $342Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $367Free CancellationRating
8.0
4,247 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
Kerrville
Boerne
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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