$107 Find Cheap Flights from San Antonio to New Hampshire

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to New Hampshire departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to New Hampshire

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to New Hampshire, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to New Hampshire, as well as popular online travel agencies
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Cheap Flights from San Antonio to New Hampshire

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Boston2 stops$229
Portland
Portland1 stop$364
Boston
Boston2 stops$229
Portland
Portland1 stop$364

Book Cheap San Antonio to New Hampshire Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to New Hampshire that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to New Hampshire

Sat, Apr 18 - Tue, Apr 21
Multiple Airlines Logo
4:04 pm - 11:00 am
SAT
-
BOS
17h 56m
2 stops
Multiple Airlines Logo
8:16 pm - 11:51 pm
BOS
-
SAT
28h 35m
1 stop
$229Multiple Airlines
Tue, Apr 14 - Thu, Apr 23
Spirit Airlines Logo
1:22 pm - 10:29 am
SAT
-
BOS
20h 07m
1 stop
Spirit Airlines Logo
8:16 pm - 11:51 pm
BOS
-
SAT
28h 35m
1 stop
$236Spirit Airlines
Thu, Apr 2 - Sun, Apr 5
Spirit Airlines Logo
10:22 am - 11:59 pm
SAT
-
BOS
12h 37m
1 stop
Spirit Airlines Logo
5:45 am - 9:27 am
BOS
-
SAT
28h 42m
1 stop
$238Spirit Airlines
Tue, Mar 31 - Tue, Apr 7
Southwest Logo
5:25 am - 2:00 pm
SAT
-
MHT
7h 35m
1 stop
Southwest Logo
7:30 am - 12:55 pm
MHT
-
SAT
6h 25m
1 stop
$359Southwest
Sat, Apr 18 - Sat, Apr 25
American Airlines Logo
1:19 pm - 11:27 pm
SAT
-
PWM
9h 08m
1 stop
American Airlines Logo
3:02 pm - 8:58 pm
PWM
-
SAT
6h 56m
1 stop
$364American Airlines
Tue, Mar 31 - Tue, Apr 7
Southwest Logo
5:25 am - 2:00 pm
SAT
-
MHT
7h 35m
1 stop
Southwest Logo
7:30 am - 2:50 pm
MHT
-
SAT
8h 20m
2 stops
$364Southwest
Fri, Apr 17 - Tue, Apr 21
Delta Logo
5:10 am - 12:05 pm
SAT
-
PWM
5h 55m
1 stop
Delta Logo
5:21 am - 11:21 am
PWM
-
SAT
7h 00m
1 stop
$382Delta
Tue, Apr 21 - Fri, Apr 24
Delta Logo
5:10 am - 4:45 pm
SAT
-
PWM
10h 35m
2 stops
Delta Logo
4:43 pm - 11:08 pm
PWM
-
SAT
7h 25m
1 stop
$387Delta
Tue, Apr 21 - Fri, Apr 24
American Airlines Logo
7:05 am - 2:37 pm
SAT
-
PWM
6h 32m
1 stop
American Airlines Logo
6:01 pm - 11:59 pm
PWM
-
SAT
6h 58m
1 stop
$388American Airlines
Tue, May 12 - Wed, May 13
United Airlines Logo
6:49 am - 6:56 pm
SAT
-
MHT
11h 07m
2 stops
United Airlines Logo
2:36 pm - 8:35 pm
MHT
-
SAT
6h 59m
1 stop
$454United Airlines
Booking Insights

KAYAK's insights & trends for San Antonio to New Hampshire flights

Get data-powered insights and trends into flights from San Antonio to New Hampshire to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Antonio to New Hampshire?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to New Hampshire, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Antonio to New Hampshire is August, when tickets cost $304 (return) on average. On the other hand, the most expensive months are October and November, when the average cost of round-trip tickets is $409 and $407 respectively.

What’s the cheapest day of the week to fly from San Antonio to New Hampshire?

The average price of all round-trip flights from San Antonio to New Hampshire clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to New Hampshire on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from San Antonio to New Hampshire. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Antonio to New Hampshire, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Antonio to New Hampshire, you should book around 5 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$107
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from San Antonio to Boston

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from San Antonio to New Hampshire?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to New Hampshire.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to New Hampshire?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Antonio to New Hampshire is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to New Hampshire?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Antonio to New Hampshire with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to New Hampshire?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Antonio to New Hampshire up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to New Hampshire?

    The cheapest time of day to fly to New Hampshire is generally in the afternoon, when round-trip flights cost $379 on average. Morning departures are around 20% more expensive than evening flights, on average. The most expensive time of day to fly to New Hampshire is generally in the morning, which is peak travel time and where the average cost of a ticket is $583.

Reviews of the top airlines flying from San Antonio to New Hampshire

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to New Hampshire. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Antonio to New Hampshire? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4309 reviews
7.5Entertainment
8.1Boarding
7.0Food
8.0Comfort
8.6Crew
Airline reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

4.0 OkayEmma, Mar 2026
LAX - PHX
Read more Southwest reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The last 3 flights between BWI and BDL canceled the beverage service mid- way. Just say up front that the fight is too short. Thanks!

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

Great vacation. Can't wait till next year for another one.

Forced to check bags. Crew uninterested in collecting trash. Unclean seats.

Flight pulled out on time but sat on runway for 30 mins. It was extremely cold in the aircraft despite wearing a winter coat. Surprisingly they had a vegetarian meal but could have some better snack choices for a 8 hour flight.

We had a male flight attendant who was super attentive and wonderful! Very professional. I have both gluten and dairy intolerance, and was only able to get a gluten free part, and not the dairy free part of the meal. Easy to order ahead of time and I appreciate being able to do that.

It was a train wreck but on an airplane. First off, flight was delayed then we board only to hear two announcements, First weather delays in Orlando and second backup battery warning on emergency lights. After sitting on the plane for almost 2 hours they have us deplane due to the maintenance issue. We were told they were getting another plane. In the mean time, I notice another American- Orlando flight and ask the gate agent if I can switch. He says he cant help me and I'd have to walk to A13 from A37. Really!? I get down there and get a seat only to get an announcement my original flight was RE-boarding. The Then inflight there's no communication and I notice on flightaware were circling over the Gulf of America. I call the flight attendant and of course she has no clue and apparently 5m later the pilot finally tells us about another delay. Why does American always have these service and delay issues? They are my LAST choice in flights now!

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Never ontime and always delays. Long waits for customer service and often app doesn’t work

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

Flight was on time and there was an empty seat next to me. That makes for a good flight!

Everything you need to know for your flight from San Antonio to New Hampshire

Information on your arrival and departure airports