$103 Find Cheap Flights from San Antonio to New Hampshire - Compare and Save

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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 5 days
Sort by: Cheapest
Portland
5h 55m2 stops
from $269per person
Boston
4h 21mNonstop
from $270per person
Manchester
5h 45m2 stops
from $299per person
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.

How much is a round-trip flight from San Antonio to New Hampshire?

Flight prices are below average for this route right now.

Flights to New Hampshire from San Antonio usually cost between $367 and $507 in October.
The lowest price found in the past 5 days was $299 on American Airlines (Oct 14-Oct 24).

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 $458 on average. Morning departures are around 9% 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 $637.

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

The cheapest month for flights from San Antonio to New Hampshire is March, when tickets cost $0 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $791 and $766 respectively.

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

If your flying dates are flexible, you should consider flying to New Hampshire on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday 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 Mondays for the best deals.

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

To get a below average price on the flight from San Antonio to New Hampshire, you should book around 4 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low season

January

Cheapest flight

$103
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 12% 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.

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

 
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 4188 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
Airline reviews

No wifi, seems to be very common with Southwest currently. Everything else was normal.

8.0 ExcellentSean, Jul 2026
Read more Southwest reviews

No wifi, seems to be very common with Southwest currently. Everything else was normal.

Overall good, just screaming kids in the area the whole flight.

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

Great job! My family doesnt fly often but we felt safe 100%

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

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

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

It was good. I wish you had gluten free snacks for my husband.

Really full flight, checked in ASAP and still mid Cs.

We had to de-board do to maintenance and there was ZERO help with getting rebooked. The flight was delayed by over 24 hours. Quite ridiculous. When I. called Kayak to get help to rebook, they said they couldn't and that it had to be done at the American counter that didn't exist without going outside TSA security, which I did.

I spent 12 hrs getting home and had a direct flight that should have taken no more than 3 hrs. The first plane has an issue, was on the plane for over an hour before we had to deplane and move from A19 to A39 to board another plane. Boarded that plane to wait for another 45 minutes for it to also have an issue where we had to deboard. After everyone had went to get something to eat the food vouchers came out and half of us could not use. We then had to wait until 8:00 pm to board and finally got to Columbus Ohio at midnight. We were told that our luggage was on baggage 5. I waited 30 minutes to then realize my luggage was on 4. No notification sent. Horrible communication and I have a priority status.

As with most flights these days it was delayed by about 30 min.

We were stuck with no gate upon landing for 90 minutes. Unacceptable.

The forward head smelled putrid and urine soaked, worse than any head in even transoceanic flights. The wifi stopped working after about an hour of flight.

Every time I fly American they end up delaying the flight significantly and claim it’s due to weather, however, it was a beautiful clear sunny day in Dallas today. Unfortunately, these significant delays occur more often than not which I don’t experience on any other airlines. Yet American Airlines consistently faults the weather and never holds itself accountable for the poor and unorganized service. I will keep my business with Delta, United, and JetBlue going forward. American Airlines should not be part of the “Big 3” considering United and Delta are light years ahead. JetBlue is also much ahead of American. American needs to step up big time

Seems like the ac wasn’t working. It was super hot

Deplaning time. Having to wait 10 to 25 minutes after boarding to leave the gate. Having to wait 10 minutes to park at the gate to deplane.☹️

When you pay for Premium Economy on an 787 and you’re promised amenities for the extra money, you expect them to work. They didn’t. USB connector wouldn’t charge continuously. 120v outlet wouldn’t hold anything you plugged into it. The adapter would just fall out. The noise canceling headphones stopped noise cancelling in the first 15 minutes for EVERYONE. No one on the plane knew how to fix it so I couldn’t listen to any movies. I just put in my AirPods and went to sleep. Very unhappy with the crappy Panasonic entertainment system. I won’t buy premium again.

My first time flying American Airlines, my first flight to CLT was wonderful and flight attendants was nice and had great customer service. My second flight from CLT to NY was very delayed due to whatever reason the crew was not greeting other than that I’m rate 8 .

More options for your flight from San Antonio to New Hampshire

Complete your trip to New Hampshire with a hotel stay or car rental