$126 Find Cheap Flights from San Francisco 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 Francisco to New Hampshire departing on 4/5. 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 Francisco 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 Francisco to New Hampshire, as well as popular online travel agencies
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Flight Deals

Cheap Flights from San Francisco to New Hampshire

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Boston1 stop$219
Lebanon
Lebanon1 stop$505
Portland
Portland1 stop$251
Boston
Boston1 stop$219
Lebanon
Lebanon1 stop$505
Portland
Portland1 stop$251

Book Cheap San Francisco 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 Francisco 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 Francisco to New Hampshire

Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
10:38 pm - 11:13 am
SFO
-
BOS
9h 35m
1 stop
Multiple Airlines Logo
10:30 am - 2:00 pm
BOS
-
SFO
6h 30mnonstop
$219Multiple Airlines
Wed, Mar 18 - Tue, Apr 14
Multiple Airlines Logo
7:00 am - 11:59 pm
SFO
-
BOS
13h 59m
1 stop
Multiple Airlines Logo
6:00 am - 5:34 pm
BOS
-
SFO
14h 34m
1 stop
$220Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Frontier Logo
10:23 pm - 11:45 am
SFO
-
BOS
10h 22m
1 stop
Frontier Logo
6:00 am - 5:34 pm
BOS
-
SFO
14h 34m
1 stop
$221Frontier
Tue, Apr 7 - Tue, Apr 14
Frontier Logo
10:03 pm - 11:45 am
SFO
-
BOS
10h 42m
1 stop
Frontier Logo
6:00 am - 5:34 pm
BOS
-
SFO
14h 34m
1 stop
$222Frontier
Wed, Apr 8 - Wed, Apr 15
Frontier Logo
10:23 pm - 11:45 am
SFO
-
BOS
10h 22m
1 stop
Frontier Logo
6:00 am - 5:34 pm
BOS
-
SFO
14h 34m
1 stop
$223Frontier
Tue, Jun 2 - Wed, Jun 10
Alaska Airlines Logo
10:14 am - 11:59 pm
SFO
-
BOS
10h 45m
1 stop
Alaska Airlines Logo
7:03 am - 3:34 pm
BOS
-
SFO
11h 31m
1 stop
$227Alaska Airlines
Wed, Apr 1 - Tue, Apr 7
American Airlines Logo
9:14 am - 10:50 pm
SFO
-
PWM
10h 36m
1 stop
American Airlines Logo
1:18 pm - 7:07 pm
PWM
-
SFO
8h 49m
1 stop
$251American Airlines
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
5:45 am - 6:58 pm
SFO
-
PWM
10h 13m
1 stop
American Airlines Logo
6:01 pm - 11:59 pm
PWM
-
SFO
8h 58m
1 stop
$285American Airlines
Wed, Apr 8 - Tue, Apr 14
Southwest Logo
9:15 pm - 8:30 am
SFO
-
MHT
8h 15m
1 stop
Southwest Logo
12:45 pm - 9:25 pm
MHT
-
SFO
11h 40m
1 stop
$321Southwest
Wed, Apr 8 - Tue, Apr 14
Southwest Logo
9:15 pm - 8:30 am
SFO
-
MHT
8h 15m
1 stop
Southwest Logo
3:45 pm - 11:15 pm
MHT
-
SFO
10h 30m
2 stops
$326Southwest
Booking Insights

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

Get data-powered insights and trends into flights from San Francisco 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 Francisco 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 Francisco 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 Francisco to New Hampshire is January, when tickets cost $337 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $467 and $437 respectively.

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

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

Your flight ticket price will generally be cheaper if you fly to New Hampshire on a Wednesday and more expensive on a Sunday. On your return trip to San Francisco, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

How far in advance should I book a flight from San Francisco 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 Francisco 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 Francisco to New Hampshire, you should book around 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$126
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from San Francisco to Boston

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from San Francisco 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 Francisco to New Hampshire.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco 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 Francisco 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 Francisco 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 Francisco 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 Francisco 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 at night, when round-trip flights cost $387 on average. Morning departures are around 13% 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 $439.

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

 
See real verified KAYAK customer reviews for airlines flying from San Francisco 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 Francisco 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 4300 reviews
8.1Boarding
8.6Crew
7.5Entertainment
8.0Comfort
7.0Food
Airline reviews

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.

4.0 OkayDaniel, Feb 2026
LGB - PHX
Read more Southwest reviews

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.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

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.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

The flight was really crowded. Flight attendants were just ok.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

It would be nice to have some low carb options in the snacks.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

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

Information on your arrival and departure airports