$109 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 5/28. 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.
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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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Flights Deals

Best New Hampshire Flight Deals from San Francisco

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Boston
Bostonnonstop$231
Lebanon
Lebanon1 stop$581
Portland
Portland1 stop$234
Boston
Bostonnonstop$231
Lebanon
Lebanon1 stop$581
Portland
Portland1 stop$234

Cheap Flight Deals from San Francisco to New Hampshire (SFO-USNH)

 
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.

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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Francisco to New Hampshire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Alaska Airlines Logo
8:47 pm - 5:40 amSFO-BOS
5h 53mnonstop
Alaska Airlines Logo
7:00 am - 10:49 amBOS-SFO
6h 49mnonstop
$231Alaska Airlines
Find Deal
Tue, Jun 10 - Wed, Jun 11
American Airlines Logo
5:15 am - 5:02 pmSFO-PWM
8h 47m1 stop
American Airlines Logo
5:18 pm - 10:40 pmPWM-SFO
8h 22m1 stop
$234American Airlines
Find Deal
Sun, Aug 31 - Sat, Sep 13
Hawaiian Airlines Logo
8:47 pm - 5:40 amSFO-BOS
5h 53mnonstop
Hawaiian Airlines Logo
7:59 pm - 11:44 pmBOS-SFO
6h 45mnonstop
$237Hawaiian Airlines
Find Deal
Tue, Jun 3 - Sat, Jun 7
 Logo
8:47 pm - 5:40 amSFO-BOS
5h 53mnonstop
 Logo
11:56 am - 10:48 pmBOS-SFO
13h 52m1 stop
Sat, May 31 - Fri, Jun 6
Frontier Logo
9:59 pm - 1:05 amSFO-BOS
24h 06m1 stop
Frontier Logo
8:00 am - 1:15 pmBOS-SFO
32h 15m1 stop
$240Frontier
Find Deal
Sat, May 17 - Tue, May 20
Hawaiian Airlines Logo
8:47 pm - 5:40 amSFO-BOS
5h 53mnonstop
Hawaiian Airlines Logo
8:40 am - 2:19 pmBOS-SFO
8h 39m1 stop
$241Hawaiian Airlines
Find Deal
Tue, Jun 10 - Wed, Jun 11
Frontier Logo
9:59 pm - 12:44 amSFO-BOS
23h 45m1 stop
Frontier Logo
8:00 am - 10:28 amBOS-SFO
29h 28m1 stop
$244Frontier
Find Deal
Sun, May 18 - Wed, May 21
American Airlines Logo
5:25 am - 5:11 pmSFO-PWM
8h 46m1 stop
American Airlines Logo
4:02 pm - 10:43 pmPWM-SFO
9h 41m1 stop
$247American Airlines
Find Deal
Mon, Jun 30 - Fri, Jul 4
United Airlines Logo
9:15 pm - 9:24 amSFO-PWM
9h 09m1 stop
United Airlines Logo
6:23 pm - 11:56 pmPWM-SFO
8h 33m1 stop
$277United Airlines
Find Deal
Mon, Sep 15 - Thu, Sep 25
United Airlines Logo
11:57 pm - 10:42 amSFO-MHT
7h 45m1 stop
United Airlines Logo
9:40 am - 5:49 pmMHT-SFO
11h 09m1 stop
$343United Airlines
Find Deal
Mon, Sep 15 - Thu, Sep 25
Useful Info

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 $312 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $467 and $447 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 Tuesday 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. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$109
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from San Francisco to Portland

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 in the evening, when round-trip flights cost $371 on average. Morning departures are around 17% 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 $433.

Top tips for finding cheap flights to New Hampshire

  • Looking for a cheap flight? 25% of our users found tickets from San Francisco to the following destinations at these prices or less: Boston $167 one-way - $321 round-trip

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.
7.4
United AirlinesOverall score based on 8701 reviews
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
7.7Boarding
Airline reviews

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

2.0 MediocreJane, May 2025SFO - LHR
Read more United Airlines reviews

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Checkin was painful and slow! Lady didn’t seem to know what was going on and couldn’t explain the delay. Seemed ahe couldnt see the computer scree and we couldn’t hear her talk through her mask.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

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

Information on your arrival and departure airports

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