$145 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 9/12. 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$318
Lebanon
Lebanon2 stops$720
Portland
Portland2 stops$311
Boston
Boston1 stop$318
Lebanon
Lebanon2 stops$720
Portland
Portland2 stops$311

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

Wed, Sep 9 - Wed, Sep 16
Southwest Logo
10:30 pm - 9:40 am
SFO
-
MHT
8h 10m
1 stop
Southwest Logo
5:35 am - 11:35 am
MHT
-
SFO
9h 00m
1 stop
$294Southwest
Mon, Jun 29 - Mon, Jul 6
American Airlines Logo
9:10 pm - 4:53 pm
SFO
-
ORH
16h 43m
1 stop
American Airlines Logo
5:16 pm - 11:29 am
ORH
-
SFO
21h 13m
1 stop
$300American Airlines
Wed, Sep 9 - Wed, Sep 16
Southwest Logo
6:35 am - 9:10 pm
SFO
-
MHT
11h 35m
2 stops
Southwest Logo
6:15 pm - 11:05 pm
MHT
-
SFO
7h 50m
1 stop
$300Southwest
Wed, Sep 9 - Wed, Sep 16
Southwest Logo
7:40 am - 9:50 pm
SFO
-
MHT
11h 10m
2 stops
Southwest Logo
5:35 am - 2:05 pm
MHT
-
SFO
11h 30m
2 stops
$305Southwest
Wed, Jul 8 - Wed, Jul 15
JetBlue Logo
6:00 am - 2:41 pm
SFO
-
BOS
5h 41mnonstop
JetBlue Logo
8:55 pm - 12:30 am
BOS
-
SFO
6h 35mnonstop
$321JetBlue
Wed, Jul 8 - Thu, Aug 27
Delta Logo
7:10 am - 3:55 pm
SFO
-
BOS
5h 45mnonstop
Delta Logo
7:35 am - 11:09 am
BOS
-
SFO
6h 34mnonstop
$322Delta
Tue, Jul 7 - Wed, Jul 15
American Airlines Logo
12:48 am - 12:03 pm
SFO
-
BOS
8h 15m
1 stop
American Airlines Logo
6:05 am - 12:19 pm
BOS
-
SFO
9h 14m
1 stop
$326American Airlines
Tue, Aug 18 - Fri, Aug 28
Delta Logo
3:00 pm - 11:41 pm
SFO
-
BOS
5h 41mnonstop
Delta Logo
8:35 pm - 8:21 am
BOS
-
SFO
14h 46m
1 stop
$329Delta
Tue, Jun 16 - Wed, Jun 24
United Airlines Logo
4:15 pm - 1:11 am
SFO
-
BOS
5h 56mnonstop
United Airlines Logo
6:10 pm - 9:47 pm
BOS
-
SFO
6h 37mnonstop
$330United Airlines
Fri, Jun 12 - Tue, Jun 16
JetBlue Logo
11:48 pm - 1:36 pm
SFO
-
LEB
10h 48m
1 stop
JetBlue Logo
2:46 pm - 8:59 pm
LEB
-
SFO
9h 13m
1 stop
$763JetBlue
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.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to New Hampshire departing in September.

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

The average price for all round-trip flights from San Francisco to New Hampshire depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to New Hampshire is generally in the evening, when round-trip flights cost $401 on average. Morning departures are around 19% 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 $477.

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 March, when tickets cost $0 (return) on average. On the other hand, the most expensive months are February and December, when the average cost of round-trip tickets is $1,573 and $466 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 4 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$145
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 8% 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.

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 $222 one-way - $430 round-trip

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 4262 reviews
8.1Boarding
7.5Entertainment
8.0Comfort
8.6Crew
7.0Food
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

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

Information on your arrival and departure airports