SFO - BOI

$49 Find Cheap Flights from San Francisco to Boise

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 Boise departing on 1/21. 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 Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Boise, 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 Boise, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$97
Overall average: $228
United Airlines
Wed 1/7Sat 1/10
SFO - BOI • Non-stop
Cheapest non-stop
$97
Typical prices: $156-$377
Alaska Airlines
Wed 1/7Tue 1/13
SFO - BOI • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom on this route.
Alaska's Wine Flies Free allows free wine check-in.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
United Airlines
Cheapest • from $97 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 61% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 22% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Boise!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Francisco to Boise (SFO-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Boise 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 Boise

Wed, Jan 7 - Sat, Jan 10
United Airlines Logo
9:00 pm - 11:48 pm
SFO
-
BOI
1h 48mnonstop
United Airlines Logo
2:20 pm - 3:29 pm
BOI
-
SFO
2h 09mnonstop
$97United Airlines
Wed, Jan 7 - Sun, Jan 11
United Airlines Logo
6:35 pm - 9:23 pm
SFO
-
BOI
1h 48mnonstop
United Airlines Logo
10:48 am - 12:05 pm
BOI
-
SFO
2h 17mnonstop
$107United Airlines
Tue, Jan 6 - Sat, Jan 10
Alaska Airlines Logo
7:25 pm - 10:07 pm
SFO
-
BOI
1h 42mnonstop
Alaska Airlines Logo
8:10 am - 9:16 am
BOI
-
SFO
2h 06mnonstop
$122Alaska Airlines
Wed, Jan 7 - Sat, Jan 10
Southwest Logo
11:30 am - 8:45 pm
SFO
-
BOI
8h 15m2 stops
Southwest Logo
1:45 pm - 8:05 pm
BOI
-
SFO
7h 20m1 stop
$126Southwest
Tue, Jan 13 - Wed, Jan 14
Alaska Airlines Logo
7:24 pm - 10:09 pm
SFO
-
BOI
1h 45mnonstop
Alaska Airlines Logo
7:55 pm - 5:48 pm
BOI
-
SFO
22h 53m1 stop
$131Alaska Airlines
Tue, Jan 6 - Sat, Jan 10
Alaska Airlines Logo
10:13 am - 4:06 pm
SFO
-
BOI
4h 53m1 stop
Alaska Airlines Logo
8:10 am - 9:16 am
BOI
-
SFO
2h 06mnonstop
$137Alaska Airlines
Sat, Jan 3 - Wed, Jan 7
Southwest Logo
5:00 am - 11:30 am
SFO
-
BOI
5h 30m1 stop
Southwest Logo
6:05 am - 10:55 am
BOI
-
SFO
5h 50m1 stop
$138Southwest
Sat, Jan 17 - Sat, Jan 24
Hawaiian Airlines Logo
7:24 pm - 10:09 pm
SFO
-
BOI
1h 45mnonstop
Hawaiian Airlines Logo
8:10 am - 9:16 am
BOI
-
SFO
2h 06mnonstop
$139Hawaiian Airlines
Sat, Jan 3 - Wed, Jan 7
Southwest Logo
5:00 am - 11:30 am
SFO
-
BOI
5h 30m1 stop
Southwest Logo
7:45 am - 2:20 pm
BOI
-
SFO
7h 35m2 stops
$143Southwest
Wed, Jan 7 - Sat, Jan 10
Southwest Logo
3:00 pm - 10:30 pm
SFO
-
BOI
6h 30m1 stop
Southwest Logo
11:50 am - 4:35 pm
BOI
-
SFO
5h 45m1 stop
$145Southwest
Booking Insights

KAYAK's insights & trends for San Francisco to Boise flights

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

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

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

If your flying dates are flexible, you should consider flying to Boise on a Tuesday, 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 Francisco to Boise. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

What is the cheapest month to fly from San Francisco to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Boise, 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 Boise is April, where tickets cost $211 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $367 and $309 respectively.

How far in advance should I book a flight from San Francisco to Boise?

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 Boise, 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 Boise, you should book around 4 weeks before departure, which saves you about 61% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

Expert advice for your flight from San Francisco to Boise

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United offers Economy Plus seats with up to 6 inches more legroom than standard economy.


United's Priority Boarding can help ensure overhead bin space for your carry-on.

Alaska Airlines

Alaska Airlines offers a 20-minute baggage guarantee for quick luggage retrieval.


Alaska Airlines' Wine Flies Free program allows free wine check-in from select airports.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Good to know

Low seasonJanuary
Cheapest flight$49
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from San Francisco to Boise

When to book flights from San Francisco to Boise

Are your dates flexible? Find out the best times to travel from San Francisco to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Boise

  • Which airline(s) should I book when flying with kids from San Francisco to Boise?

    Out of the several airlines flying from San Francisco to Boise, consider American Airlines when traveling with your kids. The airline has the most extra legroom and spacious seats, which ensure you and your child remain comfortable the entire journey. Apart from this, parents accompanied by their kids enjoy priority boarding and deplaning.

  • Can I get eco-friendly flights from San Francisco to Boise?

    Yes. All the airlines flying from San Francisco to Boise works towards reducing their overall carbon emission. However, United Airlines offers the most eco-friendly flights on this route. The airline has made significant efforts toward the adoption of fuel-efficient engines and the use of sustainable aviation fuel.

  • Which other cities are served by Boise Airport?

    Boise Airport (BOI) serves a number of other cities in addition to Boise. Some of these cities in Garden City, Eagle, and Meridian. Therefore, when you book your flight from San Francisco to Boise, you get yourself in a better position to easily connect to these cities.

  • How can I get out of Boise Airport upon landing from San Francisco?

    Greyhound Buses and Salt Lake Express Buses offer affordable and convenient means of transport from the airport to the city center or any other part of the city. It takes about 25 minutes to connect from Boise Airport to the city center by bus. Apart from buses, you can also use a taxi or a rental car to get out of the airport.

  • What is the cheapest flight from San Francisco to Boise?

    In the last 3 days, the lowest price for a flight from San Francisco to Boise was $49 for a one-way ticket and $97 for a round-trip.

  • Do I need a passport to fly between San Francisco and Boise?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to Boise?

    Alaska Airlines, Hawaiian Airlines, and American Airlines offer inflight Wi-Fi service on the San Francisco to Boise flight route.

  • Which aircraft models fly most regularly from San Francisco to Boise?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the San Francisco to Boise flight route.

  • Which airline alliances offer flights from San Francisco to Boise?

    oneworld, and Star Alliance are the airline alliances operating flights between San Francisco and Boise, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from San Francisco to Boise?

    There are nonstop flights from San Francisco to Boise on a daily basis.

  • Which is the best airline for flights from San Francisco to Boise, Alaska Airlines or Hawaiian Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to Boise are Alaska Airlines and Hawaiian Airlines. With an average price for the route of $265 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Hawaiian Airlines is also a great choice for the route, with an average price of $217 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Francisco to Boise?

    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 Boise.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from San Francisco 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 Boise?

    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 to Boise with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and BOI can sometimes prove cheaper using this method.

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

    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 to Boise from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Boise

  • Looking for a cheap flight? 25% of our users found flights on this route for $157 or less one-way and $193 or less round-trip.
  • Flights from San Francisco to Boise have San Francisco International Airport (SFO) and Boise Airport (BOI) as the main departure and destination airports, respectively. However, those in the Eastern region of the San Francisco Bay Area have the option of having Oakland International Airport (OAK) as the departure airport when flying to Boise. Since the route that has OAK as the departure airport is less popular, choosing to fly along it exposes you to cheaper flight deals.
  • Booking either United Airlines or Alaska Airlines, which have San Francisco International Airport (SFO) as their hub, for your flight to Boise comes with a number of benefits. Key among these benefits is that you can reliably get a flight that is convenient to your schedule. This is because these airlines have quite high frequencies of daily flights from SFO to BOI.
  • You can conveniently fly with your pet(s) from San Francisco to Boise since all airlines along this route have pet-friendly policies. However, if you book Alaska Airlines, you will enjoy lower pet charges compared to other airlines. Apart from this, Alaska Airlines allows pet(s) to fly in-cabin conveniently provided their weight combined with the weight of their carrier does not exceed 20 lbs.
  • When connecting to San Francisco International Airport (SFO) to catch up with your flight to Boise, buses provide the most affordable and reliable means of transport. In particular, Bus Line KX, 292, 397, and 398 connect directly to the airport terminals from downtown San Francisco.
  • You can fly First Class from San Francisco to Boise at a subsidized price if you take advantage of the Class-Upgrade option offered by United Airlines and American Airlines. Both airlines give their customers who book Economy a chance to upgrade to First class by topping up a small amount of money on their ticket.

Prefer to fly direct from San Francisco to Boise?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Boise Air Term. Gowen Fld.
Find which airlines fly direct from San Francisco Airport to Boise Air Term. Gowen Fld Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Boise Air Term. Gowen Fld

Monday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Tuesday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Wednesday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Thursday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Friday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Saturday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Sunday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

See more direct flights

Direct returns

Boise Air Term. Gowen Fld to San Francisco

Monday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Tuesday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Wednesday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Thursday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Friday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Saturday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Sunday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

See more direct flights

Reviews of the top 3 airlines serving from San Francisco to Boise

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Boise. 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 Boise? 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
Alaska AirlinesOverall score based on 11402 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
7.1Food
Airline reviews

Flight crew and flight were good. But it departed two hours late.

6.0 GoodAnonymous, Dec 2025
SFO - BOI
Read more Alaska Airlines reviews

Flight crew and flight were good. But it departed two hours late.

The ground crew did not supply drink or snacks during the layover in SFO. So there weren't many options. Otherwise, it was all great.

I love a red eye flight. No lines to wait in. Lots of turbulence on the flight and a very shaky landing.

Pretzels are always a disappointment. Cheezits, Sun Chips, trail mix, anything else would be nice.

Flight was delayed 14 hours! We missed an entire day of our vacation and had to pay for hotel that we didn’t use

Could not check in online. Called airline twice, thinking Hawaiian Airlines could check me in during phone call. NO. In 2nd phone call, Customer Service explained that due to “transition period” of Hawaiian Airlines/Alaska Airlines merger, I could only check in at the airport. In addition, flight to Kahului was late at arrival gate; I made connection to Lihue but my bag did not, so I had to return to Lihue airport a couple hours after my arrival to retrieve the bag.

I still in San Francisco😡the flight has delay and lm not sure l can back to Seattle or not😡lm here from 7.30pm and still waiting😡 l never will use of Kayak.

On time boarding, take off and landing. Will fly again with Alaska Airlines.

Flight was smooth, pleasant passengers and crew. Enjoyed the experience

Flight attendant was awful, I felt second hand embarrassment with every one of her interactions with people onboard. She was so incredibly rude every chance she got

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

The food options were limited and very specific. Some type of entertainment option for a 4.5 hour flight would have been nice.

The Kayak confirmation number did not work for checking in the day before. I checked in at 8.30 using my ticket number. When I arrived at the airport, I was informed that the flight was overbooked, and since I had checked in late, I did not have a seat. The Next flight was not until ten PM. I called my wife, who had been taking care of our kids all weekend, and she was upset, calling me a liar and telling me to stay in SD. It turned my weekend getaway into a nightmare! I blame the Kayak website and will not book flights using your app in the future.

comfortable but the food is horrible. I have flown Hawaiian several times now and no matter what they say the food is its the same squashed bread with melted goop inside. Tastes fake and isnt what they represent, its quite nasty. What happend to real food? And there is NO entertainment!! so not sure why they are asking for a review on that.

Good and friendly staff. Nicely enjoyed the complimentary drink and snack.

I was very, very cold and a stranger loaned me her sweater next to me. I didn’t wanna buy a blanket just for a four hour trip when I did not need the pillow or the earphones. I don’t mind purchasing a blanket, but I only needed that not all of it accessories. Cold air pretty much blew the entire trip. Two people in front of me both bought the blanket packages. Maybe that’s the idea. The crew was exceptionally nice and passed through multiple times.. the restrooms were very clean and usually accessible.

3 hour wait on customer service after flight was cancelled. Was bumped to a flight where I wouldnt have gotten to my destination for another 2 days. Had to fully refund flight and book a new one the following morning. Paid twice the amount for the flight than I had originally booked. Very disappointed I was not offered any sort of discount or points for all of the frustration, in fact the airline profited twice as much off of me by cancelling my flight and and changing my entire trip.

I understand that both Hawaiian and Alaskan are in the process of merging but I could not get real-time flight info or access my boarding pass on either app

Had a hard time checking into my flight on my phone because they gave me the wrong confirmation number. Otherwise everything else went well.

All was good and they were able to seat my travel companion next to me. Thank you.

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Everything you need to know for your flight from San Francisco to Boise

Information on your arrival and departure airports