SFO - BIL

$116 Find Cheap Flights from San Francisco to Billings - Compare and Save

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 Billings departing on 8/8. 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 Billings

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Billings, 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 Billings, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$259
Typical prices: $310-$264
Multiple Airlines
Wed 9/9Wed 9/16
SFO - BIL • 2 stops
Cheapest one-way
$116
Multiple Airlines
Sat 8/8
SFO - BIL • 1 stop
Top airlines
Cheapest • from $353 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Billings. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $482 (round-trip)
Shortest trip • 4h 36m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Billings!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Billings (SFO-BIL)

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

Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
5:52 pm - 9:59 am
SFO
-
BIL
39h 07m
2 stops
Multiple Airlines Logo
1:37 pm - 8:42 am
BIL
-
SFO
20h 05m
1 stop
$259Multiple Airlines
Fri, Sep 11 - Mon, Sep 14
Multiple Airlines Logo
6:30 am - 4:21 pm
SFO
-
BIL
8h 51m
1 stop
Multiple Airlines Logo
1:19 pm - 6:22 pm
BIL
-
SFO
30h 03m
2 stops
$265Multiple Airlines
Wed, Sep 9 - Mon, Sep 14
Multiple Airlines Logo
5:52 pm - 9:59 am
SFO
-
BIL
39h 07m
2 stops
Multiple Airlines Logo
5:22 pm - 11:45 pm
BIL
-
SFO
7h 23m
1 stop
$266Multiple Airlines
Fri, Sep 11 - Wed, Sep 16
Multiple Airlines Logo
6:30 am - 4:21 pm
SFO
-
BIL
8h 51m
1 stop
Multiple Airlines Logo
1:37 pm - 8:42 am
BIL
-
SFO
20h 05m
1 stop
$269Multiple Airlines
Fri, Sep 11 - Mon, Sep 14
Multiple Airlines Logo
6:30 am - 4:21 pm
SFO
-
BIL
8h 51m
1 stop
Multiple Airlines Logo
5:22 pm - 11:45 pm
BIL
-
SFO
7h 23m
1 stop
$279Multiple Airlines
Wed, Sep 9 - Mon, Sep 14
Multiple Airlines Logo
5:52 pm - 9:59 am
SFO
-
BIL
39h 07m
2 stops
Multiple Airlines Logo
5:22 pm - 11:45 pm
BIL
-
SFO
7h 23m
1 stop
$281Multiple Airlines
Fri, Sep 11 - Mon, Sep 14
Multiple Airlines Logo
6:30 am - 4:21 pm
SFO
-
BIL
8h 51m
1 stop
Multiple Airlines Logo
5:22 pm - 9:18 pm
BIL
-
SFO
28h 56m
2 stops
$286Multiple Airlines
Sat, Aug 8 - Thu, Aug 13
Multiple Airlines Logo
7:08 pm - 5:03 pm
SFO
-
BIL
20h 55m
1 stop
Multiple Airlines Logo
5:53 pm - 4:06 pm
BIL
-
SFO
23h 13m
1 stop
$287Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
9:27 pm - 9:59 am
SFO
-
BIL
11h 32m
1 stop
Multiple Airlines Logo
1:19 pm - 6:22 pm
BIL
-
SFO
30h 03m
2 stops
$291Multiple Airlines
Fri, Sep 11 - Wed, Sep 16
Multiple Airlines Logo
6:30 am - 4:21 pm
SFO
-
BIL
8h 51m
1 stop
Multiple Airlines Logo
1:37 pm - 8:23 am
BIL
-
SFO
19h 46m
2 stops
$293Multiple Airlines
Booking Insights

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

Get data-powered insights and trends into flights from San Francisco to Billings 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 Billings?

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 Billings departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Billings, 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 Billings is February, where tickets cost $258 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $614 and $516 respectively.

Good to know

Low seasonJanuary
Cheapest flight$116
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from San Francisco to Billings

When to book flights from San Francisco to Billings

Are your dates flexible? Find out the best times to travel from San Francisco to Billings 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 Billings

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

    In the last 5 days, the lowest price for a flight from San Francisco to Billings was $116 for a one-way ticket and $259 for a round-trip.

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

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

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

    We unfortunately don’t have that data for this specific route.

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

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

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Billings are Delta and Alaska Airlines. With an average price for the route of $396 and an overall rating of 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $537 and an overall rating of 7.9.

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

    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 Billings.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings 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 Billings?

    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 Billings with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and BIL 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 Billings?

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

  • Which airlines provide the cheapest flights from San Francisco to Billings?

    In the past 5 days, the cheapest round-trip tickets from San Francisco to Billings were found on Alaska Airlines ($353) and Delta ($357).

Reviews of the top airlines flying from San Francisco to Billings

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Billings. 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 Billings? 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.
7.9
Alaska AirlinesOverall score based on 12517 reviews
7.1Food
7.8Comfort
8.5Crew
7.0Entertainment
8.1Boarding
Airline reviews

Not able to get boarding pass for domestic connection flight when check in at international airport. I was told I need to get connection flight boarding pass after I entered US. It us very inconvenient.

6.0 GoodVI, Jun 2026
SFO - SAN
Read more Alaska Airlines reviews

Not able to get boarding pass for domestic connection flight when check in at international airport. I was told I need to get connection flight boarding pass after I entered US. It us very inconvenient.

They called me 2 hours before my original flight from SFO was to depart to let me know it was delayed and that I would miss my connection. They then rebooked on a different flight leaving a half hour earlier to a different connecting airport, so that I would not miss my connection. It all worked out and I arrived at my destination without a problem and 15 minutes earlier than the original flight would have. Nice!

The flight would have been very good , if not dor the constantly screaming baby in the row behind me. Is there a way to isolate people traveling with infants? This is not the first time this has happened to me.

They treat me well because of my one world status. Crew is attentive and professional. One of the best airlines out there.

Crew were bad Didn’t help with luggage When asked for a glass of wine, I was told that they will serve later , which they didn’t to Me and didn’t serve anyone else in First class . Didn’t offer any snacks , Chips or Nuts to anyone . Flight was not crowded either. Worst Service/ or No Service !

Alaska drastically changed our flight from a direct flight to a flight with connection and a long layover. So we canceled the Alaska flight and we learned a valuable lesson that we will never book through kayak again because the third party travel agent tried to withhold our money.

The flight 2161 was cancelled after repeated delays; for some reason the crew and not the tower located in Billings, Montana made the call. A cancelled flight is not a big deal, it happens. It was very disappointing that upon cancelling the flight it was a free for all to get to the counter for rebooking. Priority seating and first class ticket holders should have been giving priority to get on the next available flight. Most would agree that the process of moving states away, w/a cat, is stressful. A cancelled flight, 90 minutes to rebook, no place to stay, medication that was to be refrigerated and trying to find a local pet friendly hotel significantly added to the stress. Had I been able to rebook (per priority boarding SOP) I could have called the place I had just checked out of as my room most likely was just as I'd left it, including with pet supplies (which also had to be repurchased). While waiting to rebook, many of us called Alaska Airlines 800 number hoping to get a new flight; the waiting time -- this is not a joke -- was eight (8) hours, which dropped to "just" two (2) hours about 45-minutes later. Due to the cancellation I had to spend $268.75 and I still have not been refunded for the change in ticket (first class to regular). Each time I've call, five times now, the wait time was absurd, or a message of call back is given. Hopefully visiting the airport and talking with an agent face to face will be the final chapter to this experience. Alaska has been my go to air travel for years, hopefully this trip was just a hiccup. A system that forces customer's to spend hours of their time (money) to get a just due refund is not a working system. I suggest Alaska Airlines hire more representatives to handle calls; time is more valuable than money, spending 90 minutes to rebook a flight, without the difference being automatic is absurd. There are things called computers, they do amazing things. Once the flight was cancelled, only three agents were working to rebook the PAX, This too was unacceptable. First class ticket holders pay for first-class service, this should include rebooking on flights that are cancelled. I recall a time when flights were cancelled the airline would offer a hotel should the next flight not be until the following day? I had no idea that was no longer SOP; many could return home, several of us could not. The agents were pleasant once the PAX had their turn to rebook, this was true down in baggage area as well. The flight out the next day was also what I'd come to find of Alaska Airlines.

Four hour delay. Missed our event. And they offered me $75. Absolutely shameful.

I have been flying commercial for decades. I was in one of the ladder boarding groups, had my bag tagged because they thought there was not going to be enough space for it in the overhead bins. I politely asked one of the attendance if I could try to find a space- she said I could and I did. I then took the bag tag off and gave it to one of the other attendants as I was told to do by the first one. He, in a curt, anal, and disrespectful manner, told me that I needed to take my bag down from the overhead bin and check it. This was a situation I’ve never encountered before. The attendant’s attitude was confrontational and belittling in front of other onlooking passengers as if daring me to challenge him. I am a physician who takes care of patients day in and day out. Not wanting to make a scene, I calmly told him, “do what you need to do.” he took my bag down from the overhead bin, put the back tag back on it, and checked it only to make room for another bag that was also supposed to be technically checked by a following passenger. The same male attendant later came up to me and said “you shouldn’t have showed me the bag tag,” as if conveying that he was just following protocol was a justification for treating me like a kid out of line. I cared about this because it took 15 minutes from my life to then retrieve the bag at baggage claim and it also felt like really poor customer service. I understand the need for protocols. This is also a service industry, and we the passengers are the clients. We should be made to feel welcome and respected and our life in transit made as easy as it can be within reason. This attendant clearly needs to be reminded of that. Of note, an older female fellow passenger sitting next to me agreed with this assessment.

Nice crew, healthy snacks and drinks available. Flight to Seattle was short and comfortable.

Flight delayed four separate times. I’m now one hour hours late to landing.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

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

Information on your arrival and departure airports