$144 Find Cheap Flights from Billings to San Francisco Bay Area - 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 Billings to San Francisco Bay Area departing on 7/30. 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 San Francisco Bay Area

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to San Francisco Bay Area, 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 Billings to San Francisco Bay Area, as well as popular online travel agencies
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Cheap Flights from Billings to San Francisco Bay Area

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
San Francisco
San Francisco1 stop$333
San Jose
San Jose1 stop$353
San Francisco
San Francisco1 stop$333
San Jose
San Jose1 stop$353

Book Cheap Billings to San Francisco Bay Area Plane Tickets

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

Sat, Sep 26 - Wed, Sep 30
Alaska Airlines Logo
3:42 pm - 7:54 pm
BIL
-
SFO
5h 12m
1 stop
Alaska Airlines Logo
7:23 am - 3:02 pm
SFO
-
BIL
6h 39m
1 stop
$333Alaska Airlines
Wed, Oct 21 - Sat, Oct 24
Alaska Airlines Logo
3:44 pm - 9:48 pm
BIL
-
OAK
7h 04m
1 stop
Alaska Airlines Logo
8:00 am - 3:04 pm
OAK
-
BIL
6h 04m
1 stop
$342Alaska Airlines
Tue, Sep 1 - Tue, Sep 29
Alaska Airlines Logo
12:11 pm - 7:59 pm
BIL
-
SFO
8h 48m
1 stop
Alaska Airlines Logo
8:23 am - 3:02 pm
SFO
-
BIL
5h 39m
1 stop
$343Alaska Airlines
Sat, Sep 26 - Wed, Sep 30
Alaska Airlines Logo
6:14 am - 4:37 pm
BIL
-
SFO
11h 23m
2 stops
Alaska Airlines Logo
8:23 am - 3:02 pm
SFO
-
BIL
5h 39m
1 stop
$348Alaska Airlines
Wed, Oct 21 - Sat, Oct 24
Alaska Airlines Logo
6:01 am - 11:26 am
BIL
-
OAK
6h 25m
1 stop
Alaska Airlines Logo
8:00 am - 3:04 pm
OAK
-
BIL
6h 04m
1 stop
$351Alaska Airlines
Tue, Oct 27 - Sat, Oct 31
Alaska Airlines Logo
6:01 am - 8:00 pm
BIL
-
SJC
14h 59m
1 stop
Alaska Airlines Logo
10:35 am - 6:52 pm
SJC
-
BIL
7h 17m
1 stop
$353Alaska Airlines
Fri, Jul 17 - Thu, Jul 23
Multiple Airlines Logo
10:04 am - 8:48 am
BIL
-
SFO
23h 44m
1 stop
Multiple Airlines Logo
3:43 pm - 9:14 am
SFO
-
BIL
16h 31m
1 stop
$355Multiple Airlines
Wed, Oct 21 - Sat, Oct 24
Alaska Airlines Logo
6:01 am - 4:24 pm
BIL
-
OAK
11h 23m
2 stops
Alaska Airlines Logo
8:00 am - 3:04 pm
OAK
-
BIL
6h 04m
1 stop
$357Alaska Airlines
Wed, Sep 30 - Mon, Oct 5
Delta Logo
12:57 pm - 4:20 pm
BIL
-
OAK
4h 23m
1 stop
Delta Logo
5:00 pm - 10:34 pm
OAK
-
BIL
4h 34m
1 stop
$361Delta
Wed, Sep 30 - Mon, Oct 5
Delta Logo
12:57 pm - 10:45 pm
BIL
-
SJC
10h 48m
2 stops
Delta Logo
5:08 pm - 10:34 pm
SJC
-
BIL
4h 26m
1 stop
$412Delta
Booking Insights

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

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

Can I save money by flying with a layover from Billings to San Francisco Bay Area?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $301, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billings to San Francisco Bay Area, 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 Billings to San Francisco Bay Area is August, when tickets cost $137 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $396 and $377 respectively.

Good to know

Low seasonJuly
Cheapest flight$144
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Billings to San Francisco

FAQs - booking San Francisco Bay Area flights

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

    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 Billings to San Francisco Bay Area.

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

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

    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 Billings to San Francisco Bay Area 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 Billings to San Francisco Bay Area?

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

Reviews of the top 3 airlines serving from Billings to San Francisco Bay Area

 
See real verified KAYAK customer reviews for airlines flying from Billings to San Francisco Bay Area. 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 Billings to San Francisco Bay Area? 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 12581 reviews
8.1Boarding
7.0Food
8.5Crew
7.8Comfort
7.0Entertainment
Airline reviews

The flight was on time, seats were comfortable, crew is friendly and professional. Nice flight overall. Thanks!

10.0 ExcellentElena, Jun 2026
DFW - SAN
Read more Alaska Airlines reviews

The flight was on time, seats were comfortable, crew is friendly and professional. Nice flight overall. Thanks!

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

Easy check-in. Good customer service. Had to check carry-on due to lack of overhead space. Wish the airplane was configured with more overhead area so this doesn't usually happen.

I liked that the crew was friendly, we left and arrived at near scheduled times, plenty of on-board crew to handle the cabin service for the flight and I found the price of my airline ticket to be excellent!

Had no way to see what gate came in on or what gate connecting flight would take off.

Planes were on time. Pilot kept everyone updated. Crew was friendly and helpful

I have mobility problems and requested wheelchair assistance in Seattle and Anchorage and none was provided at all. Very disappointed. Only one gate agent in Seattle asked if I needed assistance boarding my flight in Seattle.... and only after three gate changes.... requiring even more extremely painful walking without assistance.

One of the best roundtrip flights I’ve ever been on. We needed assistance for my elderly mother and without fail, each and every Alaska team member was helpful, kind, and patient. Will fly Alaska again and again.

My original flight time was changed 6 times. Several flights were obviously cancelled as we ended up being the last flight of the day. We specifically went with this flight as it met our timeline for what we needed to do once we got to San Francisco. Not leaving Bozeman until 10:30PM sure changed our plans

My travels went as smooth as they probably could have, I expected delays upon delays but to my surprise even with the small delays I had I was still able to make all my flights. Thanks -Josh

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

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

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

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!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Didn’t make the flight. My connecting flight was an hour late and I missed the flight. You rerouted me thru Atlanta and I arrived in Rome over 10 hour after my original Rome arrival time. You also left my luggage in Atlanta and it took you three day to get my bag to meI spent 4 days in the same cloths, I had packed my prescriptions in the lost bag and went 3 days withoutMy heart meds.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

Everything you need to know for your flight to San Francisco Bay Area

Information on your arrival and departure airports