$175 Find Cheap Flights from Billings to San Francisco Bay Area

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 7/21. 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 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$329
San Jose
San Jose1 stop$333
San Francisco
San Francisco1 stop$329
San Jose
San Jose1 stop$333

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

Tue, Apr 21 - Tue, Apr 28
United Airlines Logo
2:35 pm - 7:50 pm
BIL
-
SFO
6h 15m
1 stop
United Airlines Logo
6:40 am - 1:23 pm
SFO
-
BIL
5h 43m
1 stop
$329United Airlines
Sat, Apr 25 - Tue, Apr 28
Alaska Airlines Logo
7:00 am - 1:50 pm
BIL
-
SJC
7h 50m
1 stop
Alaska Airlines Logo
9:38 am - 1:26 pm
SJC
-
BIL
26h 48m
1 stop
$333Alaska Airlines
Wed, May 27 - Sun, May 31
United Airlines Logo
6:00 pm - 10:56 pm
BIL
-
SFO
5h 56m
1 stop
United Airlines Logo
6:15 am - 1:22 pm
SFO
-
BIL
6h 07m
1 stop
$349United Airlines
Fri, Aug 14 - Sun, Aug 16
Multiple Airlines Logo
10:00 am - 7:56 pm
BIL
-
SFO
10h 56m
1 stop
Multiple Airlines Logo
10:50 pm - 9:10 am
SFO
-
BIL
9h 20m
1 stop
$352Multiple Airlines
Sat, Apr 25 - Tue, Apr 28
Alaska Airlines Logo
2:06 pm - 6:49 pm
BIL
-
SJC
5h 43m
1 stop
Alaska Airlines Logo
2:51 pm - 1:26 pm
SJC
-
BIL
21h 35m
2 stops
$352Alaska Airlines
Sat, Apr 25 - Tue, Apr 28
Alaska Airlines Logo
2:06 pm - 8:48 pm
BIL
-
SJC
7h 42m
1 stop
Alaska Airlines Logo
11:54 am - 1:26 pm
SJC
-
BIL
24h 32m
1 stop
$353Alaska Airlines
Sat, Apr 25 - Tue, Apr 28
Alaska Airlines Logo
7:00 am - 1:50 pm
BIL
-
SJC
7h 50m
1 stop
Alaska Airlines Logo
9:38 am - 1:26 pm
SJC
-
BIL
26h 48m
1 stop
$358Alaska Airlines
Tue, Apr 14 - Fri, Apr 17
United Airlines Logo
5:51 pm - 10:55 pm
BIL
-
SFO
6h 04m
1 stop
United Airlines Logo
5:00 am - 1:23 pm
SFO
-
BIL
7h 23m
1 stop
$359United Airlines
Fri, Apr 24 - Tue, Apr 28
Delta Logo
6:18 pm - 11:59 pm
BIL
-
SFO
6h 41m
1 stop
Delta Logo
5:00 pm - 10:54 pm
SFO
-
BIL
4h 54m
1 stop
$364Delta
Fri, Jun 5 - Tue, Jun 9
Delta Logo
6:19 pm - 11:57 pm
BIL
-
SFO
6h 38m
1 stop
Delta Logo
6:00 am - 11:07 am
SFO
-
BIL
4h 07m
1 stop
$369Delta
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 $290, 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 September, when tickets cost $254 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $457 and $353 respectively.

Good to know

Low seasonSeptember
Cheapest flight$175
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 22% 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 airlines flying 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 12121 reviews
7.8Comfort
7.0Food
8.1Boarding
8.5Crew
7.0Entertainment
Airline reviews

Fine for a short flight. All went well. Snacks are lacking and I couldn’t hook up to wifi through the app, but it was fine.

10.0 ExcellentBill, Mar 2026
PDX - SMF
Read more Alaska Airlines reviews

Fine for a short flight. All went well. Snacks are lacking and I couldn’t hook up to wifi through the app, but it was fine.

Aircraft was freezing, cold air blowing on me the entire time and the individual fans were turned off.

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

i canceled my flight from SEA to SFO, SNA to SEA and received full refund from Alaska Airlines. i am pleased with the customer service.

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.

Departing flight for our weekend trip was cancelled due to weather which meant our return flight was useless. The whole thing was difficult to get support through but Alaska did recover and was able to reimburse us for the flights yesterday. For some reason, Kayak was not kept in the loop, adding to the confusion.

i canceled my return flight package with Alaska Airlines. Customer Service was excellent and assisted me to cancelled both of our reservations and returned the payment in full. that is excellent service and understanding and empathy of the customers' needs. i like Alaska Airlines and recommend AS to everyone.

You sent me an email saying boarding was at 9:29 and AA sent one that was 8:29 on Sunday morning. I had to call AA to get that it was indeed 8:29.

The airport crew and on board experience was fine. The problem with Alaska air is that there is zero customer service over the phone when you’re trying to buy your ticket or change anything.

The front desk attendant was rude to everyone in an absolutely careless way.

The cabin temperature was nice and cool. The wifi was not working.

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

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

Information on your arrival and departure airports