BIL

$136 Find Cheap Flights from San Francisco Bay Area to Billings

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Billings departing on 4/21. 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

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Everything you should know

Cheapest round-trip
$278
Overall average: $374
Delta
Wed 4/8Mon 4/13
SFO - BIL • 1 stop
Cheapest one-way
$109
Typical prices: $152-$237
Delta
Tue 4/21
SFO - BIL • 1 stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from San Francisco Bay Area to Billings

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

Wed, Apr 8 - Mon, Apr 13
Delta Logo
5:01 pm - 10:29 pm
SFO
-
BIL
4h 28m
1 stop
Delta Logo
6:18 pm - 11:59 pm
BIL
-
SFO
6h 41m
1 stop
$278Delta
Tue, Mar 24 - Mon, Mar 30
Alaska Airlines Logo
6:53 pm - 11:54 am
STS
-
BIL
16h 01m
1 stop
Alaska Airlines Logo
2:05 pm - 6:01 pm
BIL
-
STS
4h 56m
1 stop
$291Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
4:59 pm - 11:38 pm
SJC
-
BIL
5h 39m
1 stop
Alaska Airlines Logo
3:32 pm - 7:25 pm
BIL
-
SJC
4h 53m
1 stop
$291Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
2:36 pm - 11:38 pm
SJC
-
BIL
8h 02m
1 stop
Alaska Airlines Logo
3:32 pm - 7:25 pm
BIL
-
SJC
4h 53m
1 stop
$293Alaska Airlines
Fri, Apr 10 - Mon, Apr 13
Delta Logo
9:35 pm - 10:53 am
SFO
-
BIL
12h 18m
2 stops
Delta Logo
6:18 pm - 11:59 pm
BIL
-
SFO
6h 41m
1 stop
$299Delta
Thu, Apr 30 - Thu, May 7
Alaska Airlines Logo
2:09 pm - 10:59 pm
OAK
-
BIL
7h 50m
1 stop
Alaska Airlines Logo
12:49 pm - 7:24 pm
BIL
-
OAK
7h 35m
1 stop
$302Alaska Airlines
Fri, Apr 17 - Mon, Apr 20
Delta Logo
5:40 am - 10:53 am
SFO
-
BIL
4h 13m
1 stop
Delta Logo
6:18 pm - 11:59 pm
BIL
-
SFO
6h 41m
1 stop
$305Delta
Tue, Mar 24 - Mon, Mar 30
Alaska Airlines Logo
7:46 pm - 11:58 pm
STS
-
BIL
27h 12m
2 stops
Alaska Airlines Logo
2:05 pm - 6:01 pm
BIL
-
STS
4h 56m
1 stop
$307Alaska Airlines
Fri, Apr 10 - Mon, Apr 13
Delta Logo
5:40 am - 10:53 am
SFO
-
BIL
4h 13m
1 stop
Delta Logo
6:18 pm - 11:59 pm
BIL
-
SFO
6h 41m
1 stop
$307Delta
Thu, Feb 19 - Tue, Feb 24
American Airlines Logo
4:23 pm - 11:35 pm
STS
-
BIL
6h 12m
1 stop
American Airlines Logo
7:25 am - 12:33 pm
BIL
-
STS
6h 08m
1 stop
$341American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$109
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 8% increase in price.
Flight from San Francisco to Billings

FAQs for booking flights from San Francisco Bay Area to Billings

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

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

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

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

 
Need help choosing which airline to fly with from San Francisco Bay Area 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.
8.0
Alaska AirlinesOverall score based on 11825 reviews
7.8Comfort
8.1Boarding
7.0Entertainment
8.5Crew
7.1Food
Airline reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

2.0 MediocreAnonymous, Jan 2026
STS - SAN
Read more Alaska Airlines reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

I paid for wifi and it never worked... it was miserable. I couldn't access my shared files to work on the plane, it didn't work on my phone. I paid for nothing but frustration and continual refreshing, hoping it would work

The stewardess are very nice and pleasant, Someone onboard had a medical attention, and they attended that person non-stop all throughout the flight, and yet, did not forget to serve and help other passengers.

Worst first/business class I have ever flown after 75 years on planes. Barely acceptable seats, terrible food, uninterested attendants, unavailable WiFi. I’ll never fly this airline again.

The bathroom trash container under the sink fell out and was like that long before my flight. The plane smelled of canned fish and floor was Deteriorating

My TSA pre check was left Off my boarding pass which was a large inconvenience.

Again, very smooth and all of the Alaska folks were great. They continue to meet all my needs.

Overall it was fine, however one of my two checked bags did not arrive and I was told it was left in Palm Springs. I don't understand how one of the two bags made it through fine but the other got lost .

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

It wasn’t great. Your app is not user friendly unless you sign up for those points. It tries to force you and won’t show you flight/trip info until you sign up. You have to somehow get into get your boarding pass because your kiosks don’t offer boarding pass information only bag check. It was not helpful or user friendly. The app is useless unless you sign up for your rewards program. My daughters info was missing even though I checked us in we had to get out of security and go back to a ticket window the woman told us that it sometimes populates incorrectly so it didn’t have her information. It populated incorrect birth date. She said this is common. Luckily we were at Palm Springs and not JFK where leaving the giant security line would have been a much bigger problem. I will avoid your airline in the future if it’s possible. Also no food availability except dry snack boxes.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

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?

Everything you need to know for your flight to Billings

Information on the airport you'll fly into in Billings