BIL - SFO

$127 Find Cheap Flights from Billings to San Francisco

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 departing on 9/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

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

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

 
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 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

Wed, Sep 17 - Tue, Sep 23
Hawaiian Airlines Logo
3:43 pm - 7:45 pmBIL-SFO
5h 02m1 stop
Hawaiian Airlines Logo
8:00 am - 1:24 pmSFO-BIL
4h 24m1 stop
$242Hawaiian Airlines
Find Deal
Wed, Sep 24 - Mon, Sep 29
Hawaiian Airlines Logo
3:43 pm - 7:45 pmBIL-SFO
5h 02m1 stop
Hawaiian Airlines Logo
4:52 pm - 12:11 amSFO-BIL
6h 19m1 stop
$248Hawaiian Airlines
Find Deal
Sat, Sep 20 - Tue, Sep 23
Delta Logo
6:19 pm - 11:12 pmBIL-SFO
5h 53m1 stop
Delta Logo
4:55 pm - 10:35 pmSFO-BIL
4h 40m1 stop
$255Delta
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Sat, Sep 20 - Tue, Sep 23
Delta Logo
6:19 pm - 11:12 pmBIL-SFO
5h 53m1 stop
Delta Logo
12:40 pm - 10:35 pmSFO-BIL
8h 55m2 stops
$260Delta
Find Deal
Tue, Sep 2 - Tue, Sep 9
Alaska Airlines Logo
7:18 pm - 10:32 amBIL-SFO
16h 14m1 stop
Alaska Airlines Logo
11:44 am - 12:11 amSFO-BIL
11h 27m2 stops
$274Alaska Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
Alaska Airlines Logo
3:43 pm - 11:44 pmBIL-SFO
9h 01m1 stop
Alaska Airlines Logo
9:19 pm - 1:24 pmSFO-BIL
15h 05m2 stops
$284Alaska Airlines
Find Deal
Fri, Dec 19 - Tue, Dec 30
United Airlines Logo
5:51 pm - 11:05 pmBIL-SFO
6h 14m1 stop
United Airlines Logo
5:00 am - 1:13 pmSFO-BIL
7h 13m1 stop
$319United Airlines
Find Deal
Thu, Aug 28 - Tue, Sep 2
United Airlines Logo
2:35 pm - 9:03 pmBIL-SFO
7h 28m1 stop
United Airlines Logo
10:49 pm - 8:34 pmSFO-BIL
20h 45m2 stops
$359United Airlines
Find Deal
Tue, Aug 26 - Mon, Sep 1
American Airlines Logo
5:49 am - 5:52 pmBIL-SFO
13h 03m1 stop
American Airlines Logo
12:45 am - 1:22 pmSFO-BIL
11h 37m1 stop
$601American Airlines
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Thu, Aug 28 - Mon, Sep 1
American Airlines Logo
7:00 am - 6:58 pmBIL-SFO
12h 58m1 stop
American Airlines Logo
12:45 am - 1:22 pmSFO-BIL
11h 37m1 stop
$639American Airlines
Find Deal
Booking Insights

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

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

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

If you are looking for a flight deal from Billings to San Francisco, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from San Francisco, Thursday is the cheapest day to fly and Tuesday is the most expensive.

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

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, 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 is April, where tickets cost $256 (return) on average. On the other hand, the most expensive months are September and June, where the average cost of round-trip tickets is $420 and $392 respectively.

Good to know

Low seasonSeptember
Cheapest flight$127
Best time to beat the crowds but there is an average 28% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Billings to San Francisco

When to book flights from Billings to San Francisco

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

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

    In the last 3 days, the lowest price for a flight from Billings to San Francisco was $127 for a one-way ticket and $242 for a round-trip.

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

    No

  • Which airports will I be using when flying from Billings to San Francisco?

    When flying out of Billings you will be using Billings Logan Intl. You will be landing at San Francisco, also known as San Francisco.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Billings to San Francisco are Delta and Alaska Airlines. With an average price for the route of $304 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $325 and an overall rating of 8.0.

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

    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.

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

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

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

    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 San Francisco from Billings 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

 
See real verified KAYAK customer reviews for airlines flying from Billings to San Francisco. 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? 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 10000 reviews
7.8Comfort
8.5Crew
8.1Boarding
7.1Food
7.1Entertainment
Airline reviews

I loved that the checking in process was seamlessly easy and user friendly. The crew was very nice and professional. Unfortunately, we were seated in the back of the plane across from the bathroom. There wasn’t much room for leg room and comfortability. Alongside, we had to listen to a baby crying up and down the aisle way for the entire plane ride. The turbulence of the plane landing was rocky. Overall, the experience with Alaska was just okay. We made it home alive so that’s always a positive.

4.0 OkayAnonymous, Jul 2025BOS - SFO
Read more Alaska Airlines reviews

I loved that the checking in process was seamlessly easy and user friendly. The crew was very nice and professional. Unfortunately, we were seated in the back of the plane across from the bathroom. There wasn’t much room for leg room and comfortability. Alongside, we had to listen to a baby crying up and down the aisle way for the entire plane ride. The turbulence of the plane landing was rocky. Overall, the experience with Alaska was just okay. We made it home alive so that’s always a positive.

would have been nice for flight to not be delayed by 2 hours so that we had to pay $80 to get home since BART had shut down. i thought a 10pm arrival would leave enough time to account for delays but i was wrong.

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.

As always to close confinement for passengers not in upgrades. I like that you still get carry on and personal bag.

I had a negative experience, the flight delay was very long, I didn't like it

The seats in first class are very dated and quite uncomfortable. I don’t need lie-flat seats for a 6 hour flight, but more recline is really necessary.

One of the stewardess, Tre, went above and beyond to ensure my comfort!

Passengers were not informed timely of delays. The staff appeared like they didn't really care about the passengers.

Flight was delayed for weather, then delayed for mechanical, then just cancelled. Once mechanical problems started I wish you had just started offering rebooking options (at the same airport). I felt my trip was not a priority for you. I called you, I asked for a better option (than changing airports), then I had to literally run around the airport making it happen. Do better.

always delayed. toilet is too stinky worse than smells in sf homeless distriction

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

Boarded plane and then delayed 1.5 hours while on the plane

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

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