SFO - GTF

$305 Find Cheap Flights from San Francisco to Great Falls

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Great Falls departing on 5/18. 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 Great Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Great Falls, 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 Great Falls, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$305
Alaska Airlines
Mon 5/18Wed 5/20
SFO - GTF • 2 stops
Cheapest one-way
$425
United Airlines
Fri 2/20
SFO - GTF • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $305 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Booking Insights
Flight Deals

Cheap Flights from San Francisco to Great Falls (SFO-GTF)

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

Mon, May 18 - Wed, May 20
Alaska Airlines Logo
7:25 pm - 6:12 pm
SFO
-
GTF
21h 47m
2 stops
Alaska Airlines Logo
6:52 pm - 10:48 pm
GTF
-
SFO
4h 56m
1 stop
$305Alaska Airlines
Mon, May 18 - Wed, May 20
Delta Logo
4:59 pm - 10:26 pm
SFO
-
GTF
4h 27m
1 stop
Delta Logo
6:20 pm - 9:30 pm
GTF
-
SFO
4h 10m
1 stop
$329Delta
Mon, May 18 - Wed, May 20
Alaska Airlines Logo
8:45 pm - 6:12 pm
SFO
-
GTF
20h 27m
1 stop
Alaska Airlines Logo
6:52 pm - 10:48 pm
GTF
-
SFO
4h 56m
1 stop
$341Alaska Airlines
Sat, Apr 4 - Wed, Apr 8
Delta Logo
7:20 pm - 12:24 pm
SFO
-
GTF
16h 04m
2 stops
Delta Logo
6:22 pm - 11:59 pm
GTF
-
SFO
6h 37m
1 stop
$349Delta
Mon, May 18 - Wed, May 20
Alaska Airlines Logo
6:11 pm - 6:12 pm
SFO
-
GTF
23h 01m
2 stops
Alaska Airlines Logo
6:52 pm - 5:56 pm
GTF
-
SFO
24h 04m
2 stops
$366Alaska Airlines
Thu, Mar 5 - Sun, Mar 8
Alaska Airlines Logo
8:47 pm - 4:17 pm
SFO
-
GTF
18h 30m
1 stop
Alaska Airlines Logo
4:57 pm - 10:56 pm
GTF
-
SFO
6h 59m
1 stop
$369Alaska Airlines
Sat, Apr 4 - Tue, Apr 7
Delta Logo
7:20 pm - 12:24 pm
SFO
-
GTF
16h 04m
2 stops
Delta Logo
1:05 pm - 11:57 pm
GTF
-
SFO
11h 52m
2 stops
$398Delta
Thu, Mar 5 - Sun, Mar 8
Alaska Airlines Logo
8:42 am - 4:17 pm
SFO
-
GTF
6h 35m
1 stop
Alaska Airlines Logo
4:57 pm - 2:26 pm
GTF
-
SFO
22h 29m
2 stops
$402Alaska Airlines
Sat, Apr 4 - Thu, Apr 9
Delta Logo
7:20 pm - 12:24 pm
SFO
-
GTF
16h 04m
2 stops
Delta Logo
6:22 pm - 11:59 pm
GTF
-
SFO
6h 37m
1 stop
$409Delta
Thu, Mar 5 - Sun, Mar 8
Delta Logo
1:15 pm - 10:29 pm
SFO
-
GTF
8h 14m
2 stops
Delta Logo
6:22 pm - 11:59 pm
GTF
-
SFO
6h 37m
1 stop
$414Delta
Booking Insights

KAYAK's insights & trends for San Francisco to Great Falls flights

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

Which airlines provide the cheapest flights from San Francisco to Great Falls?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from San Francisco to Great Falls were found on Alaska Airlines ($305) and Delta ($329).

Good to know

Low seasonApril
Cheapest flight$305
Best time to beat the crowds with an average 50% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from San Francisco to Great Falls

When to book flights from San Francisco to Great Falls

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

  • What is the cheapest flight from San Francisco to Great Falls?

    In the last 3 days, the lowest price for a flight from San Francisco to Great Falls was $425 for a one-way ticket and $305 for a round-trip.

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

    A passport is not required to fly from San Francisco to Great Falls.

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

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

  • Which airline alliances offer flights from San Francisco to Great Falls?

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

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Great Falls are Alaska Airlines and Delta. With an average price for the route of $393 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $468 and an overall rating of 7.9.

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

    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 Great Falls.

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

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

    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 Great Falls with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and GTF 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 Great Falls?

    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 Great Falls from San Francisco 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 San Francisco to Great Falls

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Great Falls. 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 Great Falls? 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 11878 reviews
7.1Food
8.1Boarding
7.0Entertainment
7.8Comfort
8.5Crew
Airline reviews

Delay for switching planes. Then delay after delay (mechanical) after boarding so that we were almost 3 hrs late, getting in at 230am. Crew was good.

4.0 Okayjeff, Feb 2026
SFO - PDX
Read more Alaska Airlines reviews

Delay for switching planes. Then delay after delay (mechanical) after boarding so that we were almost 3 hrs late, getting in at 230am. Crew was good.

The he whole flight was very smooth on every aspects.

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.

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

The flight was excellent and very friendly and helpful staff. Will travel again and recommend to friends. Thank you

Did not have In flight service on my round trip due to turbulence. I did not partake in In flight entertainment. Flight descending into LAX was very turbulent. It would have been nice if the pilot communicated with us during that rough descent into LAX to ease the minds of some of us more nervous flyers.

They canceled my flight with only a couple hours before checking in at the airport and offered no alternatives to get home.

I had entered my TSA pre number when I bought the ticket but TSA pre was not on my boarding pass. I went to find an agent at check in and there was only one agent one duty for first class and a line of people waiting for check in/baggage with no agent manning that area.

Comfort level was below par. Food selection was non-existent. Paying $35 for 1st bag is never appreciated. I will not fly them again. I am actually trying to change my return flight.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

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

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.

Everything you need to know for your flight from San Francisco to Great Falls

Information on your arrival and departure airports