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$98+ Cheap flights from Great Falls to San Francisco (GTF - SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SFO
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
1 adult, Economy
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Cheap flight deals from Great Falls to San Francisco

Cheapest flights from Great Falls to San Francisco
Explore the most affordable flight options available from Great Falls to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 10, 2026.

This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:20 pm
GTF
-
SFO
1 stop6h 39m
Delta
Fri 4/176:00 am
SFO
-
GTF
2 stops10h 40m
Delta
Deal found 2/9$249
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:20 pm
GTF
-
SFO
1 stop6h 39m
Delta
Tue 5/55:00 pm
SFO
-
GTF
1 stop4h 29m
Delta
Deal found 2/9$260
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:09 pm
GTF
-
SFO
2 stops11h 11m
Delta
Mon 4/205:40 am
SFO
-
GTF
1 stop5h 47m
Delta
Deal found 2/9$273
This Alaska Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/274:57 pm
GTF
-
SFO
1 stop6h 59m
Alaska Airlines
Tue 3/38:42 am
SFO
-
GTF
1 stop6h 35m
Alaska Airlines
Deal found 2/6$324
This Alaska Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:55 pm
GTF
-
SFO
1 stop5h 32m
Alaska Airlines
Fri 9/259:15 am
SFO
-
GTF
1 stop5h 58m
Alaska Airlines
Deal found 2/7$350

Find flight deals from Great Falls to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Delta)

One-way from

$98
(Trip.com)

Popular in

February

Cheapest in

April

Average price

$685
Provider with most accurate pricing for Great Falls-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Great Falls-San Francisco flights.
Search Deals
From Great Falls to San Francisco
Search Deals
One-way flight from Great Falls to San Francisco
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Great Falls to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 10, 2026.
Use the filters below to find and compare flights from Great Falls to San Francisco that are best for you.

Fly from

Great Falls

Fly to

San Francisco

Route

Depart

Return

Price

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Tue 4/14

6:20 pm-11:59 pm

1 stop6h 39m

San Francisco

Fri 4/17

6:00 am-5:40 pm

2 stops10h 40m

$249

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Thu 4/30

6:20 pm-11:59 pm

1 stop6h 39m

San Francisco

Tue 5/5

5:00 pm-10:29 pm

1 stop4h 29m

$260

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Wed 4/15

1:09 pm-11:37 pm

2 stops11h 28m

San Francisco

Mon 4/20

5:40 am-12:27 pm

1 stop5h 47m

$273

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Tue 4/7

5:06 pm-10:27 pm

1 stop6h 21m

$98

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Tue 3/24

5:06 pm-10:27 pm

1 stop6h 21m

$98

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Tue 4/7

6:22 pm-11:59 pm

1 stop6h 37m

$103

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Mon 4/6

5:06 pm-11:59 pm

1 stop7h 53m

$125

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Wed 4/8

5:30 am-3:03 pm

2 stops10h 33m

$136

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Compare providers for flights from Great Falls to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to San Francisco in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Great Falls-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Great Falls to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Great Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Great Falls to San Francisco?

Currently, September is the cheapest month in which you can book a flight from Great Falls to San Francisco (average of $129). Flying from Great Falls to San Francisco in February is currently the most expensive (average of $358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated February 10, 2026.
See what other customers who have flown with Delta from Great Falls to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,176 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,176 reviews
Delta
7.9
Good
8,176 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Great Falls to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Great Falls to San Francisco?

    A quick flight from Great Falls to San Francisco can take about 6h 39m. Delta provides one of the quickest options available for as low as $249. There are 880 mi between Great Falls and San Francisco.

  • What is the cheapest airline to fly from Great Falls to San Francisco round-trip?

    Our cheapest airline available from Great Falls to San Francisco is Delta. Our recent data shows that you can find tickets from as low as $132 on this airline. Delta is 64% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Great Falls to San Francisco that include hotel bookings?

    Yes. In addition to deals on Great Falls to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Great Falls to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to San Francisco.

  • Can I find deals for business class flights from Great Falls to San Francisco?

    Yes. Cheapflights offers flight deals from Great Falls to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, September is the cheapest month in which you can book a flight from Great Falls to San Francisco (average of $129). Flying from Great Falls to San Francisco in February is currently the most expensive (average of $358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
South San Francisco
Santa Clara
Roseville
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
Redwood City
Rancho Cordova
San Lorenzo
Davis
Hollister
Manteca
Union City

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Top airline flying from Great Falls to San Francisco

Discover the top airline that operate flights from Great Falls to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$132Average$318FlexibilityNo cancel feeOn-timeN/A

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