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 $210 on this airline. Delta is 46% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from Great Falls to San Francisco?

Travelers seeking maximum savings on their Great Falls to San Francisco flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Great Falls to San Francisco?

April can be a great time to fly to San Francisco from Great Falls with a flight ticket averaging about $390. Cheapflights users have found deals in the month of April for as cheap as $215. The most expensive prices can be found in the month of January.

What is the cheapest time of day to fly from GTF to SFO?

It’s optimal to fly from Great Falls to San Francisco at noon. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the morning.

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.

$240+ Flights from Great Falls to San Francisco

Q: How much does it cost to fly round-trip from Great Falls to San Francisco?

Airfare is below average for this route at the moment. Great Falls to San Francisco flights typically cost between $395 and $688 in November. The cheapest round-trip price found within the last 3 days was $240 on Delta (Nov 4-Nov 8).

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Great Falls to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Great Falls to San Francisco

Round-trip from	$240 (Delta)
Popular in	January
Cheapest in	April
Average price	$541

From Great Falls to San Francisco

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($112 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 10% potential price decrease ($39 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find 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 August 14, 2025.

Tue 11/46:09 pmGTF - SFO

1 stop5h 01mDelta

Sat 11/86:00 amSFO - GTF

1 stop5h 28mDelta

Deal found 8/13

$240

Thu 8/286:06 pmGTF - SFO

1 stop5h 45mDelta

Mon 9/15:35 amSFO - GTF

1 stop4h 28mDelta

Deal found 8/13

$504

Sun 8/176:06 pmGTF - SFO

1 stop6h 42mDelta

Tue 8/195:35 amSFO - GTF

1 stop4h 28mDelta

Deal found 8/11

$823

Best flights from Great Falls to San Francisco
Discover carefully curated flight deals from Great Falls to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Tue 11/46:09 pmGTF - SFO

1 stop5h 01mDelta

Sat 11/86:00 amSFO - GTF

1 stop5h 28mDelta

Deal found 8/13

$240

Thu 8/286:06 pmGTF - SFO

1 stop5h 45mDelta

Mon 9/15:35 amSFO - GTF

1 stop4h 28mDelta

Deal found 8/13

$504

Last-minute flights from Great Falls to San Francisco
Discover last-minute flight deals from Great Falls to San Francisco. Data last updated August 14, 2025 and is based on user searches.

Sun 8/176:06 pmGTF - SFO

1 stop6h 42mDelta

Tue 8/195:35 amSFO - GTF

1 stop4h 28mDelta

Deal found 8/11

$823

Thu 8/286:06 pmGTF - SFO

1 stop5h 45mDelta

Mon 9/15:35 amSFO - GTF

1 stop4h 28mDelta

Deal found 8/13

$504

One-way flights from Great Falls to San Francisco
Search for one-way flight options from Great Falls to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Tue 9/26:06 pmGTF - SFO

1 stop5h 45mDelta

Deal found 8/13

$250

Tue 9/22:35 pmGTF - SFO

2 stops19h 21mUnited Airlines

Deal found 8/13

$318

Cheapflights Fare Finder

Use the filters below to find and compare flights from Great Falls to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Tue 11/4

6:09 pm-10:10 pm

1 stop5h 01m

San Francisco

Sat 11/8

6:00 am-12:28 pm

1 stop5h 28m

$240

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Thu 8/28

6:06 pm-10:51 pm

1 stop5h 45m

San Francisco

Mon 9/1

5:35 am-11:03 am

1 stop4h 28m

$504

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Tue 9/2

6:06 pm-10:51 pm

1 stop5h 45m

$250

Great FallsSan Francisco

GTF - SFO

GTFSFO

Great Falls

Tue 9/2

2:35 pm-8:56 am

2 stops19h 21m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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, January is the cheapest month in which you can book a flight from Great Falls to San Francisco (average of $276). Flying from Great Falls to San Francisco in June 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.

How much does it cost to fly round-trip from Great Falls to San Francisco?

Reviews of airlines servicing San Francisco

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

8.0

Very good

7,980 reviews

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

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

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

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 $210 on this airline. Delta is 46% 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, January is the cheapest month in which you can book a flight from Great Falls to San Francisco (average of $276). Flying from Great Falls to San Francisco in June 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

Roseville

Santa Cruz

Livermore

South San Francisco

Mountain View

Turlock

Santa Clara

Hollister

Antioch

Watsonville

Manteca

Sunnyvale

Newark

Milpitas

Campbell

Foster City

San Leandro

Burlingame

Redwood City

Vallejo

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Great Falls to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$210	Average$318	FlexibilityNo cancel fee	On-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$240+ Cheap flights from Great Falls to San Francisco (GTF - SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Great Falls to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Great Falls to San Francisco

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Great Falls to San Francisco

Cheapest flights from Great Falls to San FranciscoExplore 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 August 14, 2025.

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 August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Great Falls to San Francisco that are best for you.

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.

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?

How much does it cost to fly round-trip from Great Falls to San Francisco?

Reviews of airlines servicing San Francisco

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.

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.

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

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

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

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

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

Traveling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Great Falls to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Great Falls to San Francisco

100% Free

Book with Flexibility

Travel Smart

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 August 14, 2025.