What is the cheapest airline that flies from San Francisco to Great Falls?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco to Great Falls

When did momondo last update prices for flights from San Francisco Airport to Great Falls Airport?

Prices for flights from San Francisco Airport to Great Falls Airport refresh daily.

How many operators does momondo search for flights from San Francisco Airport to Great Falls Airport?

As of October 2026, there are 2 operators available to choose from for flights from San Francisco Airport to Great Falls Airport.

How old do you have to be to fly from San Francisco Airport to Great Falls Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$184 Cheap Flights from San Francisco to Great Falls in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:08 am - 4:30 pmSFO San Francisco-GTF Great Falls

9h 22m1 stop Seattle/Tacoma Intl

5:10 pm - 9:43 pmGTF Great Falls-SFO San Francisco

5h 33m1 stop Seattle/Tacoma Intl

$368Alaska Airlines

Fri, Nov 6 - Fri, Nov 13

9:48 am - 5:47 pmSFO San Francisco-GTF Great Falls

6h 59m1 stop Salt Lake City

6:19 pm - 11:59 pmGTF Great Falls-SFO San Francisco

6h 40m1 stop Salt Lake City

$368Delta

Sat, Nov 7 - Fri, Nov 13

5:13 pm - 10:29 pmSFO San Francisco-GTF Great Falls

4h 16m1 stop Salt Lake City

6:27 pm - 9:50 pmGTF Great Falls-SFO San Francisco

4h 23m1 stop Salt Lake City

$368Delta

Wed, Oct 21 - Tue, Oct 27

5:13 pm - 10:29 pmSFO San Francisco-GTF Great Falls

4h 16m1 stop Salt Lake City

6:27 pm - 11:56 pmGTF Great Falls-SFO San Francisco

6h 29m1 stop Salt Lake City

$368Delta

Wed, Oct 21 - Wed, Oct 28

10:39 am - 4:30 pmSFO San Francisco-GTF Great Falls

4h 51m1 stop Seattle/Tacoma Intl

5:10 pm - 2:10 pmGTF Great Falls-SFO San Francisco

22h 00m1 stop Seattle/Tacoma Intl

$415Alaska Airlines

Sat, Nov 7 - Fri, Nov 13

10:39 am - 4:30 pmSFO San Francisco-GTF Great Falls

4h 51m1 stop Seattle/Tacoma Intl

5:10 pm - 9:47 pmGTF Great Falls-SFO San Francisco

5h 37m1 stop Seattle/Tacoma Intl

$438Alaska Airlines

Wed, Nov 11 - Sat, Nov 14

10:39 am - 4:30 pmSFO San Francisco-GTF Great Falls

4h 51m1 stop Seattle/Tacoma Intl

5:10 pm - 12:37 pmGTF Great Falls-SFO San Francisco

20h 27m2 stops Seattle/Tacoma Intl San Diego

$464Alaska Airlines

Sat, Nov 7 - Fri, Nov 13

2:24 pm - 9:38 pmSFO San Francisco-GTF Great Falls

6h 14m1 stop Denver Intl

6:30 am - 11:42 amGTF Great Falls-SFO San Francisco

6h 12m1 stop Denver Intl

$469United Airlines

Sun, Nov 1 - Sun, Nov 8

6:50 pm - 1:49 pmSFO San Francisco-GTF Great Falls

17h 59m2 stops Ontario Denver Intl

2:45 pm - 10:55 amGTF Great Falls-SFO San Francisco

21h 10m2 stops Denver Intl Ontario

$625United Airlines

Sat, Nov 7 - Fri, Nov 13

6:15 am - 1:41 pmSFO San Francisco-GTF Great Falls

6h 26m1 stop Denver Intl

2:45 pm - 3:05 pmGTF Great Falls-SFO San Francisco

25h 20m2 stops Denver Intl Ontario

$688United Airlines

Sun, Oct 18 - Mon, Oct 26

Cheap last minute flights

Enter your travel dates to find the best prices.

9:46 am - 5:47 pmSFO San Francisco-GTF Great Falls

7h 01m1 stop Salt Lake City

5:40 am - 8:51 amGTF Great Falls-SFO San Francisco

4h 11m1 stop Salt Lake City

$428Delta

Wed, Oct 7 - Tue, Oct 13

5:13 pm - 10:29 pmSFO San Francisco-GTF Great Falls

4h 16m1 stop Salt Lake City

6:27 pm - 11:56 pmGTF Great Falls-SFO San Francisco

6h 29m1 stop Salt Lake City

$428Delta

Wed, Oct 7 - Tue, Oct 13

12:05 pm - 10:29 pmSFO San Francisco-GTF Great Falls

9h 24m2 stops Los Angeles Salt Lake City

6:27 pm - 9:50 pmGTF Great Falls-SFO San Francisco

4h 23m1 stop Salt Lake City

$434Delta

Wed, Oct 7 - Tue, Oct 13

9:46 am - 5:47 pmSFO San Francisco-GTF Great Falls

7h 01m1 stop Salt Lake City

5:40 am - 8:51 amGTF Great Falls-SFO San Francisco

4h 11m1 stop Salt Lake City

$458Delta

Wed, Oct 7 - Tue, Oct 13

11:00 am - 4:35 pmSFO San Francisco-GTF Great Falls

4h 35m1 stop Seattle/Tacoma Intl

5:15 pm - 9:49 pmGTF Great Falls-SFO San Francisco

5h 34m1 stop Seattle/Tacoma Intl

$548Alaska Airlines

Tue, Oct 6 - Tue, Oct 13

9:43 am - 4:35 pmSFO San Francisco-GTF Great Falls

5h 52m1 stop Seattle/Tacoma Intl

5:15 pm - 1:59 pmGTF Great Falls-SFO San Francisco

21h 44m2 stops Seattle/Tacoma Intl Las Vegas Harry Reid Intl

$657Alaska Airlines

Tue, Oct 6 - Tue, Oct 13

5:00 am - 1:41 pmSFO San Francisco-GTF Great Falls

7h 41m1 stop Denver Intl

6:15 am - 11:22 amGTF Great Falls-SFO San Francisco

6h 07m1 stop Denver Intl

$708United Airlines

Wed, Oct 7 - Tue, Oct 13

5:00 am - 1:41 pmSFO San Francisco-GTF Great Falls

7h 41m1 stop Denver Intl

2:37 pm - 3:21 pmGTF Great Falls-SFO San Francisco

25h 44m2 stops Denver Intl Ontario

$753United Airlines

Wed, Oct 7 - Tue, Oct 13

7:08 am - 4:35 pmSFO San Francisco-GTF Great Falls

8h 27m2 stops Las Vegas Harry Reid Intl Seattle/Tacoma Intl

5:15 pm - 6:10 pmGTF Great Falls-SFO San Francisco

25h 55m2 stops Seattle/Tacoma Intl Las Vegas Harry Reid Intl

$813Alaska Airlines

Tue, Oct 6 - Tue, Oct 13

10:20 am - 9:22 pmSFO San Francisco-GTF Great Falls

10h 02m2 stops San Diego Carlsbad-Palomar Denver Intl

6:15 am - 5:05 pmGTF Great Falls-SFO San Francisco

11h 50m2 stops Denver Intl Las Vegas Harry Reid Intl

$1,018United Airlines

Wed, Oct 7 - Tue, Oct 13

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Delta flights from San Francisco to Great Falls

Our best Delta deals on San Francisco to Great Falls flight tickets

Delta

Oct 21

SFO5:13 pmSan Francisco

4h 16m

1 stop

GTF10:29 pmGreat Falls

Oct 27

GTF6:27 pmGreat Falls

4h 23m

1 stop

SFO9:50 pmSan Francisco

$368

Delta

Oct 21

SFO12:05 pmSan Francisco

9h 24m

2 stops

GTF10:29 pmGreat Falls

Oct 27

GTF6:27 pmGreat Falls

6h 29m

1 stop

SFO11:56 pmSan Francisco

$374

Delta

Oct 21

SFO2:40 pmSan Francisco

6h 49m

2 stops

GTF10:29 pmGreat Falls

Oct 28

GTF5:40 amGreat Falls

9h 05m

2 stops

SFO1:45 pmSan Francisco

$379

Alaska Airlines flights from San Francisco to Great Falls

Our best Alaska Airlines deals on San Francisco to Great Falls flight tickets

Alaska Airlines

Nov 7

SFO10:39 amSan Francisco

4h 51m

1 stop

GTF4:30 pmGreat Falls

Nov 13

GTF5:10 pmGreat Falls

22h 00m

1 stop

SFO2:10 pmSan Francisco

$415

Alaska Airlines

Nov 11

SFO10:39 amSan Francisco

4h 51m

1 stop

GTF4:30 pmGreat Falls

Nov 14

GTF5:10 pmGreat Falls

5h 37m

1 stop

SFO9:47 pmSan Francisco

$438

Alaska Airlines

Nov 7

SFO10:39 amSan Francisco

4h 51m

1 stop

GTF4:30 pmGreat Falls

Nov 13

GTF5:10 pmGreat Falls

20h 27m

2 stops

SFO12:37 pmSan Francisco

$464

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Fri 11/6

6:08 am-4:30 pm

1 stop9h 22m

Great Falls

Fri 11/13

5:10 pm-9:43 pm

1 stop5h 33m

$368

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Sat 11/7

9:48 am-5:47 pm

1 stop6h 59m

Great Falls

Fri 11/13

6:19 pm-11:59 pm

1 stop6h 40m

$368

Quickest round-trip

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Wed 10/21

5:13 pm-10:29 pm

1 stop4h 16m

Great Falls

Tue 10/27

6:27 pm-9:50 pm

1 stop4h 23m

$368

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Wed 10/21

5:13 pm-10:29 pm

1 stop4h 16m

Great Falls

Wed 10/28

6:27 pm-11:56 pm

1 stop6h 29m

$368

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Sat 11/7

10:39 am-4:30 pm

1 stop4h 51m

Great Falls

Fri 11/13

5:10 pm-2:10 pm

1 stop22h 00m

$415

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Wed 11/11

10:39 am-4:30 pm

1 stop4h 51m

Great Falls

Sat 11/14

5:10 pm-9:47 pm

1 stop5h 37m

$438

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Sat 11/7

10:39 am-4:30 pm

1 stop4h 51m

Great Falls

Fri 11/13

5:10 pm-12:37 pm

2 stops20h 27m

$464

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Sun 11/1

2:24 pm-9:38 pm

1 stop6h 14m

Great Falls

Sun 11/8

6:30 am-11:42 am

1 stop6h 12m

$469

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Sat 11/7

6:50 pm-1:49 pm

2 stops17h 59m

Great Falls

Fri 11/13

2:45 pm-10:55 am

2 stops21h 10m

$625

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Sun 10/18

6:15 am-1:41 pm

1 stop6h 26m

Great Falls

Mon 10/26

2:45 pm-3:05 pm

2 stops25h 20m

$688

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Francisco to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Great Falls?

The month of January is another great option to travel to Great Falls, with average flight prices from San Francisco averaging around $328.

When to book flights from San Francisco to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Great Falls according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Francisco to Great Falls (SFO to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Great Falls

Best Price Found	$184
Fastest flight time	4h 08m
Direct flights	None

The best one-way flight to Great Falls from San Francisco in the past 72 hours is $184. The best round-trip flight deal from San Francisco to Great Falls found on momondo in the last 72 hours is $368.

The fastest flight from San Francisco to Great Falls takes 4h 08m

There are no direct flights from San Francisco to Great Falls. There are no popular flight routes from San Francisco to Great Falls.

Search flight deals

Frequently asked questions about flying from San Francisco to Great Falls

How far is San Francisco to Great Falls by plane?
The straight-line distance from San Francisco to Great Falls is 874.7 mi. In terms of flight time, this usually takes a little over 4h 08m.
When did momondo last update prices for flights from San Francisco Airport to Great Falls Airport?
Prices for flights from San Francisco Airport to Great Falls Airport refresh daily.
How many operators does momondo search for flights from San Francisco Airport to Great Falls Airport?
As of October 2026, there are 2 operators available to choose from for flights from San Francisco Airport to Great Falls Airport.
How old do you have to be to fly from San Francisco Airport to Great Falls Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Francisco to Great Falls?
Based on momondo bookings for flights between San Francisco and Great Falls, the leading airline is Delta, making up 68% of the total bookings. Other popular airlines include Alaska Airlines with 32%.

Best airlines flying from San Francisco to Great Falls

Compare and see reviews for airlines that fly from San Francisco to Great Falls with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $194	Free Cancellation	Rating 7.8 8,627 reviews		Search Delta flights
Alaska Airlines	PriceFrom $259	Free Cancellation	Rating 7.9 13,006 reviews		Search Alaska Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Great Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Great Falls from San Francisco.

Can I find flights from San Francisco to Great Falls with flexible booking policies on momondo?

Flights from San Francisco to Great Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Francisco to Great Falls?

momondo provides multiple filters to help you find the best flight to Great Falls from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from San Francisco to Great Falls right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Great Falls from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.