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

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

How long does it take to fly to Great Falls?

Flight times from California to Great Falls vary, but if you’re flying out of Santa Ana and flying into Great Falls (one of the most popular routes), then the duration is 4h 23m on average. Another popular route from California to Great Falls is flying from San Diego to Great Falls, which will take roughly 4h 28m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Great Falls?

Delta, Alaska Airlines and United Airlines are the top three most popular airlines that fly to Great Falls from California according to our data. Delta is the first choice among our users, with 85% of people opting to fly with this airline when traveling to Great Falls. Keep in mind that there are 3 different airlines that fly to Great Falls on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from California to Great Falls Airport were last updated today.

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

As of August 2026, there are 3 operators available to choose from for flights from California to Great Falls Airport.

How old do you have to be to fly from California 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 California 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.

$164 Cheap Flights from California to Great Falls in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from California to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:15 am - 4:19 pmSAN San Diego-GTF Great Falls

6h 04m1 stop Seattle/Tacoma Intl

4:59 pm - 8:22 pmGTF Great Falls-SAN San Diego

28h 23m1 stop Seattle/Tacoma Intl

$312Alaska Airlines

Sat, Nov 14 - Tue, Nov 17

8:33 am - 4:19 pmSFO San Francisco-GTF Great Falls

6h 46m1 stop Seattle/Tacoma Intl

4:59 pm - 9:43 pmGTF Great Falls-SFO San Francisco

5h 44m1 stop Seattle/Tacoma Intl

$312Alaska Airlines

Wed, Nov 11 - Sat, Nov 14

5:45 am - 12:35 pmSFO San Francisco-GTF Great Falls

5h 50m1 stop Salt Lake City

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

6h 29m1 stop Salt Lake City

$328Delta

Sat, Oct 3 - Fri, Oct 9

5:50 am - 12:38 pmSFO San Francisco-GTF Great Falls

5h 48m1 stop Salt Lake City

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

4h 23m1 stop Salt Lake City

$328Delta

Tue, Oct 6 - Tue, Oct 6

7:01 am - 3:28 pmRNO Reno-GTF Great Falls

7h 27m1 stop Seattle/Tacoma Intl

4:08 pm - 8:35 pmGTF Great Falls-RNO Reno

5h 27m1 stop Seattle/Tacoma Intl

$328Alaska Airlines

Sat, Jan 9 - Wed, Jan 13

7:46 pm - 4:19 pmOAK Oakland-GTF Great Falls

19h 33m1 stop Seattle/Tacoma Intl

4:59 pm - 6:50 pmGTF Great Falls-OAK Oakland

26h 51m1 stop Seattle/Tacoma Intl

$332Alaska Airlines

Wed, Nov 4 - Fri, Nov 13

5:45 am - 12:35 pmSFO San Francisco-GTF Great Falls

5h 50m1 stop Salt Lake City

5:40 am - 1:13 pmGTF Great Falls-SFO San Francisco

8h 33m2 stops Salt Lake City Seattle/Tacoma Intl

$334Delta

Fri, Oct 2 - Sun, Oct 4

3:05 pm - 9:22 pmLAS Las Vegas Harry Reid Intl-GTF Great Falls

5h 17m1 stop Denver Intl

2:45 pm - 6:38 pmGTF Great Falls-LAS Las Vegas Harry Reid Intl

4h 53m1 stop Denver Intl

$372United Airlines

Fri, Oct 23 - Sun, Oct 25

1:44 pm - 9:38 pmLAS Las Vegas Harry Reid Intl-GTF Great Falls

6h 54m1 stop Denver Intl

6:30 am - 10:41 amGTF Great Falls-LAS Las Vegas Harry Reid Intl

5h 11m1 stop Denver Intl

$372United Airlines

Thu, Nov 5 - Sun, Nov 8

1:42 pm - 9:38 pmRNO Reno-GTF Great Falls

6h 56m1 stop Denver Intl

6:30 am - 12:40 pmGTF Great Falls-RNO Reno

7h 10m1 stop Denver Intl

$390United Airlines

Tue, Nov 3 - Sat, Nov 7

Cheap last minute flights

Enter your travel dates to find the best prices.

12:15 pm - 5:38 pmRNO Reno-GTF Great Falls

4h 23m1 stop Salt Lake City

1:08 pm - 4:57 pmGTF Great Falls-RNO Reno

4h 49m1 stop Salt Lake City

$458Delta

Thu, Sep 3 - Sat, Sep 5

12:15 pm - 5:38 pmRNO Reno-GTF Great Falls

4h 23m1 stop Salt Lake City

1:08 pm - 10:47 pmGTF Great Falls-RNO Reno

10h 39m2 stops Salt Lake City Los Angeles

$464Delta

Thu, Sep 3 - Sat, Sep 5

7:05 am - 5:38 pmRNO Reno-GTF Great Falls

9h 33m2 stops Los Angeles Salt Lake City

1:08 pm - 10:47 pmGTF Great Falls-RNO Reno

10h 39m2 stops Salt Lake City Los Angeles

$469Delta

Thu, Sep 3 - Sat, Sep 5

7:00 am - 4:38 pmSFO San Francisco-GTF Great Falls

8h 38m1 stop Seattle/Tacoma Intl

5:18 pm - 9:30 pmGTF Great Falls-SFO San Francisco

5h 12m1 stop Seattle/Tacoma Intl

$643Alaska Airlines

Wed, Sep 2 - Fri, Sep 4

6:00 am - 12:28 pmRNO Reno-GTF Great Falls

5h 28m1 stop Salt Lake City

6:18 pm - 11:52 pmGTF Great Falls-RNO Reno

6h 34m1 stop Salt Lake City

$795Delta

Fri, Sep 4 - Mon, Sep 7

7:52 pm - 4:38 pmSMF Sacramento Intl-GTF Great Falls

19h 46m1 stop Seattle/Tacoma Intl

5:15 pm - 9:44 pmGTF Great Falls-SMF Sacramento Intl

5h 29m1 stop Seattle/Tacoma Intl

$815Alaska Airlines

Mon, Aug 31 - Sat, Oct 3

5:00 am - 1:29 pmSFO San Francisco-GTF Great Falls

7h 29m1 stop Denver Intl

6:15 am - 11:23 amGTF Great Falls-SFO San Francisco

6h 08m1 stop Denver Intl

$840United Airlines

Thu, Sep 3 - Mon, Sep 7

6:51 pm - 9:12 pmRNO Reno-GTF Great Falls

25h 21m2 stops San Francisco Denver Intl

6:15 am - 12:40 pmGTF Great Falls-RNO Reno

7h 25m1 stop Denver Intl

$896United Airlines

Fri, Sep 4 - Mon, Sep 7

4:50 pm - 4:45 pmLAX Los Angeles-GTF Great Falls

22h 55m1 stop Seattle/Tacoma Intl

5:25 pm - 9:59 pmGTF Great Falls-LAX Los Angeles

5h 34m1 stop Seattle/Tacoma Intl

$943Alaska Airlines

Fri, Sep 4 - Sun, Sep 6

10:41 am - 9:12 pmSFO San Francisco-GTF Great Falls

9h 31m2 stops Las Vegas Harry Reid Intl Denver Intl

2:25 pm - 9:14 pmGTF Great Falls-SFO San Francisco

7h 49m1 stop Denver Intl

$950United Airlines

Wed, Sep 2 - Fri, Sep 4

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Delta flights from California to Great Falls

Our best Delta deals on California to Great Falls flight tickets

Delta

Oct 3

SFO5:45 amSan Francisco

5h 50m

1 stop

GTF12:35 pmGreat Falls

Oct 9

GTF6:27 pmGreat Falls

6h 29m

1 stop

SFO11:56 pmSan Francisco

$328

Delta

Oct 2

SFO5:45 amSan Francisco

5h 50m

1 stop

GTF12:35 pmGreat Falls

Oct 4

GTF5:40 amGreat Falls

8h 33m

2 stops

SFO1:13 pmSan Francisco

$334

Delta

Oct 2

SFO7:20 amSan Francisco

9h 21m

2 stops

GTF5:41 pmGreat Falls

Oct 4

GTF5:40 amGreat Falls

8h 33m

2 stops

SFO1:13 pmSan Francisco

$339

United Airlines flights from California to Great Falls

Our best United Airlines deals on California to Great Falls flight tickets

United Airlines

Nov 3

RNO1:42 pmReno

6h 56m

1 stop

GTF9:38 pmGreat Falls

Nov 7

GTF6:30 amGreat Falls

7h 10m

1 stop

RNO12:40 pmReno

$390

United Airlines

Nov 3

RNO11:39 amReno

8h 59m

2 stops

GTF9:38 pmGreat Falls

Nov 7

GTF6:30 amGreat Falls

7h 10m

1 stop

RNO12:40 pmReno

$396

United Airlines

Sep 12

LAS3:06 pmLas Vegas Harry Reid Intl

5h 06m

1 stop

GTF9:12 pmGreat Falls

Sep 16

GTF2:25 pmGreat Falls

7h 26m

1 stop

LAS8:51 pmLas Vegas Harry Reid Intl

$415

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Sat 11/14

9:15 am-4:19 pm

1 stop6h 04m

Great Falls

Tue 11/17

4:59 pm-8:22 pm

1 stop28h 23m

$312

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Wed 11/11

8:33 am-4:19 pm

1 stop6h 46m

Great Falls

Sat 11/14

4:59 pm-9:43 pm

1 stop5h 44m

$312

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Sat 10/3

5:45 am-12:35 pm

1 stop5h 50m

Great Falls

Fri 10/9

6:27 pm-11:56 pm

1 stop6h 29m

$328

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Tue 10/6

5:50 am-12:38 pm

1 stop5h 48m

Great Falls

Tue 10/6

6:27 pm-9:50 pm

1 stop4h 23m

$328

RenoGreat Falls

RNO Reno - GTF Great Falls

RNOGTF

Reno

Sat 1/9

7:01 am-3:28 pm

1 stop7h 27m

Great Falls

Wed 1/13

4:08 pm-8:35 pm

1 stop5h 27m

$328

OaklandGreat Falls

OAK Oakland - GTF Great Falls

OAKGTF

Oakland

Wed 11/4

7:46 pm-4:19 pm

1 stop19h 33m

Great Falls

Fri 11/13

4:59 pm-6:50 pm

1 stop26h 51m

$332

San FranciscoGreat Falls

SFO San Francisco - GTF Great Falls

SFOGTF

San Francisco

Fri 10/2

5:45 am-12:35 pm

1 stop5h 50m

Great Falls

Sun 10/4

5:40 am-1:13 pm

2 stops8h 33m

$334

Quickest round-trip

Las VegasGreat Falls

LAS Las Vegas Harry Reid Intl - GTF Great Falls

LASGTF

Las Vegas Harry Reid Intl

Fri 10/23

3:05 pm-9:22 pm

1 stop5h 17m

Great Falls

Sun 10/25

2:45 pm-6:38 pm

1 stop4h 53m

$372

Las VegasGreat Falls

LAS Las Vegas Harry Reid Intl - GTF Great Falls

LASGTF

Las Vegas Harry Reid Intl

Thu 11/5

1:44 pm-9:38 pm

1 stop6h 54m

Great Falls

Sun 11/8

6:30 am-10:41 am

1 stop5h 11m

$372

RenoGreat Falls

RNO Reno - GTF Great Falls

RNOGTF

Reno

Tue 11/3

1:42 pm-9:38 pm

1 stop6h 56m

Great Falls

Sat 11/7

6:30 am-12:40 pm

1 stop7h 10m

$390

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 California 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

Other information

What is the cheapest month to fly to Great Falls?

The month of October is another great option to travel to Great Falls, with average flight prices from California averaging around $388.

Cheap California to Great Falls flight deals and tips

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

Best Price Found	$164
Fastest flight time	4h 12m
Direct flights	None

The best one-way flight to Great Falls from California in the past 72 hours is $164. The best round-trip flight deal from California to Great Falls found on momondo in the last 72 hours is $312.

The fastest flight from California to Great Falls takes 4h 12m

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

Search flight deals

Frequently asked questions about flying from California to Great Falls

When did momondo last update prices for flights from California to Great Falls Airport?
Prices for flights from California to Great Falls Airport were last updated today.
How many operators does momondo search for flights from California to Great Falls Airport?
As of August 2026, there are 3 operators available to choose from for flights from California to Great Falls Airport.
How old do you have to be to fly from California 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 California 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.

Best airlines flying from California to Great Falls

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $163	Free Cancellation	Rating 7.8 8,541 reviews		Search Delta flights
Alaska Airlines	PriceFrom $259	Free Cancellation	Rating 7.9 12,863 reviews		Search Alaska Airlines flights

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from California to Great Falls for you.

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

Yes. momondo enables you to select and highlight flights to Great Falls from California with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Great Falls from California.

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

If you are simply researching potential flights to Great Falls, momondo offers a useful price alert feature which will track prices for flights to Great Falls from California and alert you when they change.