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

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

What airlines fly to Great Falls?

Delta, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Great Falls from San Diego according to our data. Delta is the first choice among our users, with 84% 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 San Diego Airport to Great Falls Airport?

Prices for flights from San Diego Airport to Great Falls Airport are updated daily.

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

As of October 2025, there are 2 operators available to choose from for flights from San Diego Airport to Great Falls Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego 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.

$215 Cheap Flights from San Diego to Great Falls in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from San Diego to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 3:20 pmSAN-GTF

7h 20m1 stop

4:00 pm - 12:07 amGTF-SAN

9h 07m1 stop

$312Alaska Airlines

Find Deal

Wed, Feb 18 - Sun, Mar 1

5:25 pm - 7:02 pmSAN-GTF

24h 37m1 stop

7:21 pm - 10:07 amGTF-SAN

15h 46m1 stop

$322Alaska Airlines

Find Deal

Thu, Nov 20 - Tue, Jan 6

9:28 am - 6:10 pmSAN-GTF

7h 42m1 stop

7:21 pm - 7:17 amGTF-SAN

36h 56m2 stops

$333Alaska Airlines

Find Deal

Thu, Nov 20 - Tue, Jan 6

7:00 am - 3:20 pmSAN-GTF

7h 20m1 stop

4:00 pm - 9:50 amGTF-SAN

42h 50m2 stops

$340Alaska Airlines

Find Deal

Wed, Feb 18 - Sun, Mar 1

5:45 pm - 3:20 pmSAN-GTF

20h 35m2 stops

4:00 pm - 7:58 amGTF-SAN

16h 58m2 stops

$344Alaska Airlines

Find Deal

Wed, Feb 18 - Sun, Mar 1

8:07 am - 6:10 pmSAN-GTF

9h 03m2 stops

7:21 pm - 7:17 amGTF-SAN

36h 56m2 stops

$356Alaska Airlines

Find Deal

Thu, Nov 20 - Tue, Jan 6

8:29 pm - 6:10 pmSAN-GTF

20h 41m2 stops

6:50 pm - 4:30 pmGTF-SAN

22h 40m2 stops

$519Alaska Airlines

Find Deal

Fri, Nov 14 - Tue, Nov 18

8:29 pm - 6:10 pmSAN-GTF

20h 41m2 stops

6:50 pm - 10:12 amGTF-SAN

16h 22m1 stop

$523Alaska Airlines

Find Deal

Fri, Nov 14 - Tue, Nov 18

5:15 pm - 10:30 pmSAN-GTF

4h 15m1 stop

5:30 am - 12:01 pmGTF-SAN

7h 31m1 stop

$562Delta

Find Deal

Fri, Nov 14 - Tue, Nov 18

Alaska Airlines flights from San Diego to Great Falls

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

Alaska Airlines

Feb 18

SAN7:00 amSan Diego

7h 20m

1 stop

GTF3:20 pmGreat Falls

Mar 1

GTF4:00 pmGreat Falls

9h 07m

1 stop

SAN12:07 amSan Diego

$312

Find similar

Alaska Airlines

Nov 20

SAN5:25 pmSan Diego

24h 37m

1 stop

GTF7:02 pmGreat Falls

Jan 6

GTF7:21 pmGreat Falls

15h 46m

1 stop

SAN10:07 amSan Diego

$322

Find similar

Alaska Airlines

Nov 20

SAN9:28 amSan Diego

7h 42m

1 stop

GTF6:10 pmGreat Falls

Jan 6

GTF7:21 pmGreat Falls

36h 56m

2 stops

SAN7:17 amSan Diego

$333

Find similar

Delta flights from San Diego to Great Falls

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

Delta

Nov 14

SAN5:15 pmSan Diego

4h 15m

1 stop

GTF10:30 pmGreat Falls

Nov 18

GTF5:30 amGreat Falls

7h 31m

1 stop

SAN12:01 pmSan Diego

$562

Find similar

Delta

Nov 4

SAN6:20 amSan Diego

10h 09m

2 stops

GTF5:29 pmGreat Falls

Nov 7

GTF1:08 pmGreat Falls

10h 58m

2 stops

SAN11:06 pmSan Diego

$940

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 2/18

7:00 am-3:20 pm

1 stop7h 20m

Great Falls

Sun 3/1

4:00 pm-12:07 am

1 stop9h 07m

$312

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 11/20

5:25 pm-7:02 pm

1 stop24h 37m

Great Falls

Tue 1/6

7:21 pm-10:07 am

1 stop15h 46m

$322

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 11/20

9:28 am-6:10 pm

1 stop7h 42m

Great Falls

Tue 1/6

7:21 pm-7:17 am

2 stops36h 56m

$333

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 2/18

7:00 am-3:20 pm

1 stop7h 20m

Great Falls

Sun 3/1

4:00 pm-9:50 am

2 stops42h 50m

$340

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 2/18

5:45 pm-3:20 pm

2 stops20h 35m

Great Falls

Sun 3/1

4:00 pm-7:58 am

2 stops16h 58m

$344

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 11/20

8:07 am-6:10 pm

2 stops9h 03m

Great Falls

Tue 1/6

7:21 pm-7:17 am

2 stops36h 56m

$356

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 11/14

8:29 pm-6:10 pm

2 stops20h 41m

Great Falls

Tue 11/18

6:50 pm-4:30 pm

2 stops22h 40m

$519

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 11/14

8:29 pm-6:10 pm

2 stops20h 41m

Great Falls

Tue 11/18

6:50 pm-10:12 am

1 stop16h 22m

$523

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 11/14

5:15 pm-10:30 pm

1 stop4h 15m

Great Falls

Tue 11/18

5:30 am-12:01 pm

1 stop7h 31m

$562

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Mon 4/6

5:25 pm-3:20 pm

1 stop20h 55m

$215

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Diego 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 September is another great option to travel to Great Falls, with average flight prices from San Diego averaging around $313.

What is the cheapest day to depart on your flight to Great Falls?

The cheapest day to depart on your flight to Great Falls is on a Wednesday when prices can be found for as low as $488. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $587.

What is the cheapest time of day to depart on your flight to Great Falls?

According to our data, the cheapest time of day to fly to Great Falls is in the morning. momondo users have found flights departing from San Diego to Great Falls in the morning for as low as $535. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $556 on average. Flights to Great Falls from San Diego in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from San Diego to Great Falls

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

Estimated round-trip price

Cheap San Diego to Great Falls (SAN to GTF) flight deals and tips

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

Direct flights	None

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

Search flight deals

How far is San Diego to Great Falls by plane?
There are 1065.8 mi between San Diego and Great Falls. A reasonable flight in good conditions will take 4h 15m.
When did momondo last update prices for flights from San Diego Airport to Great Falls Airport?
Prices for flights from San Diego Airport to Great Falls Airport are updated daily.
How many operators does momondo search for flights from San Diego Airport to Great Falls Airport?
As of October 2025, there are 2 operators available to choose from for flights from San Diego Airport to Great Falls Airport.
How old do you have to be to fly from San Diego Airport to Great Falls Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego 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 Diego to Great Falls?
momondo data reveals that the most frequently booked airline on the route from San Diego to Great Falls is Delta, representing 72% of all bookings. The subsequent popular airline is United Airlines at 28%.

Best airlines flying from San Diego to Great Falls

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $199	Free Cancellation	Rating 7.4 8,998 reviews		Search United Airlines flights
Delta	PriceFrom $266	Free Cancellation	Rating 7.9 7,998 reviews		Search Delta flights

Shelby

Why use momondo?

Why should I use momondo to find a flight deal from San Diego 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 San Diego to Great Falls for you.

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

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

How can momondo help me find flights from San Diego 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 San Diego.

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

Yes momondo offers price alerts on flights to Great Falls from San Diego. 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.