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

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 86% 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 September 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.

$271 Cheap Flights from San Diego to Great Falls in 2025/26

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Find the cheapest flights from San Diego to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

10:30 am - 5:35 pmSAN-GTF

6h 05m1 stop

6:15 pm - 11:05 pmGTF-SAN

5h 50m1 stop

$312Hawaiian Airlines

Find Deal

Wed, Oct 22 - Sat, Oct 25

10:30 am - 5:35 pmSAN-GTF

6h 05m1 stop

6:15 pm - 9:58 amGTF-SAN

16h 43m2 stops

$342Alaska Airlines

Find Deal

Wed, Oct 22 - Sat, Oct 25

7:15 am - 5:35 pmSAN-GTF

9h 20m2 stops

6:15 pm - 8:25 amGTF-SAN

15h 10m2 stops

$375Alaska Airlines

Find Deal

Wed, Oct 22 - Sat, Oct 25

6:15 am - 12:25 pmSAN-GTF

5h 10m1 stop

6:11 pm - 10:44 pmGTF-SAN

5h 33m1 stop

$542Delta

Find Deal

Tue, Sep 30 - Sat, Oct 4

6:20 am - 5:27 pmSAN-GTF

10h 07m2 stops

5:40 am - 8:49 amGTF-SAN

4h 09m1 stop

$548Delta

Find Deal

Tue, Sep 30 - Sat, Oct 4

7:29 am - 5:27 pmSAN-GTF

8h 58m2 stops

1:05 pm - 10:24 pmGTF-SAN

10h 19m2 stops

$553Delta

Find Deal

Tue, Sep 30 - Sat, Oct 4

Alaska Airlines flights from San Diego to Great Falls

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

Alaska Airlines

Oct 22

SAN10:30 amSan Diego

6h 05m

1 stop

GTF5:35 pmGreat Falls

Oct 25

GTF6:15 pmGreat Falls

16h 43m

2 stops

SAN9:58 amSan Diego

$342

Find similar

Alaska Airlines

Oct 22

SAN7:15 amSan Diego

9h 20m

2 stops

GTF5:35 pmGreat Falls

Oct 25

GTF6:15 pmGreat Falls

15h 10m

2 stops

SAN8:25 amSan Diego

$375

Find similar

Alaska Airlines

Sep 18

SAN7:15 amSan Diego

7h 34m

1 stop

GTF3:49 pmGreat Falls

Sep 20

GTF4:29 pmGreat Falls

17h 23m

2 stops

SAN8:52 amSan Diego

$992

Find similar

United Airlines flights from San Diego to Great Falls

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

United Airlines

Sep 18

SAN7:00 amSan Diego

5h 37m

1 stop

GTF1:37 pmGreat Falls

Sep 20

GTF2:35 pmGreat Falls

19h 34m

1 stop

SAN9:09 amSan Diego

$923

Find similar

United Airlines

Sep 19

SAN10:38 amSan Diego

25h 59m

3 stops

GTF1:37 pmGreat Falls

Sep 21

GTF2:35 pmGreat Falls

19h 34m

1 stop

SAN9:09 amSan Diego

$945

Find similar

United Airlines

Sep 19

SAN10:38 amSan Diego

25h 59m

3 stops

GTF1:37 pmGreat Falls

Sep 21

GTF2:35 pmGreat Falls

20h 38m

2 stops

SAN10:13 amSan Diego

$1,025

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 10/22

10:30 am-5:35 pm

1 stop6h 05m

Great Falls

Sat 10/25

6:15 pm-11:05 pm

1 stop5h 50m

$312

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 10/22

10:30 am-5:35 pm

1 stop6h 05m

Great Falls

Sat 10/25

6:15 pm-9:58 am

2 stops16h 43m

$342

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 10/22

7:15 am-5:35 pm

2 stops9h 20m

Great Falls

Sat 10/25

6:15 pm-8:25 am

2 stops15h 10m

$375

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 9/30

6:15 am-12:25 pm

1 stop5h 10m

Great Falls

Sat 10/4

6:11 pm-10:44 pm

1 stop5h 33m

$542

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 9/30

6:20 am-5:27 pm

2 stops10h 07m

Great Falls

Sat 10/4

5:40 am-8:49 am

1 stop4h 09m

$548

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 9/30

7:29 am-5:27 pm

2 stops8h 58m

Great Falls

Sat 10/4

1:05 pm-10:24 pm

2 stops10h 19m

$553

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 9/23

6:15 am-12:25 pm

1 stop5h 10m

$409

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 9/23

6:20 am-5:27 pm

2 stops10h 07m

$415

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 9/23

2:11 pm-1:37 pm

2 stops22h 26m

$498

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 9/23

7:00 am-1:37 pm

1 stop5h 37m

$587

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 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 5h 10m.
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 September 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 74% of all bookings. The subsequent popular airline is United Airlines at 26%.

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 8,924 reviews		Search United Airlines flights
Delta	PriceFrom $280	Free Cancellation	Rating 7.9 7,957 reviews		Search Delta flights

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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.