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

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

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 August 2026, there is 1 operator 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.

$221 Cheap Flights from San Diego to Great Falls in 2026

Discover deals from 900+ travel sites with momondo.

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.

7:05 pm - 4:13 pmSAN San Diego-GTF Great Falls

20h 08m1 stop Seattle/Tacoma Intl

4:55 pm - 7:52 pmGTF Great Falls-SAN San Diego

27h 57m1 stop Seattle/Tacoma Intl

$392Alaska Airlines

Tue, Dec 1 - Tue, Dec 15

12:32 pm - 4:13 pmSAN San Diego-GTF Great Falls

26h 41m2 stops Sacramento Intl Seattle/Tacoma Intl

4:55 pm - 2:37 pmGTF Great Falls-SAN San Diego

22h 42m1 stop Seattle/Tacoma Intl

$396Alaska Airlines

Tue, Dec 1 - Tue, Dec 15

11:52 am - 4:13 pmSAN San Diego-GTF Great Falls

27h 21m1 stop Seattle/Tacoma Intl

4:55 pm - 10:56 pmGTF Great Falls-SAN San Diego

7h 01m1 stop Seattle/Tacoma Intl

$422Alaska Airlines

Tue, Dec 1 - Tue, Dec 15

7:05 pm - 4:13 pmSAN San Diego-GTF Great Falls

20h 08m1 stop Seattle/Tacoma Intl

4:55 pm - 10:56 pmGTF Great Falls-SAN San Diego

7h 01m1 stop Seattle/Tacoma Intl

$422Alaska Airlines

Tue, Dec 1 - Tue, Dec 15

10:00 am - 4:13 pmSAN San Diego-GTF Great Falls

29h 13m2 stops Sacramento Intl Seattle/Tacoma Intl

4:55 pm - 10:56 pmGTF Great Falls-SAN San Diego

7h 01m1 stop Seattle/Tacoma Intl

$427Alaska Airlines

Tue, Dec 1 - Tue, Dec 15

7:00 am - 4:13 pmSAN San Diego-GTF Great Falls

8h 13m1 stop Seattle/Tacoma Intl

4:55 pm - 3:52 pmGTF Great Falls-SAN San Diego

23h 57m1 stop Seattle/Tacoma Intl

$428Alaska Airlines

Thu, Dec 10 - Mon, Dec 14

5:51 pm - 4:13 pmSAN San Diego-GTF Great Falls

21h 22m1 stop Seattle/Tacoma Intl

4:55 pm - 3:52 pmGTF Great Falls-SAN San Diego

23h 57m1 stop Seattle/Tacoma Intl

$428Alaska Airlines

Thu, Dec 10 - Mon, Dec 14

5:05 pm - 4:13 pmSAN San Diego-GTF Great Falls

22h 08m2 stops Fresno Airterminal Seattle/Tacoma Intl

4:55 pm - 10:56 pmGTF Great Falls-SAN San Diego

7h 01m1 stop Seattle/Tacoma Intl

$429Alaska Airlines

Tue, Dec 1 - Tue, Dec 15

6:15 am - 5:41 pmSAN San Diego-GTF Great Falls

10h 26m2 stops Los Angeles Los Angeles Salt Lake City

1:13 pm - 10:54 pmGTF Great Falls-SAN San Diego

10h 41m2 stops Salt Lake City Seattle/Tacoma Intl

$449Delta

Tue, Dec 1 - Tue, Dec 15

11:02 am - 10:44 pmSAN San Diego-GTF Great Falls

10h 42m2 stops Seattle/Tacoma Intl Salt Lake City

5:35 am - 12:51 pmGTF Great Falls-SAN San Diego

8h 16m2 stops Salt Lake City Seattle/Tacoma Intl

$449Delta

Sun, Nov 1 - Sun, Nov 15

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

United Airlines flights from San Diego to Great Falls

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

United Airlines

Aug 31

SAN6:30 amSan Diego

5h 59m

1 stop

GTF1:29 pmGreat Falls

Sep 11

GTF6:15 amGreat Falls

7h 46m

1 stop

SAN1:01 pmSan Diego

$659

United Airlines

Aug 31

SAN9:49 amSan Diego

10h 23m

2 stops

GTF9:12 pmGreat Falls

Sep 11

GTF6:15 amGreat Falls

7h 46m

1 stop

SAN1:01 pmSan Diego

$740

United Airlines

Sep 8

SAN11:19 amSan Diego

8h 53m

2 stops

GTF9:12 pmGreat Falls

Sep 11

GTF6:15 amGreat Falls

7h 46m

1 stop

SAN1:01 pmSan Diego

$748

Alaska Airlines flights from San Diego to Great Falls

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

Alaska Airlines

Dec 1

SAN7:05 pmSan Diego

20h 08m

1 stop

GTF4:13 pmGreat Falls

Dec 15

GTF4:55 pmGreat Falls

27h 57m

1 stop

SAN7:52 pmSan Diego

$392

Alaska Airlines

Dec 1

SAN12:32 pmSan Diego

26h 41m

2 stops

GTF4:13 pmGreat Falls

Dec 15

GTF4:55 pmGreat Falls

22h 42m

1 stop

SAN2:37 pmSan Diego

$396

Alaska Airlines

Dec 1

SAN11:52 amSan Diego

27h 21m

1 stop

GTF4:13 pmGreat Falls

Dec 15

GTF4:55 pmGreat Falls

7h 01m

1 stop

SAN10:56 pmSan Diego

$422

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 12/1

7:05 pm-4:13 pm

1 stop20h 08m

Great Falls

Tue 12/15

4:55 pm-7:52 pm

1 stop27h 57m

$392

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 12/1

12:32 pm-4:13 pm

2 stops26h 41m

Great Falls

Tue 12/15

4:55 pm-2:37 pm

1 stop22h 42m

$396

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 12/1

11:52 am-4:13 pm

1 stop27h 21m

Great Falls

Tue 12/15

4:55 pm-10:56 pm

1 stop7h 01m

$422

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 12/1

7:05 pm-4:13 pm

1 stop20h 08m

Great Falls

Tue 12/15

4:55 pm-10:56 pm

1 stop7h 01m

$422

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 12/1

10:00 am-4:13 pm

2 stops29h 13m

Great Falls

Tue 12/15

4:55 pm-10:56 pm

1 stop7h 01m

$427

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Thu 12/10

7:00 am-4:13 pm

1 stop8h 13m

Great Falls

Mon 12/14

4:55 pm-3:52 pm

1 stop23h 57m

$428

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Thu 12/10

5:51 pm-4:13 pm

1 stop21h 22m

Great Falls

Mon 12/14

4:55 pm-3:52 pm

1 stop23h 57m

$428

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 12/1

5:05 pm-4:13 pm

2 stops22h 08m

Great Falls

Tue 12/15

4:55 pm-10:56 pm

1 stop7h 01m

$429

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 12/1

6:15 am-5:41 pm

2 stops10h 26m

Great Falls

Tue 12/15

1:13 pm-10:54 pm

2 stops10h 41m

$449

Quickest round-trip

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Sun 11/1

11:02 am-10:44 pm

2 stops10h 42m

Great Falls

Sun 11/15

5:35 am-12:51 pm

2 stops8h 16m

$449

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 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 July is another great option to travel to Great Falls, with average flight prices from San Diego averaging around $252.

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

Fastest flight time	4h 28m
Direct flights	None

The fastest flight from San Diego to Great Falls takes 4h 28m

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

Frequently asked questions about flying from San Diego to Great Falls

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 28m.
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 August 2026, there is 1 operator 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 100% of all bookings.

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
Delta	PriceFrom $252	Free Cancellation	Rating 7.8 8,508 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.