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

Delta, Alaska Airlines, 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 89% 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 June 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.

$172 Cheap Flights from San Diego to Great Falls in 2025

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Find the cheapest flights from San Diego to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

9:40 pm - 9:24 amSAN-GTF

10h 44m1 stop

10:14 am - 9:55 amGTF-SAN

24h 41m1 stop

$172

Find Deal

Thu, Jul 10 - Mon, Jul 14

7:31 pm - 9:27 amSAN-GTF

12h 56m1 stop

10:17 am - 6:26 pmGTF-SAN

9h 09m1 stop

$191

Find Deal

Thu, Jun 26 - Mon, Jun 30

2:01 pm - 9:24 amSAN-GTF

18h 23m2 stops

10:14 am - 9:55 amGTF-SAN

24h 41m1 stop

$192

Find Deal

Thu, Jul 10 - Mon, Jul 14

8:15 am - 3:49 pmSAN-GTF

6h 34m1 stop

4:29 pm - 10:53 pmGTF-SAN

7h 24m1 stop

$256Hawaiian Airlines

Find Deal

Wed, Sep 17 - Tue, Sep 23

7:00 am - 5:42 pmSAN-GTF

9h 42m2 stops

6:20 pm - 11:45 pmGTF-SAN

6h 25m1 stop

$262Delta

Find Deal

Wed, Sep 17 - Tue, Sep 23

7:00 am - 5:42 pmSAN-GTF

9h 42m2 stops

11:30 am - 10:49 pmGTF-SAN

12h 19m2 stops

$267Delta

Find Deal

Wed, Sep 17 - Tue, Sep 23

9:28 am - 6:13 pmSAN-GTF

7h 45m1 stop

6:53 pm - 11:47 amGTF-SAN

17h 54m1 stop

$276Alaska Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 3

9:28 am - 6:13 pmSAN-GTF

7h 45m1 stop

6:53 pm - 8:38 amGTF-SAN

14h 45m2 stops

$294Alaska Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 3

12:45 pm - 9:13 pmSAN-GTF

7h 28m1 stop

6:25 am - 11:44 pmGTF-SAN

18h 19m2 stops

$507United Airlines

Find Deal

Fri, Jul 4 - Sat, Jul 12

5:50 pm - 9:13 pmSAN-GTF

26h 23m2 stops

6:25 am - 8:38 pmGTF-SAN

15h 13m1 stop

$580United Airlines

Find Deal

Thu, Jul 3 - Mon, Jul 14

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 31

SAN9:28 amSan Diego

7h 45m

1 stop

GTF6:13 pmGreat Falls

Nov 3

GTF6:53 pmGreat Falls

17h 54m

1 stop

SAN11:47 amSan Diego

$276

Find similar

Alaska Airlines

Oct 31

SAN9:28 amSan Diego

7h 45m

1 stop

GTF6:13 pmGreat Falls

Nov 3

GTF6:53 pmGreat Falls

14h 45m

2 stops

SAN8:38 amSan Diego

$294

Find similar

Alaska Airlines

Oct 31

SAN8:00 amSan Diego

9h 13m

2 stops

GTF6:13 pmGreat Falls

Nov 3

GTF6:53 pmGreat Falls

14h 45m

2 stops

SAN8:38 amSan Diego

$347

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

Jul 4

SAN12:45 pmSan Diego

7h 28m

1 stop

GTF9:13 pmGreat Falls

Jul 12

GTF6:25 amGreat Falls

18h 19m

2 stops

SAN11:44 pmSan Diego

$507

Find similar

United Airlines

Jul 3

SAN5:50 pmSan Diego

26h 23m

2 stops

GTF9:13 pmGreat Falls

Jul 14

GTF6:25 amGreat Falls

15h 13m

1 stop

SAN8:38 pmSan Diego

$580

Find similar

United Airlines

Jul 3

SAN5:50 pmSan Diego

26h 23m

2 stops

GTF9:13 pmGreat Falls

Jul 14

GTF6:25 amGreat Falls

16h 49m

1 stop

SAN10:14 pmSan Diego

$600

Find similar

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 October is another great option to travel to Great Falls, with average flight prices from San Diego averaging around $284.

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

Best Price Found	$184
Fastest flight time	4h 41m
Direct flights	None
Airports in Great Falls	1 airport

The best one-way flight to Great Falls from San Diego in the past 72 hours is $184. The best round-trip flight deal from San Diego to Great Falls found on momondo in the last 72 hours is $172.

The fastest flight from San Diego to Great Falls takes 4h 41m

There are no direct flights from San Diego to Great Falls. Popular non-direct route for this connection is San Diego Airport - Great Falls Airport.

There is 1 airport near Great Falls: Great Falls (GTF)

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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 41m.
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 June 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 81% of all bookings. The subsequent popular airline is United Airlines at 19%.

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 $280	Free Cancellation	Rating 8.0 7,950 reviews		Search Delta flights
United Airlines	PriceFrom $289	Free Cancellation	Rating 7.4 8,790 reviews		Search United Airlines 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.