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

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

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

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

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

The number of operators available for flights from Great Falls Airport to San Diego Airport is 1 as of January 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Great Falls Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$120 Cheap Flights from Great Falls to San Diego in 2026

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Find the cheapest flights from Great Falls to San Diego

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:57 pm - 11:03 pm

GTF

SAN

7h 06m

1 stop

8:26 pm - 4:17 pm

SAN

GTF

18h 51m

1 stop

$303Alaska Airlines

Fri, Mar 13 - Mon, Mar 16

4:57 pm - 11:03 pm

GTF

SAN

7h 06m

1 stop

10:09 pm - 4:17 pm

SAN

GTF

17h 08m

2 stops

$313Alaska Airlines

Fri, Mar 13 - Mon, Mar 16

4:57 pm - 11:03 pm

GTF

SAN

7h 06m

1 stop

4:45 pm - 4:17 pm

SAN

GTF

22h 32m

1 stop

$322Alaska Airlines

Fri, Mar 13 - Mon, Mar 16

4:57 pm - 9:49 pm

GTF

SAN

5h 52m

1 stop

8:59 pm - 4:17 pm

SAN

GTF

18h 18m

2 stops

$331Alaska Airlines

Fri, Mar 13 - Mon, Mar 16

4:57 pm - 8:32 am

GTF

SAN

16h 35m

2 stops

10:09 pm - 4:17 pm

SAN

GTF

17h 08m

2 stops

$341Alaska Airlines

Fri, Mar 13 - Mon, Mar 16

4:57 pm - 7:55 pm

GTF

SAN

27h 58m

2 stops

8:59 pm - 4:17 pm

SAN

GTF

18h 18m

2 stops

$344Alaska Airlines

Fri, Mar 13 - Mon, Mar 16

6:22 pm - 11:48 pm

GTF

SAN

6h 26m

1 stop

6:15 am - 12:24 pm

SAN

GTF

5h 09m

1 stop

$396Delta

Thu, Mar 19 - Sun, Mar 22

1:05 pm - 11:14 pm

GTF

SAN

11h 09m

2 stops

6:15 am - 12:24 pm

SAN

GTF

5h 09m

1 stop

$402Delta

Thu, Mar 19 - Sun, Mar 22

5:59 pm - 2:13 pm

GTF

SAN

21h 14m

2 stops

9:37 am - 5:19 pm

SAN

GTF

6h 42m

1 stop

$494Alaska Airlines

Tue, Jan 27 - Sat, Jan 31

5:59 pm - 9:50 am

GTF

SAN

16h 51m

2 stops

9:37 am - 5:19 pm

SAN

GTF

6h 42m

1 stop

$529Alaska Airlines

Tue, Jan 27 - Sat, Jan 31

Delta flights from Great Falls to San Diego

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

Delta

Mar 19

GTF6:22 pmGreat Falls

6h 26m

1 stop

SAN11:48 pmSan Diego

Mar 22

SAN6:15 amSan Diego

5h 09m

1 stop

GTF12:24 pmGreat Falls

$396

Delta

Mar 19

GTF1:05 pmGreat Falls

11h 09m

2 stops

SAN11:14 pmSan Diego

Mar 22

SAN6:15 amSan Diego

5h 09m

1 stop

GTF12:24 pmGreat Falls

$402

Delta

May 15

GTF1:10 pmGreat Falls

10h 45m

2 stops

SAN10:55 pmSan Diego

May 17

SAN6:15 amSan Diego

5h 08m

1 stop

GTF12:23 pmGreat Falls

$438

United Airlines flights from Great Falls to San Diego

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

United Airlines

Jan 27

GTF2:29 pmGreat Falls

7h 13m

1 stop

SAN8:42 pmSan Diego

Jan 31

SAN4:10 pmSan Diego

28h 43m

1 stop

GTF9:53 pmGreat Falls

$634

United Airlines

Jan 27

GTF2:29 pmGreat Falls

7h 13m

1 stop

SAN8:42 pmSan Diego

Jan 31

SAN4:10 pmSan Diego

28h 43m

1 stop

GTF9:53 pmGreat Falls

$685

United Airlines

Jan 23

GTF2:29 pmGreat Falls

9h 08m

1 stop

SAN10:37 pmSan Diego

Jan 27

SAN4:10 pmSan Diego

20h 38m

1 stop

GTF1:48 pmGreat Falls

$700

Fly from

Fly to

Route

Depart

Return

Price

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 3/13

4:57 pm-11:03 pm

1 stop7h 06m

San Diego

Mon 3/16

8:26 pm-4:17 pm

1 stop18h 51m

$303

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 3/13

4:57 pm-11:03 pm

1 stop7h 06m

San Diego

Mon 3/16

10:09 pm-4:17 pm

2 stops17h 08m

$313

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 3/13

4:57 pm-11:03 pm

1 stop7h 06m

San Diego

Mon 3/16

4:45 pm-4:17 pm

1 stop22h 32m

$322

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 3/13

4:57 pm-9:49 pm

1 stop5h 52m

San Diego

Mon 3/16

8:59 pm-4:17 pm

2 stops18h 18m

$331

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 3/13

4:57 pm-8:32 am

2 stops16h 35m

San Diego

Mon 3/16

10:09 pm-4:17 pm

2 stops17h 08m

$341

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 3/13

4:57 pm-7:55 pm

2 stops27h 58m

San Diego

Mon 3/16

8:59 pm-4:17 pm

2 stops18h 18m

$344

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Thu 3/19

6:22 pm-11:48 pm

1 stop6h 26m

San Diego

Sun 3/22

6:15 am-12:24 pm

1 stop5h 09m

$396

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Thu 3/19

1:05 pm-11:14 pm

2 stops11h 09m

San Diego

Sun 3/22

6:15 am-12:24 pm

1 stop5h 09m

$402

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Tue 1/27

5:59 pm-2:13 pm

2 stops21h 14m

San Diego

Sat 1/31

9:37 am-5:19 pm

1 stop6h 42m

$494

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Tue 1/27

5:59 pm-9:50 am

2 stops16h 51m

San Diego

Sat 1/31

9:37 am-5:19 pm

1 stop6h 42m

$529

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Great Falls to San Diego

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 San Diego?

If you are unable to visit San Diego during the month of October, then departing from Great Falls during the month January is also very affordable. Most momondo users find prices during this month for around $308.

When to book flights from Great Falls to San Diego

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

Estimated round-trip price

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

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

Fastest flight time	4h 29m
Direct flights	None

The fastest flight from Great Falls to San Diego takes 4h 29m

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

Search flight deals

How far is Great Falls to San Diego by plane?
The distance between Great Falls and San Diego is about 1065.8 mi. In terms of flight time, this usually takes a little over 4h 29m.
When did momondo last update prices for flights from Great Falls Airport to San Diego Airport?
Prices for flights from Great Falls Airport to San Diego Airport refresh daily.
How many operators does momondo search for flights from Great Falls Airport to San Diego Airport?
The number of operators available for flights from Great Falls Airport to San Diego Airport is 1 as of January 2026.
How old do you have to be to fly from Great Falls Airport to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Great Falls Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Great Falls to San Diego?
Based on momondo bookings for flights between Great Falls and San Diego, the leading airline is Delta, making up 100% of the total bookings.

Best airlines flying from Great Falls to San Diego

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $194	Free Cancellation	Rating 7.9 8,051 reviews		Search Delta flights

Coronado

Chula Vista

El Cajon

Julian

Poway

National City

Imperial Beach

Borrego Springs

San Ysidro

La Mesa

Alpine

Lemon Grove

Santee

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Great Falls.

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

Flights from Great Falls to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Great Falls to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Great Falls to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.