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

Alaska Airlines and Delta 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.

$133 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

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:59 pm - 7:19 pm

GTF

SAN

26h 20m1 stop

6:15 am - 5:19 pm

SAN

GTF

10h 04m1 stop

$212Alaska Airlines

Tue, Jan 27 - Sat, Jan 31

6:28 pm - 3:46 pm

GTF

SAN

22h 18m1 stop

6:15 am - 5:48 pm

SAN

GTF

10h 33m1 stop

$214Alaska Airlines

Sat, Feb 21 - Sat, Feb 28

10:20 am - 1:13 pm

GTF

SAN

27h 53m1 stop

7:21 pm - 10:52 am

SAN

GTF

14h 31m1 stop

$220Multiple Airlines

Mon, Mar 30 - Thu, Apr 9

5:06 pm - 6:39 pm

GTF

SAN

26h 33m1 stop

6:15 am - 4:26 pm

SAN

GTF

9h 11m1 stop

$222Alaska Airlines

Mon, Mar 30 - Wed, Apr 8

5:59 pm - 10:07 am

GTF

SAN

17h 08m1 stop

6:15 am - 5:19 pm

SAN

GTF

10h 04m1 stop

$234Alaska Airlines

Tue, Jan 27 - Sat, Jan 31

6:22 pm - 10:17 am

GTF

SAN

16h 55m2 stops

9:46 am - 5:42 pm

SAN

GTF

6h 56m1 stop

$241Delta

Tue, Mar 31 - Wed, Apr 8

5:06 pm - 3:46 pm

GTF

SAN

23h 40m1 stop

6:15 am - 4:26 pm

SAN

GTF

9h 11m1 stop

$242Alaska Airlines

Tue, Mar 31 - Wed, Apr 8

5:59 pm - 2:13 pm

GTF

SAN

21h 14m2 stops

9:37 am - 5:19 pm

SAN

GTF

6h 42m1 stop

$243Alaska Airlines

Tue, Jan 27 - Sat, Jan 31

6:22 pm - 12:49 pm

GTF

SAN

19h 27m2 stops

9:46 am - 5:42 pm

SAN

GTF

6h 56m1 stop

$251Delta

Mon, Mar 30 - Wed, Apr 8

5:06 pm - 11:58 pm

GTF

SAN

7h 52m1 stop

10:48 am - 4:26 pm

SAN

GTF

28h 38m1 stop

$252Alaska Airlines

Mon, Mar 30 - Tue, Apr 7

Alaska Airlines flights from Great Falls to San Diego

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

Alaska Airlines

Jan 27

GTF5:59 pmGreat Falls

26h 20m

1 stop

SAN7:19 pmSan Diego

Jan 31

SAN6:15 amSan Diego

10h 04m

1 stop

GTF5:19 pmGreat Falls

$212

Alaska Airlines

Feb 21

GTF6:28 pmGreat Falls

22h 18m

1 stop

SAN3:46 pmSan Diego

Feb 28

SAN6:15 amSan Diego

10h 33m

1 stop

GTF5:48 pmGreat Falls

$214

Alaska Airlines

Mar 30

GTF5:06 pmGreat Falls

26h 33m

1 stop

SAN6:39 pmSan Diego

Apr 8

SAN6:15 amSan Diego

9h 11m

1 stop

GTF4:26 pmGreat Falls

$222

Delta flights from Great Falls to San Diego

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

Delta

Mar 31

GTF6:22 pmGreat Falls

16h 55m

2 stops

SAN10:17 amSan Diego

Apr 8

SAN9:46 amSan Diego

6h 56m

1 stop

GTF5:42 pmGreat Falls

$241

Delta

Mar 30

GTF6:22 pmGreat Falls

25h 00m

2 stops

SAN6:22 pmSan Diego

Apr 7

SAN5:01 pmSan Diego

4h 29m

1 stop

GTF10:30 pmGreat Falls

$251

Delta

Apr 1

GTF1:05 pmGreat Falls

10h 23m

2 stops

SAN10:28 pmSan Diego

Apr 7

SAN5:01 pmSan Diego

4h 29m

1 stop

GTF10:30 pmGreat Falls

$261

Fly from

Fly to

Route

Depart

Return

Price

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Tue 1/27

5:59 pm-7:19 pm

1 stop26h 20m

San Diego

Sat 1/31

6:15 am-5:19 pm

1 stop10h 04m

$212

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Sat 2/21

6:28 pm-3:46 pm

1 stop22h 18m

San Diego

Sat 2/28

6:15 am-5:48 pm

1 stop10h 33m

$214

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Mon 3/30

10:20 am-1:13 pm

1 stop27h 53m

San Diego

Thu 4/9

7:21 pm-10:52 am

1 stop14h 31m

$220

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Mon 3/30

5:06 pm-6:39 pm

1 stop26h 33m

San Diego

Wed 4/8

6:15 am-4:26 pm

1 stop9h 11m

$222

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Tue 1/27

5:59 pm-10:07 am

1 stop17h 08m

San Diego

Sat 1/31

6:15 am-5:19 pm

1 stop10h 04m

$234

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Tue 3/31

6:22 pm-10:17 am

2 stops16h 55m

San Diego

Wed 4/8

9:46 am-5:42 pm

1 stop6h 56m

$241

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Tue 3/31

5:06 pm-3:46 pm

1 stop23h 40m

San Diego

Wed 4/8

6:15 am-4:26 pm

1 stop9h 11m

$242

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

$243

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Mon 3/30

6:22 pm-12:49 pm

2 stops19h 27m

San Diego

Wed 4/8

9:46 am-5:42 pm

1 stop6h 56m

$251

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Mon 3/30

5:06 pm-11:58 pm

1 stop7h 52m

San Diego

Tue 4/7

10:48 am-4:26 pm

1 stop28h 38m

$252

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 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 28m
Direct flights	None

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

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 28m.
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 $224	Free Cancellation	Rating 7.9 8,025 reviews		Search Delta flights

Coronado

Chula Vista

El Cajon

Julian

Poway

National City

Imperial Beach

Borrego Springs

La Mesa

San Ysidro

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.