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Great Falls

$214+ Cheap flights from San Diego to Great Falls (SAN - GTF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — GTF
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from San Diego to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$214
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$480
From San Diego to Great Falls
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from San Diego to Great Falls

Cheapest flights from San Diego to Great Falls
Explore the most affordable flight options available from San Diego to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:17 pmSAN - GTF
1 stop27h 00mMultiple Airlines
Mon 9/16:07 pmGTF - SAN
1 stop14h 14mMultiple Airlines
Deal found 8/13$214
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:45 amSAN - GTF
1 stop6h 42mDelta
Tue 9/306:11 pmGTF - SAN
1 stop6h 33mDelta
Deal found 8/13$300
This Alaska Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/278:15 amSAN - GTF
1 stop6h 34mAlaska Airlines
Tue 9/304:29 pmGTF - SAN
2 stops16h 12mAlaska Airlines
Deal found 8/13$309
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:25 pmSAN - GTF
1 stop4h 41mDelta
Sun 11/21:08 pmGTF - SAN
1 stop6h 35mDelta
Deal found 8/14$314
This Alaska Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:01 amSAN - GTF
2 stops9h 09mAlaska Airlines
Sun 11/26:50 pmGTF - SAN
2 stops15h 56mAlaska Airlines
Deal found 8/14$464
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:21 pmSAN - GTF
2 stops22h 16mUnited Airlines
Mon 9/17:00 amGTF - SAN
1 stop6h 57mUnited Airlines
Deal found 8/13$664
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1612:45 pmSAN - GTF
1 stop7h 28mUnited Airlines
Sat 8/237:00 amGTF - SAN
1 stop14h 25mUnited Airlines
Deal found 8/13$828
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:20 amSAN - GTF
2 stops10h 06mDelta
Mon 9/111:43 amGTF - SAN
2 stops7h 22mDelta
Deal found 8/13$837
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/165:00 pmSAN - GTF
1 stop4h 45mDelta
Sat 8/2311:43 amGTF - SAN
2 stops7h 34mDelta
Deal found 8/13$885

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Great Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from San Diego to Great Falls that are best for you.

Fly from

San Diego

Fly to

Great Falls

Route

Depart

Return

Price

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 8/28

1:17 pm-5:17 pm

1 stop27h 00m

Great Falls

Mon 9/1

6:07 pm-7:21 am

1 stop14h 14m

$214

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Sat 9/27

9:45 am-5:27 pm

1 stop6h 42m

Great Falls

Tue 9/30

6:11 pm-11:44 pm

1 stop6h 33m

$300

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Sat 9/27

8:15 am-3:49 pm

1 stop6h 34m

Great Falls

Tue 9/30

4:29 pm-7:41 am

2 stops16h 12m

$309

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 10/31

6:15 am-12:28 pm

1 stop5h 13m

Great Falls

Sun 11/2

6:09 pm-11:58 pm

1 stop6h 49m

$314

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 10/31

8:01 am-6:10 pm

2 stops9h 09m

Great Falls

Sun 11/2

6:50 pm-9:46 am

2 stops15h 56m

$464

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 8/28

2:21 pm-1:37 pm

2 stops22h 16m

Great Falls

Mon 9/1

7:00 am-12:57 pm

1 stop6h 57m

$664

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 8/28

6:20 am-5:26 pm

2 stops10h 06m

Great Falls

Mon 9/1

11:43 am-6:05 pm

2 stops7h 22m

$837

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from San Diego to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Great Falls

What is the cheapest month to book a flight from San Diego to Great Falls?

Currently, January is the cheapest month in which you can book a flight from San Diego to Great Falls (average of $367). Flying from San Diego to Great Falls in July is currently the most expensive (average of $574). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Great Falls

Get insights into the airlines that provide service to Great Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Great Falls. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown Delta and United Airlines from San Diego to Great Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from San Diego to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Diego to Great Falls round-trip?

    Currently priced at $199, United Airlines will fly you from San Diego to Great Falls and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $280. United Airlines is 54% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from San Diego to Great Falls that include hotel bookings?

    Yes. In addition to deals on San Diego to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Great Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Great Falls.

  • Can I find deals for business class flights from San Diego to Great Falls?

    Yes. Cheapflights offers flight deals from San Diego to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Great Falls?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Great Falls (average of $367). Flying from San Diego to Great Falls in July is currently the most expensive (average of $574). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

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Top 2 airlines flying from San Diego to Great Falls

Discover the top 2 airlines that operate flights from San Diego to Great Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$199Average$566FlexibilityNo cancel feeOn-time69%
DeltaCheapest$280Average$383FlexibilityNo cancel feeOn-timeN/A

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