$219+ Cheap flights from Great Falls to San Diego (GTF - SAN)
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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SAN
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Great Falls to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Great Falls to San Diego
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Best
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Cheapest flights from Great Falls to San DiegoExplore the most affordable flight options available from Great Falls to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Great Falls to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 12/54:51 pm -
1 stop5h 26m
Wed 12/96:15 am -
1 stop8h 56m
Deal found 10/23![Alaska Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 10/26. 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 12/55:35 am -
2 stops8h 21m
Wed 12/97:20 am -
2 stops9h 19m
Deal found 10/26![Delta logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 12/104:51 pm -
1 stop25h 54m
Mon 12/145:38 pm -
1 stop21h 33m
Deal found 10/26![Alaska Airlines logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/224:41 pm -
1 stop17h 07m
Tue 11/246:15 am -
1 stop8h 46m
Deal found 10/22![Alaska Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 10/22. 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.
Sun 11/221:21 pm -
2 stops10h 33m
Tue 11/247:20 am -
2 stops9h 19m
Deal found 10/22![Delta logo]()
$506
Best flights from Great Falls to San DiegoDiscover carefully curated flight deals from Great Falls to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Great Falls to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 12/54:51 pm -
1 stop5h 26m
Wed 12/96:15 am -
1 stop8h 56m
Deal found 10/24![Alaska Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 10/24. 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.
Wed 2/175:30 am -
2 stops10h 06m
Sun 2/216:50 am -
2 stops9h 53m
Deal found 10/24![Delta logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 2/14:08 pm -
2 stops16h 08m
Tue 2/98:36 am -
1 stop5h 52m
Deal found 10/26![Alaska Airlines logo]()
$456
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 3/14:55 pm -
1 stop23h 57m
Fri 3/53:15 pm -
2 stops23h 58m
Deal found 10/22![Alaska Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/224:41 pm -
1 stop17h 07m
Tue 11/246:15 am -
1 stop8h 46m
Deal found 10/22![Alaska Airlines logo]()
$501
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 12/104:51 pm -
1 stop7h 08m
Mon 12/146:43 pm -
1 stop20h 28m
Deal found 10/23![Alaska Airlines logo]()
$509
Last-minute flights from Great Falls to San DiegoDiscover last-minute flight deals from Great Falls to San Diego. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Great Falls to San Diego. Data last updated October 26, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Wed 11/45:10 pm -
2 stops28h 30m
Mon 11/96:35 pm -
2 stops20h 55m
Deal found 10/22![Alaska Airlines logo]()
$642
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 11/65:10 pm -
2 stops16h 32m
Sat 11/147:10 am -
2 stops8h 20m
Deal found 10/22![Alaska Airlines logo]()
$580
This Gotogate deal was found by Cheapflights users on 10/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:10 pm -
2 stops17h 55m
Thu 11/128:23 pm -
2 stops19h 07m
Deal found 10/26![Alaska Airlines logo]()
$545
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/95:10 pm -
2 stops17h 47m
Fri 11/1310:30 pm -
2 stops17h 00m
Deal found 10/25![Alaska Airlines logo]()
$569
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 11/105:10 pm -
2 stops26h 31m
Sat 11/148:12 pm -
2 stops19h 18m
Deal found 10/26![Alaska Airlines logo]()
$573
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/224:41 pm -
1 stop17h 07m
Tue 11/246:15 am -
1 stop8h 46m
Deal found 10/22![Alaska Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 10/22. 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.
Sun 11/221:21 pm -
2 stops10h 33m
Tue 11/247:20 am -
2 stops9h 19m
Deal found 10/22![Delta logo]()
$506
One-way flights from Great Falls to San DiegoSearch for one-way flight options from Great Falls to San Diego. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Great Falls to San Diego. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Delta deal was found by Cheapflights users on 10/26. 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 12/101:19 pm -
2 stops10h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Delta logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/1011:32 am -
3 stops45h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$238
Find flight deals from Great Falls to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to San Diego (SAN). 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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $362 (Priceline) |
One-way from | $256 (Alaska Airlines) |
Popular in | November |
Cheapest in | January |
Average price | $571 |
Cheapflights Fare Finder
Customize your flight search to find flights from Great Falls to San Diego 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 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from Great Falls to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Thu 12/10
11:32 am-8:02 am
3 stops45h 30m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$238
Quickest round-trip
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Thu 12/10
5:35 am-8:58 am
1 stop4h 23m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$277
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Sat 12/5
4:51 pm-9:17 pm
1 stop5h 26m
San Diego
Wed 12/9
6:15 am-4:11 pm
1 stop8h 56m
$362
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Mon 2/1
4:08 pm-7:16 am
2 stops16h 08m
San Diego
Tue 2/9
8:36 am-3:28 pm
1 stop5h 52m
$456
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Mon 3/1
4:55 pm-3:52 pm
1 stop23h 57m
San Diego
Fri 3/5
3:15 pm-4:13 pm
2 stops23h 58m
$459
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Wed 2/17
5:30 am-2:36 pm
2 stops10h 06m
San Diego
Sun 2/21
6:50 am-5:43 pm
2 stops9h 53m
$498
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Sun 11/22
4:41 pm-8:48 am
1 stop17h 07m
San Diego
Tue 11/24
6:15 am-4:01 pm
1 stop8h 46m
$501
Great FallsSan Diego
GTF Great Falls - SAN San Diego
GTFSAN
Great Falls
Thu 12/10
4:51 pm-10:59 pm
1 stop7h 08m
San Diego
Mon 12/14
6:43 pm-4:11 pm
1 stop20h 28m
$509
Sorted by cheapest first
Compare providers for flights from Great Falls to San Diego
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to San Diego in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Great Falls-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Great Falls-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Great Falls to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Great Falls with our price prediction graph.
GTF-SAN
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 Great Falls to San Diego
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated October 26, 2026.
Read reviews from past customers who have flown Delta from Great Falls to San Diego. 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.
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Great Falls to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
Lemon Grove
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Great Falls and San Diego flights
Browse other Great Falls and San Diego flight options. Last updated on October 26, 2026.
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Top airline flying from Great Falls to San Diego
Discover the top airline that operate flights from Great Falls to San Diego. 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 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$194 | Average$571 | FlexibilityNo cancel fee | On-timeN/A |