$257+ Cheap flights from San Diego to Great Falls (SAN - GTF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — GTF
Sep 20 — Sep 271
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Diego to Great Falls 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 San Diego to Great Falls
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to Great FallsExplore 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 21, 2026.
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 21, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 11/149:15 am -
1 stop6h 04m
Tue 11/174:59 pm -
1 stop28h 23m
Deal found 8/18![Alaska Airlines logo]()
$352
This Expedia deal was found by Cheapflights users on 8/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:15 am -
1 stop6h 04m
Tue 11/174:59 pm -
1 stop22h 48m
Deal found 8/19![Alaska Airlines logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 12/17:05 pm -
1 stop20h 08m
Tue 12/154:55 pm -
1 stop27h 57m
Deal found 8/17![Alaska Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 11/110:54 am -
2 stops28h 25m
Sun 11/154:59 pm -
1 stop28h 07m
Deal found 8/18![Alaska Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 8/19. 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 12/3011:15 am -
1 stop5h 28m
Tue 1/51:10 pm -
2 stops10h 39m
Deal found 8/19![Delta logo]()
$444
This Booking.com deal was found by Cheapflights users on 8/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:50 pm -
1 stop23h 49m
Thu 9/175:19 pm -
1 stop7h 25m
Deal found 8/19![Alaska Airlines logo]()
$449
Best flights from San Diego to Great FallsDiscover carefully curated flight deals from San Diego to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
Discover carefully curated flight deals from San Diego to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 11/149:15 am -
1 stop6h 04m
Tue 11/174:59 pm -
1 stop28h 23m
Deal found 8/19![Alaska Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 8/19. 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 12/3011:15 am -
1 stop5h 28m
Tue 1/51:10 pm -
2 stops10h 39m
Deal found 8/19![Delta logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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 12/112:32 pm -
2 stops26h 41m
Tue 12/154:55 pm -
1 stop22h 42m
Deal found 8/20![Alaska Airlines logo]()
$396
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 10/86:15 am -
1 stop9h 20m
Mon 10/125:15 pm -
1 stop19h 35m
Deal found 8/17![Alaska Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 9/126:35 pm -
1 stop21h 04m
Wed 9/165:19 pm -
1 stop7h 16m
Deal found 8/16![Alaska Airlines logo]()
$471
Last-minute flights from San Diego to Great FallsDiscover last-minute flight deals from San Diego to Great Falls. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Great Falls. Data last updated August 21, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 8/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:57 am -
2 stops6h 41m
Mon 9/215:19 pm -
1 stop19h 26m
Deal found 8/17![Alaska Airlines logo]()
$703
This Booking.com deal was found by Cheapflights users on 8/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:50 pm -
1 stop23h 49m
Thu 9/175:19 pm -
1 stop7h 25m
Deal found 8/19![Alaska Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 9/126:35 pm -
1 stop21h 04m
Wed 9/165:19 pm -
1 stop7h 16m
Deal found 8/16![Alaska Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 8/17. 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.
Mon 9/145:01 pm -
1 stop4h 36m
Mon 9/211:15 pm -
1 stop5h 51m
Deal found 8/17![Delta logo]()
$544
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 9/145:36 pm -
2 stops22h 03m
Mon 9/215:19 pm -
1 stop18h 27m
Deal found 8/17![Alaska Airlines logo]()
$665
One-way flights from San Diego to Great FallsSearch for one-way flight options from San Diego to Great Falls. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
Search for one-way flight options from San Diego to Great Falls. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This Delta deal was found by Cheapflights users on 8/21. 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.
Mon 1/46:15 am -
1 stop5h 12m
Deal found 8/21![Delta logo]()
$257
This Booking.com deal was found by Cheapflights users on 8/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/411:08 am -
2 stops27h 20m
Deal found 8/21![Alaska Airlines logo]()
$356
This Booking.com deal was found by Cheapflights users on 8/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:57 am -
2 stops6h 41m
Deal found 8/17![Alaska Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 8/17. 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 8/285:01 pm -
1 stop4h 37m
Deal found 8/17![Delta logo]()
$477
This Delta deal was found by Cheapflights users on 8/20. 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 9/36:15 am -
2 stops10h 23m
Deal found 8/20![Delta logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/39:30 pm -
3 stops42h 15m
Deal found 8/20![Multiple Airlines logo]()
$779
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Fri 8/286:55 am -
3 stops32h 43m
Deal found 8/17![Multiple Airlines logo]()
$921
Find 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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $352 (Alaska Airlines) |
One-way from | $257 (Delta) |
Popular in | November |
Cheapest in | July |
Average price | $871 |
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 7,457,451 searches. Data last updated August 21, 2026.
Use the filters below to find and compare flights from San Diego to Great Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Sat 11/14
9:15 am-4:19 pm
1 stop6h 04m
Great Falls
Tue 11/17
4:59 pm-8:22 pm
1 stop28h 23m
$352
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Tue 12/1
12:32 pm-4:13 pm
2 stops26h 41m
Great Falls
Tue 12/15
4:55 pm-2:37 pm
1 stop22h 42m
$396
Quickest round-trip
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Wed 12/30
11:15 am-5:43 pm
1 stop5h 28m
Great Falls
Tue 1/5
1:10 pm-10:49 pm
2 stops10h 39m
$444
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Thu 10/8
6:15 am-4:35 pm
1 stop9h 20m
Great Falls
Mon 10/12
5:15 pm-11:50 am
1 stop19h 35m
$449
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Sat 9/12
6:35 pm-4:39 pm
1 stop21h 04m
Great Falls
Wed 9/16
5:19 pm-11:35 pm
1 stop7h 16m
$471
Cheapest one-way
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Mon 1/4
6:15 am-12:27 pm
1 stop5h 12m
$257
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Mon 1/4
11:08 am-3:28 pm
2 stops27h 20m
$356
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Thu 9/3
9:46 am-5:38 pm
1 stop6h 52m
$357
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Fri 8/28
8:57 am-4:38 pm
2 stops6h 41m
$357
Quickest one-way
San DiegoGreat Falls
SAN San Diego - GTF Great Falls
SANGTF
San Diego
Fri 8/28
5:01 pm-10:38 pm
1 stop4h 37m
$477
Sorted by cheapest first
Compare providers for flights from San Diego to Great Falls
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 San Diego to Great Falls in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Diego-Great Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Great Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-Great Falls 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 San Diego-Great Falls 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 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.
SAN-GTF
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.
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 21, 2026.
Read reviews from past customers who have flown Delta 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.
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
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.
Traveling to a place near Great Falls?
Book flights to Great Falls if you plan to visit one of these locationsShelby
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Great Falls flight routes
Other flight options
Other flights from San Diego
Popular flights
Alternative routes for San Diego to Great Falls
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Great Falls by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Great Falls by cabin class
Find flights from San Diego to Great Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Great Falls
Explore flights to Great Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 21, 2026.
San Diego and Great Falls flights
Browse other San Diego and Great Falls flight options. Last updated on August 21, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on August 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from San Diego to Great Falls
Discover the top airline 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 7,457,451 searches. Data last updated August 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$252 | Average$463 | FlexibilityNo cancel fee | On-timeN/A |