$149+ Cheap flights from Great Falls to San Francisco (GTF - SFO)
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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SFO
Aug 22 — Aug 291
Round-trip
1 adult, Economy
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Find cheap flights from Great Falls to San Francisco 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 Francisco
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Cheapest flights from Great Falls to San FranciscoExplore the most affordable flight options available from Great Falls to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
Explore the most affordable flight options available from Great Falls to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:18 pm
GTF
- SFO
1 stop7h 22m
Alaska Airlines
Tue 9/19:03 am
SFO
- GTF
1 stop6h 35m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 7/19. 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.
Tue 8/181:08 pm
GTF
- SFO
2 stops7h 35m
Delta
Tue 8/255:08 pm
SFO
- GTF
1 stop4h 30m
Delta
Deal found 7/19![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 7/22. 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.
Tue 9/295:40 am
GTF
- SFO
1 stop7h 38m
Delta
Fri 10/25:45 am
SFO
- GTF
1 stop5h 50m
Delta
Deal found 7/22![Delta logo]()
$308
This Delta deal was found by Cheapflights users on 7/22. 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.
Mon 9/286:21 pm
GTF
- SFO
1 stop4h 54m
Delta
Thu 10/17:20 am
SFO
- GTF
2 stops9h 21m
Delta
Deal found 7/22![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 7/22. 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.
Tue 9/295:40 am
GTF
- SFO
2 stops6h 13m
Delta
Sun 10/47:20 am
SFO
- GTF
2 stops9h 21m
Delta
Deal found 7/22![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 7/22. 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.
Thu 10/15:40 am
GTF
- SFO
1 stop4h 20m
Delta
Thu 10/15:19 pm
SFO
- GTF
1 stop4h 18m
Delta
Deal found 7/22![Delta logo]()
$323
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 10/25:40 am
GTF
- SFO
1 stop4h 20m
Delta
Fri 10/25:19 pm
SFO
- GTF
1 stop4h 18m
Delta
Deal found 7/22![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 7/21. 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.
Wed 8/56:18 pm
GTF
- SFO
1 stop6h 39m
Delta
Sun 8/97:13 am
SFO
- GTF
2 stops9h 25m
Delta
Deal found 7/21![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/81:08 pm
GTF
- SFO
2 stops7h 35m
Delta
Wed 8/1211:38 am
SFO
- GTF
2 stops10h 00m
Delta
Deal found 7/18![Delta logo]()
$354
Best flights from Great Falls to San FranciscoDiscover carefully curated flight deals from Great Falls to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
Discover carefully curated flight deals from Great Falls to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/18. 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.
Fri 8/285:18 pm
GTF
- SFO
1 stop7h 22m
Alaska Airlines
Tue 9/19:03 am
SFO
- GTF
1 stop6h 35m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 7/19. 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.
Tue 8/186:18 pm
GTF
- SFO
1 stop4h 41m
Delta
Tue 8/255:08 pm
SFO
- GTF
1 stop4h 30m
Delta
Deal found 7/19![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:23 pm
GTF
- SFO
1 stop4h 44m
Delta
Fri 11/66:00 am
SFO
- GTF
1 stop5h 33m
Delta
Deal found 7/18![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 7/19. 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.
Sat 9/261:15 pm
GTF
- SFO
2 stops11h 36m
Delta
Wed 9/305:19 pm
SFO
- GTF
1 stop4h 18m
Delta
Deal found 7/19![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 7/22. 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.
Tue 10/136:18 pm
GTF
- SFO
1 stop6h 38m
Delta
Sat 10/179:46 am
SFO
- GTF
1 stop6h 56m
Delta
Deal found 7/22![Delta logo]()
$308
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 10/26:21 pm
GTF
- SFO
1 stop4h 54m
Delta
Sun 10/47:20 am
SFO
- GTF
2 stops9h 21m
Delta
Deal found 7/22![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 7/22. 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.
Mon 9/286:21 pm
GTF
- SFO
1 stop4h 54m
Delta
Sat 10/311:58 am
SFO
- GTF
2 stops9h 39m
Delta
Deal found 7/22![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 7/22. 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.
Tue 9/295:40 am
GTF
- SFO
2 stops6h 13m
Delta
Thu 10/17:20 am
SFO
- GTF
2 stops9h 21m
Delta
Deal found 7/22![Delta logo]()
$319
Last-minute flights from Great Falls to San FranciscoDiscover last-minute flight deals from Great Falls to San Francisco. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from Great Falls to San Francisco. Data last updated July 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/22. 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.
Wed 7/295:40 am
GTF
- SFO
1 stop4h 11m
Delta
Thu 8/65:08 pm
SFO
- GTF
1 stop4h 30m
Delta
Deal found 7/22![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 7/21. 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.
Wed 8/56:18 pm
GTF
- SFO
1 stop6h 39m
Delta
Sun 8/97:13 am
SFO
- GTF
2 stops9h 25m
Delta
Deal found 7/21![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/81:08 pm
GTF
- SFO
2 stops7h 35m
Delta
Wed 8/1211:38 am
SFO
- GTF
2 stops10h 00m
Delta
Deal found 7/18![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 7/19. 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.
Tue 8/181:08 pm
GTF
- SFO
2 stops7h 35m
Delta
Tue 8/255:08 pm
SFO
- GTF
1 stop4h 30m
Delta
Deal found 7/19![Delta logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:18 pm
GTF
- SFO
1 stop7h 22m
Alaska Airlines
Tue 9/19:03 am
SFO
- GTF
1 stop6h 35m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$298
One-way flights from Great Falls to San FranciscoSearch for one-way flight options from Great Falls to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
Search for one-way flight options from Great Falls to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
This Priceline deal was found by Cheapflights users on 7/22. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:18 pm
GTF
- SFO
1 stop6h 27m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$149
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:08 pm
GTF
- SFO
2 stops9h 11m
Delta
Deal found 7/18![Delta logo]()
$155
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 8/211:08 pm
GTF
- SFO
2 stops7h 22m
Delta
Deal found 7/22![Delta logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:10 pm
GTF
- SFO
1 stop20h 01m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$248
This United Airlines deal was found by Cheapflights users on 7/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:15 am
GTF
- SFO
1 stop7h 53m
United Airlines
Deal found 7/18![United Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 7/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:15 am
GTF
- SFO
1 stop6h 10m
United Airlines
Deal found 7/23![United Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:10 pm
GTF
- SFO
2 stops47h 04m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 7/20. 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.
Fri 8/76:18 pm
GTF
- SFO
1 stop6h 39m
Delta
Deal found 7/20![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:40 am
GTF
- SFO
2 stops6h 09m
Delta
Deal found 7/18![Delta logo]()
$358
Find flight deals from Great Falls to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to San Francisco (SFO). 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 July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $298 (Alaska Airlines) |
One-way from | $149 (Priceline) |
Popular in | July |
Cheapest in | September |
Average price | $916 |
Cheapflights Fare Finder
Customize your flight search to find flights from Great Falls to San Francisco 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 July 23, 2026.
Use the filters below to find and compare flights from Great Falls to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Fri 8/28
5:18 pm-11:40 pm
1 stop7h 22m
San Francisco
Tue 9/1
9:03 am-4:38 pm
1 stop6h 35m
$298
Quickest round-trip
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Tue 8/18
6:18 pm-9:59 pm
1 stop4h 41m
San Francisco
Tue 8/25
5:08 pm-10:38 pm
1 stop4h 30m
$298
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Mon 11/2
6:23 pm-10:07 pm
1 stop4h 44m
San Francisco
Fri 11/6
6:00 am-12:33 pm
1 stop5h 33m
$298
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Sat 9/26
1:15 pm-11:51 pm
2 stops11h 36m
San Francisco
Wed 9/30
5:19 pm-10:37 pm
1 stop4h 18m
$304
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Tue 10/13
6:18 pm-11:56 pm
1 stop6h 38m
San Francisco
Sat 10/17
9:46 am-5:42 pm
1 stop6h 56m
$308
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Fri 10/2
6:21 pm-10:15 pm
1 stop4h 54m
San Francisco
Sun 10/4
7:20 am-5:41 pm
2 stops9h 21m
$314
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Mon 9/28
6:21 pm-10:15 pm
1 stop4h 54m
San Francisco
Sat 10/3
11:58 am-10:37 pm
2 stops9h 39m
$314
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Tue 9/29
5:40 am-10:53 am
2 stops6h 13m
San Francisco
Thu 10/1
7:20 am-5:41 pm
2 stops9h 21m
$319
Cheapest one-way
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Fri 8/21
5:18 pm-10:45 pm
1 stop6h 27m
$149
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Fri 8/28
5:18 pm-11:40 pm
1 stop7h 22m
$149
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Great Falls to San Francisco
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 Francisco in July.
| 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 Great Falls-San Francisco 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 Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Great Falls-San Francisco 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 Francisco 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 Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Great Falls with our price prediction graph.
GTF-SFO
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 San Francisco
Get insights into the airlines that provide service to San Francisco. 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 Francisco. Reviews last updated July 23, 2026.
See what other customers who have flown with Delta from Great Falls to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
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 Francisco. 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 Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Fairfield
Roseville
Burlingame
Rancho Cordova
San Bruno
Cupertino
Emeryville
Newark
Watsonville
Hayward
Redwood City
San Carlos
San Ramon
Turlock
Vallejo
San Lorenzo
Davis
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Great Falls and San Francisco flights
Browse other Great Falls and San Francisco flight options. Last updated on July 23, 2026.
Other flights from Great Falls
Browse through other flights departing from Great Falls. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
Popular flight searches
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Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
Top airline flying from Great Falls to San Francisco
Discover the top airline that operate flights from Great Falls to San Francisco. 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 July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$348 | FlexibilityNo cancel fee | On-timeN/A |