$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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SFO
Jun 19 — Jun 261
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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Best
Last-minute
One-way
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 May 20, 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 May 20, 2026.
This Delta deal was found by Cheapflights users on 5/18. 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 10/251:10 pm
GTF
- SFO
1 stop6h 26m
Delta
Wed 10/286:00 am
SFO
- GTF
1 stop5h 27m
Delta
Deal found 5/18![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 5/15. 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 10/251:10 pm
GTF
- SFO
1 stop6h 26m
Delta
Tue 10/271:00 pm
SFO
- GTF
2 stops8h 53m
Delta
Deal found 5/15![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 5/15. 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 10/21:10 pm
GTF
- SFO
2 stops11h 36m
Delta
Mon 10/56:05 am
SFO
- GTF
2 stops10h 34m
Delta
Deal found 5/15![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 5/15. 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 10/265:30 am
GTF
- SFO
1 stop4h 45m
Delta
Mon 10/265:00 pm
SFO
- GTF
1 stop4h 53m
Delta
Deal found 5/15![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 5/15. 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 10/285:30 am
GTF
- SFO
2 stops7h 24m
Delta
Wed 10/285:00 pm
SFO
- GTF
1 stop4h 53m
Delta
Deal found 5/15![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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.
Thu 8/205:18 pm
GTF
- SFO
1 stop7h 22m
Alaska Airlines
Sat 8/226:03 am
SFO
- GTF
1 stop9h 35m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 5/19. 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.
Mon 6/86:25 pm
GTF
- SFO
1 stop6h 33m
Delta
Sat 6/139:46 am
SFO
- GTF
1 stop6h 58m
Delta
Deal found 5/19![Delta logo]()
$408
This Delta deal was found by Cheapflights users on 5/17. 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.
Sun 8/165:40 am
GTF
- SFO
2 stops8h 51m
Delta
Wed 8/196:00 am
SFO
- GTF
2 stops10h 42m
Delta
Deal found 5/17![Delta logo]()
$412
This Delta deal was found by Cheapflights users on 5/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:19 pm
GTF
- SFO
1 stop7h 08m
Delta
Wed 5/204:55 pm
SFO
- GTF
1 stop4h 31m
Delta
Deal found 5/16![Delta logo]()
$418
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 May 20, 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 May 20, 2026.
This Delta deal was found by Cheapflights users on 5/15. 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 10/246:20 pm
GTF
- SFO
1 stop6h 37m
Delta
Mon 10/266:00 am
SFO
- GTF
1 stop5h 27m
Delta
Deal found 5/15![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 5/17. 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.
Sun 8/165:40 am
GTF
- SFO
1 stop4h 06m
Delta
Wed 8/199:41 am
SFO
- GTF
1 stop7h 01m
Delta
Deal found 5/17![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 5/15. 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 10/235:30 am
GTF
- SFO
1 stop4h 45m
Delta
Thu 10/295:00 pm
SFO
- GTF
1 stop4h 53m
Delta
Deal found 5/15![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 5/19. 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.
Sun 10/255:30 am
GTF
- SFO
1 stop4h 45m
Delta
Wed 10/2810:00 am
SFO
- GTF
1 stop6h 43m
Delta
Deal found 5/19![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 5/15. 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 10/246:20 pm
GTF
- SFO
1 stop6h 37m
Delta
Wed 10/286:00 am
SFO
- GTF
1 stop5h 27m
Delta
Deal found 5/15![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 5/15. 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 10/251:10 pm
GTF
- SFO
1 stop6h 26m
Delta
Sat 10/316:00 am
SFO
- GTF
1 stop5h 27m
Delta
Deal found 5/15![Delta logo]()
$298
Last-minute flights from Great Falls to San FranciscoDiscover last-minute flight deals from Great Falls to San Francisco. Data last updated May 20, 2026 and is based on user searches.
Discover last-minute flight deals from Great Falls to San Francisco. Data last updated May 20, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:19 pm
GTF
- SFO
1 stop7h 08m
Delta
Wed 5/204:55 pm
SFO
- GTF
1 stop4h 31m
Delta
Deal found 5/16![Delta logo]()
$418
This Delta deal was found by Cheapflights users on 5/19. 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.
Mon 6/86:25 pm
GTF
- SFO
1 stop6h 33m
Delta
Sat 6/139:46 am
SFO
- GTF
1 stop6h 58m
Delta
Deal found 5/19![Delta logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Mon 6/810:18 am
GTF
- SFO
1 stop25h 10m
Multiple Airlines
Sat 6/137:54 pm
SFO
- GTF
2 stops23h 21m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$474
This Alaska Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 6/165:09 pm
GTF
- SFO
1 stop5h 45m
Alaska Airlines
Mon 6/228:28 pm
SFO
- GTF
1 stop19h 01m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$522
This Delta deal was found by Cheapflights users on 5/18. 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.
Tue 6/166:25 pm
GTF
- SFO
1 stop6h 33m
Delta
Mon 6/2211:45 am
SFO
- GTF
2 stops9h 55m
Delta
Deal found 5/18![Delta logo]()
$587
This Expedia deal was found by Cheapflights users on 5/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:09 pm
GTF
- SFO
1 stop6h 46m
Alaska Airlines
Mon 6/228:28 pm
SFO
- GTF
1 stop19h 01m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$652
This Delta deal was found by Cheapflights users on 5/17. 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 6/191:20 pm
GTF
- SFO
2 stops9h 30m
Delta
Mon 6/222:30 pm
SFO
- GTF
2 stops7h 10m
Delta
Deal found 5/17![Delta logo]()
$684
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 6/2610:18 am
GTF
- SFO
2 stops33h 04m
Multiple Airlines
Sun 7/510:56 pm
SFO
- GTF
1 stop9h 33m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$433
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 May 20, 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 May 20, 2026.
This Delta deal was found by Cheapflights users on 5/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:40 am
GTF
- SFO
1 stop4h 11m
Delta
Deal found 5/16![Delta logo]()
$149
This Delta deal was found by Cheapflights users on 5/18. 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.
Tue 9/86:20 pm
GTF
- SFO
1 stop5h 32m
Delta
Deal found 5/18![Delta logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:09 pm
GTF
- SFO
3 stops48h 31m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$514
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 May 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $298 (Delta) |
One-way from | $149 (Delta) |
Popular in | August |
Cheapest in | September |
Average price | $393 |
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 May 20, 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
Sat 10/24
6:20 pm-11:57 pm
1 stop6h 37m
San Francisco
Mon 10/26
6:00 am-12:27 pm
1 stop5h 27m
$298
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Sun 8/16
5:40 am-8:46 am
1 stop4h 06m
San Francisco
Wed 8/19
9:41 am-5:42 pm
1 stop7h 01m
$298
Quickest round-trip
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Fri 10/23
5:30 am-9:15 am
1 stop4h 45m
San Francisco
Thu 10/29
5:00 pm-10:53 pm
1 stop4h 53m
$298
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Sun 10/25
5:30 am-9:15 am
1 stop4h 45m
San Francisco
Wed 10/28
10:00 am-5:43 pm
1 stop6h 43m
$298
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Sat 10/24
6:20 pm-11:57 pm
1 stop6h 37m
San Francisco
Wed 10/28
6:00 am-12:27 pm
1 stop5h 27m
$298
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Sun 10/25
1:10 pm-6:36 pm
1 stop6h 26m
San Francisco
Sat 10/31
6:00 am-12:27 pm
1 stop5h 27m
$298
Cheapest one-way
Quickest one-way
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Sat 6/13
5:40 am-8:51 am
1 stop4h 11m
$149
Great FallsSan Francisco
GTF - SFO
GTFSFO
Great Falls
Tue 9/8
6:20 pm-10:52 pm
1 stop5h 32m
$189
Sorted 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 May.
| 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 May 20, 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.
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.9
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 Cruz
Santa Clara
Fairfield
Rancho Cordova
San Bruno
Watsonville
San Ramon
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
Vallejo
San Lorenzo
Davis
Emeryville
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Great Falls and San Francisco flights
Browse other Great Falls and San Francisco flight options. Last updated on May 20, 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 May 20, 2026.
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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 May 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$318 | FlexibilityNo cancel fee | On-timeN/A |