$202+ Cheap flights from San Francisco to Helena (SFO - HLN)
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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Helena 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 Francisco to Helena
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Best
Last-minute
One-way
Cheapest flights from San Francisco to HelenaExplore the most affordable flight options available from San Francisco to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
Explore the most affordable flight options available from San Francisco to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 10/281:51 pm -
1 stop25h 58m
Wed 11/44:41 pm -
1 stop18h 00m
Deal found 8/29![Alaska Airlines logo]()
$393
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 9/304:51 pm -
1 stop22h 50m
Wed 10/75:26 pm -
1 stop16h 23m
Deal found 9/1![Alaska Airlines logo]()
$453
This Delta deal was found by Cheapflights users on 9/1. 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 9/305:45 am -
1 stop5h 32m
Wed 10/71:08 pm -
2 stops11h 48m
Deal found 9/1![Delta logo]()
$457
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 11/224:23 pm -
2 stops23h 03m
Fri 11/275:03 pm -
1 stop5h 40m
Deal found 8/29![Alaska Airlines logo]()
$570
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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 9/277:00 am -
1 stop8h 41m
Sun 10/45:26 pm -
1 stop25h 35m
Deal found 8/28![Alaska Airlines logo]()
$623
This Travelocity deal was found by Cheapflights users on 8/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/228:33 pm -
1 stop18h 53m
Sat 11/285:03 pm -
1 stop6h 43m
Deal found 8/30![Alaska Airlines logo]()
$715
Best flights from San Francisco to HelenaDiscover carefully curated flight deals from San Francisco to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from San Francisco to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 10/281:51 pm -
1 stop25h 58m
Wed 11/44:41 pm -
1 stop18h 00m
Deal found 8/29![Alaska Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 9/1. 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 9/305:45 am -
1 stop5h 32m
Wed 10/71:08 pm -
2 stops11h 48m
Deal found 9/1![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/112:20 pm -
1 stop6h 10m
Sat 9/196:15 am -
1 stop6h 08m
Deal found 8/31![United Airlines logo]()
$835
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 9/304:51 pm -
1 stop22h 50m
Wed 10/75:26 pm -
1 stop16h 23m
Deal found 9/1![Alaska Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 11/221:00 pm -
1 stop26h 26m
Fri 11/275:03 pm -
1 stop5h 40m
Deal found 8/29![Alaska Airlines logo]()
$595
This United Airlines deal was found by Cheapflights users on 8/30. 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 9/104:40 pm -
2 stops27h 50m
Mon 9/142:26 pm -
2 stops26h 03m
Deal found 8/30![United Airlines logo]()
$876
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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 9/278:10 am -
2 stops7h 31m
Sun 10/45:26 pm -
2 stops16h 57m
Deal found 8/28![Alaska Airlines logo]()
$732
This Delta deal was found by Cheapflights users on 9/2. 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 9/105:45 am -
1 stop5h 32m
Mon 9/1412:57 pm -
2 stops9h 37m
Deal found 9/2![Delta logo]()
$950
This Delta deal was found by Cheapflights users on 9/2. 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 9/112:30 pm -
2 stops6h 54m
Mon 9/1412:57 pm -
2 stops7h 39m
Deal found 9/2![Delta logo]()
$955
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated September 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/30. 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 9/104:40 pm -
2 stops27h 50m
Mon 9/142:26 pm -
1 stop28h 08m
Deal found 8/30![United Airlines logo]()
$870
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/112:20 pm -
1 stop6h 10m
Sat 9/196:15 am -
1 stop6h 08m
Deal found 8/31![United Airlines logo]()
$835
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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 9/258:53 pm -
1 stop18h 48m
Mon 9/285:18 pm -
1 stop7h 22m
Deal found 9/2![Alaska Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 9/1. 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 9/305:45 am -
1 stop5h 32m
Wed 10/71:08 pm -
2 stops11h 48m
Deal found 9/1![Delta logo]()
$457
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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 9/309:03 am -
1 stop6h 38m
Wed 10/75:26 pm -
1 stop16h 23m
Deal found 9/2![Alaska Airlines logo]()
$470
This deal was found by Cheapflights users on 9/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:43 am -
1 stop6h 06m
Tue 10/135:26 pm -
1 stop5h 23m
Deal found 9/2![Alaska Airlines logo]()
$608
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 10/281:51 pm -
1 stop25h 58m
Wed 11/44:41 pm -
1 stop18h 00m
Deal found 8/29![Alaska Airlines logo]()
$393
One-way flights from San Francisco to HelenaSearch for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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 12/107:00 am -
1 stop7h 31m
Deal found 8/30![Alaska Airlines logo]()
$202
This Delta deal was found by Cheapflights users on 8/29. 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 11/215:50 am -
1 stop5h 37m
Deal found 8/29![Delta logo]()
$251
This Delta deal was found by Cheapflights users on 9/1. 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 12/1011:49 am -
2 stops9h 43m
Deal found 9/1![Delta logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 11/212:53 pm -
2 stops24h 33m
Deal found 8/29![Alaska Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 8/31. 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 9/105:45 am -
1 stop5h 32m
Deal found 8/31![Delta logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 11/2111:59 pm -
3 stops39h 27m
Deal found 8/29![Multiple Airlines logo]()
$850
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/101:00 pm -
3 stops26h 41m
Deal found 8/31![Multiple Airlines logo]()
$960
Find flight deals from San Francisco to Helena
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Helena (HLN). 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 September 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (Alaska Airlines) |
One-way from | $202 (Alaska Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Helena 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 September 2, 2026.
Use the filters below to find and compare flights from San Francisco to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Wed 10/28
1:51 pm-4:49 pm
1 stop25h 58m
Helena
Wed 11/4
4:41 pm-9:41 am
1 stop18h 00m
$393
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Wed 9/30
4:51 pm-4:41 pm
1 stop22h 50m
Helena
Wed 10/7
5:26 pm-8:49 am
1 stop16h 23m
$453
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Wed 9/30
5:45 am-12:17 pm
1 stop5h 32m
Helena
Wed 10/7
1:08 pm-11:56 pm
2 stops11h 48m
$457
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sun 11/22
1:00 pm-4:26 pm
1 stop26h 26m
Helena
Fri 11/27
5:03 pm-9:43 pm
1 stop5h 40m
$595
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sun 9/27
8:10 am-4:41 pm
2 stops7h 31m
Helena
Sun 10/4
5:26 pm-9:23 am
2 stops16h 57m
$732
Quickest round-trip
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Fri 9/11
2:20 pm-9:30 pm
1 stop6h 10m
Helena
Sat 9/19
6:15 am-11:23 am
1 stop6h 08m
$835
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 9/10
4:40 pm-9:30 pm
2 stops27h 50m
Helena
Mon 9/14
2:26 pm-3:29 pm
2 stops26h 03m
$876
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 9/10
5:45 am-12:17 pm
1 stop5h 32m
Helena
Mon 9/14
12:57 pm-9:34 pm
2 stops9h 37m
$950
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Fri 9/11
2:30 pm-10:24 pm
2 stops6h 54m
Helena
Mon 9/14
12:57 pm-7:36 pm
2 stops7h 39m
$955
Cheapest one-way
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 12/10
7:00 am-3:31 pm
1 stop7h 31m
$202
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Helena
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 Francisco to Helena in September.
| 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 Francisco-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Helena flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Helena 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 Francisco-Helena 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 Francisco to Helena
Have a flexible travel schedule? Discover the best time to fly to Helena from San Francisco with our price prediction graph.
SFO-HLN
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.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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