$212+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Sep 20 — Sep 271
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 August 21, 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 August 21, 2026.
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.
Sat 11/148:33 am -
1 stop6h 31m
Wed 11/184:41 pm -
1 stop19h 34m
Deal found 8/17![Alaska Airlines logo]()
$363
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.
Mon 10/125:50 am -
1 stop5h 38m
Tue 10/131:08 pm -
2 stops8h 10m
Deal found 8/19![Delta logo]()
$462
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 10/296:07 am -
1 stop9h 42m
Sun 11/14:41 pm -
1 stop19h 34m
Deal found 8/17![Alaska Airlines logo]()
$473
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.
Thu 9/105:19 pm -
1 stop4h 05m
Wed 9/1612:57 pm -
1 stop4h 27m
Deal found 8/19![Delta logo]()
$501
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.
Thu 9/241:45 pm -
1 stop25h 56m
Thu 10/15:18 pm -
1 stop6h 27m
Deal found 8/20![Alaska Airlines logo]()
$533
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.
Sun 10/115:50 am -
1 stop5h 38m
Mon 10/121:08 pm -
2 stops10h 37m
Deal found 8/19![Delta logo]()
$555
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 August 21, 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 August 21, 2026.
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.
Sat 1/307:00 am -
1 stop8h 23m
Tue 2/25:00 pm -
1 stop23h 41m
Deal found 8/20![Alaska Airlines logo]()
$363
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.
Mon 10/125:50 am -
1 stop5h 38m
Tue 10/137:15 am -
1 stop6h 09m
Deal found 8/19![Delta logo]()
$483
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 11/148:33 am -
1 stop6h 31m
Wed 11/184:41 pm -
1 stop19h 34m
Deal found 8/16![Alaska Airlines logo]()
$363
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.
Thu 9/105:45 am -
1 stop5h 32m
Wed 9/1612:57 pm -
2 stops11h 54m
Deal found 8/19![Delta logo]()
$506
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.
Thu 9/241:45 pm -
1 stop25h 56m
Thu 10/15:18 pm -
1 stop6h 27m
Deal found 8/20![Alaska Airlines logo]()
$533
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.
Sun 10/115:50 am -
1 stop5h 38m
Mon 10/121:08 pm -
2 stops10h 37m
Deal found 8/19![Delta logo]()
$555
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated August 21, 2026 and is based on user searches.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:08 pm -
1 stop4h 22m
Wed 9/912:57 pm -
2 stops8h 10m
Deal found 8/18![Delta logo]()
$626
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:36 am -
1 stop4h 58m
Thu 9/105:18 pm -
1 stop7h 22m
Deal found 8/18![Alaska Airlines logo]()
$642
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.
Sat 9/55:06 pm -
1 stop4h 24m
Fri 9/117:15 am -
1 stop6h 02m
Deal found 8/21![Delta logo]()
$613
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:03 am -
1 stop6h 31m
Fri 9/115:18 pm -
1 stop5h 21m
Deal found 8/16![Alaska Airlines logo]()
$635
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.
Thu 9/105:19 pm -
1 stop4h 05m
Wed 9/1612:57 pm -
1 stop4h 27m
Deal found 8/19![Delta logo]()
$501
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.
Thu 9/241:45 pm -
1 stop25h 56m
Thu 10/15:18 pm -
1 stop6h 27m
Deal found 8/20![Alaska Airlines logo]()
$533
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 August 21, 2026.
Search for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:33 am -
1 stop6h 31m
Deal found 8/20![Alaska Airlines logo]()
$212
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.
Thu 12/108:15 am -
1 stop6h 16m
Deal found 8/20![Alaska Airlines logo]()
$222
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.
Tue 9/85:19 pm -
1 stop4h 05m
Deal found 8/19![Delta logo]()
$251
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 12/1012:05 pm -
2 stops9h 21m
Deal found 8/20![Delta logo]()
$256
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:47 pm -
2 stops24h 17m
Deal found 8/20![Alaska Airlines logo]()
$292
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.
Fri 10/169:03 am -
2 stops6h 46m
Deal found 8/17![Alaska Airlines logo]()
$298
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.
Thu 9/102:30 pm -
2 stops6h 54m
Deal found 8/19![Delta logo]()
$305
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:20 pm -
1 stop6h 10m
Deal found 8/17![United Airlines logo]()
$363
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 9/39:03 am -
1 stop6h 31m
Deal found 8/17![Alaska Airlines logo]()
$392
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.
Wed 9/27:08 am -
2 stops8h 26m
Deal found 8/17![Alaska Airlines logo]()
$457
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 August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Alaska Airlines) |
One-way from | $212 (Priceline) |
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 August 21, 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
Sat 1/30
7:00 am-4:23 pm
1 stop8h 23m
Helena
Tue 2/2
5:00 pm-3:41 pm
1 stop23h 41m
$363
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sat 11/14
8:33 am-4:04 pm
1 stop6h 31m
Helena
Wed 11/18
4:41 pm-11:15 am
1 stop19h 34m
$363
Quickest round-trip
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Mon 10/12
5:50 am-12:28 pm
1 stop5h 38m
Helena
Tue 10/13
7:15 am-12:24 pm
1 stop6h 09m
$483
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 9/10
5:45 am-12:17 pm
1 stop5h 32m
Helena
Wed 9/16
12:57 pm-11:51 pm
2 stops11h 54m
$506
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 9/24
1:45 pm-4:41 pm
1 stop25h 56m
Helena
Thu 10/1
5:18 pm-10:45 pm
1 stop6h 27m
$533
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sun 10/11
5:50 am-12:28 pm
1 stop5h 38m
Helena
Mon 10/12
1:08 pm-10:45 pm
2 stops10h 37m
$555
Cheapest one-way
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 12/10
8:15 am-3:31 pm
1 stop6h 16m
$222
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 11/5
5:50 am-12:28 pm
1 stop5h 38m
$251
Quickest one-way
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 9/10
5:19 pm-10:24 pm
1 stop4h 05m
$251
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Tue 9/8
5:19 pm-10:24 pm
1 stop4h 05m
$251
Showing 1-10 of 11 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 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 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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