$227+ Cheap flights from San Francisco to Helena (SFO - HLN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Nov 15 — Nov 221
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
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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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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 October 16, 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 October 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/99:40 am -
1 stop5h 32m
Tue 12/224:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/96:00 am -
1 stop9h 12m
Fri 12/254:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/99:40 am -
1 stop5h 32m
Sun 12/204:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/97:00 am -
1 stop8h 12m
Mon 12/214:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/99:40 am -
1 stop5h 32m
Sat 12/194:18 pm -
1 stop7h 35m
Deal found 10/12![Alaska Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 10/12. 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 12/166:00 am -
1 stop5h 30m
Tue 12/221:05 pm -
1 stop6h 19m
Deal found 10/12![Delta logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/155:50 pm -
1 stop21h 22m
Tue 12/224:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$494
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/97:40 am -
2 stops7h 32m
Wed 12/234:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$497
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/145:50 pm -
1 stop21h 22m
Fri 12/254:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$503
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/169:40 am -
1 stop5h 32m
Sun 12/204:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$505
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/97:40 am -
2 stops7h 32m
Thu 12/244:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$506
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 stop8h 12m
Wed 12/234:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$509
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 October 16, 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 October 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/169:40 am -
1 stop5h 32m
Sun 12/204:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 10/12. 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 11/245:50 am -
1 stop5h 37m
Fri 11/271:07 pm -
2 stops10h 17m
Deal found 10/12![Delta logo]()
$518
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 11/242:24 pm -
1 stop6h 07m
Fri 11/276:28 am -
1 stop6h 14m
Deal found 10/12![United Airlines logo]()
$826
This Delta deal was found by Cheapflights users on 10/12. 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 12/179:59 am -
1 stop11h 33m
Tue 12/221:05 pm -
1 stop6h 19m
Deal found 10/12![Delta logo]()
$522
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/179:20 am -
1 stop5h 21m
Wed 12/234:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/179:20 am -
1 stop5h 21m
Mon 12/214:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 10/14. 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 10/295:50 am -
1 stop5h 38m
Mon 11/21:08 pm -
2 stops8h 24m
Deal found 10/14![Delta logo]()
$760
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 12/189:20 am -
1 stop5h 21m
Fri 12/254:18 pm -
1 stop5h 15m
Deal found 10/12![Alaska Airlines logo]()
$732
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:43 am -
1 stop6h 06m
Tue 11/34:41 pm -
1 stop5h 06m
Deal found 10/15![Alaska Airlines logo]()
$765
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated October 16, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated October 16, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 10/272:24 pm -
1 stop6h 07m
Sat 10/312:23 pm -
1 stop5h 48m
Deal found 10/12![United Airlines logo]()
$765
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 10/277:43 am -
2 stops8h 06m
Sat 10/315:21 pm -
1 stop6h 42m
Deal found 10/12![Alaska Airlines logo]()
$859
This Priceline deal was found by Cheapflights users on 10/14. 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.
Thu 10/299:43 am -
1 stop6h 06m
Mon 11/24:41 pm -
1 stop5h 06m
Deal found 10/14![Alaska Airlines logo]()
$755
This Delta deal was found by Cheapflights users on 10/14. 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 10/295:50 am -
1 stop5h 38m
Mon 11/21:08 pm -
2 stops8h 24m
Deal found 10/14![Delta logo]()
$760
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:43 am -
1 stop6h 06m
Tue 11/34:41 pm -
2 stops17h 19m
Deal found 10/15![Alaska Airlines logo]()
$808
This Delta deal was found by Cheapflights users on 10/12. 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 11/245:50 am -
1 stop5h 37m
Fri 11/271:07 pm -
2 stops10h 17m
Deal found 10/12![Delta logo]()
$518
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 11/242:24 pm -
1 stop6h 07m
Fri 11/276:28 am -
1 stop6h 14m
Deal found 10/12![United Airlines logo]()
$826
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 October 16, 2026.
Search for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated October 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/11. 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 11/1112:13 pm -
1 stop26h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 10/11. 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 11/92:12 pm -
2 stops21h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Delta logo]()
$228
This Delta deal was found by Cheapflights users on 10/11. 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 11/105:19 pm -
1 stop4h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Delta logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 10/11. 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 11/128:33 am -
1 stop6h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 10/11. 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 12/106:00 am -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Delta logo]()
$263
This Delta deal was found by Cheapflights users on 10/11. 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 11/122:47 pm -
2 stops6h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Delta logo]()
$268
This Delta deal was found by Cheapflights users on 10/11. 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 11/85:50 am -
1 stop5h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Delta logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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 12/102:34 pm -
2 stops24h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Alaska Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 10/12. 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 12/107:10 pm -
2 stops17h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Sun 11/86:50 pm -
2 stops17h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![United Airlines logo]()
$384
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 October 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $353 (Alaska Airlines) |
One-way from | $227 (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 October 16, 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
Thu 12/10
7:00 am-4:12 pm
1 stop8h 12m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$227
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Fri 11/13
5:53 pm-12:27 pm
2 stops17h 34m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$228
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Mon 11/9
2:12 pm-12:27 pm
2 stops21h 15m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$228
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Tue 11/10
10:38 am-12:27 pm
2 stops24h 49m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$228
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Wed 11/11
5:53 pm-12:27 pm
2 stops17h 34m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$243
Quickest round-trip
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 12/10
6:00 am-12:30 pm
1 stop5h 30m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$263
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 12/10
7:10 pm-1:52 pm
2 stops17h 42m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$324
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sun 11/8
6:50 pm-1:40 pm
2 stops17h 50m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$384
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Fri 10/23
2:40 pm-10:24 pm
2 stops6h 44m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$498
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Wed 12/16
9:40 am-4:12 pm
1 stop5h 32m
Helena
Sun 12/20
4:18 pm-8:33 pm
1 stop5h 15m
$505
Showing 1-10 of 18 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 October.
| 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.
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.
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