$181+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Jul 26 — Aug 21
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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Best
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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 June 26, 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 June 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/25. 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 10/278:43 pm
SFO
- HLN
1 stop18h 28m
Alaska Airlines
Sat 10/314:48 pm
HLN
- SFO
1 stop7h 56m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$323
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:22 pm
SFO
- HLN
1 stop20h 12m
Alaska Airlines
Mon 8/315:11 pm
HLN
- SFO
1 stop23h 38m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$333
This Priceline deal was found by Cheapflights users on 6/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 am
SFO
- HLN
1 stop8h 41m
Alaska Airlines
Wed 9/235:18 pm
HLN
- SFO
1 stop5h 21m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:47 am
SFO
- HLN
2 stops7h 17m
Alaska Airlines
Sat 11/144:41 pm
HLN
- SFO
1 stop4h 49m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 6/21. 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.
Tue 9/82:30 pm
SFO
- HLN
2 stops6h 54m
Delta
Wed 9/237:15 am
HLN
- SFO
2 stops7h 10m
Delta
Deal found 6/21![Delta logo]()
$391
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:54 am
SFO
- HLN
2 stops9h 36m
Delta
Mon 8/3112:55 pm
HLN
- SFO
2 stops11h 55m
Delta
Deal found 6/23![Delta logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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 9/126:00 am
SFO
- HLN
1 stop9h 41m
Alaska Airlines
Mon 9/145:18 pm
HLN
- SFO
1 stop25h 42m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am
SFO
- HLN
1 stop9h 11m
Alaska Airlines
Sun 11/14:41 pm
HLN
- SFO
2 stops25h 40m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$429
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 June 26, 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 June 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/25. 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 10/278:43 pm
SFO
- HLN
1 stop18h 28m
Alaska Airlines
Sat 10/314:48 pm
HLN
- SFO
1 stop7h 56m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 6/21. 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.
Tue 9/85:19 pm
SFO
- HLN
1 stop4h 05m
Delta
Wed 9/237:15 am
HLN
- SFO
2 stops7h 10m
Delta
Deal found 6/21![Delta logo]()
$386
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:22 pm
SFO
- HLN
1 stop20h 12m
Alaska Airlines
Mon 8/315:11 pm
HLN
- SFO
1 stop23h 38m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$333
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:12 pm
SFO
- HLN
1 stop26h 52m
Alaska Airlines
Sat 11/144:41 pm
HLN
- SFO
1 stop6h 49m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$333
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated June 26, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated June 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/310:35 pm
SFO
- HLN
2 stops13h 58m
United Airlines
Wed 7/86:15 am
HLN
- SFO
1 stop6h 10m
United Airlines
Deal found 6/24![United Airlines logo]()
$761
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:28 pm
SFO
- HLN
1 stop19h 04m
Alaska Airlines
Sat 7/115:09 pm
HLN
- SFO
1 stop17h 11m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$703
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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 7/810:18 am
SFO
- HLN
1 stop5h 14m
Alaska Airlines
Thu 7/95:09 pm
HLN
- SFO
1 stop6h 46m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$715
This Delta deal was found by Cheapflights users on 6/24. 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 7/85:07 pm
SFO
- HLN
1 stop4h 32m
Delta
Mon 7/1312:55 pm
HLN
- SFO
2 stops9h 54m
Delta
Deal found 6/24![Delta logo]()
$720
This Delta deal was found by Cheapflights users on 6/24. 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 7/911:45 am
SFO
- HLN
2 stops9h 54m
Delta
Mon 7/1312:55 pm
HLN
- SFO
2 stops9h 54m
Delta
Deal found 6/24![Delta logo]()
$726
This Delta deal was found by Cheapflights users on 6/22. 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.
Sun 7/195:50 am
SFO
- HLN
1 stop5h 25m
Delta
Wed 7/225:40 am
HLN
- SFO
1 stop4h 11m
Delta
Deal found 6/22![Delta logo]()
$463
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/245:07 pm
SFO
- HLN
1 stop4h 32m
Delta
Sun 7/265:40 am
HLN
- SFO
1 stop4h 11m
Delta
Deal found 6/23![Delta logo]()
$480
This Delta deal was found by Cheapflights users on 6/22. 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 7/315:07 pm
SFO
- HLN
1 stop4h 32m
Delta
Sat 8/812:55 pm
HLN
- SFO
2 stops10h 20m
Delta
Deal found 6/22![Delta logo]()
$476
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 June 26, 2026.
Search for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
This Delta deal was found by Cheapflights users on 6/26. 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 8/255:08 pm
SFO
- HLN
1 stop4h 22m
Delta
Deal found 6/26![Delta logo]()
$181
This Delta deal was found by Cheapflights users on 6/21. 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 8/55:50 am
SFO
- HLN
1 stop5h 25m
Delta
Deal found 6/21![Delta logo]()
$228
This Delta deal was found by Cheapflights users on 6/25. 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
SFO
- HLN
1 stop5h 24m
Delta
Deal found 6/25![Delta logo]()
$236
This Delta deal was found by Cheapflights users on 6/21. 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.
Thu 8/62:36 pm
SFO
- HLN
2 stops6h 54m
Delta
Deal found 6/21![Delta logo]()
$241
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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.
Mon 8/310:08 pm
SFO
- HLN
2 stops17h 24m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 6/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:15 am
SFO
- HLN
1 stop6h 18m
United Airlines
Deal found 6/21![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 6/21. 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 7/811:45 am
SFO
- HLN
2 stops9h 54m
Delta
Deal found 6/21![Delta logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 8/168:23 pm
SFO
- HLN
3 stops43h 09m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/108:21 am
SFO
- HLN
3 stops11h 38m
United Airlines
Deal found 6/22![United Airlines logo]()
$578
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 June 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $323 (Alaska Airlines) |
One-way from | $181 (Delta) |
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 2,558,603 searches. Data last updated June 26, 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 - HLN
SFOHLN
San Francisco
Tue 10/27
8:43 pm-4:11 pm
1 stop18h 28m
Helena
Sat 10/31
4:48 pm-11:44 pm
1 stop7h 56m
$323
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 8/25
7:22 pm-4:34 pm
1 stop20h 12m
Helena
Mon 8/31
5:11 pm-3:49 pm
1 stop23h 38m
$333
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Wed 11/11
12:12 pm-4:04 pm
1 stop26h 52m
Helena
Sat 11/14
4:41 pm-10:30 pm
1 stop6h 49m
$333
Quickest round-trip
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 9/8
5:19 pm-10:24 pm
1 stop4h 05m
Helena
Wed 9/23
7:15 am-1:25 pm
2 stops7h 10m
$386
Cheapest one-way
Quickest one-way
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 8/25
5:08 pm-10:30 pm
1 stop4h 22m
$181
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Wed 8/5
5:50 am-12:15 pm
1 stop5h 25m
$228
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Thu 8/6
5:50 am-12:15 pm
1 stop5h 25m
$236
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Thu 12/10
6:00 am-12:24 pm
1 stop5h 24m
$236
Sorted 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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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