$202+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Dec 13 — Dec 201
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
Cheapest
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 November 13, 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 November 13, 2026.
This Booking.com deal was found by Cheapflights users on 11/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/99:40 am -
1 stop5h 32m
Wed 12/164:49 pm -
1 stop22h 16m
Deal found 11/9![Alaska Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 11/9. 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 12/95:15 pm -
1 stop4h 17m
Wed 12/161:10 pm -
2 stops8h 08m
Deal found 11/9![Delta logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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 12/56:00 am -
1 stop9h 12m
Wed 12/94:49 pm -
1 stop17h 49m
Deal found 11/10![Alaska Airlines logo]()
$498
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 12/512:05 pm -
2 stops24h 47m
Wed 12/92:35 pm -
2 stops17h 55m
Deal found 11/10![United Airlines logo]()
$651
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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 11/2611:50 am -
1 stop27h 26m
Mon 11/304:53 pm -
2 stops17h 07m
Deal found 11/11![Alaska Airlines logo]()
$889
This Delta deal was found by Cheapflights users on 11/10. 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 11/295:50 am -
1 stop5h 37m
Mon 11/307:00 am -
2 stops9h 35m
Deal found 11/10![Delta logo]()
$1,184
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 November 13, 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 November 13, 2026.
This Booking.com deal was found by Cheapflights users on 11/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/99:40 am -
1 stop5h 32m
Wed 12/164:49 pm -
1 stop22h 16m
Deal found 11/9![Alaska Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 11/9. 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 12/95:15 pm -
1 stop4h 17m
Wed 12/161:10 pm -
2 stops8h 08m
Deal found 11/9![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 1/234:55 pm -
2 stops19h 45m
Tue 1/266:15 am -
2 stops28h 01m
Deal found 11/11![United Airlines logo]()
$636
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 1/237:00 am -
1 stop8h 31m
Tue 1/265:08 pm -
1 stop21h 29m
Deal found 11/11![Alaska Airlines logo]()
$395
This Alaska Airlines deal was found by Cheapflights users on 11/7. 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 12/59:45 am -
1 stop5h 27m
Wed 12/94:49 pm -
1 stop5h 59m
Deal found 11/7![Alaska Airlines logo]()
$498
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 12/512:05 pm -
2 stops24h 47m
Wed 12/92:35 pm -
2 stops17h 55m
Deal found 11/10![United Airlines logo]()
$651
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated November 13, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated November 13, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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 11/2611:50 am -
1 stop27h 26m
Mon 11/304:53 pm -
2 stops17h 07m
Deal found 11/11![Alaska Airlines logo]()
$889
This Delta deal was found by Cheapflights users on 11/10. 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 11/295:50 am -
1 stop5h 37m
Mon 11/307:00 am -
2 stops9h 35m
Deal found 11/10![Delta logo]()
$1,184
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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 11/296:00 am -
1 stop9h 16m
Mon 11/304:53 pm -
1 stop22h 19m
Deal found 11/10![Alaska Airlines logo]()
$1,625
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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 12/56:00 am -
1 stop9h 12m
Wed 12/94:49 pm -
1 stop17h 49m
Deal found 11/10![Alaska Airlines logo]()
$498
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 12/512:05 pm -
2 stops24h 47m
Wed 12/92:35 pm -
2 stops17h 55m
Deal found 11/10![United Airlines logo]()
$651
This Booking.com deal was found by Cheapflights users on 11/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/99:40 am -
1 stop5h 32m
Wed 12/164:49 pm -
1 stop22h 16m
Deal found 11/9![Alaska Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 11/9. 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 12/95:15 pm -
1 stop4h 17m
Wed 12/161:10 pm -
2 stops8h 08m
Deal found 11/9![Delta logo]()
$389
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 November 13, 2026.
Search for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated November 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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 12/109:40 am -
1 stop5h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Alaska Airlines logo]()
$202
This Delta deal was found by Cheapflights users on 11/9. 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 12/1011:50 am -
2 stops9h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Delta logo]()
$283
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 November 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $365 (Booking.com) |
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 November 13, 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
Quickest round-trip
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 12/10
9:40 am-4:12 pm
1 stop5h 32m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$202
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Thu 12/10
11:50 am-10:32 pm
2 stops9h 42m
Helena
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$283
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Wed 12/9
9:40 am-4:12 pm
1 stop5h 32m
Helena
Wed 12/16
4:49 pm-2:05 pm
1 stop22h 16m
$365
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Wed 12/9
5:15 pm-10:32 pm
1 stop4h 17m
Helena
Wed 12/16
1:10 pm-8:18 pm
2 stops8h 08m
$389
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sat 1/23
7:00 am-4:31 pm
1 stop8h 31m
Helena
Tue 1/26
5:08 pm-1:37 pm
1 stop21h 29m
$395
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sat 12/5
9:45 am-4:12 pm
1 stop5h 27m
Helena
Wed 12/9
4:49 pm-9:48 pm
1 stop5h 59m
$498
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sat 1/23
4:55 pm-1:40 pm
2 stops19h 45m
Helena
Tue 1/26
6:15 am-9:16 am
2 stops28h 01m
$636
San FranciscoHelena
SFO San Francisco - HLN Helena
SFOHLN
San Francisco
Sat 12/5
12:05 pm-1:52 pm
2 stops24h 47m
Helena
Wed 12/9
2:35 pm-7:30 am
2 stops17h 55m
$651
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 November.
| 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.
Reviews of airlines servicing Helena
Get insights into the airlines that provide service to Helena. 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 Helena. Reviews last updated November 13, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines from San Francisco to Helena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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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Complete your trip
Complete your trip to Helena by adding a car rental and/or hotel reservation to your travel itinerary.
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Other flights to Helena
Explore flights to Helena departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 13, 2026.
San Francisco and Helena flights
Browse other San Francisco and Helena flight options. Last updated on November 13, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on November 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from San Francisco to Helena
Discover the top airline that operate flights from San Francisco to Helena. 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 7,457,451 searches. Data last updated November 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$291 | Average$484 | FlexibilityNo cancel fee | On-time75% |