$131+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Apr 9 — Apr 161
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 March 10, 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 March 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 4/1411:13 am
SFO
- HLN
1 stop5h 32m
Alaska Airlines
Wed 4/156:22 pm
HLN
- SFO
1 stop5h 05m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 4/285:31 pm
SFO
- HLN
1 stop23h 14m
Alaska Airlines
Sat 5/26:22 pm
HLN
- SFO
1 stop5h 06m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 4/249:00 am
SFO
- HLN
1 stop7h 45m
Alaska Airlines
Sun 4/266:22 pm
HLN
- SFO
1 stop6h 22m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:00 am
SFO
- HLN
1 stop5h 23m
Delta
Sat 8/225:45 am
HLN
- SFO
1 stop4h 24m
Delta
Deal found 3/7![Delta logo]()
$381
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
SFO
- HLN
1 stop5h 23m
Delta
Wed 8/265:45 am
HLN
- SFO
2 stops15h 34m
Delta
Deal found 3/7![Delta logo]()
$407
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 March 10, 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 March 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Tue 4/288:45 pm
SFO
- HLN
2 stops20h 00m
Alaska Airlines
Sat 5/26:22 pm
HLN
- SFO
1 stop5h 06m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$291
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 4/148:00 am
SFO
- HLN
2 stops8h 45m
Alaska Airlines
Wed 4/156:22 pm
HLN
- SFO
2 stops16h 55m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$396
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 4/248:00 am
SFO
- HLN
2 stops8h 45m
Alaska Airlines
Sun 4/266:22 pm
HLN
- SFO
1 stop6h 22m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 3/269:07 pm
SFO
- HLN
2 stops19h 38m
Alaska Airlines
Mon 3/306:22 pm
HLN
- SFO
2 stops17h 42m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 5/89:10 pm
SFO
- HLN
1 stop19h 35m
Alaska Airlines
Sun 5/106:22 pm
HLN
- SFO
1 stop17h 34m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$508
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 4/196:56 pm
SFO
- HLN
2 stops21h 49m
Alaska Airlines
Thu 4/236:22 pm
HLN
- SFO
1 stop6h 22m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$538
This Expedia deal was found by Cheapflights users on 3/5. 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.
Sat 4/410:16 am
SFO
- HLN
1 stop6h 29m
Alaska Airlines
Sun 4/126:22 pm
HLN
- SFO
1 stop15h 58m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$546
This Expedia deal was found by Cheapflights users on 3/6. 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.
Mon 3/236:30 am
SFO
- HLN
1 stop10h 15m
Alaska Airlines
Wed 3/256:22 pm
HLN
- SFO
2 stops16h 55m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$552
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated March 10, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/72:57 pm
SFO
- HLN
1 stop25h 48m
Alaska Airlines
Tue 4/146:22 pm
HLN
- SFO
1 stop5h 05m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 4/1411:13 am
SFO
- HLN
1 stop5h 32m
Alaska Airlines
Wed 4/156:22 pm
HLN
- SFO
1 stop5h 05m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 4/249:00 am
SFO
- HLN
1 stop7h 45m
Alaska Airlines
Sun 4/266:22 pm
HLN
- SFO
1 stop6h 22m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 4/285:31 pm
SFO
- HLN
1 stop23h 14m
Alaska Airlines
Sat 5/26:22 pm
HLN
- SFO
1 stop5h 06m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$262
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 March 10, 2026.
Search for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This Delta deal was found by Cheapflights users on 3/8. 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 4/155:40 am
SFO
- HLN
1 stop5h 44m
Delta
Deal found 3/8![Delta logo]()
$131
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 4/157:20 am
SFO
- HLN
2 stops9h 25m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$172
This Delta deal was found by Cheapflights users on 3/8. 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 5/235:40 am
SFO
- HLN
1 stop5h 43m
Delta
Deal found 3/8![Delta logo]()
$191
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 5/234:45 pm
SFO
- HLN
2 stops22h 21m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$223
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 8/2010:20 pm
SFO
- HLN
2 stops16h 11m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:00 am
SFO
- HLN
1 stop6h 38m
United Airlines
Deal found 3/9![United Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 3/9. 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 3/261:05 pm
SFO
- HLN
2 stops8h 25m
Delta
Deal found 3/9![Delta logo]()
$698
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Wed 4/1511:45 am
SFO
- HLN
3 stops53h 00m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$790
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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (Alaska Airlines) |
One-way from | $131 (Delta) |
Popular in | March |
Cheapest in | April |
Average price | $1,098 |
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 March 10, 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 4/28
8:45 pm-5:45 pm
2 stops20h 00m
Helena
Sat 5/2
6:22 pm-10:28 pm
1 stop5h 06m
$291
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 4/14
8:00 am-5:45 pm
2 stops8h 45m
Helena
Wed 4/15
6:22 pm-10:17 am
2 stops16h 55m
$396
Quickest round-trip
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Fri 4/24
8:00 am-5:45 pm
2 stops8h 45m
Helena
Sun 4/26
6:22 pm-11:44 pm
1 stop6h 22m
$412
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Thu 3/26
9:07 pm-5:45 pm
2 stops19h 38m
Helena
Mon 3/30
6:22 pm-11:04 am
2 stops17h 42m
$417
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Fri 5/8
9:10 pm-5:45 pm
1 stop19h 35m
Helena
Sun 5/10
6:22 pm-10:56 am
1 stop17h 34m
$508
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sun 4/19
6:56 pm-5:45 pm
2 stops21h 49m
Helena
Thu 4/23
6:22 pm-11:44 pm
1 stop6h 22m
$538
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sat 4/4
10:16 am-5:45 pm
1 stop6h 29m
Helena
Sun 4/12
6:22 pm-9:20 am
1 stop15h 58m
$546
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Mon 3/23
6:30 am-5:45 pm
1 stop10h 15m
Helena
Wed 3/25
6:22 pm-10:17 am
2 stops16h 55m
$552
Cheapest one-way
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Wed 4/15
7:20 am-5:45 pm
2 stops9h 25m
$172
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sat 5/23
5:40 am-12:23 pm
1 stop5h 43m
$191
Showing 1-10 of 14 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 March.
| 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.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Helena
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 March 10, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines and Delta 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.
Crew
8.5
Entertainment
7.0
Food
7.1
Comfort
7.8
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Food
7.1
Comfort
7.8
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Food
7.1
Comfort
7.8
Overall
8.0
Boarding
8.1
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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Alternative routes for San Francisco to Helena
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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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Find flights from San Francisco to Helena, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 March 10, 2026.
San Francisco and Helena flights
Browse other San Francisco and Helena flight options. Last updated on March 10, 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 March 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from San Francisco to Helena
Discover the top 2 airlines 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 2,558,603 searches. Data last updated March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$215 | Average$408 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$292 | Average$518 | FlexibilityNo cancel fee | On-time75% |