$194+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Jul 12 — Jul 191
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 June 12, 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 12, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 9/125:00 pm
SFO
- HLN
1 stop4h 34m
Delta
Wed 9/1612:57 pm
HLN
- SFO
2 stops11h 39m
Delta
Deal found 6/11![Delta logo]()
$375
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:03 am
SFO
- HLN
1 stop8h 31m
Alaska Airlines
Mon 8/315:11 pm
HLN
- SFO
1 stop5h 19m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 6/11. 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 9/152:30 pm
SFO
- HLN
2 stops6h 54m
Delta
Wed 9/1612:57 pm
HLN
- SFO
2 stops7h 43m
Delta
Deal found 6/11![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 6/11. 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 9/135:00 pm
SFO
- HLN
1 stop4h 34m
Delta
Tue 9/2212:57 pm
HLN
- SFO
2 stops11h 39m
Delta
Deal found 6/11![Delta logo]()
$402
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 9/125:00 pm
SFO
- HLN
1 stop4h 34m
Delta
Mon 9/2112:57 pm
HLN
- SFO
2 stops11h 39m
Delta
Deal found 6/11![Delta logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 9/129:03 am
SFO
- HLN
1 stop6h 38m
Alaska Airlines
Thu 9/175:18 pm
HLN
- SFO
1 stop5h 21m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 9/126:00 am
SFO
- HLN
1 stop5h 23m
Delta
Thu 9/1712:57 pm
HLN
- SFO
2 stops9h 32m
Delta
Deal found 6/11![Delta logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 9/153:41 pm
SFO
- HLN
2 stops24h 00m
Alaska Airlines
Sat 9/195:18 pm
HLN
- SFO
1 stop6h 32m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$421
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 12, 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 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 9/169:03 am
SFO
- HLN
1 stop6h 38m
Alaska Airlines
Sat 9/195:18 pm
HLN
- SFO
1 stop6h 32m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 6/11. 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 9/142:30 pm
SFO
- HLN
2 stops6h 54m
Delta
Tue 9/2212:57 pm
HLN
- SFO
2 stops11h 39m
Delta
Deal found 6/11![Delta logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 10/289:40 am
SFO
- HLN
1 stop5h 31m
Alaska Airlines
Sat 10/314:48 pm
HLN
- SFO
1 stop7h 56m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 6/11. 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.
Fri 9/185:50 am
SFO
- HLN
1 stop5h 27m
Delta
Sun 9/2012:57 pm
HLN
- SFO
2 stops9h 32m
Delta
Deal found 6/11![Delta logo]()
$446
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 9/159:03 am
SFO
- HLN
1 stop6h 38m
Alaska Airlines
Sun 9/205:18 pm
HLN
- SFO
1 stop7h 22m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 7/185:05 pm
SFO
- HLN
1 stop4h 34m
Delta
Tue 8/45:40 am
HLN
- SFO
1 stop4h 10m
Delta
Deal found 6/9![Delta logo]()
$463
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 9/139:03 am
SFO
- HLN
1 stop6h 38m
Alaska Airlines
Mon 9/215:18 pm
HLN
- SFO
1 stop7h 22m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$441
This Delta deal was found by Cheapflights users on 6/11. 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.
Wed 8/125:12 pm
SFO
- HLN
1 stop4h 18m
Delta
Fri 8/1412:55 pm
HLN
- SFO
1 stop4h 20m
Delta
Deal found 6/11![Delta logo]()
$463
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 7/215:07 pm
SFO
- HLN
1 stop4h 32m
Delta
Thu 8/612:55 pm
HLN
- SFO
1 stop4h 20m
Delta
Deal found 6/9![Delta logo]()
$463
This Delta deal was found by Cheapflights users on 6/7. 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.
Thu 7/165:07 pm
SFO
- HLN
1 stop4h 32m
Delta
Sun 7/195:40 am
HLN
- SFO
2 stops11h 04m
Delta
Deal found 6/7![Delta logo]()
$476
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 7/205:50 am
SFO
- HLN
1 stop5h 25m
Delta
Sat 7/257:00 am
HLN
- SFO
2 stops9h 44m
Delta
Deal found 6/8![Delta logo]()
$476
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated June 12, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/79:00 am
SFO
- HLN
1 stop6h 32m
Alaska Airlines
Tue 7/145:09 pm
HLN
- SFO
1 stop5h 45m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$487
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/87:03 am
SFO
- HLN
1 stop8h 29m
Alaska Airlines
Mon 7/135:09 pm
HLN
- SFO
1 stop17h 11m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$498
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 7/185:05 pm
SFO
- HLN
1 stop4h 34m
Delta
Thu 8/612:55 pm
HLN
- SFO
1 stop4h 20m
Delta
Deal found 6/9![Delta logo]()
$471
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 7/1811:45 am
SFO
- HLN
2 stops9h 54m
Delta
Wed 8/55:40 am
HLN
- SFO
2 stops8h 51m
Delta
Deal found 6/9![Delta logo]()
$473
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 7/182:30 pm
SFO
- HLN
2 stops7h 09m
Delta
Fri 8/712:55 pm
HLN
- SFO
2 stops7h 35m
Delta
Deal found 6/9![Delta logo]()
$481
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 7/215:07 pm
SFO
- HLN
1 stop4h 32m
Delta
Tue 8/45:40 am
HLN
- SFO
1 stop4h 10m
Delta
Deal found 6/9![Delta logo]()
$455
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 7/215:07 pm
SFO
- HLN
1 stop4h 32m
Delta
Fri 8/712:55 pm
HLN
- SFO
1 stop4h 20m
Delta
Deal found 6/9![Delta logo]()
$463
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:38 pm
SFO
- HLN
1 stop21h 54m
Alaska Airlines
Tue 8/45:09 pm
HLN
- SFO
2 stops19h 40m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 6/9. 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 7/2211:45 am
SFO
- HLN
2 stops9h 54m
Delta
Tue 8/45:40 am
HLN
- SFO
1 stop4h 10m
Delta
Deal found 6/9![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 6/9. 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 7/222:30 pm
SFO
- HLN
2 stops7h 09m
Delta
Wed 8/55:40 am
HLN
- SFO
2 stops8h 51m
Delta
Deal found 6/9![Delta logo]()
$466
This Delta deal was found by Cheapflights users on 6/9. 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 7/222:30 pm
SFO
- HLN
2 stops7h 09m
Delta
Sun 8/25:40 am
HLN
- SFO
1 stop4h 11m
Delta
Deal found 6/9![Delta logo]()
$468
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 12, 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 12, 2026.
This Delta deal was found by Cheapflights users on 6/8. 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 9/25:50 am
SFO
- HLN
1 stop5h 25m
Delta
Deal found 6/8![Delta logo]()
$194
This Delta deal was found by Cheapflights users on 6/8. 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.
Sun 9/65:16 pm
SFO
- HLN
1 stop4h 14m
Delta
Deal found 6/8![Delta logo]()
$221
This Delta deal was found by Cheapflights users on 6/9. 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.
Fri 8/285:12 pm
SFO
- HLN
1 stop4h 18m
Delta
Deal found 6/9![Delta logo]()
$226
This Delta deal was found by Cheapflights users on 6/9. 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 7/15:50 am
SFO
- HLN
1 stop5h 30m
Delta
Deal found 6/9![Delta logo]()
$236
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 9/32:36 pm
SFO
- HLN
2 stops6h 54m
Delta
Deal found 6/8![Delta logo]()
$241
This Delta deal was found by Cheapflights users on 6/9. 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 7/25:50 am
SFO
- HLN
1 stop5h 30m
Delta
Deal found 6/9![Delta logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/102:20 pm
SFO
- HLN
1 stop25h 12m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/176:03 am
SFO
- HLN
1 stop9h 29m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$322
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 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $375 (Delta) |
One-way from | $194 (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 12, 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
Wed 9/16
9:03 am-4:41 pm
1 stop6h 38m
Helena
Sat 9/19
5:18 pm-10:50 pm
1 stop6h 32m
$387
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Wed 10/28
9:40 am-4:11 pm
1 stop5h 31m
Helena
Sat 10/31
4:48 pm-11:44 pm
1 stop7h 56m
$387
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Mon 9/14
2:30 pm-10:24 pm
2 stops6h 54m
Helena
Tue 9/22
12:57 pm-11:36 pm
2 stops11h 39m
$408
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 9/15
9:03 am-4:41 pm
1 stop6h 38m
Helena
Sun 9/20
5:18 pm-11:40 pm
1 stop7h 22m
$414
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sun 9/13
9:03 am-4:41 pm
1 stop6h 38m
Helena
Mon 9/21
5:18 pm-11:40 pm
1 stop7h 22m
$441
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Fri 9/18
5:50 am-12:17 pm
1 stop5h 27m
Helena
Sun 9/20
12:57 pm-9:29 pm
2 stops9h 32m
$446
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sat 7/18
5:05 pm-10:39 pm
1 stop4h 34m
Helena
Tue 8/4
5:40 am-8:50 am
1 stop4h 10m
$463
Quickest round-trip
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Wed 8/12
5:12 pm-10:30 pm
1 stop4h 18m
Helena
Fri 8/14
12:55 pm-4:15 pm
1 stop4h 20m
$463
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 7/21
5:07 pm-10:39 pm
1 stop4h 32m
Helena
Thu 8/6
12:55 pm-4:15 pm
1 stop4h 20m
$463
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Thu 7/16
5:07 pm-10:39 pm
1 stop4h 32m
Helena
Sun 7/19
5:40 am-3:44 pm
2 stops11h 04m
$476
Showing 1-10 of 21 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 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.
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 June 12, 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.
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
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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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 June 12, 2026.
San Francisco and Helena flights
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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 2,558,603 searches. Data last updated June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$291 | Average$522 | FlexibilityNo cancel fee | On-time75% |