$216+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Jun 27 — Jul 41
Round-trip
1 adult, Economy
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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 May 28, 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 May 28, 2026.
This Delta deal was found by Cheapflights users on 5/26. 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.
Sat 9/56:00 am
SFO
- HLN
1 stop5h 15m
Delta
Sat 9/1212:50 pm
HLN
- SFO
1 stop4h 33m
Delta
Deal found 5/26![Delta logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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 8/1110:18 am
SFO
- HLN
1 stop5h 14m
Alaska Airlines
Wed 8/195:11 pm
HLN
- SFO
1 stop6h 39m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 5/23. 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 8/116:00 am
SFO
- HLN
1 stop5h 15m
Delta
Wed 8/1912:55 pm
HLN
- SFO
2 stops11h 49m
Delta
Deal found 5/23![Delta logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 5/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:22 pm
SFO
- HLN
1 stop20h 12m
Alaska Airlines
Fri 9/115:18 pm
HLN
- SFO
1 stop7h 22m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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.
Mon 8/106:03 am
SFO
- HLN
1 stop9h 29m
Alaska Airlines
Wed 8/195:11 pm
HLN
- SFO
1 stop5h 19m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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 8/1110:18 am
SFO
- HLN
1 stop5h 14m
Alaska Airlines
Thu 8/205:32 pm
HLN
- SFO
1 stop6h 08m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 5/23. 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 8/1111:54 am
SFO
- HLN
2 stops9h 36m
Delta
Mon 8/175:40 am
HLN
- SFO
1 stop4h 10m
Delta
Deal found 5/23![Delta logo]()
$436
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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 10/139:23 pm
SFO
- HLN
2 stops17h 48m
Alaska Airlines
Thu 10/154:48 pm
HLN
- SFO
1 stop5h 41m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 5/23. 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 8/112:40 pm
SFO
- HLN
2 stops6h 50m
Delta
Sat 8/1512:55 pm
HLN
- SFO
2 stops7h 48m
Delta
Deal found 5/23![Delta logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 5/25. 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 8/48:28 pm
SFO
- HLN
1 stop19h 04m
Alaska Airlines
Tue 8/115:09 pm
HLN
- SFO
2 stops17h 36m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$448
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 May 28, 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 May 28, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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.
Sat 8/159:00 am
SFO
- HLN
1 stop6h 32m
Alaska Airlines
Wed 8/195:11 pm
HLN
- SFO
1 stop5h 19m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 5/23. 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 8/145:10 pm
SFO
- HLN
1 stop4h 20m
Delta
Wed 8/1912:55 pm
HLN
- SFO
2 stops10h 04m
Delta
Deal found 5/23![Delta logo]()
$409
This Travelocity deal was found by Cheapflights users on 5/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am
SFO
- HLN
1 stop9h 11m
Alaska Airlines
Thu 10/294:48 pm
HLN
- SFO
1 stop5h 41m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 5/23. 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.
Sun 8/162:40 pm
SFO
- HLN
2 stops6h 50m
Delta
Wed 8/195:40 am
HLN
- SFO
1 stop4h 10m
Delta
Deal found 5/23![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 5/26. 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.
Sun 9/62:40 pm
SFO
- HLN
2 stops6h 50m
Delta
Sat 9/1212:50 pm
HLN
- SFO
2 stops8h 29m
Delta
Deal found 5/26![Delta logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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 8/1110:18 am
SFO
- HLN
1 stop5h 14m
Alaska Airlines
Sat 8/155:09 pm
HLN
- SFO
1 stop6h 18m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 5/26. 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 10/271:00 pm
SFO
- HLN
2 stops8h 41m
Delta
Thu 10/295:45 am
HLN
- SFO
2 stops7h 09m
Delta
Deal found 5/26![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 5/26. 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.
Fri 9/42:40 pm
SFO
- HLN
2 stops6h 50m
Delta
Sat 9/1212:50 pm
HLN
- SFO
2 stops8h 29m
Delta
Deal found 5/26![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 5/27. 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 7/315:50 am
SFO
- HLN
1 stop5h 25m
Delta
Sun 8/25:40 am
HLN
- SFO
1 stop4h 11m
Delta
Deal found 5/27![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 5/26. 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.
Sat 7/185:05 pm
SFO
- HLN
1 stop4h 34m
Delta
Sat 7/2512:55 pm
HLN
- SFO
1 stop4h 07m
Delta
Deal found 5/26![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 5/25. 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.
Sat 7/185:05 pm
SFO
- HLN
1 stop4h 34m
Delta
Fri 7/245:40 am
HLN
- SFO
1 stop4h 11m
Delta
Deal found 5/25![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 5/25. 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.
Sun 6/215:50 am
SFO
- HLN
1 stop5h 30m
Delta
Fri 6/265:35 am
HLN
- SFO
1 stop4h 21m
Delta
Deal found 5/25![Delta logo]()
$431
Last-minute flights from San Francisco to HelenaDiscover last-minute flight deals from San Francisco to Helena. Data last updated May 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helena. Data last updated May 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/23. 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.
Sat 6/65:40 am
SFO
- HLN
1 stop5h 43m
Delta
Wed 6/101:00 pm
HLN
- SFO
2 stops11h 25m
Delta
Deal found 5/23![Delta logo]()
$612
This Delta deal was found by Cheapflights users on 5/23. 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.
Sat 6/65:40 am
SFO
- HLN
1 stop5h 43m
Delta
Tue 6/95:35 am
HLN
- SFO
1 stop7h 33m
Delta
Deal found 5/23![Delta logo]()
$619
This Delta deal was found by Cheapflights users on 5/23. 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.
Sat 6/65:40 am
SFO
- HLN
1 stop5h 43m
Delta
Fri 6/121:00 pm
HLN
- SFO
2 stops11h 25m
Delta
Deal found 5/23![Delta logo]()
$624
This Delta deal was found by Cheapflights users on 5/23. 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.
Sat 6/65:40 am
SFO
- HLN
1 stop5h 43m
Delta
Mon 6/81:00 pm
HLN
- SFO
1 stop4h 25m
Delta
Deal found 5/23![Delta logo]()
$649
This Delta deal was found by Cheapflights users on 5/23. 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 6/92:30 pm
SFO
- HLN
2 stops7h 01m
Delta
Wed 6/101:00 pm
HLN
- SFO
2 stops11h 25m
Delta
Deal found 5/23![Delta logo]()
$618
This Delta deal was found by Cheapflights users on 5/23. 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 6/911:45 am
SFO
- HLN
2 stops9h 46m
Delta
Fri 6/121:00 pm
HLN
- SFO
2 stops11h 25m
Delta
Deal found 5/23![Delta logo]()
$630
This Expedia deal was found by Cheapflights users on 5/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:03 am
SFO
- HLN
1 stop9h 29m
Alaska Airlines
Mon 6/155:09 pm
HLN
- SFO
2 stops19h 18m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$597
This Delta deal was found by Cheapflights users on 5/24. 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.
Sat 6/205:05 pm
SFO
- HLN
1 stop4h 26m
Delta
Mon 6/225:35 am
HLN
- SFO
1 stop4h 21m
Delta
Deal found 5/24![Delta logo]()
$465
This Delta deal was found by Cheapflights users on 5/25. 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.
Sun 6/215:50 am
SFO
- HLN
1 stop5h 30m
Delta
Fri 6/265:35 am
HLN
- SFO
1 stop4h 21m
Delta
Deal found 5/25![Delta logo]()
$431
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 May 28, 2026.
Search for one-way flight options from San Francisco to Helena. Find affordable one-way fares based on user searches. Data last updated May 28, 2026.
This Delta deal was found by Cheapflights users on 5/25. 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.
Mon 6/155:50 am
SFO
- HLN
1 stop5h 30m
Delta
Deal found 5/25![Delta logo]()
$216
This Alaska Airlines deal was found by Cheapflights users on 5/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:43 pm
SFO
- HLN
2 stops18h 49m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$254
This Alaska Airlines deal was found by Cheapflights users on 5/27. 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 7/177:46 pm
SFO
- HLN
2 stops19h 46m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 5/25. 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.
Wed 6/105:25 pm
SFO
- HLN
1 stop4h 06m
Delta
Deal found 5/25![Delta logo]()
$310
This Delta deal was found by Cheapflights users on 5/24. 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.
Mon 6/225:25 pm
SFO
- HLN
1 stop4h 06m
Delta
Deal found 5/24![Delta logo]()
$320
This Alaska Airlines deal was found by Cheapflights users on 5/25. 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.
Sat 6/137:25 am
SFO
- HLN
2 stops8h 07m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 5/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:20 am
SFO
- HLN
2 stops8h 12m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 5/25. 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 6/166:03 am
SFO
- HLN
1 stop9h 29m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 5/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:25 am
SFO
- HLN
2 stops13h 55m
United Airlines
Deal found 5/25![United Airlines logo]()
$369
This Alaska Airlines deal was found by Cheapflights users on 5/24. 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.
Sun 7/126:00 am
SFO
- HLN
2 stops9h 32m
Alaska Airlines
Deal found 5/24![Alaska Airlines logo]()
$373
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 May 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $377 (Delta) |
One-way from | $216 (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 May 28, 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
Sat 8/15
9:00 am-4:32 pm
1 stop6h 32m
Helena
Wed 8/19
5:11 pm-9:30 pm
1 stop5h 19m
$404
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 10/27
6:00 am-4:11 pm
1 stop9h 11m
Helena
Thu 10/29
4:48 pm-9:29 pm
1 stop5h 41m
$404
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Fri 8/14
5:10 pm-10:30 pm
1 stop4h 20m
Helena
Wed 8/19
12:55 pm-9:59 pm
2 stops10h 04m
$409
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sun 8/16
2:40 pm-10:30 pm
2 stops6h 50m
Helena
Wed 8/19
5:40 am-8:50 am
1 stop4h 10m
$409
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sun 9/6
2:40 pm-10:30 pm
2 stops6h 50m
Helena
Sat 9/12
12:50 pm-8:19 pm
2 stops8h 29m
$414
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 10/27
1:00 pm-10:41 pm
2 stops8h 41m
Helena
Thu 10/29
5:45 am-11:54 am
2 stops7h 09m
$414
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Fri 9/4
2:40 pm-10:30 pm
2 stops6h 50m
Helena
Sat 9/12
12:50 pm-8:19 pm
2 stops8h 29m
$414
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Tue 8/11
10:18 am-4:32 pm
1 stop5h 14m
Helena
Sat 8/15
5:09 pm-10:27 pm
1 stop6h 18m
$431
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Fri 7/31
5:50 am-12:15 pm
1 stop5h 25m
Helena
Sun 8/2
5:40 am-8:51 am
1 stop4h 11m
$431
Quickest round-trip
San FranciscoHelena
SFO - HLN
SFOHLN
San Francisco
Sat 7/18
5:05 pm-10:39 pm
1 stop4h 34m
Helena
Sat 7/25
12:55 pm-4:02 pm
1 stop4h 07m
$431
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 May.
| 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 May 28, 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.
Overall
7.9
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
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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 May 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$291 | Average$522 | FlexibilityNo cancel fee | On-time75% |