$239+ Cheap flights from Helena (HLN) to San Francisco Bay Area
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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SFO
Mar 4 — Mar 111
1 adult, Economy
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Find cheap flights from Helena to San Francisco Bay Area 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 Helena to San Francisco Bay Area
Cheapest
Best
Last-minute
Cheapest flights from Helena to San Francisco Bay AreaExplore the most affordable flight options available from Helena to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.
Explore the most affordable flight options available from Helena to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 3/34:36 pm
HLN
- OAK
1 stop7h 13m
Alaska Airlines
Wed 3/49:54 am
OAK
- HLN
1 stop5h 05m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 2/284:36 pm
HLN
- SJC
1 stop7h 23m
Alaska Airlines
Sat 3/72:36 pm
SJC
- HLN
1 stop23h 23m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$251
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 2/254:36 pm
HLN
- SFO
1 stop7h 20m
Alaska Airlines
Sat 2/286:30 am
SFO
- HLN
1 stop8h 29m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 6/54:43 pm
HLN
- SFO
1 stop5h 29m
Alaska Airlines
Mon 6/88:45 pm
SFO
- HLN
1 stop18h 21m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$361
This Travelocity deal was found by Cheapflights users on 2/1. 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.
Sun 5/244:43 pm
HLN
- SFO
1 stop5h 29m
Alaska Airlines
Thu 6/410:14 am
SFO
- HLN
1 stop4h 52m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 6/184:59 pm
HLN
- SFO
2 stops17h 05m
Alaska Airlines
Wed 6/248:00 am
SFO
- HLN
1 stop7h 22m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$452
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 8/184:59 pm
HLN
- SFO
2 stops7h 51m
Alaska Airlines
Wed 8/266:00 am
SFO
- HLN
2 stops8h 31m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$484
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 2/144:36 pm
HLN
- SJC
1 stop7h 23m
Alaska Airlines
Wed 2/1810:16 am
SJC
- HLN
1 stop4h 43m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$559
This Delta deal was found by Cheapflights users on 2/1. 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 2/85:30 am
HLN
- OAK
1 stop7h 22m
Delta
Mon 2/95:55 am
OAK
- HLN
1 stop5h 32m
Delta
Deal found 2/1![Delta logo]()
$861
This Delta deal was found by Cheapflights users on 2/1. 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 2/285:30 am
HLN
- SJC
2 stops8h 22m
Delta
Sat 3/75:45 am
SJC
- HLN
1 stop5h 40m
Delta
Deal found 2/1![Delta logo]()
$897
This Delta deal was found by Cheapflights users on 2/1. 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 2/71:10 pm
HLN
- OAK
1 stop23h 42m
Delta
Tue 2/105:00 pm
OAK
- HLN
1 stop18h 27m
Delta
Deal found 2/1![Delta logo]()
$897
This Delta deal was found by Cheapflights users on 2/1. 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 2/71:10 pm
HLN
- OAK
1 stop23h 42m
Delta
Mon 2/95:55 am
OAK
- HLN
1 stop15h 34m
Delta
Deal found 2/1![Delta logo]()
$926
Best flights from Helena to San Francisco Bay AreaDiscover carefully curated flight deals from Helena to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 2, 2026.
Discover carefully curated flight deals from Helena to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 3/34:36 pm
HLN
- OAK
1 stop7h 13m
Alaska Airlines
Wed 3/49:54 am
OAK
- HLN
1 stop5h 05m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 2/284:36 pm
HLN
- SJC
1 stop7h 23m
Alaska Airlines
Sat 3/72:36 pm
SJC
- HLN
1 stop23h 23m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$251
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 2/254:36 pm
HLN
- SFO
1 stop7h 20m
Alaska Airlines
Sat 2/286:30 am
SFO
- HLN
1 stop8h 29m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 6/54:43 pm
HLN
- SFO
1 stop5h 29m
Alaska Airlines
Mon 6/88:45 pm
SFO
- HLN
1 stop18h 21m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 2/1. 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 2/285:30 am
HLN
- SJC
2 stops8h 22m
Delta
Sat 3/75:45 am
SJC
- HLN
1 stop5h 40m
Delta
Deal found 2/1![Delta logo]()
$897
This Travelocity deal was found by Cheapflights users on 2/1. 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.
Sun 5/244:43 pm
HLN
- SFO
1 stop5h 29m
Alaska Airlines
Thu 6/410:14 am
SFO
- HLN
1 stop4h 52m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 2/144:36 pm
HLN
- SJC
1 stop7h 23m
Alaska Airlines
Wed 2/1810:16 am
SJC
- HLN
1 stop4h 43m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$559
Last-minute flights from Helena to San Francisco Bay AreaDiscover last-minute flight deals from Helena to San Francisco Bay Area. Data last updated February 2, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to San Francisco Bay Area. Data last updated February 2, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 2/1. 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 2/25:30 am
HLN
- OAK
1 stop7h 22m
Delta
Tue 2/105:00 pm
OAK
- HLN
1 stop4h 29m
Delta
Deal found 2/1![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 2/1. 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 2/25:30 am
HLN
- OAK
1 stop7h 22m
Delta
Sat 2/75:55 am
OAK
- HLN
1 stop5h 32m
Delta
Deal found 2/1![Delta logo]()
$1,013
This Delta deal was found by Cheapflights users on 2/1. 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 2/61:10 pm
HLN
- OAK
1 stop23h 42m
Delta
Tue 2/105:55 am
OAK
- HLN
1 stop15h 34m
Delta
Deal found 2/1![Delta logo]()
$1,011
This Delta deal was found by Cheapflights users on 2/1. 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 2/71:10 pm
HLN
- OAK
1 stop23h 42m
Delta
Tue 2/105:00 pm
OAK
- HLN
1 stop18h 27m
Delta
Deal found 2/1![Delta logo]()
$897
This Delta deal was found by Cheapflights users on 2/1. 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 2/71:10 pm
HLN
- OAK
1 stop23h 42m
Delta
Mon 2/95:55 am
OAK
- HLN
1 stop15h 34m
Delta
Deal found 2/1![Delta logo]()
$926
This Delta deal was found by Cheapflights users on 2/1. 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 2/85:30 am
HLN
- OAK
1 stop7h 22m
Delta
Mon 2/95:55 am
OAK
- HLN
1 stop5h 32m
Delta
Deal found 2/1![Delta logo]()
$861
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 2/144:36 pm
HLN
- SJC
1 stop7h 23m
Alaska Airlines
Wed 2/1810:16 am
SJC
- HLN
1 stop4h 43m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$559
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 2/154:36 pm
HLN
- SFO
1 stop6h 19m
Alaska Airlines
Thu 2/196:00 am
SFO
- HLN
2 stops8h 59m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$548
This Delta deal was found by Cheapflights users on 1/31. 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 2/155:30 am
HLN
- SFO
1 stop4h 30m
Delta
Thu 2/195:55 am
SFO
- HLN
1 stop5h 30m
Delta
Deal found 1/31![Delta logo]()
$559
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 2/254:36 pm
HLN
- SFO
1 stop7h 20m
Alaska Airlines
Sat 2/286:30 am
SFO
- HLN
1 stop8h 29m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 2/284:36 pm
HLN
- SJC
1 stop7h 23m
Alaska Airlines
Sat 3/72:36 pm
SJC
- HLN
1 stop23h 23m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$251
This Delta deal was found by Cheapflights users on 2/1. 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 2/285:30 am
HLN
- SJC
2 stops8h 22m
Delta
Sat 3/75:45 am
SJC
- HLN
1 stop5h 40m
Delta
Deal found 2/1![Delta logo]()
$897
Find flight deals from Helena to San Francisco Bay Area
Keep the following information in mind while searching for Helena to San Francisco Bay Area flight deals. Data was last updated February 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Alaska Airlines) |
Popular in | July |
Cheapest in | December |
Average price | $357 |
Cheapflights Fare Finder
Customize your flight search to find flights from Helena to San Francisco Bay Area 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 February 2, 2026.
Use the filters below to find and compare flights from Helena to San Francisco Bay Area that are best for you.
Fly from
Helena
Fly to
San Francisco Bay Area
Route
Depart
Return
Price
HelenaOakland
HLN - OAK
HLNOAK
Helena
Tue 3/3
4:36 pm-10:49 pm
1 stop7h 13m
Oakland
Wed 3/4
9:54 am-3:59 pm
1 stop5h 05m
$239
HelenaSan Jose
HLN - SJC
HLNSJC
Helena
Sat 2/28
4:36 pm-10:59 pm
1 stop7h 23m
San Jose
Sat 3/7
2:36 pm-2:59 pm
1 stop23h 23m
$251
HelenaSan Francisco
HLN - SFO
HLNSFO
Helena
Wed 2/25
4:36 pm-10:56 pm
1 stop7h 20m
San Francisco
Sat 2/28
6:30 am-3:59 pm
1 stop8h 29m
$270
HelenaSan Francisco
HLN - SFO
HLNSFO
Helena
Fri 6/5
4:43 pm-9:12 pm
1 stop5h 29m
San Francisco
Mon 6/8
8:45 pm-4:06 pm
1 stop18h 21m
$361
HelenaSan Francisco
HLN - SFO
HLNSFO
Helena
Sun 5/24
4:43 pm-9:12 pm
1 stop5h 29m
San Francisco
Thu 6/4
10:14 am-4:06 pm
1 stop4h 52m
$390
HelenaSan Jose
HLN - SJC
HLNSJC
Helena
Sat 2/14
4:36 pm-10:59 pm
1 stop7h 23m
San Jose
Wed 2/18
10:16 am-3:59 pm
1 stop4h 43m
$559
HelenaSan Jose
HLN - SJC
HLNSJC
Helena
Sat 2/28
5:30 am-12:52 pm
2 stops8h 22m
San Jose
Sat 3/7
5:45 am-12:25 pm
1 stop5h 40m
$897
Best time to book a flight from Helena to San Francisco Bay Area
Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Helena with our price prediction graph.
HLN-OAK
HLN-SJC
HLN-SFO
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 Helena to San Francisco Bay Area
HLN-zzXIH
HLN-OAK
HLN-SJC
HLN-SFO
What is the cheapest month to book a flight from Helena to San Francisco Bay Area?
Currently, July is the cheapest month in which you can book a flight from Helena to San Francisco Bay Area (average of $41). Flying from Helena to San Francisco Bay Area in May is currently the most expensive (average of $224). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing San Francisco Bay Area
Get insights into the airlines that provide service to San Francisco Bay Area. 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 San Francisco Bay Area. Reviews last updated February 2, 2026.
See what other customers who have flown with Delta from Helena to San Francisco Bay Area have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Helena to San Francisco Bay Area. 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 Helena to San Francisco Bay Area
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Helena to San Francisco Bay Area
Discover the top airline that operate flights from Helena to San Francisco Bay Area. 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 February 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$238 | Average$288 | FlexibilityNo cancel fee | On-timeN/A |