$194+ Cheap flights from San Jose, CA to Helena (SJC - 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.
SJC — HLN
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Find cheap flights from San Jose 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 Jose to Helena
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Cheapest flights from San Jose to HelenaExplore the most affordable flight options available from San Jose to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
Explore the most affordable flight options available from San Jose to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:02 am
SJC
- HLN
1 stop7h 32m
Alaska Airlines
Wed 9/25:11 pm
HLN
- SJC
1 stop6h 46m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
SJC
- HLN
1 stop5h 15m
Delta
Fri 7/175:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:59 pm
SJC
- HLN
2 stops6h 40m
Delta
Thu 7/1612:55 pm
HLN
- SJC
1 stop4h 09m
Delta
Deal found 6/6![Delta logo]()
$436
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:45 am
SJC
- HLN
2 stops9h 51m
Delta
Sun 7/125:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$446
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:45 am
SJC
- HLN
2 stops9h 51m
Delta
Fri 7/105:40 am
HLN
- SJC
2 stops9h 32m
Delta
Deal found 6/6![Delta logo]()
$452
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:00 am
SJC
- HLN
1 stop5h 15m
Delta
Thu 7/1612:55 pm
HLN
- SJC
1 stop6h 31m
Delta
Deal found 6/6![Delta logo]()
$463
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 7/165:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Mon 7/2712:55 pm
HLN
- SJC
2 stops7h 37m
Delta
Deal found 6/8![Delta logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:19 am
SJC
- HLN
1 stop5h 13m
Alaska Airlines
Tue 7/145:09 pm
HLN
- SJC
1 stop6h 12m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:59 pm
SJC
- HLN
2 stops6h 40m
Delta
Mon 7/135:40 am
HLN
- SJC
2 stops11h 06m
Delta
Deal found 6/6![Delta logo]()
$473
Best flights from San Jose to HelenaDiscover carefully curated flight deals from San Jose to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
Discover carefully curated flight deals from San Jose to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
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.
Sat 8/298:02 am
SJC
- HLN
1 stop7h 32m
Alaska Airlines
Wed 9/25:11 pm
HLN
- SJC
1 stop6h 46m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$387
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.
Sat 7/185:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Thu 7/235:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/8![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
SJC
- HLN
1 stop5h 15m
Delta
Sun 7/125:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$441
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Fri 7/105:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$441
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/132:59 pm
SJC
- HLN
2 stops6h 40m
Delta
Wed 7/155:40 am
HLN
- SJC
2 stops11h 06m
Delta
Deal found 6/6![Delta logo]()
$441
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:01 pm
SJC
- HLN
1 stop4h 35m
Delta
Sun 7/125:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$441
Last-minute flights from San Jose to HelenaDiscover last-minute flight deals from San Jose to Helena. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Helena. Data last updated June 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:45 am
SJC
- HLN
2 stops9h 51m
Delta
Sun 7/125:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$446
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:45 am
SJC
- HLN
2 stops9h 51m
Delta
Fri 7/105:40 am
HLN
- SJC
2 stops9h 32m
Delta
Deal found 6/6![Delta logo]()
$452
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:01 pm
SJC
- HLN
1 stop4h 35m
Delta
Mon 7/135:40 am
HLN
- SJC
2 stops11h 06m
Delta
Deal found 6/6![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
SJC
- HLN
1 stop5h 15m
Delta
Fri 7/175:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:59 pm
SJC
- HLN
2 stops6h 40m
Delta
Wed 7/155:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/6![Delta logo]()
$436
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:59 pm
SJC
- HLN
2 stops6h 40m
Delta
Thu 7/1612:55 pm
HLN
- SJC
2 stops10h 18m
Delta
Deal found 6/6![Delta logo]()
$441
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:59 pm
SJC
- HLN
2 stops6h 40m
Delta
Mon 7/135:40 am
HLN
- SJC
2 stops11h 06m
Delta
Deal found 6/6![Delta logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:19 am
SJC
- HLN
1 stop5h 13m
Alaska Airlines
Tue 7/145:09 pm
HLN
- SJC
1 stop6h 12m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:00 am
SJC
- HLN
1 stop5h 15m
Delta
Thu 7/1612:55 pm
HLN
- SJC
1 stop6h 31m
Delta
Deal found 6/6![Delta logo]()
$463
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 7/165:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Mon 7/2712:55 pm
HLN
- SJC
2 stops7h 37m
Delta
Deal found 6/8![Delta logo]()
$468
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.
Mon 7/208:20 am
SJC
- HLN
1 stop7h 12m
Alaska Airlines
Mon 7/275:09 pm
HLN
- SJC
1 stop24h 23m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$492
One-way flights from San Jose to HelenaSearch for one-way flight options from San Jose to Helena. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
Search for one-way flight options from San Jose to Helena. Find affordable one-way fares based on user searches. Data last updated June 11, 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 9/25:12 pm
SJC
- HLN
1 stop4h 18m
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.
Fri 9/45:12 pm
SJC
- HLN
1 stop4h 18m
Delta
Deal found 6/8![Delta logo]()
$216
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 9/311:38 am
SJC
- HLN
2 stops9h 52m
Delta
Deal found 6/8![Delta logo]()
$335
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.
Tue 6/236:00 am
SJC
- HLN
1 stop5h 20m
Delta
Deal found 6/8![Delta logo]()
$342
Find flight deals from San Jose to Helena
Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) 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 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $346 (Alaska Airlines) |
One-way from | $194 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Jose 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 11, 2026.
Use the filters below to find and compare flights from San Jose to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sat 8/29
8:02 am-4:34 pm
1 stop7h 32m
Helena
Wed 9/2
5:11 pm-10:57 pm
1 stop6h 46m
$387
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sat 7/18
5:01 pm-10:39 pm
1 stop4h 38m
Helena
Thu 7/23
5:40 am-8:57 am
1 stop4h 17m
$431
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Tue 7/7
6:00 am-12:15 pm
1 stop5h 15m
Helena
Sun 7/12
5:40 am-8:57 am
1 stop4h 17m
$441
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 7/8
5:01 pm-10:39 pm
1 stop4h 38m
Helena
Fri 7/10
5:40 am-8:57 am
1 stop4h 17m
$441
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 7/13
2:59 pm-10:39 pm
2 stops6h 40m
Helena
Wed 7/15
5:40 am-3:46 pm
2 stops11h 06m
$441
Quickest round-trip
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 7/6
5:01 pm-10:36 pm
1 stop4h 35m
Helena
Sun 7/12
5:40 am-8:57 am
1 stop4h 17m
$441
Cheapest one-way
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 9/2
11:38 am-10:30 pm
2 stops9h 52m
$199
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sun 9/6
6:00 am-12:15 pm
1 stop5h 15m
$216
Quickest one-way
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 9/7
5:12 pm-10:30 pm
1 stop4h 18m
$216
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Fri 9/4
5:12 pm-10:30 pm
1 stop4h 18m
$216
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from San Jose 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 Jose to Helena in June.
| 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 Jose, California-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose, California-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose, California-Helena flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Jose, California-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 Jose, California-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 Jose to Helena
Have a flexible travel schedule? Discover the best time to fly to Helena from San Jose with our price prediction graph.
SJC-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.
Related info for your journey
Find useful and relevant information for your journey from San Jose 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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