$216+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — HLN
Jul 22 — Jul 291
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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Best
Last-minute
One-way
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 22, 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 22, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 10/1310:35 am
SJC
- HLN
1 stop4h 36m
Alaska Airlines
Tue 10/274:48 pm
HLN
- SJC
1 stop21h 30m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 10/138:00 am
SJC
- HLN
1 stop7h 11m
Alaska Airlines
Fri 10/304:48 pm
HLN
- SJC
1 stop17h 53m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$353
This Delta deal was found by Cheapflights users on 6/20. 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 10/1211:33 am
SJC
- HLN
2 stops23h 51m
Delta
Tue 10/2712:50 pm
HLN
- SJC
2 stops10h 21m
Delta
Deal found 6/20![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 6/20. 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 10/147:35 pm
SJC
- HLN
2 stops15h 49m
Delta
Tue 10/275:45 am
HLN
- SJC
2 stops9h 24m
Delta
Deal found 6/20![Delta logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 9/176:17 am
SJC
- HLN
1 stop9h 24m
Alaska Airlines
Tue 9/295:18 pm
HLN
- SJC
1 stop23h 33m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 6/20. 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 10/137:35 pm
SJC
- HLN
2 stops15h 49m
Delta
Mon 10/265:45 am
HLN
- SJC
2 stops12h 12m
Delta
Deal found 6/20![Delta logo]()
$371
This Delta deal was found by Cheapflights users on 6/20. 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 10/175:45 am
SJC
- HLN
1 stop5h 39m
Delta
Sat 10/315:45 am
HLN
- SJC
2 stops17h 26m
Delta
Deal found 6/20![Delta logo]()
$372
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 10/156:15 am
SJC
- HLN
1 stop8h 56m
Alaska Airlines
Fri 10/304:48 pm
HLN
- SJC
1 stop24h 04m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$376
This Delta deal was found by Cheapflights users on 6/20. 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 10/173:00 pm
SJC
- HLN
2 stops6h 41m
Delta
Tue 10/275:45 am
HLN
- SJC
2 stops12h 12m
Delta
Deal found 6/20![Delta logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 9/142:13 pm
SJC
- HLN
1 stop25h 28m
Alaska Airlines
Thu 10/15:18 pm
HLN
- SJC
1 stop17h 14m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 6/20. 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 10/127:35 pm
SJC
- HLN
2 stops15h 49m
Delta
Thu 10/2912:50 pm
HLN
- SJC
2 stops10h 21m
Delta
Deal found 6/20![Delta logo]()
$385
This Delta deal was found by Cheapflights users on 6/20. 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 10/142:35 pm
SJC
- HLN
2 stops20h 49m
Delta
Mon 10/2612:50 pm
HLN
- SJC
2 stops10h 21m
Delta
Deal found 6/20![Delta logo]()
$386
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 22, 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 22, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 10/276:15 am
SJC
- HLN
1 stop8h 56m
Alaska Airlines
Sat 10/314:48 pm
HLN
- SJC
1 stop7h 05m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 6/18. 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 7/125:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Wed 7/155:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/18![Delta logo]()
$431
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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 9/308:00 am
SJC
- HLN
1 stop7h 41m
Alaska Airlines
Sat 10/34:48 pm
HLN
- SJC
1 stop7h 05m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 10/128:36 pm
SJC
- HLN
1 stop18h 35m
Alaska Airlines
Fri 10/304:48 pm
HLN
- SJC
1 stop24h 04m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 6/20. 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 10/115:45 am
SJC
- HLN
1 stop5h 39m
Delta
Fri 10/305:45 am
HLN
- SJC
1 stop4h 29m
Delta
Deal found 6/20![Delta logo]()
$431
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 10/128:36 pm
SJC
- HLN
1 stop18h 35m
Alaska Airlines
Thu 10/294:48 pm
HLN
- SJC
1 stop17h 53m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 6/19. 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 8/52:59 pm
SJC
- HLN
2 stops6h 31m
Delta
Sun 8/95:40 am
HLN
- SJC
2 stops6h 03m
Delta
Deal found 6/19![Delta logo]()
$441
Last-minute flights from San Jose to HelenaDiscover last-minute flight deals from San Jose to Helena. Data last updated June 22, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Helena. Data last updated June 22, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/18. 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 7/38:20 am
SJC
- HLN
1 stop7h 12m
Alaska Airlines
Tue 7/75:09 pm
HLN
- SJC
1 stop27h 51m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$766
This Delta deal was found by Cheapflights users on 6/17. 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 7/45:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Wed 7/85:40 am
HLN
- SJC
2 stops11h 06m
Delta
Deal found 6/17![Delta logo]()
$562
This Expedia deal was found by Cheapflights users on 6/17. 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 7/48:20 am
SJC
- HLN
1 stop7h 12m
Alaska Airlines
Wed 7/85:09 pm
HLN
- SJC
1 stop6h 31m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$606
This Delta deal was found by Cheapflights users on 6/17. 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 7/105:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Tue 7/145:40 am
HLN
- SJC
2 stops11h 06m
Delta
Deal found 6/17![Delta logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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 7/106:45 pm
SJC
- HLN
1 stop20h 47m
Alaska Airlines
Tue 7/145:09 pm
HLN
- SJC
1 stop6h 12m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$527
This Delta deal was found by Cheapflights users on 6/18. 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 7/125:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Wed 7/155:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/18![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 6/19. 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 7/276:00 am
SJC
- HLN
1 stop5h 15m
Delta
Wed 7/295:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 6/19![Delta logo]()
$483
This Expedia deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:12 pm
SJC
- HLN
2 stops19h 20m
Alaska Airlines
Wed 7/295:09 pm
HLN
- SJC
2 stops17h 17m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$721
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 22, 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 22, 2026.
This Delta deal was found by Cheapflights users on 6/20. 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 7/295:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Deal found 6/20![Delta logo]()
$216
This Delta deal was found by Cheapflights users on 6/19. 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 8/95:10 pm
SJC
- HLN
1 stop4h 20m
Delta
Deal found 6/19![Delta logo]()
$225
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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 7/810:19 am
SJC
- HLN
1 stop5h 13m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 6/21. 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
Deal found 6/21![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 6/19. 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 7/25:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Deal found 6/19![Delta logo]()
$698
This Expedia deal was found by Cheapflights users on 6/19. 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.
Thu 7/27:48 pm
SJC
- HLN
2 stops19h 44m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$757
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 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $343 (Delta) |
One-way from | $216 (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 22, 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
Tue 10/27
6:15 am-4:11 pm
1 stop8h 56m
Helena
Sat 10/31
4:48 pm-10:53 pm
1 stop7h 05m
$343
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 9/30
8:00 am-4:41 pm
1 stop7h 41m
Helena
Sat 10/3
4:48 pm-10:53 pm
1 stop7h 05m
$356
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 10/12
8:36 pm-4:11 pm
1 stop18h 35m
Helena
Fri 10/30
4:48 pm-3:52 pm
1 stop24h 04m
$366
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 10/12
8:36 pm-4:11 pm
1 stop18h 35m
Helena
Thu 10/29
4:48 pm-9:41 am
1 stop17h 53m
$379
Quickest round-trip
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sun 7/12
5:01 pm-10:39 pm
1 stop4h 38m
Helena
Wed 7/15
5:40 am-8:57 am
1 stop4h 17m
$431
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sun 10/11
5:45 am-12:24 pm
1 stop5h 39m
Helena
Fri 10/30
5:45 am-9:14 am
1 stop4h 29m
$431
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 8/5
2:59 pm-10:30 pm
2 stops6h 31m
Helena
Sun 8/9
5:40 am-10:43 am
2 stops6h 03m
$441
Cheapest one-way
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 7/29
5:01 pm-10:39 pm
1 stop4h 38m
$216
Quickest one-way
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sun 8/9
5:10 pm-10:30 pm
1 stop4h 20m
$225
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 7/8
10:19 am-4:32 pm
1 stop5h 13m
$342
Showing 1-10 of 12 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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