$175+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — HLN
May 29 — Jun 51
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 April 29, 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 April 29, 2026.
This Delta deal was found by Cheapflights users on 4/29. 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
Tue 7/145:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 4/29![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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.
Sun 5/248:00 am
SJC
- HLN
1 stop7h 06m
Alaska Airlines
Thu 5/284:43 pm
HLN
- SJC
1 stop7h 48m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 4/25. 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 5/246:00 am
SJC
- HLN
1 stop5h 23m
Delta
Wed 5/271:03 pm
HLN
- SJC
2 stops8h 02m
Delta
Deal found 4/25![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/29. 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
Tue 7/145:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 4/29![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 4/27. 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 6/54:59 pm
SJC
- HLN
1 stop4h 34m
Delta
Mon 6/85:35 am
HLN
- SJC
1 stop4h 27m
Delta
Deal found 4/27![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 4/25. 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 5/238:50 pm
SJC
- HLN
2 stops14h 33m
Delta
Mon 5/255:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 4/25![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 4/27. 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.
Sun 8/26:00 am
SJC
- HLN
1 stop5h 15m
Delta
Sat 8/812:55 pm
HLN
- SJC
1 stop4h 16m
Delta
Deal found 4/27![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 4/25. 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 5/236:00 am
SJC
- HLN
1 stop5h 23m
Delta
Tue 5/261:03 pm
HLN
- SJC
1 stop4h 06m
Delta
Deal found 4/25![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 4/25. 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 5/246:00 am
SJC
- HLN
1 stop5h 23m
Delta
Tue 5/265:45 am
HLN
- SJC
2 stops10h 47m
Delta
Deal found 4/25![Delta logo]()
$402
This Delta deal was found by Cheapflights users on 4/25. 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 5/242:51 pm
SJC
- HLN
2 stops20h 32m
Delta
Thu 5/281:03 pm
HLN
- SJC
1 stop4h 06m
Delta
Deal found 4/25![Delta logo]()
$406
This Delta deal was found by Cheapflights users on 4/27. 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.
Sat 6/275:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Wed 7/15:35 am
HLN
- SJC
2 stops9h 44m
Delta
Deal found 4/27![Delta logo]()
$412
This Delta deal was found by Cheapflights users on 4/26. 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 6/306:12 pm
SJC
- HLN
2 stops17h 08m
Delta
Wed 7/812:55 pm
HLN
- SJC
1 stop6h 31m
Delta
Deal found 4/26![Delta logo]()
$419
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 April 29, 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 April 29, 2026.
This Delta deal was found by Cheapflights users on 4/26. 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 7/45:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Wed 7/812:55 pm
HLN
- SJC
1 stop4h 09m
Delta
Deal found 4/26![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 6/28:00 am
SJC
- HLN
1 stop7h 06m
Alaska Airlines
Tue 6/94:43 pm
HLN
- SJC
2 stops32h 11m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 4/25. 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 5/256:00 am
SJC
- HLN
1 stop5h 23m
Delta
Wed 5/271:03 pm
HLN
- SJC
2 stops8h 02m
Delta
Deal found 4/25![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/25. 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 5/236:00 am
SJC
- HLN
1 stop5h 23m
Delta
Sun 5/245:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 4/25![Delta logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 7/88:20 am
SJC
- HLN
1 stop7h 12m
Alaska Airlines
Tue 7/145:09 pm
HLN
- SJC
2 stops16h 23m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$485
This Delta deal was found by Cheapflights users on 4/26. 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.
Thu 5/216:00 am
SJC
- HLN
1 stop5h 23m
Delta
Tue 5/261:03 pm
HLN
- SJC
1 stop4h 06m
Delta
Deal found 4/26![Delta logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 8/188:20 am
SJC
- HLN
1 stop7h 12m
Alaska Airlines
Sat 8/225:32 pm
HLN
- SJC
2 stops18h 27m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$492
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 7/88:20 am
SJC
- HLN
1 stop7h 12m
Alaska Airlines
Mon 7/135:09 pm
HLN
- SJC
2 stops21h 14m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 4/29. 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
2 stops14h 52m
Delta
Deal found 4/29![Delta logo]()
$482
This Delta deal was found by Cheapflights users on 4/25. 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 5/256:00 am
SJC
- HLN
1 stop5h 23m
Delta
Fri 5/295:45 am
HLN
- SJC
2 stops14h 34m
Delta
Deal found 4/25![Delta logo]()
$482
This Delta deal was found by Cheapflights users on 4/26. 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 7/45:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Sun 7/51:00 pm
HLN
- SJC
1 stop21h 02m
Delta
Deal found 4/26![Delta logo]()
$488
Last-minute flights from San Jose to HelenaDiscover last-minute flight deals from San Jose to Helena. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Helena. Data last updated April 29, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/25. 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.
Thu 5/216:00 am
SJC
- HLN
1 stop5h 23m
Delta
Mon 5/255:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 4/25![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 4/25. 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.
Thu 5/219:53 am
SJC
- HLN
2 stops11h 40m
Delta
Sun 5/245:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 4/25![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 4/25. 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.
Thu 5/217:00 am
SJC
- HLN
2 stops14h 33m
Delta
Wed 5/271:03 pm
HLN
- SJC
2 stops8h 02m
Delta
Deal found 4/25![Delta logo]()
$436
This Delta deal was found by Cheapflights users on 4/25. 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 5/238:50 pm
SJC
- HLN
2 stops14h 33m
Delta
Mon 5/255:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 4/25![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 4/25. 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 5/236:00 am
SJC
- HLN
1 stop5h 23m
Delta
Tue 5/261:03 pm
HLN
- SJC
1 stop4h 06m
Delta
Deal found 4/25![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 4/25. 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 5/236:00 am
SJC
- HLN
1 stop5h 23m
Delta
Sun 5/241:03 pm
HLN
- SJC
2 stops8h 02m
Delta
Deal found 4/25![Delta logo]()
$451
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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.
Sun 5/248:00 am
SJC
- HLN
1 stop7h 06m
Alaska Airlines
Thu 5/284:43 pm
HLN
- SJC
1 stop7h 48m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 4/25. 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 5/246:00 am
SJC
- HLN
1 stop5h 23m
Delta
Wed 5/271:03 pm
HLN
- SJC
2 stops8h 02m
Delta
Deal found 4/25![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/25. 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 5/246:00 am
SJC
- HLN
1 stop5h 23m
Delta
Tue 5/265:45 am
HLN
- SJC
2 stops10h 47m
Delta
Deal found 4/25![Delta logo]()
$402
This Delta deal was found by Cheapflights users on 4/25. 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 5/242:51 pm
SJC
- HLN
2 stops20h 32m
Delta
Thu 5/281:03 pm
HLN
- SJC
1 stop4h 06m
Delta
Deal found 4/25![Delta logo]()
$406
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 April 29, 2026.
Search for one-way flight options from San Jose to Helena. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Delta deal was found by Cheapflights users on 4/24. 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.
Tue 8/115:00 pm
SJC
- HLN
1 stop4h 34m
Delta
Deal found 4/24![Delta logo]()
$175
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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.
Tue 8/118:00 am
SJC
- HLN
2 stops7h 32m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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.
Mon 9/147:00 am
SJC
- HLN
2 stops8h 41m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$547
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 April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (Delta) |
One-way from | $175 (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 April 29, 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
Quickest round-trip
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sat 7/4
5:01 pm-10:31 pm
1 stop4h 30m
Helena
Wed 7/8
12:55 pm-4:04 pm
1 stop4h 09m
$349
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 5/25
6:00 am-12:23 pm
1 stop5h 23m
Helena
Wed 5/27
1:03 pm-8:05 pm
2 stops8h 02m
$356
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sat 5/23
6:00 am-12:23 pm
1 stop5h 23m
Helena
Sun 5/24
5:45 am-8:58 am
1 stop4h 13m
$394
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Tue 6/2
8:00 am-4:06 pm
1 stop7h 06m
Helena
Tue 6/9
4:43 pm-11:54 pm
2 stops32h 11m
$421
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Thu 5/21
6:00 am-12:23 pm
1 stop5h 23m
Helena
Tue 5/26
1:03 pm-4:09 pm
1 stop4h 06m
$424
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-7:32 pm
2 stops14h 52m
$482
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 5/25
6:00 am-12:23 pm
1 stop5h 23m
Helena
Fri 5/29
5:45 am-7:19 pm
2 stops14h 34m
$482
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 7/8
8:20 am-4:32 pm
1 stop7h 12m
Helena
Tue 7/14
5:09 pm-8:32 am
2 stops16h 23m
$485
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sat 7/4
5:01 pm-10:31 pm
1 stop4h 30m
Helena
Sun 7/5
1:00 pm-9:02 am
1 stop21h 02m
$488
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Tue 8/18
8:20 am-4:32 pm
1 stop7h 12m
Helena
Sat 8/22
5:32 pm-10:59 am
2 stops18h 27m
$492
Showing 1-10 of 13 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 April.
| 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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