$160+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — HLN
Jun 13 — Jun 201
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
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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 May 14, 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 May 14, 2026.
This Delta deal was found by Cheapflights users on 5/13. 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 6/206:00 am
SJC
- HLN
1 stop5h 20m
Delta
Tue 6/231:00 pm
HLN
- SJC
1 stop4h 07m
Delta
Deal found 5/13![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 5/13. 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 6/206:00 am
SJC
- HLN
1 stop5h 20m
Delta
Wed 6/241:00 pm
HLN
- SJC
2 stops10h 16m
Delta
Deal found 5/13![Delta logo]()
$324
This Delta deal was found by Cheapflights users on 5/13. 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 6/2211:45 am
SJC
- HLN
2 stops9h 46m
Delta
Tue 6/231:00 pm
HLN
- SJC
2 stops10h 16m
Delta
Deal found 5/13![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 5/12. 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 5/302:51 pm
SJC
- HLN
2 stops6h 42m
Delta
Mon 6/15:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 5/12![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 5/13. 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 6/165:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Wed 6/241:00 pm
HLN
- SJC
1 stop4h 07m
Delta
Deal found 5/13![Delta logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 5/9. 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 5/308:15 pm
SJC
- HLN
1 stop18h 51m
Alaska Airlines
Wed 6/34:43 pm
HLN
- SJC
1 stop7h 48m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 5/13. 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 6/165:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Sat 6/277:00 am
HLN
- SJC
2 stops8h 19m
Delta
Deal found 5/13![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 5/13. 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 6/195:01 pm
SJC
- HLN
1 stop4h 40m
Delta
Fri 6/265:35 am
HLN
- SJC
1 stop4h 27m
Delta
Deal found 5/13![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 5/13. 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 6/195:01 pm
SJC
- HLN
1 stop4h 40m
Delta
Mon 6/221:00 pm
HLN
- SJC
2 stops10h 16m
Delta
Deal found 5/13![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 5/13. 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 7/102:59 pm
SJC
- HLN
2 stops6h 40m
Delta
Sat 7/1112:55 pm
HLN
- SJC
2 stops7h 20m
Delta
Deal found 5/13![Delta logo]()
$384
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 May 14, 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 May 14, 2026.
This Delta deal was found by Cheapflights users on 5/12. 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 7/305:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Sun 8/25:40 am
HLN
- SJC
1 stop4h 17m
Delta
Deal found 5/12![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 5/9. 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 5/308:15 pm
SJC
- HLN
1 stop18h 51m
Alaska Airlines
Wed 6/34:43 pm
HLN
- SJC
1 stop7h 48m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 5/13. 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
Sat 7/1112:55 pm
HLN
- SJC
1 stop6h 28m
Delta
Deal found 5/13![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 5/13. 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 5/302:51 pm
SJC
- HLN
2 stops6h 42m
Delta
Mon 6/15:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 5/13![Delta logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 5/12. 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 7/308:20 am
SJC
- HLN
1 stop7h 12m
Alaska Airlines
Mon 8/35:09 pm
HLN
- SJC
1 stop7h 50m
Alaska Airlines
Deal found 5/12![Alaska Airlines logo]()
$509
This Delta deal was found by Cheapflights users on 5/11. 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 6/105:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Tue 6/165:35 am
HLN
- SJC
1 stop4h 27m
Delta
Deal found 5/11![Delta logo]()
$479
Last-minute flights from San Jose to HelenaDiscover last-minute flight deals from San Jose to Helena. Data last updated May 14, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Helena. Data last updated May 14, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/12. 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 5/302:51 pm
SJC
- HLN
2 stops6h 42m
Delta
Mon 6/15:45 am
HLN
- SJC
1 stop4h 13m
Delta
Deal found 5/12![Delta logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 5/9. 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 5/308:15 pm
SJC
- HLN
1 stop18h 51m
Alaska Airlines
Wed 6/34:43 pm
HLN
- SJC
1 stop7h 48m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 5/13. 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 6/165:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Fri 6/265:35 am
HLN
- SJC
1 stop4h 27m
Delta
Deal found 5/13![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 5/13. 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 6/165:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Tue 6/231:00 pm
HLN
- SJC
2 stops10h 16m
Delta
Deal found 5/13![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 5/13. 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 6/1611:45 am
SJC
- HLN
2 stops9h 46m
Delta
Mon 6/221:00 pm
HLN
- SJC
2 stops10h 16m
Delta
Deal found 5/13![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 5/13. 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 6/195:01 pm
SJC
- HLN
1 stop4h 40m
Delta
Wed 6/241:00 pm
HLN
- SJC
1 stop4h 07m
Delta
Deal found 5/13![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 5/13. 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 6/206:00 am
SJC
- HLN
1 stop5h 20m
Delta
Fri 6/261:00 pm
HLN
- SJC
1 stop4h 07m
Delta
Deal found 5/13![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 5/13. 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 6/206:00 am
SJC
- HLN
1 stop5h 20m
Delta
Sat 6/277:00 am
HLN
- SJC
2 stops8h 19m
Delta
Deal found 5/13![Delta logo]()
$324
This Delta deal was found by Cheapflights users on 5/13. 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 6/2211:45 am
SJC
- HLN
2 stops9h 46m
Delta
Sat 6/277:00 am
HLN
- SJC
2 stops8h 19m
Delta
Deal found 5/13![Delta logo]()
$329
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 May 14, 2026.
Search for one-way flight options from San Jose to Helena. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
SJC
- HLN
1 stop5h 20m
Delta
Deal found 5/10![Delta logo]()
$160
This Delta deal was found by Cheapflights users on 5/12. 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 8/112:59 pm
SJC
- HLN
2 stops6h 31m
Delta
Deal found 5/12![Delta logo]()
$165
This Delta deal was found by Cheapflights users on 5/13. 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 6/295:01 pm
SJC
- HLN
1 stop4h 30m
Delta
Deal found 5/13![Delta logo]()
$200
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:07 pm
SJC
- HLN
1 stop4h 23m
Delta
Deal found 5/10![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:01 pm
SJC
- HLN
1 stop4h 38m
Delta
Deal found 5/10![Delta logo]()
$250
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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.
Tue 6/96:53 pm
SJC
- HLN
2 stops20h 39m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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 6/2910:19 am
SJC
- HLN
1 stop5h 13m
Alaska Airlines
Deal found 5/13![Alaska Airlines logo]()
$310
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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 8/18:00 am
SJC
- HLN
2 stops7h 32m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$341
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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.
Sun 8/29:46 am
SJC
- HLN
2 stops5h 46m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$376
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 May 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $319 (Delta) |
One-way from | $160 (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 May 14, 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
Thu 7/30
5:01 pm-10:39 pm
1 stop4h 38m
Helena
Sun 8/2
5:40 am-8:57 am
1 stop4h 17m
$319
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 7/8
5:01 pm-10:39 pm
1 stop4h 38m
Helena
Sat 7/11
12:55 pm-6:23 pm
1 stop6h 28m
$359
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sat 5/30
8:15 pm-4:06 pm
1 stop18h 51m
Helena
Wed 6/3
4:43 pm-11:31 pm
1 stop7h 48m
$363
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Sat 5/30
2:51 pm-10:33 pm
2 stops6h 42m
Helena
Mon 6/1
5:45 am-8:58 am
1 stop4h 13m
$374
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Wed 6/10
5:01 pm-10:31 pm
1 stop4h 30m
Helena
Tue 6/16
5:35 am-9:02 am
1 stop4h 27m
$479
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Thu 7/30
8:20 am-4:32 pm
1 stop7h 12m
Helena
Mon 8/3
5:09 pm-11:59 pm
1 stop7h 50m
$509
Cheapest one-way
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Tue 6/9
6:00 am-12:20 pm
1 stop5h 20m
$160
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Tue 8/11
8:20 am-4:32 pm
1 stop7h 12m
$160
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Tue 8/11
2:59 pm-10:30 pm
2 stops6h 31m
$165
San JoseHelena
SJC - HLN
SJCHLN
San Jose
Mon 6/29
5:01 pm-10:31 pm
1 stop4h 30m
$200
Showing 1-10 of 16 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 May.
| 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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