$217+ Cheap flights from Seattle to Helena (SEA - HLN)
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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HLN
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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Find cheap flights from Seattle 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 Seattle to Helena
Cheapest
Best
Last-minute
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Cheapest flights from Seattle to HelenaExplore the most affordable flight options available from Seattle to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
Explore the most affordable flight options available from Seattle to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 11/71:28 pm -
Nonstop1h 36m
Wed 11/114:41 pm -
Nonstop1h 52m
Deal found 8/10![Alaska Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/222:05 pm -
Nonstop1h 36m
Wed 9/305:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/222:05 pm -
Nonstop1h 36m
Fri 10/25:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/212:05 pm -
Nonstop1h 36m
Wed 9/305:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 8/11. 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.
Mon 9/215:45 am -
1 stop5h 32m
Tue 9/2912:57 pm -
1 stop6h 39m
Deal found 8/11![Delta logo]()
$298
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/212:05 pm -
Nonstop1h 36m
Fri 10/25:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 8/11. 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.
Tue 9/225:45 am -
1 stop5h 32m
Tue 9/2912:57 pm -
1 stop4h 53m
Deal found 8/11![Delta logo]()
$328
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:05 pm -
Nonstop1h 36m
Tue 9/295:18 pm -
Nonstop1h 56m
Deal found 8/11![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:05 pm -
Nonstop1h 36m
Thu 10/15:18 pm -
Nonstop1h 56m
Deal found 8/11![Alaska Airlines logo]()
$347
This Booking.com deal was found by Cheapflights users on 8/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:05 pm -
Nonstop1h 36m
Sun 9/135:18 pm -
Nonstop1h 56m
Deal found 8/7![Alaska Airlines logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/212:05 pm -
Nonstop1h 36m
Mon 9/285:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 8/11. 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 9/235:45 am -
1 stop5h 32m
Tue 9/2912:57 pm -
1 stop6h 39m
Deal found 8/11![Delta logo]()
$358
Best flights from Seattle to HelenaDiscover carefully curated flight deals from Seattle to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from Seattle to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 11/71:28 pm -
Nonstop1h 36m
Wed 11/114:41 pm -
Nonstop1h 52m
Deal found 8/7![Alaska Airlines logo]()
$217
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:00 am -
1 stop7h 45m
Sun 8/306:15 am -
1 stop6h 29m
Deal found 8/9![United Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:30 am -
1 stop5h 45m
Wed 8/2612:55 pm -
1 stop6h 49m
Deal found 8/7![Delta logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/222:05 pm -
Nonstop1h 36m
Mon 9/285:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 8/271:58 pm -
Nonstop1h 36m
Mon 8/315:11 pm -
Nonstop1h 57m
Deal found 8/12![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 8/11. 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.
Tue 9/225:45 am -
1 stop5h 32m
Sat 9/2612:57 pm -
1 stop6h 58m
Deal found 8/11![Delta logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Wed 8/261:58 pm -
Nonstop1h 36m
Sun 8/305:11 pm -
Nonstop1h 57m
Deal found 8/10![Alaska Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:34 pm -
1 stop5h 56m
Mon 8/312:35 pm -
2 stops9h 51m
Deal found 8/12![United Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 8/10. 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 8/255:45 am -
1 stop5h 30m
Fri 8/2812:55 pm -
1 stop4h 59m
Deal found 8/10![Delta logo]()
$467
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:00 am -
1 stop7h 45m
Sat 9/262:30 pm -
2 stops9h 57m
Deal found 8/11![United Airlines logo]()
$512
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Thu 10/152:14 pm -
Nonstop1h 35m
Sun 10/185:26 pm -
Nonstop1h 52m
Deal found 8/8![Alaska Airlines logo]()
$442
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 9/112:05 pm -
Nonstop1h 36m
Thu 9/175:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$502
Last-minute flights from Seattle to HelenaDiscover last-minute flight deals from Seattle to Helena. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Helena. Data last updated August 12, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 8/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:05 pm -
Nonstop1h 36m
Sun 9/135:18 pm -
Nonstop1h 56m
Deal found 8/7![Alaska Airlines logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/212:05 pm -
Nonstop1h 36m
Wed 9/305:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 8/11. 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.
Mon 9/215:45 am -
1 stop5h 32m
Tue 9/2912:57 pm -
1 stop6h 39m
Deal found 8/11![Delta logo]()
$298
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/212:05 pm -
Nonstop1h 36m
Fri 10/25:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:05 pm -
Nonstop1h 36m
Tue 9/295:18 pm -
Nonstop1h 56m
Deal found 8/11![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:05 pm -
Nonstop1h 36m
Thu 10/15:18 pm -
Nonstop1h 56m
Deal found 8/11![Alaska Airlines logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/212:05 pm -
Nonstop1h 36m
Mon 9/285:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 8/11. 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.
Mon 9/215:45 am -
1 stop5h 32m
Fri 10/212:57 pm -
1 stop4h 53m
Deal found 8/11![Delta logo]()
$369
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/222:05 pm -
Nonstop1h 36m
Tue 9/295:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/222:05 pm -
Nonstop1h 36m
Fri 10/25:18 pm -
Nonstop1h 56m
Deal found 8/12![Alaska Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 8/11. 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.
Tue 9/225:45 am -
1 stop5h 32m
Tue 9/2912:57 pm -
1 stop4h 53m
Deal found 8/11![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 8/11. 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 9/235:45 am -
1 stop5h 32m
Tue 9/2912:57 pm -
1 stop6h 39m
Deal found 8/11![Delta logo]()
$358
One-way flights from Seattle to HelenaSearch for one-way flight options from Seattle to Helena. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from Seattle to Helena. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 9/71:58 pm -
Nonstop1h 36m
Deal found 8/7![Alaska Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:00 am -
1 stop7h 45m
Deal found 8/11![United Airlines logo]()
$329
This Orbitz deal was found by Cheapflights users on 8/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:57 pm -
Nonstop1h 35m
Deal found 8/11![Alaska Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:34 pm -
1 stop5h 56m
Deal found 8/11![United Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:00 am -
1 stop7h 45m
Deal found 8/10![United Airlines logo]()
$590
This Priceline deal was found by Cheapflights users on 8/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/232:19 pm -
Nonstop1h 36m
Deal found 8/10![Alaska Airlines logo]()
$594
Find flight deals from Seattle to Helena
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 August 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $217 (Alaska Airlines) |
One-way from | $154 (Delta) |
Popular in | September |
Cheapest in | January |
Average price | $338 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 August 12, 2026.
Use the filters below to find and compare flights from Seattle to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Sat 11/7
1:28 pm-4:04 pm
Nonstop1h 36m
Helena
Wed 11/11
4:41 pm-5:33 pm
Nonstop1h 52m
$217
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Tue 9/22
2:05 pm-4:41 pm
Nonstop1h 36m
Helena
Mon 9/28
5:18 pm-6:14 pm
Nonstop1h 56m
$337
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Thu 8/27
1:58 pm-4:34 pm
Nonstop1h 36m
Helena
Mon 8/31
5:11 pm-6:08 pm
Nonstop1h 57m
$387
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Wed 8/26
1:58 pm-4:34 pm
Nonstop1h 36m
Helena
Sun 8/30
5:11 pm-6:08 pm
Nonstop1h 57m
$387
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Wed 8/26
5:00 am-1:45 pm
1 stop7h 45m
Helena
Sun 8/30
6:15 am-11:44 am
1 stop6h 29m
$433
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Sat 8/22
5:30 am-12:15 pm
1 stop5h 45m
Helena
Wed 8/26
12:55 pm-6:44 pm
1 stop6h 49m
$437
Quickest round-trip
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Thu 10/15
2:14 pm-4:49 pm
Nonstop1h 35m
Helena
Sun 10/18
5:26 pm-6:18 pm
Nonstop1h 52m
$442
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Tue 9/22
5:45 am-12:17 pm
1 stop5h 32m
Helena
Sat 9/26
12:57 pm-6:55 pm
1 stop6h 58m
$459
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Tue 8/25
5:45 am-12:15 pm
1 stop5h 30m
Helena
Fri 8/28
12:55 pm-4:54 pm
1 stop4h 59m
$467
SeattleHelena
SEA Seattle/Tacoma Intl - HLN Helena
SEAHLN
Seattle/Tacoma Intl
Thu 8/27
2:34 pm-9:30 pm
1 stop5h 56m
Helena
Mon 8/31
2:35 pm-11:26 pm
2 stops9h 51m
$482
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Seattle 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 Seattle to Helena in August.
| 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 Seattle-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Helena flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-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 Seattle-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 Seattle to Helena
Have a flexible travel schedule? Discover the best time to fly to Helena from Seattle with our price prediction graph.
SEA-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.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Helena
Prices
Airlines
What is the cheapest time of day to fly from SEA to HLN?
Find hourly flight availability from Seattle to Helena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 12, 2026.
It’s optimal to fly from Seattle to Helena in the afternoon. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight in the morning.
How much does it cost to fly round-trip from Seattle to Helena?
Airfare is below average for this route at the moment.
Seattle to Helena flights typically cost between $338 and $402 in November.The cheapest round-trip price found within the last 5 days was $217 on Alaska Airlines (Nov 7-Nov 11).
Reviews of airlines servicing Helena
Get insights into the airlines that provide service to Helena. 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 Helena. Reviews last updated August 12, 2026.
See what other customers who have flown with Alaska Airlines from Seattle to Helena have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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Top airline flying from Seattle to Helena
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$197 | FlexibilityNo cancel fee | On-time75% |