$154+ Cheap flights from Helena (HLN) to Washington
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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SEA
Dec 7 — Dec 141
Round-trip
1 adult, Economy
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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
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Cheapest flights from Helena to WashingtonExplore the most affordable flight options available from Helena to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 7, 2026.
Explore the most affordable flight options available from Helena to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 7, 2026.
This Delta deal was found by Cheapflights users on 11/5. 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 12/51:10 pm -
1 stop6h 37m
Sat 12/125:30 am -
1 stop6h 00m
Deal found 11/5![Delta logo]()
$187
This Priceline deal was found by Cheapflights users on 11/4. 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.
Tue 12/84:49 pm -
Nonstop1h 56m
Tue 12/151:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/124:49 pm -
Nonstop1h 56m
Tue 12/151:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 11/5. 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 12/101:10 pm -
1 stop4h 45m
Sun 12/135:30 am -
1 stop6h 00m
Deal found 11/5![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/114:49 pm -
Nonstop1h 56m
Tue 12/151:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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 12/104:49 pm -
Nonstop1h 56m
Sun 12/131:35 pm -
Nonstop1h 37m
Deal found 11/3![Alaska Airlines logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/104:49 pm -
Nonstop1h 56m
Mon 12/141:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 11/4. 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 12/71:10 pm -
1 stop4h 45m
Tue 12/85:30 am -
1 stop6h 00m
Deal found 11/4![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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 12/54:49 pm -
Nonstop1h 56m
Sat 12/121:35 pm -
Nonstop1h 37m
Deal found 11/5![Alaska Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 11/5. 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 12/101:10 pm -
1 stop4h 45m
Mon 12/145:30 am -
1 stop6h 00m
Deal found 11/5![Delta logo]()
$303
This Alaska Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/204:18 pm -
Nonstop1h 52m
Fri 12/251:02 pm -
Nonstop1h 39m
Deal found 11/6![Alaska Airlines logo]()
$307
Best flights from Helena to WashingtonDiscover carefully curated flight deals from Helena to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 7, 2026.
Discover carefully curated flight deals from Helena to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 7, 2026.
This Priceline deal was found by Cheapflights users on 11/2. 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.
Tue 1/195:08 pm -
Nonstop1h 50m
Tue 1/261:56 pm -
Nonstop1h 35m
Deal found 11/2![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 11/3. 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 12/11:10 pm -
1 stop4h 45m
Tue 12/85:30 am -
1 stop6h 00m
Deal found 11/3![Delta logo]()
$312
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:35 pm -
1 stop7h 46m
Sun 12/135:05 am -
1 stop7h 47m
Deal found 11/6![United Airlines logo]()
$357
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/104:49 pm -
Nonstop1h 56m
Mon 12/141:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/114:49 pm -
Nonstop1h 56m
Mon 12/141:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 11/5. 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 1/257:10 am -
1 stop6h 20m
Fri 1/295:35 am -
1 stop5h 57m
Deal found 11/5![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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 12/54:49 pm -
Nonstop1h 56m
Sat 12/121:35 pm -
Nonstop1h 37m
Deal found 11/5![Alaska Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 11/3. 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 12/101:10 pm -
1 stop4h 45m
Sun 12/135:30 am -
1 stop6h 00m
Deal found 11/3![Delta logo]()
$338
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:35 pm -
2 stops10h 09m
Fri 12/115:05 am -
1 stop7h 47m
Deal found 11/6![United Airlines logo]()
$378
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:03 am -
1 stop6h 33m
Fri 12/115:30 am -
1 stop6h 00m
Deal found 11/6![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/101:10 pm -
1 stop4h 45m
Mon 12/145:30 am -
1 stop6h 00m
Deal found 11/6![Delta logo]()
$373
Last-minute flights from Helena to WashingtonDiscover last-minute flight deals from Helena to Washington. Data last updated November 7, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to Washington. Data last updated November 7, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/5. 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 12/51:10 pm -
1 stop6h 37m
Sat 12/125:30 am -
1 stop6h 00m
Deal found 11/5![Delta logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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 12/54:49 pm -
Nonstop1h 56m
Sat 12/121:35 pm -
Nonstop1h 37m
Deal found 11/5![Alaska Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 11/4. 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 12/71:10 pm -
1 stop4h 45m
Tue 12/85:30 am -
1 stop6h 00m
Deal found 11/4![Delta logo]()
$257
This Priceline deal was found by Cheapflights users on 11/4. 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.
Tue 12/84:49 pm -
Nonstop1h 56m
Tue 12/151:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 11/5. 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 12/101:10 pm -
1 stop4h 45m
Sun 12/135:30 am -
1 stop6h 00m
Deal found 11/5![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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 12/104:49 pm -
Nonstop1h 56m
Mon 12/141:35 pm -
Nonstop1h 37m
Deal found 11/3![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 11/5. 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 12/101:10 pm -
1 stop4h 45m
Mon 12/145:30 am -
1 stop6h 00m
Deal found 11/5![Delta logo]()
$303
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/114:49 pm -
Nonstop1h 56m
Tue 12/151:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/124:49 pm -
Nonstop1h 56m
Tue 12/151:35 pm -
Nonstop1h 37m
Deal found 11/4![Alaska Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/204:18 pm -
Nonstop1h 52m
Fri 12/251:02 pm -
Nonstop1h 39m
Deal found 11/6![Alaska Airlines logo]()
$307
One-way flights from Helena to WashingtonSearch for one-way flight options from Helena to Washington. Find affordable one-way fares based on user searches. Data last updated November 7, 2026.
Search for one-way flight options from Helena to Washington. Find affordable one-way fares based on user searches. Data last updated November 7, 2026.
This Priceline deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/114:49 pm -
Nonstop1h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Alaska Airlines logo]()
$154
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:03 am -
1 stop6h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Delta logo]()
$164
This Priceline deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:49 pm -
Nonstop1h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Alaska Airlines logo]()
$224
This Delta deal was found by Cheapflights users on 11/3. 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 3/1212:50 pm -
1 stop5h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Delta logo]()
$229
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:10 pm -
1 stop6h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 11/5. 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 11/191:07 pm -
1 stop6h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:35 pm -
2 stops10h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![United Airlines logo]()
$309
This Priceline deal was found by Cheapflights users on 11/3. 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.
Fri 3/124:08 pm -
Nonstop1h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Alaska Airlines logo]()
$324
This Priceline deal was found by Cheapflights users on 11/5. 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.
Thu 11/194:41 pm -
Nonstop1h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Alaska Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:35 pm -
2 stops10h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![United Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/196:28 am -
3 stops13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![United Airlines logo]()
$1,255
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 3/122:30 pm -
2 stops10h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![United Airlines logo]()
$1,486
Find flight deals from Helena to Washington
Keep the following information in mind while searching for Helena to Washington flight deals. Data was last updated November 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $187 (Delta) |
One-way from | $154 (Priceline) |
Popular in | November |
Cheapest in | February |
Average price | $528 |
Good round-trip deal | $506 or less |
Good one-way deal | $239 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Helena to Washington 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 7,457,451 searches. Data last updated November 7, 2026.
Use the filters below to find and compare flights from Helena to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Fri 12/11
7:03 am-12:36 pm
1 stop6h 33m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Tue 1/19
5:08 pm-5:58 pm
Nonstop1h 50m
Seattle/Tacoma Intl
Tue 1/26
1:56 pm-4:31 pm
Nonstop1h 35m
$207
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Fri 3/12
12:50 pm-4:53 pm
1 stop5h 03m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$229
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Tue 12/1
1:10 pm-6:47 pm
1 stop6h 37m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$239
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Thu 12/10
4:49 pm-5:45 pm
Nonstop1h 56m
Seattle/Tacoma Intl
Mon 12/14
1:35 pm-4:12 pm
Nonstop1h 37m
$247
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Fri 12/11
4:49 pm-5:45 pm
Nonstop1h 56m
Seattle/Tacoma Intl
Mon 12/14
1:35 pm-4:12 pm
Nonstop1h 37m
$247
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Thu 11/19
1:07 pm-6:41 pm
1 stop6h 34m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$279
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Sat 12/5
4:49 pm-5:45 pm
Nonstop1h 56m
Seattle/Tacoma Intl
Sat 12/12
1:35 pm-4:12 pm
Nonstop1h 37m
$302
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Tue 12/1
1:10 pm-4:55 pm
1 stop4h 45m
Seattle/Tacoma Intl
Tue 12/8
5:30 am-12:30 pm
1 stop6h 00m
$312
Quickest round-trip
HelenaSeattle
HLN Helena - SEA Seattle/Tacoma Intl
HLNSEA
Helena
Fri 3/12
4:08 pm-4:55 pm
Nonstop1h 47m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$324
Showing 1-10 of 19 resultsSorted by cheapest first
Best time to book a flight from Helena to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Helena with our price prediction graph.
HLN-SEA
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 Helena to Washington
HLN-USWA
HLN-SEA
What is the cheapest month to book a flight from Helena to State of Washington?
Currently, February is the cheapest month in which you can book a flight from Helena to State of Washington (average of $147). Flying from Helena to State of Washington in November is currently the most expensive (average of $528). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from HLN to WA?
Find hourly flight availability from Helena to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 7, 2026.
When flying from Helena to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 53% versus a flight at noon.
How much does it cost to fly round-trip from Helena to State of Washington?
Airfare is below average for this route at the moment.
Helena to State of Washington flights typically cost between $357 and $528 in December.The cheapest round-trip price found within the last 5 days was $187 on Delta (Dec 5-Dec 12).
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated November 7, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines from Helena to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$239 | FlexibilityNo cancel fee | On-time75% |