$119 Cheap Flights from Helena (HLN) to Pasco (PSC)

View $119 flight on Tue, Sep 30, 2025Opens in a new window

Popular airlines from Helena, MT (HLN-Helena Regional) to Tri-Cities Airport (PSC)

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Cheap Flights from Helena to Pasco (HLN-PSC)

Prices were available within the past 7 days and start at $119 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Nov 15 - Sat, Dec 6
HLN
Helena
PSC
Pasco
$238 Roundtrip, found 2 days ago
$238
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Helena to Pasco, returning Sat, Dec 6, priced at $238 found 2 days ago
Delta
Sat, Nov 8 - Wed, Nov 12
HLN
Helena
PSC
Pasco
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 8 from Helena to Pasco, returning Wed, Nov 12, priced at $239 found 1 day ago
Delta
Wed, Nov 12 - Sat, Nov 15
HLN
Helena
PSC
Pasco
$244 Roundtrip, found 1 hour ago
$244
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Nov 12 from Helena to Pasco, returning Sat, Nov 15, priced at $244 found 1 hour ago
Delta
Tue, Nov 4 - Sat, Nov 15
HLN
Helena
PSC
Pasco
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from Helena to Pasco, returning Sat, Nov 15, priced at $249 found 1 day ago
Hawaiian Airlines
Tue, Nov 4 - Tue, Nov 18
HLN
Helena
PSC
Pasco
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Nov 4 from Helena to Pasco, returning Tue, Nov 18, priced at $250 found 1 day ago
Delta
Sat, Oct 11 - Tue, Oct 21
HLN
Helena
PSC
Pasco
$259 Roundtrip, found 5 days ago
$259
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Oct 11 from Helena to Pasco, returning Tue, Oct 21, priced at $259 found 5 days ago
Delta
Tue, Nov 11 - Sat, Nov 15
HLN
Helena
PSC
Pasco
$264 Roundtrip, found 2 days ago
$264
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Nov 11 from Helena to Pasco, returning Sat, Nov 15, priced at $264 found 2 days ago
Hawaiian Airlines
Wed, Oct 1 - Sat, Oct 18
HLN
Helena
PSC
Pasco
$267 Roundtrip, found 5 days ago
$267
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Oct 1 from Helena to Pasco, returning Sat, Oct 18, priced at $267 found 5 days ago
Alaska Airlines
Sat, Nov 22 - Tue, Dec 9
HLN
Helena
PSC
Pasco
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Nov 22 from Helena to Pasco, returning Tue, Dec 9, priced at $268 found 2 days ago
United
Wed, Nov 12 - Sat, Nov 15
HLN
Helena
PSC
Pasco
$276 Roundtrip, found 1 hour ago
$276
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Nov 12 from Helena to Pasco, returning Sat, Nov 15, priced at $276 found 1 hour ago

Alternative airports near Pasco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tri-Cities PSC. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $423
PSC
Tri-Cities
CheapestClosest
Average driving time to city center4 min
Flights from $423
Flights from Helena (HLN) to Pasco (PSC)
Origin airport
Helena Regional
Destination airport
Tri-Cities
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$238
Distance
340 mi

Helena to Pasco Flights

The cheapest times to fly from Helena to Pasco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Helena to Pasco are during the month of November. You can find some of the cheapest flights from Helena to Pasco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helena to Pasco

Sunday is one of the best days to book for cheap flights from Helena to Pasco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Helena to Pasco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Helena to Pasco in 2025. You can also book with separate airlines for your outbound and return journeys, from $119 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Helena to Pasco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Helena to Pasco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC) cost?
Snag a cheap one-way flight from $119 or cheap return flight from $238 from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC)?
November is the cheapest month to fly from HLN to PSC. Traveling during quieter months is often the key to finding a great deal.
What is the cheapest airline that flies from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from HLN to PSC. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC)?
You'll need to hop on a flight with a layover if you're traveling from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from HLN to PSC?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC)?
To reach Tri-Cities Airport (PSC) on time, select a flight that leaves from Helena Regional Airport (HLN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC) last-minute?
Booking your plane ticket from HLN to PSC just before your journey is typically more expensive. However, if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a HLN to PSC flight and hotel package?
You can save money by securing a HLN to PSC flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal accommodations and flights, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Helena Regional Airport (HLN) to Tri-Cities Airport (PSC)?
Typically, you're able to cancel or reschedule your HLN to PSC flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want more information, visit our Customer Service portal.

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*Available to One Key members.