Title: $141 Cheap flights from Helena to Pasco (HLN to PSC) - Expedia.com ![blue bridge over Columbia river in Tri-cities Washington state](https://images.trvl-media.com/place/2878/9049bec3-53f1-48e4-9f2a-258938982d2f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/2878/9049bec3-53f1-48e4-9f2a-258938982d2f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $141 Cheap Flights from Helena (HLN) to Pasco (PSC) [View $141 flight on Sun, May 17, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:HLN,to:PSC,departure:5/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:140.20&airProductToken=AQpuCjUIxJgBEgQzOTAxGOdqIPISKKGcjQMw9JyNAzhFQABYAWoJTUFJTkJBU0lDcghYQVZTQTBCQwo1CMSYARIEMzY5NBjyEiDPFCjGnY0DMLOejQM4RUABWAFqCU1BSU5CQVNJQ3IIWEFWU0EwQkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Helena, MT (HLN-Helena Regional) to Tri-Cities Airport (PSC) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:HLN,to:PSC,departure:3/3/2026TANYT&leg2=from:PSC,to:HLN,departure:3/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:HLN,to:PSC,departure:3/3/2026TANYT&leg2=from:PSC,to:HLN,departure:3/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:HLN,to:PSC,departure:3/3/2026TANYT&leg2=from:PSC,to:HLN,departure:3/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Helena to Pasco (HLN-PSC) Prices were available within the past 7 days and start at $141 for one-way flights and $495 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Mar 2 - Fri, Mar 6 HLN Helena PSC Pasco $495 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:3/2/2026TANYT&leg2=from:PSC,to:HLN,departure:3/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:494.40&airProductToken=AQplCjEIwaYBEgQyMDQwGOdqIJIBKOjKhgMw1suGAzhYQABYAWoFU0FWRVJyCFNINE9BU0JOCjAIwaYBEgMyMTIYkgEgzxQo6cyGAzCnzYYDOFhAAVgBagVTQVZFUnIIU0g0T0FTQk4KZQowCMGmARIDNzk1GM8UIJIBKLn0hgMwhPWGAzhYQABYAWoFU0FWRVJyCFNINE9BU0JOCjEIwaYBEgQyMDQwGJIBIOdqKOH2hgMww_eGAzhYQAFYAWoFU0FWRVJyCFNINE9BU0JOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwDQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Mar 2 - Fri, Mar 6 HLN Helena PSC Pasco $515 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:3/2/2026TANYT&leg2=from:PSC,to:HLN,departure:3/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:514.40&airProductToken=AQplCjEIwaYBEgQyMDQwGOdqIJIBKOjKhgMw1suGAzhYQABYAWoFU0FWRVJyCFNINE9BU0JOCjAIwaYBEgMyMTIYkgEgzxQo6cyGAzCnzYYDOFhAAVgBagVTQVZFUnIIU0g0T0FTQk4KZgoxCMGmARIEMzAyNhjPFCCSASj48oYDMMTzhgM4WEAAWAFqBVNBVkVScghWSDRPQUpCTgoxCMGmARIEMjA0MBiSASDnaijh9oYDMMP3hgM4WEABWAFqBVNBVkVScghWSDRPQUpCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMA0) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Mar 2 - Fri, Mar 6 HLN Helena PSC Pasco $575 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:3/2/2026TANYT&leg2=from:PSC,to:HLN,departure:3/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:574.40&airProductToken=AQpjCjAIwaYBEgQyMDQwGOdqIJIBKOjKhgMw1suGAzhTQABYAWoETUFJTnIIU0g0T0FKTU4KLwjBpgESAzIxMhiSASDPFCjpzIYDMKfNhgM4U0ABWAFqBE1BSU5yCFNINE9BSk1OCmMKLwjBpgESAzc5NRjPFCCSASi59IYDMIT1hgM4U0AAWAFqBE1BSU5yCFNINE9BSk1OCjAIwaYBEgQyMDQwGJIBIOdqKOH2hgMww_eGAzhTQAFYAWoETUFJTnIIU0g0T0FKTU4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAN) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Mar 2 - Fri, Mar 6 HLN Helena PSC Pasco $584 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:3/2/2026TANYT&leg2=from:PSC,to:HLN,departure:3/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:583.41&airProductToken=AQpmCjEIwaYBEgQyMDQwGOdqIJIBKOjKhgMw1suGAzhYQABYAWoFU0FWRVJyCFNINE9BU0JOCjEIwaYBEgQzMDIwGJIBIM8UKKDOhgMw386GAzhYQAFYAWoFU0FWRVJyCFZINE9BVkJOCmUKMAjBpgESAzc5NRjPFCCSASi59IYDMIT1hgM4WEAAWAFqBVNBVkVScghTSDRPQVNCTgoxCMGmARIEMjA0MBiSASDnaijh9oYDMMP3hgM4WEABWAFqBVNBVkVScghTSDRPQVNCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMA0) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, Feb 24 - Tue, Mar 3 HLN Helena PSC Pasco $591 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:2/24/2026TANYT&leg2=from:PSC,to:HLN,departure:3/3/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:590.39&airProductToken=AQplCjEIwaYBEgQyMDQwGOdqIJIBKKiHhgMwloiGAzhYQABYAWoFU0FWRVJyCExIN09BSkJOCjAIwaYBEgMyMTIYkgEgzxQoqYmGAzDniYYDOFhAAVgBagVTQVZFUnIITEg3T0FKQk4KZgoxCMGmARIEMzAyNhjPFCCSASiY0YYDMOTRhgM4WEAAWAFqBVNBVkVScghTSDRPQVNCTgoxCMGmARIEMjA0MBiSASDnaiiB1YYDMOPVhgM4WEABWAFqBVNBVkVScghTSDRPQVNCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMA0) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Mar 2 - Fri, Mar 6 HLN Helena PSC Pasco $595 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:3/2/2026TANYT&leg2=from:PSC,to:HLN,departure:3/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:594.40&airProductToken=AQpjCjAIwaYBEgQyMDQwGOdqIJIBKOjKhgMw1suGAzhTQABYAWoETUFJTnIIU0g0T0FKTU4KLwjBpgESAzIxMhiSASDPFCjpzIYDMKfNhgM4U0ABWAFqBE1BSU5yCFNINE9BSk1OCmQKMAjBpgESBDMwMjYYzxQgkgEo-PKGAzDE84YDOFZAAFgBagRNQUlOcghWSDRPQUpNTgowCMGmARIEMjA0MBiSASDnaijh9oYDMMP3hgM4VkABWAFqBE1BSU5yCFZINE9BSk1OEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwDQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Mar 2 - Fri, Mar 6 HLN Helena PSC Pasco $604 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:3/2/2026TANYT&leg2=from:PSC,to:HLN,departure:3/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:603.41&airProductToken=AQpmCjEIwaYBEgQyMDQwGOdqIJIBKOjKhgMw1suGAzhYQABYAWoFU0FWRVJyCFNINE9BU0JOCjEIwaYBEgQzMDIwGJIBIM8UKKDOhgMw386GAzhYQAFYAWoFU0FWRVJyCFZINE9BVkJOCmYKMQjBpgESBDMwMjYYzxQgkgEo-PKGAzDE84YDOFhAAFgBagVTQVZFUnIIVkg0T0FKQk4KMQjBpgESBDIwNDAYkgEg52oo4faGAzDD94YDOFhAAVgBagVTQVZFUnIIVkg0T0FKQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAN) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Feb 24 - Tue, Mar 3 HLN Helena PSC Pasco $621 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:HLN,to:PSC,departure:2/24/2026TANYT&leg2=from:PSC,to:HLN,departure:3/3/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:620.40&airProductToken=AQpqCjMI1YIBEgQ1OTExGOdqIINpKKWGhgMwpYeGAzhWQABYAWoHRUNPTk9NWXIIVkFBN1BGRU4KMwjVggESBDE5MTMYg2kgzxQowoiGAzDiiYYDOFZAAVgBagdFQ09OT01ZcghWQUE3UEZFTgppCjII1YIBEgM0ODAYzxQgg2kojNGGAzCi0oYDOFNAAFgBagdFQ09OT01ZcghTQUE0QVFETgozCNWCARIENTM4OBiDaSDnaijY04YDMNjUhgM4U0ABWAFqB0VDT05PTVlyCFNBQTRBUUROEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### How much does a flight from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities) cost? ### What is the cheapest month to fly from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### Which airlines fly direct from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### What is the cheapest airline that flies from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### How do I find cheap flights from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### What is the best time to fly from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### What is the earliest flight from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### What are the most popular departure times for flights from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### How long does it take to fly from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### Can you fly business or first class from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ### How do I earn miles on a Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities) flight with Expedia? ### What airports do you fly into for Pasco from Helena Regional (HLN)? ### Is it cheaper to buy a plane ticket from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities) at the last minute? ### Is it cheaper to book a Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities) flight and hotel package? ### Can I cancel or change the date of my flight from Helena, MT (HLN-Helena Regional) to Pasco, WA (PSC-Tri-Cities)? ## Travel information | Origin airport | Helena Regional | | ------------------- | ------------------------------ | | Destination airport | Tri-Cities | | Airlines serving | Alaska Airlines, Delta, United | | Roundtrip price | $494 | | Distance | 340 mi | ## Book with confidence # 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 March. 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 2026\. You can also book with separate airlines for your outbound and return journeys, from $141 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](https://www.expedia.com/package-deals). 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. \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - Lodging - Flights - [Pasco Hotels ](https://www.expedia.com/Pasco-Hotels.d2878.Travel-Guide-Hotels) - [Flights to Pasco ](https://www.expedia.com/Cheap-Flights-To-Pasco.d2878.Travel-Guide-Flights) - [Phoenix to Pasco ](https://www.expedia.com/lp/flights/178298/2878/phoenix-to-pasco) - [Dallas to Pasco ](https://www.expedia.com/lp/flights/178253/2878/dallas-to-pasco) \*Available to One Key members.