A dilapidated wooden cabin surrounded by dense forest.

CA $183 Cheap Flight to Lewis and Clark County

View CA $183 flight on Wed, Aug 26, 2026Opens in a new window

Popular airlines to Lewis and Clark County

  • Alaska Airlines

  • United

  • Delta

  • KLM

  • Air France

  • Virgin Atlantic

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How much is the cheapest flight to Lewis and Clark County?

Prices were available within the past 7 days and start at CA $183 for one-way flights and CA $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Sep 5 - Sat, Sep 12
SEA
Seattle
HLN
Helena
CA $280 Roundtrip, found 16 hours ago
CA $280
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Seattle to Helena, returning Sat, Sep 12, priced at CA $280 found 16 hours ago
Alaska Airlines
Thu, Sep 3 - Sun, Sep 6
SEA
Seattle
HLN
Helena
CA $372 Roundtrip, found 16 hours ago
CA $372
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Thu, Sep 3 from Seattle to Helena, returning Sun, Sep 6, priced at CA $372 found 16 hours ago
Alaska Airlines
Sat, Sep 5 - Sat, Sep 12
SEA
Seattle
HLN
Helena
CA $380 Roundtrip, found 16 hours ago
CA $380
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Seattle to Helena, returning Sat, Sep 12, priced at CA $380 found 16 hours ago
Alaska Airlines
Sat, Sep 5 - Sat, Sep 12
SEA
Seattle
HLN
Helena
CA $381 Roundtrip, found 16 hours ago
CA $381
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Seattle to Helena, returning Sat, Sep 12, priced at CA $381 found 16 hours ago
Alaska Airlines
Sat, Sep 5 - Sat, Sep 12
SEA
Seattle
HLN
Helena
CA $415 Roundtrip, found 16 hours ago
CA $415
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Seattle to Helena, returning Sat, Sep 12, priced at CA $415 found 16 hours ago
Delta
Fri, Nov 20 - Sat, Dec 5
DTW
Detroit
HLN
Helena
CA $467 Roundtrip, found 16 hours ago
CA $467
Roundtrip
found 16 hours ago
Select Delta flight, departing Fri, Nov 20 from Detroit to Helena, returning Sat, Dec 5, priced at CA $467 found 16 hours ago
Alaska Airlines
Thu, Sep 3 - Sun, Sep 6
SEA
Seattle
HLN
Helena
CA $472 Roundtrip, found 16 hours ago
CA $472
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Thu, Sep 3 from Seattle to Helena, returning Sun, Sep 6, priced at CA $472 found 16 hours ago
Delta
Tue, Nov 3 - Sat, Nov 14
DTW
Detroit
HLN
Helena
CA $474 Roundtrip, found 1 day ago
CA $474
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 3 from Detroit to Helena, returning Sat, Nov 14, priced at CA $474 found 1 day ago
Alaska Airlines
Thu, Sep 3 - Sun, Sep 6
SEA
Seattle
HLN
Helena
CA $475 Roundtrip, found 16 hours ago
CA $475
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Thu, Sep 3 from Seattle to Helena, returning Sun, Sep 6, priced at CA $475 found 16 hours ago
United
Sat, Oct 17 - Thu, Oct 29
DTW
Detroit
HLN
Helena
CA $595 Roundtrip, found 16 hours ago
CA $595
Roundtrip
found 16 hours ago
Select United flight, departing Sat, Oct 17 from Detroit to Helena, returning Thu, Oct 29, priced at CA $595 found 16 hours ago

Trending flights to Lewis and Clark County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep 22 - Tue, Sep 29
YVR
Vancouver
HLN
Helena
CA $650 Roundtrip, found 16 hours ago
CA $650
Roundtrip
found 16 hours ago
Select Delta flight, departing Tue, Sep 22 from Vancouver to Helena, returning Tue, Sep 29, priced at CA $650 found 16 hours ago

Frequently asked questions

How do I find cheap flights to Lewis and Clark County that have flexible change policies?
It's as easy as 1-2-3 with Expedia. Firstly, type in your preferred travel dates and click on the "Search" button. Next step? Check the "No change fee" box directly underneath the "Flexible change policies" subheading on the top left of your screen. Step 3. Reserve your cheap and flexible flight to Lewis and Clark County.
Which airlines fly to Lewis and Clark County?
When you're ready to lock in your seat to or near Lewis and Clark County, these well-known carriers look forward to welcoming you on board:

  • United Airlines - 60 flights to or near Lewis and Clark County each month, including 60 flights to Helena Regional Airport (HLN) per month.
  • Delta - 60 flights to or near Lewis and Clark County each month, including 60 flights to Helena Regional Airport (HLN) per month.
  • Alaska Airlines - 30 flights to or near Lewis and Clark County each month, including 30 flights to Helena Regional Airport (HLN) per month.

How can I find cheap tickets to Lewis and Clark County?
For an unbeatable deal to Lewis and Clark County, book well in advance. Also make use of Expedia's "flexible dates" link above your search results. This will list the cheapest prices for similar time frames. In the last seven days, CA $280 was the lowest price for a flight to Lewis and Clark County.
How much is a flight to Lewis and Clark County?
In the last seven days, round-trip flights to Lewis and Clark County sold for as low as CA $280 and reached a maximum of CA $1,420. For one-way trips taking off from Seattle (SEA), the cheapest seat during this time was CA $183.
What are the most popular airports to fly into in Lewis and Clark County?
Helena Regional Airport (HLN) is the main entrance point for people eager to visit Lewis and Clark County. Roughly 151 flights per month touch down here.
When is the cheapest time to fly to Lewis and Clark County?
Depart for Lewis and Clark County early on in the week and you'll usually be rewarded with more affordable fares. Tuesday is typically the cheapest day to fly out, closely followed by Monday. If you'd like to avoid the priciest flights, stay away from Saturdays.
How much is a plane ticket to Lewis and Clark County?
Fares to Lewis and Clark County varied from CA $280 to CA $1,420 in the last seven days. Normally, the earlier you book the bigger the bargain.
What months are the cheapest to book a flight to Lewis and Clark County?
February is the most affordable month to book a seat for your Lewis and Clark County escape. Tickets are at their most expensive during the festive month of December, so steer clear of this time if possible.

Book with confidence

Top Travel Tips for Flying to Lewis and Clark County

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At Expedia, we understand the importance of budget-friendly travel. That's why we are dedicated to bringing you the best deals on affordable and cheap flights from the UK to Lewis and Clark County. Experience the perfect balance between adventure and savings with our competitively-priced roundtrip and one-way flight options.

Endless Flight Choices

With 20 different airlines flying to Lewis and Clark County, you have a world of options at your fingertips. Whether you're a spontaneous traveler or a meticulous planner, find the flights that suit your schedule and preferences seamlessly. Explore last-minute deals or plan ahead with ease.

Empowering Your Decision

We believe in putting you in control of your travel choices. Our extensive range of airline tickets to Lewis and Clark County caters to every budget, starting from the lowest price CA $183. Enjoy the freedom to choose the perfect flights that align with your needs and desires.

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Experience a hassle-free booking journey with Expedia. Whether you're seeking a red-eye flight, a direct route to a specific airport, or one-way flights to Lewis and Clark County, our streamlined booking process ensures convenience and efficiency. Download our mobile booking app to reserve your flights anytime, anywhere.

Your Adventure Awaits

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Top Travel Tips for Flying to Lewis and Clark County

Travel information

Lewis and Clark County Flights Information

Airlines serving
Alaska Airlines, Delta, United, WestJet
Roundtrip price
from CA $280
Lewis and Clark County Flights Information
*Available to Expedia members.