Flight to Lewis and Clark County

View S$792 flight on Thu, 22 Jan, 2026Opens in a new window

Popular airlines to Lewis and Clark County

  • United

    United

  • Delta

    Delta

  • Alaska Airlines

    Alaska Airlines

  • Hawaiian Airlines

    Hawaiian Airlines

  • Virgin Atlantic

    Virgin Atlantic

  • Air France

    Air France

  • KLM

    KLM

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Cheap round-trip flights to Lewis and Clark County

Prices were available within the past 7 days and start at S$792 for one-way flights and S$1,354 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,354 Return, found 21 hours ago
S$1,354
Return
found 21 hours ago
Select China Airlines flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,354 found 21 hours ago
EVA Airways
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,390 Return, found 21 hours ago
S$1,390
Return
found 21 hours ago
Select EVA Airways flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,390 found 21 hours ago
Air Canada
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,391 Return, found 21 hours ago
S$1,391
Return
found 21 hours ago
Select Air Canada flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,391 found 21 hours ago
Air Canada
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,398 Return, found 21 hours ago
S$1,398
Return
found 21 hours ago
Select Air Canada flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,398 found 21 hours ago
China Airlines
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,421 Return, found 21 hours ago
S$1,421
Return
found 21 hours ago
Select China Airlines flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,421 found 21 hours ago
China Airlines
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,424 Return, found 21 hours ago
S$1,424
Return
found 21 hours ago
Select China Airlines flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,424 found 21 hours ago
China Airlines
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,428 Return, found 21 hours ago
S$1,428
Return
found 21 hours ago
Select China Airlines flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,428 found 21 hours ago
China Airlines
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,431 Return, found 21 hours ago
S$1,431
Return
found 21 hours ago
Select China Airlines flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,431 found 21 hours ago
United
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,655 Return, found 21 hours ago
S$1,655
Return
found 21 hours ago
Select United flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,655 found 21 hours ago
Korean Air
Thu, 22 Jan - Mon, 26 Jan
BKK
Bangkok
HLN
Helena
S$1,964 Return, found 21 hours ago
S$1,964
Return
found 21 hours ago
Select Korean Air flight, departing Thu, 22 Jan from Bangkok to Helena, returning Mon, 26 Jan, priced at S$1,964 found 21 hours ago

Frequently asked questions

How do I find cheap flights to Lewis and Clark County that have flexible change policies?
By using our clever "No change fee" filter, that's how. Simply type in your dates and other details, click the "Search" button, then check the box directly under the "Flexible change policies" subheading (it's on the left). Expedia makes it simple to find cheap, flexible flights to Lewis and Clark County.
Which airlines fly to Lewis and Clark County?
With a good range of airlines operating flights into or near Lewis and Clark County, you're not short on choice:

  • Delta Air Lines - 60 flights to or near Lewis and Clark County each month, including 60 flights to Helena Regional Airport (HLN) per month.
  • United Airlines - 56 flights to or near Lewis and Clark County each month, including 56 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?
A helpful strategy for getting your hands on cheap tickets is to be flexible with your dates. Start by searching for your flight to Lewis and Clark County, then click on the "flexible dates" box for a list of prices for nearby days. Want another good tip? Book well ahead of time. For an idea of costs, S$1,354 was the lowest price for a flight to Lewis and Clark County in the last seven days.
How much is a flight to Lewis and Clark County?
You could have picked up a return air ticket to Lewis and Clark County from anywhere between S$1,354 and S$1,964 in the last seven days. For one-way journeys leaving from Bangkok (BKK), the lowest price during this time was S$792.
What are the most popular airports to fly into in Lewis and Clark County?
Start planning your Lewis and Clark County escape by securing one of the 147 flights a month to Helena Regional Airport (HLN). This is the region's main gateway.
When is the cheapest time to fly to Lewis and Clark County?
If you'd rather spend your holiday savings enjoying the delights of Lewis and Clark County rather than on flying there, jet off earlier in the week. The most cost-effective day to travel is usually Tuesday, with Monday coming in second. With many folks travelling on the weekend, Saturday typically has the costliest airfares.
How much is a plane ticket to Lewis and Clark County?
In the last seven days, plane fares to Lewis and Clark County cost between S$1,354 and S$1,964. The early bird catches the worm, so secure a terrific deal today.
What is the best time to go to Lewis and Clark County?
Helena, Lewis and Clark County's leading city, is a superb location to tour around at anytime. Not a fan of cooler weather? Then travel here from June 20 onward during the summer months, when temperatures range from 7ºC to 24ºC. March, May and July is when Helena is at its busiest.
What months are the cheapest to book a flight to Lewis and Clark County?
Snap up a ticket in February for the lowest-priced flights to Lewis and Clark County. December is normally the most expensive time to purchase a fare.

Book with confidence

Expedia offers flights to Lewis and Clark County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Lewis and Clark County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Travel information

Lewis and Clark County Flights Information

Airlines serving
Air Canada, China Airlines, United, Asiana Airlines, EVA Airways, JIN AIR, Delta, Philippine Airlines, All Nippon Airways, Korean Air
Roundtrip price
from S$1,354
Lewis and Clark County Flights Information

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