Cheap flights to Lewis and Clark County

Popular airlines to Lewis and Clark County

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

  • Hawaiian Airlines

    Hawaiian Airlines

  • KLM

    KLM

  • Air France

    Air France

  • Virgin Atlantic

    Virgin Atlantic

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 15% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Popular cities in Lewis and Clark County

FlightsFlights

Helena

Helena

Cheap round-trip flights to Lewis and Clark County

Prices were available within the past 7 days and start at €801 for one-way flights and €884 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€884 Return, found 2 hours ago
€884
Return
found 2 hours ago
Select American Airlines flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €884 found 2 hours ago
American Airlines
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€897 Return, found 2 hours ago
€897
Return
found 2 hours ago
Select American Airlines flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €897 found 2 hours ago
Delta
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€902 Return, found 2 hours ago
€902
Return
found 2 hours ago
Select Delta flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €902 found 2 hours ago
Air France
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€923 Return, found 2 hours ago
€923
Return
found 2 hours ago
Select Air France flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €923 found 2 hours ago
KLM
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€927 Return, found 2 hours ago
€927
Return
found 2 hours ago
Select KLM flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €927 found 2 hours ago
Air France
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€934 Return, found 2 hours ago
€934
Return
found 2 hours ago
Select Air France flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €934 found 2 hours ago
KLM
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€987 Return, found 2 hours ago
€987
Return
found 2 hours ago
Select KLM flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €987 found 2 hours ago
Lufthansa
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€998 Return, found 2 hours ago
€998
Return
found 2 hours ago
Select Lufthansa flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €998 found 2 hours ago
Brussels Airlines
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€1,004 Return, found 2 hours ago
€1,004
Return
found 2 hours ago
Select Brussels Airlines flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €1,004 found 2 hours ago
Lufthansa
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€1,008 Return, found 2 hours ago
€1,008
Return
found 2 hours ago
Select Lufthansa flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €1,008 found 2 hours ago

About Lewis and Clark County

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.

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, €884 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 €884 and €1,183 in the last seven days. For one-way journeys leaving from Dublin (DUB), the lowest price during this time was €801.
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.
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 €884 and €1,183. 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.

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.

American Airlines
Tue, 9 Sep - Sat, 13 Sep
DUB
Dublin
HLN
Helena
€884 Return, found 2 hours ago
€884
Return
found 2 hours ago
Select American Airlines flight, departing Tue, 9 Sep from Dublin to Helena, returning Sat, 13 Sep, priced at €884 found 2 hours ago
*Available to Expedia members.