Cheap flights from Lewis and Clark County

View AU$214 flight on Wed, 22 Oct 2025Opens in a new window

Popular airlines from Lewis and Clark County

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

  • Hawaiian Airlines

    Hawaiian Airlines

  • Korean Air

    Korean Air

  • Air France

    Air France

  • Virgin Atlantic

    Virgin Atlantic

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from 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
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$428 Return, found 10 hours ago
AU$428
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$428 found 10 hours ago
Delta
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$474 Return, found 10 hours ago
AU$474
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$474 found 10 hours ago
Delta
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$482 Return, found 10 hours ago
AU$482
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$482 found 10 hours ago
Delta
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$489 Return, found 10 hours ago
AU$489
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$489 found 10 hours ago
Delta
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$528 Return, found 10 hours ago
AU$528
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$528 found 10 hours ago
United
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$535 Return, found 10 hours ago
AU$535
Return
found 10 hours ago
Select United flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$535 found 10 hours ago
Delta
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$543 Return, found 10 hours ago
AU$543
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$543 found 10 hours ago
Delta
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$558 Return, found 10 hours ago
AU$558
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$558 found 10 hours ago
Delta
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$574 Return, found 10 hours ago
AU$574
Return
found 10 hours ago
Select Delta flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$574 found 10 hours ago
Alaska Airlines
Wed, 22 Oct - Wed, 29 Oct
HLN
Helena
LAS
Las Vegas
AU$707 Return, found 10 hours ago
AU$707
Return
found 10 hours ago
Select Alaska Airlines flight, departing Wed, 22 Oct from Helena to Las Vegas, returning Wed, 29 Oct, priced at AU$707 found 10 hours ago
*Available to Expedia members.