Cheap flights from Roundup

View AU$214 flight on Mon, 1 June 2026Opens in a new window

Flight 1

Popular airlines from Roundup

  • Alaska Airlines

  • United

  • Delta

  • American Airlines

  • Air Canada

  • Lufthansa

  • British Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

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

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Roundup

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.

Alaska Airlines
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$519 Return, found 2 days ago
AU$519
Return
found 2 days ago
Select Alaska Airlines flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$519 found 2 days ago
Delta
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$525 Return, found 2 days ago
AU$525
Return
found 2 days ago
Select Delta flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$525 found 2 days ago
United
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$554 Return, found 2 days ago
AU$554
Return
found 2 days ago
Select United flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$554 found 2 days ago
Alaska Airlines
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$576 Return, found 2 days ago
AU$576
Return
found 2 days ago
Select Alaska Airlines flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$576 found 2 days ago
Delta
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$582 Return, found 2 days ago
AU$582
Return
found 2 days ago
Select Delta flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$582 found 2 days ago
Alaska Airlines
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$601 Return, found 2 days ago
AU$601
Return
found 2 days ago
Select Alaska Airlines flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$601 found 2 days ago
Delta
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$609 Return, found 2 days ago
AU$609
Return
found 2 days ago
Select Delta flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$609 found 2 days ago
United
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$610 Return, found 2 days ago
AU$610
Return
found 2 days ago
Select United flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$610 found 2 days ago
Alaska Airlines
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$614 Return, found 2 days ago
AU$614
Return
found 2 days ago
Select Alaska Airlines flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$614 found 2 days ago
American Airlines
Sun, 24 May - Mon, 1 June
BIL
Billings
LAX
Los Angeles
AU$903 Return, found 2 days ago
AU$903
Return
found 2 days ago
Select American Airlines flight, departing Sun, 24 May from Billings to Los Angeles, returning Mon, 1 June, priced at AU$903 found 2 days ago

Explore a world of travel with Expedia

*Available to Expedia members.