Cheap flights from St. Regis

View AU$181 flight on Sun, 7 June 2026Opens in a new window

Popular airlines from St. Regis

  • Alaska Airlines

  • United

  • Delta

  • American Airlines

  • British Airways

  • KLM

  • Aeromexico

  • 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 St. Regis

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, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$400 Return, found 16 hours ago
AU$400
Return
found 16 hours ago
Select Alaska Airlines flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$400 found 16 hours ago
Alaska Airlines
Sun, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$498 Return, found 16 hours ago
AU$498
Return
found 16 hours ago
Select Alaska Airlines flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$498 found 16 hours ago
Delta
Sun, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$518 Return, found 16 hours ago
AU$518
Return
found 16 hours ago
Select Delta flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$518 found 16 hours ago
Delta
Sun, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$567 Return, found 16 hours ago
AU$567
Return
found 16 hours ago
Select Delta flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$567 found 16 hours ago
Alaska Airlines
Sun, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$568 Return, found 16 hours ago
AU$568
Return
found 16 hours ago
Select Alaska Airlines flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$568 found 16 hours ago
Alaska Airlines
Sun, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$596 Return, found 16 hours ago
AU$596
Return
found 16 hours ago
Select Alaska Airlines flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$596 found 16 hours ago
Delta
Sun, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$623 Return, found 16 hours ago
AU$623
Return
found 16 hours ago
Select Delta flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$623 found 16 hours ago
Alaska Airlines
Sun, 14 June - Sun, 21 June
MSO
Missoula
SEA
Seattle
AU$638 Return, found 16 hours ago
AU$638
Return
found 16 hours ago
Select Alaska Airlines flight, departing Sun, 14 June from Missoula to Seattle, returning Sun, 21 June, priced at AU$638 found 16 hours ago
United
Mon, 29 June - Wed, 29 July
MSO
Missoula
SFO
San Francisco
AU$735 Return, found 4 days ago
AU$735
Return
found 4 days ago
Select United flight, departing Mon, 29 June from Missoula to San Francisco, returning Wed, 29 July, priced at AU$735 found 4 days ago
American Airlines
Mon, 29 June - Wed, 29 July
MSO
Missoula
SFO
San Francisco
AU$928 Return, found 4 days ago
AU$928
Return
found 4 days ago
Select American Airlines flight, departing Mon, 29 June from Missoula to San Francisco, returning Wed, 29 July, priced at AU$928 found 4 days ago

Explore a world of travel with Expedia

*Available to Expedia members.