Cheap Flights to St. Regis, MT

Popular airlines to St. Regis

Find the cheapest month to fly from Columbus (CMH) to Missoula (MSO)

January is typically the cheapest month to fly

From $324 - $1,031 per traveler.

Graph displaying average flight prices per month

Tips to find the cheapest flights to St. Regis

The cheapest day to fly

Get started finding a cheap flight to St. Regis on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

is the cheapest month to fly to St. Regis. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to St. Regis. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to St. Regis, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to St. Regis

The lowest price for round-trip flights to St. Regis in 2025 starts from , while one-way tickets start from . Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to St. Regis. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to St. Regis

are just some of the airlines that can typically offer cheap tickets to St. Regis. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to St. Regis and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for St. Regis, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to St. Regis. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your St. Regis plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to St. Regis

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to St. Regis.

Stopover savings

The cheapest tickets to St. Regis are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to St. Regis. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to St. Regis for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to St. Regis. Simply download the free Expedia app to your smart device and activate St. Regis flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to St. Regis. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

What month is the cheapest to fly to St. Regis?
The cheapest month for flights to St. Regis is usually August *. Launch your travel plans without spending a fortune by flying when fares are at their lowest. *Cheapest month to fly is based on the month with the cheapest flight found on Expedia.com in the next 330 days.
Which US cities have the cheapest flights to St. Regis?
Land cheap flights to St. Regis from Seattle, Denver and Salt Lake City. These cities usually offer the lowest fares to this unique destination. But bear in mind that stopovers, seasonality and demand will also have an influence on rates, so stay flexible and book when you see a bargain.
Which US cities fly direct to St. Regis?
There are 16 US destinations that you can fly to St. Regis directly from. Explore your options by using the "Direct flights only" box on Expedia and find the ideal starting point for your trip. Here are several of the top cities to set off from:

  • Seattle
  • Denver
  • Salt Lake City
  • Portland
  • Boise

How to find a cheap flight to St. Regis?
To snag cheap flights to St. Regis, book early or travel during the off-season months of February and November. Like another tip? Jet off on a Thursday and save around 16% on average compared to traveling on a Sunday.* Opt to receive price alerts on the Expedia app and we'll get in touch as soon as your fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to St. Regis?
You can find awesome deals on last-minute flights to St. Regis, especially if your travel plans are flexible. Consider departing from a different hub, tweaking your trip dates or choosing an alternative carrier to get a cheap flight to St. Regis.
How far in advance should I book a flight to St. Regis?
Lock in your flight to St. Regis two to four months ahead if you're taking off from an international destination. For domestic travel, the recommendation is around 28 days in advance. Better deals and a wider variety of travel dates, schedules and seating options are some of the great reasons to book early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to St. Regis?
You can generally get cheap flights to St. Regis on Sundays. You'll save around 8% on average compared to booking on a Friday, which is often the most expensive day to book.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to St. Regis?
Take your pick of these quality airlines that have flights to St. Regis:

  • Alaska Airlines - 785 flights to St. Regis each month, including 663 flights to Spokane Intl. Airport (GEG) per month.
  • Delta Air Lines - 645 flights to St. Regis each month, including 528 flights to Spokane Intl. Airport (GEG) per month.

Can I save money by booking a St. Regis trip package?
Book a St. Regis flight and hotel package deal on Expedia, and you can benefit from significant savings. It's easy to bundle your flight and hotel, and you can add tours and car rentals to create your own personalized St. Regis break. Plus, there's nothing like the convenience of booking everything in one place.
Can I change or cancel my flight to St. Regis?
It's usually possible to change or cancel your flight to St. Regis. Many airlines let you cancel flights for free within 24 hours of making your booking. However, some flights are non-refundable, and airlines may issue you credit for a future flight instead of a direct refund. To get cheap flights to St. Regis with flexible change policies, select the "Changes included" or "No cancel fee" filters during your search. Want more details? Visit our Customer Service Portal.
Flights to St. Regis information
Destination airport
Missoula Intl.
Destination airport IATA code
MSO
Destination city name
Missoula
Roundtrip price
$132

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*Available to One Key members.