Cheap Flights to Yellowstone County from $55

January is the cheapest month to travel to Yellowstone County. There's less demand then, so fares are generally more affordable. Planning your trip outside of school and public holidays can also help you save.

Land cheap flights to Yellowstone County from Sidney, Denver and Salt Lake City. These cities usually offer the lowest fares to this much-loved destination. But keep in mind that stopovers, seasonality and demand will also have an influence on rates, so stay flexible and book when prices are right.

There are 12 US destinations that you can fly to Yellowstone County nonstop from. Compare your options by selecting the "Direct flights only" filter on Expedia and choose the best starting point for your trip. Here are some of the major cities to head out from:

• Sidney
• Denver
• Salt Lake City
• Seattle
• Glendive

Book early or look for a cheap flight to Yellowstone County during the off-season, such as November and December. Jetting off on a Thursday can also save you 16% on average compared to a Sunday departure.* The Expedia app makes it even easier to know exactly when to book. Just turn on the toggle for "Watch prices" and you'll receive an alert when there's a better deal.

*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.

Although booking in advance is typically the best way to save money, don't worry if your Yellowstone County trip is last minute. You can still find cheap flights to Yellowstone County, especially if your plans have some flexibility. Try switching up your trip dates, looking at different ticket types or flying out of another hub.

Book your flight to Yellowstone County two to four months ahead if you're visiting from an international destination. For domestic travel, the general guideline is 28 days in advance. Lower prices 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.

You'll save an average of 8% if you purchase tickets on a Sunday instead of Fridays, which tend to be the priciest day to book.* When it comes to snapping up a cheap flight to Yellowstone County, timing makes a difference.

*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.

When you're ready to lock in your airfare to Yellowstone County, these top carriers look forward to welcoming you on board:

• Cape Air - 395 flights to Yellowstone County each month, including 395 flights to Logan Intl. Airport (BIL) per month.
• Delta Air Lines - 117 flights to Yellowstone County each month, including 117 flights to Logan Intl. Airport (BIL) per month.
• United Airlines - 99 flights to Yellowstone County each month, including 99 flights to Logan Intl. Airport (BIL) per month.

It's possible to save hundreds of dollars if you secure a Yellowstone County, Montana flight and hotel package deal on Expedia. And you'll save time and hassle by having all your travel arrangements in the same place. Try bundling your hotel and flight with add-ons like car rentals and tours for your own customized Yellowstone County getaway.

It's often possible to cancel or change your flight to Yellowstone County. Many airlines let you cancel your flight for free within 24 hours of making your booking. However, some flights are non-refundable, and airlines may issue you a credit toward future flights in place of a direct refund. To get affordable flights to Yellowstone County with flexible change policies, pick the "Changes included" or "No cancel fee" filters during your search. Want more details? Head to our Customer Service Portal.