Cheap Flights from Augusta (AGS) to Sidney (SDY)

Popular airlines from Augusta Regional Airport (AGS) to Sidney, MT (SDY-Sidney-Richland Municipal)

Frequently asked questions

How much does a flight from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY) cost?
Snag a cheap one-way flight or cheap return flight from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY)?
is the cheapest month to fly from AGS to SDY. Timing your trip outside of the busy season is often the key to finding a great deal.
What is the cheapest airline that flies from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY)?
To find the cheapest airline that'll fly you from AGS to SDY, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY)?
You'll need to catch a flight with a layover if you're traveling from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from AGS to SDY?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY)?
To arrive at Sidney-Richland Municipal Airport (SDY) on schedule, opt for a flight that takes off from Augusta Regional Airport (AGS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY) last-minute?
Booking your ticket from AGS to SDY right before your trip is typically more expensive. However, if there's some wiggle room with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an AGS to SDY flight and hotel package?
You'll generally save money by securing an AGS to SDY flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your preferred flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Augusta Regional Airport (AGS) to Sidney-Richland Municipal Airport (SDY)?
In most instances, you can modify or cancel your AGS to SDY flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like more details, visit our Customer Service portal.

Travel information

Origin airport
Augusta Regional
Destination airport
Sidney-Richland Municipal
Distance
1520 mi

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Augusta to Sidney Flights

The cheapest times to fly from Augusta to Sidney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Augusta to Sidney are during the month of . You can find some of the cheapest flights from Augusta to Sidney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Augusta to Sidney

Sunday is one of the best days to book for cheap flights from Augusta to Sidney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Augusta to Sidney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Augusta to Sidney in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Augusta to Sidney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Augusta to Sidney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

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

 

Augusta to Sidney Flights

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*Available to One Key members.