$94 Cheap Flights from Glendive (GDV) to Sidney (SDY)

View $94 flight on Fri, Aug 22, 2025Opens in a new window

Popular airlines from Glendive, MT (GDV-Dawson Community) to Sidney, MT (SDY-Sidney-Richland Municipal)

Cheap Flights from Glendive to Sidney (GDV-SDY)

Prices were available within the past 7 days and start at $94 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Glendive (GDV) to Sidney (SDY)
Origin airport
Dawson Community
Destination airport
Sidney-Richland Municipal
Distance
49 mi

Glendive to Sidney Flights

The cheapest times to fly from Glendive 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 Glendive to Sidney are during the month of . You can find some of the cheapest flights from Glendive to Sidney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Glendive to Sidney

Sunday is one of the best days to book for cheap flights from Glendive 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 Glendive 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 Glendive to Sidney in 2025. You can also book with separate airlines for your outbound and return journeys, from $94 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 Glendive 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 Glendive 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.

 

Frequently asked questions

How much does a flight from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY) cost?
Lock in a cheap one-way flight from $94 or cheap return flight from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY)?
The cheapest month to fly from GDV to SDY is , when demand is low. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY)?
To find the cheapest airline that'll fly you from GDV to SDY, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY)?
You'll need to hop on a flight with a layover when traveling from Dawson Community Airport (GDV) 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 find an option that works for you.
What day of the week has the most flights from GDV to SDY?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY)?
Opt for a flight from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY) last-minute?
Booking your plane ticket from GDV to SDY right before your journey is usually more expensive. However, if there's some wiggle room with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a GDV to SDY flight and hotel package?
You can save money by securing a GDV 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 chosen your preferred flights and accommodations, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Dawson Community Airport (GDV) to Sidney-Richland Municipal Airport (SDY)?
Typically, you can reschedule or cancel your GDV to SDY flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further details, head to our Customer Service portal.

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*Available to One Key members.