Cheap Flights from Gap (GAT) to Sidney (SDY)

Popular airlines from Gap (GAT-Tallard) to Sidney, MT (SDY-Sidney-Richland Municipal)

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Frequently asked questions

How much does a flight from Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY) cost?
Get a cheap one-way flight or cheap return flight from Gap (GAT-Tallard) 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 Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY)?
is the cheapest month to fly from GAT to SDY. Planning your trip for the off-season is often the key to landing a great deal.
What is the cheapest airline that flies from Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest GAT to SDY flight.
How many flights per day from Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY)?
Direct flights from Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GAT to SDY?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY)?
To touch down at Sidney-Richland Municipal Airport (SDY) without delays, pick a flight that takes off from Gap (GAT-Tallard) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY) last-minute?
Last-minute fares from GAT to SDY are generally more expensive. To lock in the lowest rates, start searching for flights ahead of time. That said, if you're flexible with your travel plans, you may land a cheap ticket just before your departure.
Is it cheaper to book a GAT to SDY flight and hotel package?
Compared with arranging flights and hotels separately, booking a GAT to SDY flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the stress out of travel planning. Simply secure your flights and choose from our wide range of hotels, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Gap (GAT-Tallard) to Sidney-Richland Municipal Airport (SDY)?
You can usually cancel or reschedule your GAT to SDY flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Tallard
Destination airport
Sidney-Richland Municipal
Distance
4793 mi

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Gap to Sidney Flights

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

 

The best time to book a flight from Gap to Sidney

Sunday is one of the best days to book for cheap flights from Gap 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 Gap 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 Gap to Sidney in 2026. 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 Gap 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 Gap 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.

 

Gap to Sidney Flights

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*Available to One Key members.