Cheap Flights from Hanoi (HAN) to Sidney (SDY)

Popular airlines from Noi Bai Intl. Airport (HAN) to Sidney, MT (SDY-Sidney-Richland Municipal)

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Frequently asked questions

How much does a flight from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY) cost?
Lock in a cheap one-way flight or cheap return flight from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY)?
Traveling in may help you find better deals, as it's the cheapest month for flights between HAN and SDY. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest HAN to SDY flight.
How many flights per day from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY)?
You'll have to book a flight with a layover when traveling from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from HAN to SDY?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a range of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY)?
To avoid possible delays on the Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY) last-minute?
Last-minute fares from HAN to SDY are usually more expensive. To secure the lowest prices, start searching for flights well in advance. That said, if you can play around with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a HAN to SDY flight and hotel package?
You'll generally save money by booking a HAN 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. After selecting your ideal accommodations and flights, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from Noi Bai Intl. Airport (HAN) to Sidney-Richland Municipal Airport (SDY)?
In most instances, you can reschedule or cancel your HAN to SDY flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need further details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Noi Bai Intl.
Destination airport
Sidney-Richland Municipal
Distance
7323 mi

Book with confidence

Book with confidence

Hanoi to Sidney Flights

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

 

The best time to book a flight from Hanoi to Sidney

Sunday is one of the best days to book for cheap flights from Hanoi 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 Hanoi 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 Hanoi 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 Hanoi 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 Hanoi 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.

 

Hanoi to Sidney Flights

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*Available to One Key members.