Cheap Flights from Newcastle (NTL) to Sioux City (SUX)

Popular airlines from Newcastle, NSW (NTL-Williamtown) to Sioux City, IA (SUX-Sioux Gateway)

Frequently asked questions

How much does a flight from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX) cost?
Lock in a cheap one-way flight or cheap return flight from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between NTL and SUX. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest NTL to SUX flight.
How many flights per day from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX)?
You'll need to book a flight with a layover when traveling from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from NTL to SUX?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX)?
Book a flight from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time are on average 22% more likely to be canceled.**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 Williamtown Airport (NTL) to Sioux Gateway Airport (SUX) last-minute?
Booking your flight from NTL to SUX shortly before your trip is typically more expensive. But if there's some wiggle room with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a NTL to SUX flight and hotel package?
You can save money by securing a NTL to SUX 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 convenient place. After choosing your ideal flights and accommodations, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Williamtown Airport (NTL) to Sioux Gateway Airport (SUX)?
In most cases, you're able to cancel or reschedule your NTL to SUX flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more details, go to our Customer Service portal.

Travel information

Origin airport
Williamtown
Destination airport
Sioux Gateway
Distance
8743 mi

Book with confidence

Newcastle to Sioux City Flights

The cheapest times to fly from Newcastle to Sioux City

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 Newcastle to Sioux City are during the month of . You can find some of the cheapest flights from Newcastle to Sioux City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Newcastle to Sioux City

Sunday is one of the best days to book for cheap flights from Newcastle to Sioux City: 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 Newcastle to Sioux City

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 Newcastle to Sioux City 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 Newcastle to Sioux City 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 Newcastle to Sioux City 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.

 

Newcastle to Sioux City Flights

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*Available to One Key members.