$340 Cheap Flights from Mount Isa (ISA) to Cairns (CNS)

View $340 flight on Fri, Nov 21, 2025Opens in a new window

Popular airlines from Mount Isa, QLD (ISA) to Cairns Intl. Airport (CNS)

Cheap Flights from Mount Isa to Cairns (ISA-CNS)

Prices were available within the past 7 days and start at $340 for one-way flights and $680 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qantas Airways
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$680 Roundtrip, found 18 hours ago
$680
Roundtrip
found 18 hours ago
Select Qantas Airways flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $680 found 18 hours ago
Qantas Airways
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$691 Roundtrip, found 18 hours ago
$691
Roundtrip
found 18 hours ago
Select Qantas Airways flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $691 found 18 hours ago
Qantas Airways
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$725 Roundtrip, found 18 hours ago
$725
Roundtrip
found 18 hours ago
Select Qantas Airways flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $725 found 18 hours ago
Qantas Airways
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$736 Roundtrip, found 18 hours ago
$736
Roundtrip
found 18 hours ago
Select Qantas Airways flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $736 found 18 hours ago
Virgin Australia
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$805 Roundtrip, found 18 hours ago
$805
Roundtrip
found 18 hours ago
Select Virgin Australia flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $805 found 18 hours ago
Virgin Australia
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$809 Roundtrip, found 18 hours ago
$809
Roundtrip
found 18 hours ago
Select Virgin Australia flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $809 found 18 hours ago
Virgin Australia
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$816 Roundtrip, found 18 hours ago
$816
Roundtrip
found 18 hours ago
Select Virgin Australia flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $816 found 18 hours ago
Virgin Australia
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$820 Roundtrip, found 18 hours ago
$820
Roundtrip
found 18 hours ago
Select Virgin Australia flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $820 found 18 hours ago
Virgin Australia
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$851 Roundtrip, found 18 hours ago
$851
Roundtrip
found 18 hours ago
Select Virgin Australia flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $851 found 18 hours ago
Virgin Australia
Fri, Nov 21 - Tue, Nov 25
ISA
Mount Isa
CNS
Cairns
$855 Roundtrip, found 18 hours ago
$855
Roundtrip
found 18 hours ago
Select Virgin Australia flight, departing Fri, Nov 21 from Mount Isa to Cairns, returning Tue, Nov 25, priced at $855 found 18 hours ago
Flights from Mount Isa (ISA) to Cairns (CNS)
Origin airport
Mount Isa
Destination airport
Cairns Intl.
Airlines serving
Qantas Airways, Virgin Australia
Roundtrip price
$680
Distance
486 mi
Average flight time
3 hours 35 mins

Mount Isa to Cairns Flights

The cheapest times to fly from Mount Isa to Cairns

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 Mount Isa to Cairns are during the month of November. You can find some of the cheapest flights from Mount Isa to Cairns with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Mount Isa to Cairns

Sunday is one of the best days to book for cheap flights from Mount Isa to Cairns: 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 Mount Isa to Cairns

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 Mount Isa to Cairns in 2025. You can also book with separate airlines for your outbound and return journeys, from $340 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 Mount Isa to Cairns 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 Mount Isa to Cairns 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 Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS) cost?
Get a cheap one-way flight from $340 or cheap return flight from $680 from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS) 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 Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
Flying in November is a good way to save, as it's the cheapest month for flights between ISA and CNS. You'll often find the lowest fares during off-peak months.
Which airlines fly direct from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
You can travel nonstop from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS) on a Rex Regional Express flight.
What is the cheapest airline that flies from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ISA to CNS flight.
How many flights per day from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
On average, you can choose from 5 direct flights every week from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS). For more flexibility, consider a flight with a layover. Simply enter your details on Expedia and then filter your search to show one or more stops.
What are the most popular departure times for flights from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
Flights between ISA and CNS are their busiest at 6 PM. If you'd like a quieter trip and possibly cheaper tickets, choose a departure outside the usual busy windows.
What day of the week has the most flights from ISA to CNS?
Jet off on a Friday if you're looking for the best selection of flights from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS).
What is the earliest flight from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
Hop on the earliest flight at around 6:20PM UTC+10, departing from Mount Isa Airport (ISA). You'll be in the air for about 2h, touching down at Cairns Intl. Airport (CNS) at approximately 8:20PM UTC+10.
How long does it take to fly from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
It takes about 2 hours to cover the 490 mi from ISA to CNS.
What is the best time to fly from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
Book a flight from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour 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.
What airports do you fly into for Cairns from Mount Isa Airport (ISA)?
Cairns Intl. Airport (CNS) is the only airport in Cairns with direct flights from Mount Isa Airport (ISA). Browse the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS) last-minute?
Last-minute bookings from ISA to CNS are typically more expensive. For the lowest rates, start looking for flights ahead of time. That being said, if you're flexible with your travel dates, it's possible to score a cheap fare just before your departure.
Is it cheaper to book an ISA to CNS flight and hotel package?
Securing an ISA to CNS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our wide range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Mount Isa Airport (ISA) to Cairns Intl. Airport (CNS)?
Typically, you can modify or cancel your ISA to CNS flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like more information, head to our Customer Service portal.

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*Available to One Key members.