$696 Cheap Flights from Boise (BOI) to Cairns (CNS)

View $696 flight on Mon, Jun 1, 2026Opens in a new window

Popular airlines from Boise Airport (BOI) to Cairns Intl. Airport (CNS)

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Cheap Flights from Boise to Cairns (BOI-CNS)

Prices were available within the past 7 days and start at $696 for one-way flights and $1,431 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Feb 2 - Sat, Feb 14
BOI
Boise
CNS
Cairns
$1,431 Roundtrip, found 13 hours ago
$1,431
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Boise to Cairns, returning Sat, Feb 14, priced at $1,431 found 13 hours ago
Alaska Airlines
Mon, Feb 2 - Sat, Feb 14
BOI
Boise
CNS
Cairns
$1,441 Roundtrip, found 13 hours ago
$1,441
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Boise to Cairns, returning Sat, Feb 14, priced at $1,441 found 13 hours ago
Alaska Airlines
Mon, Feb 2 - Sat, Feb 14
BOI
Boise
CNS
Cairns
$1,445 Roundtrip, found 13 hours ago
$1,445
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Boise to Cairns, returning Sat, Feb 14, priced at $1,445 found 13 hours ago
Alaska Airlines
Mon, Feb 2 - Sat, Feb 14
BOI
Boise
CNS
Cairns
$1,467 Roundtrip, found 13 hours ago
$1,467
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Boise to Cairns, returning Sat, Feb 14, priced at $1,467 found 13 hours ago
Alaska Airlines
Mon, Feb 2 - Sat, Feb 14
BOI
Boise
CNS
Cairns
$1,472 Roundtrip, found 13 hours ago
$1,472
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Boise to Cairns, returning Sat, Feb 14, priced at $1,472 found 13 hours ago
Alaska Airlines
Mon, Feb 2 - Sat, Feb 14
BOI
Boise
CNS
Cairns
$1,475 Roundtrip, found 13 hours ago
$1,475
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Boise to Cairns, returning Sat, Feb 14, priced at $1,475 found 13 hours ago
American Airlines
Wed, Nov 12 - Wed, Nov 19
BOI
Boise
CNS
Cairns
$1,497 Roundtrip, found 4 days ago
$1,497
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Nov 12 from Boise to Cairns, returning Wed, Nov 19, priced at $1,497 found 4 days ago
Qantas Airways
Sun, Nov 9 - Sat, Nov 22
BOI
Boise
CNS
Cairns
$1,550 Roundtrip, found 4 days ago
$1,550
Roundtrip
found 4 days ago
Select Qantas Airways flight, departing Sun, Nov 9 from Boise to Cairns, returning Sat, Nov 22, priced at $1,550 found 4 days ago
United
Mon, Nov 10 - Sun, Nov 16
BOI
Boise
CNS
Cairns
$1,568 Roundtrip, found 4 days ago
$1,568
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from Boise to Cairns, returning Sun, Nov 16, priced at $1,568 found 4 days ago
Japan Airlines
Mon, Feb 2 - Sat, Feb 14
BOI
Boise
CNS
Cairns
$10,780 Roundtrip, found 13 hours ago
$10,780
Roundtrip
found 13 hours ago
Select Japan Airlines flight, departing Mon, Feb 2 from Boise to Cairns, returning Sat, Feb 14, priced at $10,780 found 13 hours ago

Alternative airports near Cairns

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cairns Intl. CNS. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $1,577
CNS
Cairns Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $1,577

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Cairns Intl. Airport (CNS) cost?
Secure a cheap one-way flight from $696 or cheap return flight from $1,431 from Boise Airport (BOI) to Cairns Intl. Airport (CNS) 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 Boise Airport (BOI) to Cairns Intl. Airport (CNS)?
February is the most affordable month to fly from BOI to CNS. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Boise Airport (BOI) to Cairns Intl. Airport (CNS)?
To find the cheapest airline flying from BOI to CNS, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Boise Airport (BOI) to Cairns Intl. Airport (CNS)?
You'll need to hop on a flight with a layover when traveling from Boise Airport (BOI) to Cairns Intl. Airport (CNS). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from BOI to CNS?
You'll generally 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 Boise Airport (BOI) to Cairns Intl. Airport (CNS)?
To avoid potential delays on the Boise Airport (BOI) to Cairns Intl. Airport (CNS) route, travel before 3 PM. Flights after this time 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 Boise Airport (BOI) to Cairns Intl. Airport (CNS) last-minute?
Booking your ticket from BOI to CNS right before your getaway is generally more expensive. However, if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a BOI to CNS flight and hotel package?
You'll generally save money by securing a BOI to CNS 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 it all in one place. After choosing your ideal accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Cairns Intl. Airport (CNS)?
It's generally possible to cancel or reschedule your BOI to CNS flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Boise
Destination airport
Cairns Intl.
Airlines serving
Japan Airlines, Qantas Airways, United
Roundtrip price
$1,430
Distance
7411 mi

Book with confidence

Boise to Cairns Flights

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

 

The best time to book a flight from Boise to Cairns

Sunday is one of the best days to book for cheap flights from Boise 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 Boise 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 Boise to Cairns in 2025. You can also book with separate airlines for your outbound and return journeys, from $696 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 Boise 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 Boise 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.

 

Boise to Cairns Flights

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*Available to One Key members.