How do I get Price Alerts for flights from Boston to Cairns?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Boston from Cairns . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Boston to Cairns with momondo?

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Boston Logan Intl Airport to Cairns Airport?

Prices for flights from Boston Logan Intl Airport to Cairns Airport are updated daily.

How old do you have to be to fly from Boston Logan Intl Airport to Cairns Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Cairns Airport.

What documentation or ID do you need to fly to Cairns Airport?

The travel and health documents you'll need for your trip to Cairns Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Cairns Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$2,414 Cheap Flights from Boston to Cairns in 2025/26

1 adult

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Find the cheapest flights from Boston to Cairns

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

08:00 - 11:50

BOS

CNS

36h 50m2 stops

15:35 - 06:25

CNS

BOS

29h 50m2 stops

$2,414Qantas Airways

Sun, 1 Feb - Wed, 4 Feb

10:00 - 10:45

BOS

CNS

33h 45m2 stops

12:35 - 17:05

CNS

BOS

67h 30m2 stops

$2,467Qantas Airways

Sat, 21 Feb - Wed, 25 Feb

08:13 - 10:45

BOS

CNS

35h 32m2 stops

12:35 - 15:06

CNS

BOS

65h 31m2 stops

$2,468Qantas Airways

Sat, 21 Feb - Wed, 25 Feb

05:35 - 14:55

BOS

CNS

42h 20m3 stops

06:00 - 17:02

CNS

BOS

26h 02m2 stops

$3,073United Airlines

Sat, 21 Feb - Wed, 25 Feb

12:16 - 11:50

BOS

CNS

32h 34m3 stops

11:45 - 06:25

CNS

BOS

33h 40m2 stops

$3,388Qantas Airways

Sun, 1 Feb - Wed, 4 Feb

00:30 - 09:55

BOS

CNS

42h 25m1 stop

14:50 - 22:00

CNS

BOS

46h 10m2 stops

$5,718Cathay Pacific

Sat, 31 Jan - Wed, 4 Feb

23:05 - 04:35

BOS

CNS

39h 30m2 stops

11:55 - 14:30

CNS

BOS

40h 35m2 stops

$35,495Multiple Airlines

Sat, 14 Mar - Sat, 21 Mar

23:05 - 08:30

BOS

CNS

43h 25m3 stops

11:55 - 14:30

CNS

BOS

40h 35m2 stops

$39,250Multiple Airlines

Sat, 14 Mar - Sat, 21 Mar

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets

Qantas Airways

1 Feb

BOS08:00Boston Logan Intl

36h 50m

2 stops

CNS11:50Cairns

4 Feb

CNS15:35Cairns

29h 50m

2 stops

BOS06:25Boston Logan Intl

$2,414

Find similar

Qantas Airways

21 Feb

BOS10:00Boston Logan Intl

33h 45m

2 stops

CNS10:45Cairns

25 Feb

CNS12:35Cairns

67h 30m

2 stops

BOS17:05Boston Logan Intl

$2,467

Find similar

Qantas Airways

21 Feb

BOS08:13Boston Logan Intl

35h 32m

2 stops

CNS10:45Cairns

25 Feb

CNS12:35Cairns

65h 31m

2 stops

BOS15:06Boston Logan Intl

$2,468

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 1/2

08:00-11:50

2 stops36h 50m

Cairns

Wed 4/2

15:35-06:25

2 stops29h 50m

$2,414

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 21/2

10:00-10:45

2 stops33h 45m

Cairns

Wed 25/2

12:35-17:05

2 stops67h 30m

$2,467

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 21/2

08:13-10:45

2 stops35h 32m

Cairns

Wed 25/2

12:35-15:06

2 stops65h 31m

$2,468

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 21/2

05:35-14:55

3 stops42h 20m

Cairns

Wed 25/2

06:00-17:02

2 stops26h 02m

$3,073

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 1/2

12:16-11:50

3 stops32h 34m

Cairns

Wed 4/2

11:45-06:25

2 stops33h 40m

$3,388

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 31/1

00:30-09:55

1 stop42h 25m

Cairns

Wed 4/2

14:50-22:00

2 stops46h 10m

$5,718

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 14/3

23:05-04:35

2 stops39h 30m

Cairns

Sat 21/3

11:55-14:30

2 stops40h 35m

$35,495

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 14/3

23:05-08:30

3 stops43h 25m

Cairns

Sat 21/3

11:55-14:30

2 stops40h 35m

$39,250

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Boston to Cairns

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Cairns according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Boston to Cairns (BOS to CNS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Cairns

Fastest flight time	36h 50m
Direct flights	None

The fastest flight from Boston to Cairns takes 36h 50m

There are no direct flights from Boston to Cairns. There are no popular flight routes from Boston to Cairns.

Search flight deals

How far is Boston Logan Intl to Cairns by plane?
Boston Logan Intl and Cairns are 15516.0 km apart from one another. Flights usually cover this in 36h 50m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boston Logan Intl Airport to Cairns Airport?
Prices for flights from Boston Logan Intl Airport to Cairns Airport are updated daily.
How old do you have to be to fly from Boston Logan Intl Airport to Cairns Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Cairns Airport.
What documentation or ID do you need to fly to Cairns Airport?
The travel and health documents you'll need for your trip to Cairns Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Cairns Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from Boston to Cairns?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Boston from Cairns. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Boston to Cairns with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Port Douglas

Palm Cove

Trinity Beach

Mission Beach

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Cairns?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Cairns . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Cairns with flexible booking policies on momondo?

All flight searches from Boston to Cairns on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to Cairns?

momondo helps you find the best flight between Boston and Cairns by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Cairns right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to Cairns flights. All you need is a valid email address and we will do the rest; it is that quick and easy.