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.

$1,947 Cheap Flights from Boston to Cairns in 2026

1 adult

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Find the cheapest flights from Boston to Cairns

Round-trip

One-way

Cheap return flights

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16:50 - 22:05

BOS

CNS

38h 15m2 stops

19:30 - 18:40

CNS

BOS

38h 10m2 stops

$1,947Multiple Airlines

Mon, 23 Feb - Mon, 2 Mar

20:40 - 08:30

BOS

CNS

68h 50m3 stops

11:40 - 13:55

CNS

BOS

41h 15m2 stops

$2,330Multiple Airlines

Mon, 23 Feb - Mon, 2 Mar

07:15 - 14:05

BOS

CNS

39h 50m2 stops

14:50 - 22:11

CNS

BOS

46h 21m3 stops

$2,371Qantas Airways

Mon, 23 Feb - Mon, 2 Mar

06:15 - 17:30

BOS

CNS

44h 15m3 stops

18:05 - 12:12

CNS

BOS

57h 07m3 stops

$2,440Multiple Airlines

Mon, 23 Feb - Mon, 2 Mar

08:00 - 14:00

BOS

CNS

39h 00m2 stops

06:00 - 23:57

CNS

BOS

32h 57m3 stops

$2,452United Airlines

Mon, 23 Feb - Mon, 2 Mar

05:35 - 14:55

BOS

CNS

42h 20m3 stops

06:00 - 23:57

CNS

BOS

32h 57m3 stops

$2,457United Airlines

Mon, 23 Feb - Mon, 2 Mar

08:23 - 10:45

BOS

CNS

35h 22m2 stops

15:35 - 06:14

CNS

BOS

29h 39m2 stops

$2,466Qantas Airways

Sat, 28 Feb - Wed, 4 Mar

10:15 - 14:00

BOS

CNS

36h 45m3 stops

06:00 - 21:27

CNS

BOS

30h 27m3 stops

$2,602Air Canada

Mon, 23 Feb - Mon, 2 Mar

05:35 - 14:55

BOS

CNS

42h 20m3 stops

06:00 - 19:56

CNS

BOS

28h 56m2 stops

$2,644United Airlines

Sat, 28 Feb - Wed, 4 Mar

22:10 - 08:35

BOS

CNS

43h 25m2 stops

11:45 - 13:55

CNS

BOS

65h 10m2 stops

$2,961Emirates

Mon, 23 Feb - Mon, 2 Mar

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets

Qantas Airways

23 Feb

BOS07:15Boston Logan Intl

39h 50m

2 stops

CNS14:05Cairns

2 Mar

CNS14:50Cairns

46h 21m

3 stops

BOS22:11Boston Logan Intl

$2,371

Qantas Airways

28 Feb

BOS10:10Boston Logan Intl

33h 35m

2 stops

CNS10:45Cairns

4 Mar

CNS14:50Cairns

30h 24m

2 stops

BOS06:14Boston Logan Intl

$2,466

Qantas Airways

28 Feb

BOS11:45Boston Logan Intl

33h 05m

3 stops

CNS11:50Cairns

4 Mar

CNS14:50Cairns

30h 24m

2 stops

BOS06:14Boston Logan Intl

$3,970

United Airlines flights from Boston to Cairns

Our best United Airlines deals on Boston to Cairns flight tickets

United Airlines

23 Feb

BOS08:00Boston Logan Intl

39h 00m

2 stops

CNS14:00Cairns

2 Mar

CNS06:00Cairns

32h 57m

3 stops

BOS23:57Boston Logan Intl

$2,452

United Airlines

23 Feb

BOS05:35Boston Logan Intl

42h 20m

3 stops

CNS14:55Cairns

2 Mar

CNS06:00Cairns

32h 57m

3 stops

BOS23:57Boston Logan Intl

$2,457

United Airlines

28 Feb

BOS05:35Boston Logan Intl

42h 20m

3 stops

CNS14:55Cairns

4 Mar

CNS06:00Cairns

28h 56m

2 stops

BOS19:56Boston Logan Intl

$2,644

Fly from

Fly to

Route

Depart

Return

Price

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

16:50-22:05

2 stops38h 15m

Cairns

Mon 2/3

19:30-18:40

2 stops38h 10m

$1,947

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

20:40-08:30

3 stops68h 50m

Cairns

Mon 2/3

11:40-13:55

2 stops41h 15m

$2,330

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

07:15-14:05

2 stops39h 50m

Cairns

Mon 2/3

14:50-22:11

3 stops46h 21m

$2,371

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

06:15-17:30

3 stops44h 15m

Cairns

Mon 2/3

18:05-12:12

3 stops57h 07m

$2,440

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

08:00-14:00

2 stops39h 00m

Cairns

Mon 2/3

06:00-23:57

3 stops32h 57m

$2,452

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

05:35-14:55

3 stops42h 20m

Cairns

Mon 2/3

06:00-23:57

3 stops32h 57m

$2,457

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 28/2

08:23-10:45

2 stops35h 22m

Cairns

Wed 4/3

15:35-06:14

2 stops29h 39m

$2,466

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

10:15-14:00

3 stops36h 45m

Cairns

Mon 2/3

06:00-21:27

3 stops30h 27m

$2,602

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 28/2

05:35-14:55

3 stops42h 20m

Cairns

Wed 4/3

06:00-19:56

2 stops28h 56m

$2,644

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 23/2

22:10-08:35

2 stops43h 25m

Cairns

Mon 2/3

11:45-13:55

2 stops65h 10m

$2,961

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	34h 00m
Direct flights	None

The fastest flight from Boston to Cairns takes 34h 00m

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 34h 00m, 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.

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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.