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?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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 refreshed on a daily basis.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Cairns Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$1,426 Cheap Flights from Boston to Cairns in 2026

1 adult

0 bags

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Find the cheapest flights from Boston to Cairns

Round-trip

One-way

Cheap round-trip flights

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8:26 am - 10:45 am

BOS

CNS

35h 19m

2 stops

9:20 am - 10:12 pm

CNS

BOS

51h 52m

2 stops

$1,457Qantas Airways

Wed, Feb 18 - Fri, Feb 27

8:40 pm - 8:30 am

BOS

CNS

44h 50m

3 stops

5:20 pm - 1:55 pm

CNS

BOS

59h 35m

2 stops

$1,570Multiple Airlines

Wed, Feb 18 - Fri, Feb 27

4:04 pm - 11:00 am

BOS

CNS

27h 56m

2 stops

5:35 pm - 10:12 pm

CNS

BOS

43h 37m

2 stops

$1,656Qantas Airways

Sat, Feb 28 - Wed, Mar 4

4:04 pm - 11:05 pm

BOS

CNS

40h 01m

2 stops

11:45 am - 5:14 pm

CNS

BOS

44h 29m

2 stops

$1,658Qantas Airways

Sat, Feb 28 - Wed, Mar 4

5:50 pm - 2:00 pm

BOS

CNS

29h 10m

2 stops

6:00 am - 11:57 pm

CNS

BOS

32h 57m

3 stops

$1,845United Airlines

Wed, Feb 18 - Fri, Feb 27

11:45 am - 4:15 pm

BOS

CNS

37h 30m

3 stops

3:35 pm - 3:13 pm

CNS

BOS

38h 38m

2 stops

$2,683Qantas Airways

Sat, Feb 28 - Wed, Mar 4

11:45 am - 4:15 pm

BOS

CNS

37h 30m

3 stops

3:35 pm - 3:13 pm

CNS

BOS

38h 38m

2 stops

$2,685Qantas Airways

Sat, Feb 28 - Wed, Mar 4

11:45 am - 11:50 am

BOS

CNS

33h 05m

3 stops

3:35 pm - 3:13 pm

CNS

BOS

38h 38m

2 stops

$2,686Qantas Airways

Sat, Feb 28 - Wed, Mar 4

6:15 am - 8:20 am

BOS

CNS

59h 05m

3 stops

3:45 pm - 10:37 pm

CNS

BOS

45h 52m

3 stops

$2,862Multiple Airlines

Wed, Feb 18 - Fri, Feb 27

2:16 pm - 5:20 pm

BOS

CNS

36h 04m

3 stops

6:35 pm - 8:24 pm

CNS

BOS

40h 49m

3 stops

$3,002Singapore Airlines

Wed, Feb 18 - Fri, Feb 27

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets

Qantas Airways

Feb 18

BOS8:26 amBoston Logan Intl

35h 19m

2 stops

CNS10:45 amCairns

Feb 27

CNS9:20 amCairns

51h 52m

2 stops

BOS10:12 pmBoston Logan Intl

$1,457

Qantas Airways

Feb 28

BOS4:04 pmBoston Logan Intl

27h 56m

2 stops

CNS11:00 amCairns

Mar 4

CNS5:35 pmCairns

43h 37m

2 stops

BOS10:12 pmBoston Logan Intl

$1,656

Qantas Airways

Feb 28

BOS4:04 pmBoston Logan Intl

40h 01m

2 stops

CNS11:05 pmCairns

Mar 4

CNS11:45 amCairns

44h 29m

2 stops

BOS5:14 pmBoston Logan Intl

$1,658

Cathay Pacific flights from Boston to Cairns

Our best Cathay Pacific deals on Boston to Cairns flight tickets

Cathay Pacific

Feb 12

BOS12:30 amBoston Logan Intl

49h 20m

2 stops

CNS4:50 pmCairns

Feb 21

CNS11:25 amCairns

25h 35m

1 stop

BOS10:00 pmBoston Logan Intl

$11,161

Cathay Pacific

Feb 12

BOS12:30 amBoston Logan Intl

43h 15m

2 stops

CNS10:45 amCairns

Feb 21

CNS11:25 amCairns

25h 35m

1 stop

BOS10:00 pmBoston Logan Intl

$12,537

Fly from

Fly to

Route

Depart

Return

Price

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 2/18

8:26 am-10:45 am

2 stops35h 19m

Cairns

Fri 2/27

9:20 am-10:12 pm

2 stops51h 52m

$1,457

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 2/18

8:40 pm-8:30 am

3 stops44h 50m

Cairns

Fri 2/27

5:20 pm-1:55 pm

2 stops59h 35m

$1,570

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 2/28

4:04 pm-11:00 am

2 stops27h 56m

Cairns

Wed 3/4

5:35 pm-10:12 pm

2 stops43h 37m

$1,656

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 2/28

4:04 pm-11:05 pm

2 stops40h 01m

Cairns

Wed 3/4

11:45 am-5:14 pm

2 stops44h 29m

$1,658

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 2/18

5:50 pm-2:00 pm

2 stops29h 10m

Cairns

Fri 2/27

6:00 am-11:57 pm

3 stops32h 57m

$1,845

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 2/28

11:45 am-4:15 pm

3 stops37h 30m

Cairns

Wed 3/4

3:35 pm-3:13 pm

2 stops38h 38m

$2,683

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 2/28

11:45 am-4:15 pm

3 stops37h 30m

Cairns

Wed 3/4

3:35 pm-3:13 pm

2 stops38h 38m

$2,685

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 2/28

11:45 am-11:50 am

3 stops33h 05m

Cairns

Wed 3/4

3:35 pm-3:13 pm

2 stops38h 38m

$2,686

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 2/18

6:15 am-8:20 am

3 stops59h 05m

Cairns

Fri 2/27

3:45 pm-10:37 pm

3 stops45h 52m

$2,862

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 2/18

2:16 pm-5:20 pm

3 stops36h 04m

Cairns

Fri 2/27

6:35 pm-8:24 pm

3 stops40h 49m

$3,002

Flights are sorted by cheapest round-trip 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 round-trip 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	40h 01m
Direct flights	None

The fastest flight from Boston to Cairns takes 40h 01m

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?
There are 9641.2 mi between Boston Logan Intl and Cairns. 40h 01m is a normal flight duration for this route.
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 refreshed on a daily basis.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Cairns Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Port Douglas

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Palm Cove

Trinity Beach

Why use momondo?

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

It is quick and easy to find Boston to Cairns flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cairns that suits you.

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

momondo does allow users to show only those flights to Cairns from Boston which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Cairns.

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

Price alerts on flights to Cairns from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.