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Cheap flights from Boston to Cairns from $787

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Cairns departing on 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Cairns

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:30 pm - 3:55 pm
BOS
-
CNS
37h 25m
2 stops
Multiple Airlines Logo
4:35 pm - 4:08 pm
CNS
-
BOS
61h 33m
2 stops
$1,415Multiple Airlines
Sun, May 31 - Wed, Jun 24
Multiple Airlines Logo
12:30 pm - 11:10 am
BOS
-
CNS
32h 40m
3 stops
Multiple Airlines Logo
4:35 pm - 4:08 pm
CNS
-
BOS
61h 33m
2 stops
$1,416Multiple Airlines
Sun, May 31 - Wed, Jun 24
Multiple Airlines Logo
1:00 pm - 1:40 pm
BOS
-
CNS
34h 40m
3 stops
Multiple Airlines Logo
7:10 pm - 11:46 am
CNS
-
BOS
54h 36m
3 stops
$1,486Multiple Airlines
Fri, Apr 24 - Thu, May 7
Qatar Airways Logo
10:00 pm - 11:20 pm
BOS
-
CNS
35h 20m
2 stops
Qatar Airways Logo
9:20 am - 3:15 pm
CNS
-
BOS
43h 55m
2 stops
$1,500Qatar Airways
Mon, Sep 7 - Thu, Sep 17
Qatar Airways Logo
10:00 pm - 11:20 pm
BOS
-
CNS
35h 20m
2 stops
Qatar Airways Logo
9:20 am - 3:15 pm
CNS
-
BOS
43h 55m
2 stops
$1,508Qatar Airways
Mon, Sep 7 - Thu, Sep 17
Multiple Airlines Logo
10:45 am - 3:55 pm
BOS
-
CNS
39h 10m
2 stops
Multiple Airlines Logo
7:15 pm - 9:53 am
CNS
-
BOS
52h 38m
2 stops
$1,527Multiple Airlines
Tue, Jun 2 - Thu, Jun 25
ANA Logo
12:30 pm - 11:10 am
BOS
-
CNS
32h 40m
3 stops
ANA Logo
4:35 pm - 11:52 am
CNS
-
BOS
57h 17m
2 stops
$1,528ANA
Sun, May 31 - Tue, Jun 23
Qatar Airways Logo
10:00 pm - 11:20 pm
BOS
-
CNS
35h 20m
2 stops
Qatar Airways Logo
4:55 pm - 3:05 pm
CNS
-
BOS
60h 10m
2 stops
$1,539Qatar Airways
Fri, Apr 24 - Thu, May 7
Qatar Airways Logo
10:00 pm - 11:20 pm
BOS
-
CNS
35h 20m
2 stops
Qatar Airways Logo
9:20 am - 3:05 pm
CNS
-
BOS
43h 45m
2 stops
$1,547Qatar Airways
Fri, Apr 24 - Thu, May 7
Qatar Airways Logo
10:00 pm - 9:50 am
BOS
-
CNS
45h 50m
2 stops
Qatar Airways Logo
10:30 am - 3:05 pm
CNS
-
BOS
42h 35m
2 stops
$1,551Qatar Airways
Thu, Apr 23 - Thu, Apr 30

Qatar Airways flights from Boston to Cairns

Our best Qatar Airways deals on Boston to Cairns flight tickets
Qatar Airways
Sep 7
BOS10:00 pmBoston Logan Intl
35h 20m
2 stops
CNS11:20 pmCairns
Sep 17
CNS9:20 amCairns
43h 55m
2 stops
BOS3:15 pmBoston Logan Intl
$1,500
Qatar Airways
Sep 7
BOS10:00 pmBoston Logan Intl
35h 20m
2 stops
CNS11:20 pmCairns
Sep 17
CNS9:20 amCairns
43h 55m
2 stops
BOS3:15 pmBoston Logan Intl
$1,508
Qatar Airways
Apr 24
BOS10:00 pmBoston Logan Intl
35h 20m
2 stops
CNS11:20 pmCairns
May 7
CNS4:55 pmCairns
60h 10m
2 stops
BOS3:05 pmBoston Logan Intl
$1,539

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets
Qantas Airways
Jun 10
BOS7:42 amBoston Logan Intl
36h 53m
2 stops
CNS10:35 amCairns
Jun 24
CNS1:40 pmCairns
45h 16m
2 stops
BOS8:56 pmBoston Logan Intl
$1,682
Qantas Airways
Jun 3
BOS12:15 pmBoston Logan Intl
36h 45m
2 stops
CNS3:00 pmCairns
Jun 22
CNS6:00 amCairns
39h 05m
2 stops
BOS7:05 amBoston Logan Intl
$1,684
Qantas Airways
Jun 3
BOS12:15 pmBoston Logan Intl
41h 15m
2 stops
CNS7:30 pmCairns
Jun 25
CNS1:40 pmCairns
47h 17m
2 stops
BOS10:57 pmBoston Logan Intl
$1,724

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Cairns that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 12, 2026.
Use the filters below to find and compare flights from Boston to Cairns that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 5/31

12:30 pm-3:55 pm

2 stops37h 25m

Cairns

Wed 6/24

4:35 pm-4:08 pm

2 stops61h 33m

$1,415

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 5/31

12:30 pm-11:10 am

3 stops32h 40m

Cairns

Wed 6/24

4:35 pm-4:08 pm

2 stops61h 33m

$1,416

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 4/24

1:00 pm-1:40 pm

3 stops34h 40m

Cairns

Thu 5/7

7:10 pm-11:46 am

3 stops54h 36m

$1,486

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:00 pm-11:20 pm

2 stops35h 20m

Cairns

Thu 9/17

9:20 am-3:15 pm

2 stops43h 55m

$1,500

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:00 pm-11:20 pm

2 stops35h 20m

Cairns

Thu 9/17

9:20 am-3:15 pm

2 stops43h 55m

$1,508

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 6/2

10:45 am-3:55 pm

2 stops39h 10m

Cairns

Thu 6/25

7:15 pm-9:53 am

2 stops52h 38m

$1,527

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 5/31

12:30 pm-11:10 am

3 stops32h 40m

Cairns

Tue 6/23

4:35 pm-11:52 am

2 stops57h 17m

$1,528

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 4/24

10:00 pm-11:20 pm

2 stops35h 20m

Cairns

Thu 5/7

4:55 pm-3:05 pm

2 stops60h 10m

$1,539
Quickest round-trip

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 4/24

10:00 pm-11:20 pm

2 stops35h 20m

Cairns

Thu 5/7

9:20 am-3:05 pm

2 stops43h 45m

$1,547

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 4/23

10:00 pm-9:50 am

2 stops45h 50m

Cairns

Thu 4/30

10:30 am-3:05 pm

2 stops42h 35m

$1,551

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Cairns from

How to get the cheapest flight ticket from Boston to Cairns

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Boston Logan Intl to Cairns?

Japan Airlines is the most popular carrier operating from Boston Logan Intl to Cairns

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

35h 20m

Direct flights

None
The fastest flight from Boston to Cairns takes 35h 20m
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. 35h 20m 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.

Traveling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Port Douglas
Mission Beach
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.

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