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Cheap flights from Boston to Cairns from $830

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 7/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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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.
American Airlines Logo
3:00 pm - 3:00 pm
BOS
-
CNS
34h 00m
2 stops
American Airlines Logo
3:45 pm - 8:35 am
CNS
-
BOS
30h 50m
2 stops
$1,555American Airlines
Mon, Jun 29 - Mon, Jul 6
American Airlines Logo
4:29 pm - 12:55 pm
BOS
-
CNS
30h 26m
2 stops
American Airlines Logo
3:45 pm - 8:35 am
CNS
-
BOS
30h 50m
2 stops
$1,611American Airlines
Wed, Jul 1 - Sat, Jul 11
Multiple Airlines Logo
10:00 pm - 9:50 am
BOS
-
CNS
45h 50m
2 stops
Multiple Airlines Logo
10:30 am - 3:15 pm
CNS
-
BOS
42h 45m
2 stops
$1,638Multiple Airlines
Mon, Sep 7 - Thu, Sep 17
Qatar Airways Logo
10:00 pm - 9:50 am
BOS
-
CNS
45h 50m
2 stops
Qatar Airways Logo
7:15 pm - 3:15 pm
CNS
-
BOS
58h 00m
2 stops
$1,646Qatar Airways
Mon, Sep 7 - Thu, Sep 17
Qatar Airways Logo
10:00 pm - 9:50 am
BOS
-
CNS
45h 50m
2 stops
Qatar Airways Logo
7:15 pm - 3:15 pm
CNS
-
BOS
58h 00m
2 stops
$1,658Qatar Airways
Mon, Sep 7 - Thu, Sep 17
Multiple Airlines Logo
12:30 pm - 1:40 pm
BOS
-
CNS
35h 10m
3 stops
Multiple Airlines Logo
7:10 pm - 9:55 am
CNS
-
BOS
52h 45m
3 stops
$1,894Multiple Airlines
Mon, Sep 7 - Thu, Sep 17
Multiple Airlines Logo
3:00 pm - 11:50 am
BOS
-
CNS
30h 50m
2 stops
Multiple Airlines Logo
10:15 am - 10:59 pm
CNS
-
BOS
50h 44m
3 stops
$1,996Multiple Airlines
Mon, Jun 29 - Mon, Jul 6
Multiple Airlines Logo
11:53 am - 6:25 pm
BOS
-
CNS
40h 32m
3 stops
Multiple Airlines Logo
6:45 am - 7:42 pm
CNS
-
BOS
26h 57m
2 stops
$2,061Multiple Airlines
Mon, Sep 7 - Thu, Sep 17
Multiple Airlines Logo
5:45 am - 4:30 am
BOS
-
CNS
32h 45m
2 stops
Multiple Airlines Logo
7:10 pm - 11:55 am
CNS
-
BOS
54h 45m
3 stops
$2,080Multiple Airlines
Mon, Sep 7 - Thu, Sep 17
Multiple Airlines Logo
10:40 am - 4:30 am
BOS
-
CNS
27h 50m
2 stops
Multiple Airlines Logo
7:10 pm - 9:55 am
CNS
-
BOS
52h 45m
3 stops
$2,081Multiple Airlines
Mon, Sep 7 - Thu, Sep 17

Japan Airlines flights from Boston to Cairns

Our best Japan Airlines deals on Boston to Cairns flight tickets
Japan Airlines
Jun 22
BOS1:15 pmBoston Logan Intl
25h 15m
1 stop
CNS4:30 amCairns
Jun 26
CNS5:00 pmCairns
39h 15m
2 stops
BOS6:15 pmBoston Logan Intl
$6,934
Japan Airlines
Sep 7
BOS1:00 pmBoston Logan Intl
25h 30m
1 stop
CNS4:30 amCairns
Sep 17
CNS11:40 amCairns
40h 30m
2 stops
BOS2:10 pmBoston Logan Intl
$10,569
Japan Airlines
Sep 7
BOS1:00 pmBoston Logan Intl
25h 30m
1 stop
CNS4:30 amCairns
Sep 17
CNS11:40 amCairns
40h 30m
2 stops
BOS2:10 pmBoston Logan Intl
$10,573

American Airlines flights from Boston to Cairns

Our best American Airlines deals on Boston to Cairns flight tickets
American Airlines
Jun 29
BOS3:00 pmBoston Logan Intl
34h 00m
2 stops
CNS3:00 pmCairns
Jul 6
CNS3:45 pmCairns
30h 50m
2 stops
BOS8:35 amBoston Logan Intl
$1,555
American Airlines
Jul 1
BOS4:29 pmBoston Logan Intl
30h 26m
2 stops
CNS12:55 pmCairns
Jul 11
CNS3:45 pmCairns
30h 50m
2 stops
BOS8:35 amBoston Logan Intl
$1,611

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 May 18, 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

Mon 6/29

3:00 pm-3:00 pm

2 stops34h 00m

Cairns

Mon 7/6

3:45 pm-8:35 am

2 stops30h 50m

$1,555
Quickest round-trip

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 7/1

4:29 pm-12:55 pm

2 stops30h 26m

Cairns

Sat 7/11

3:45 pm-8:35 am

2 stops30h 50m

$1,611

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:00 pm-9:50 am

2 stops45h 50m

Cairns

Thu 9/17

10:30 am-3:15 pm

2 stops42h 45m

$1,638

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:00 pm-9:50 am

2 stops45h 50m

Cairns

Thu 9/17

7:15 pm-3:15 pm

2 stops58h 00m

$1,646

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:00 pm-9:50 am

2 stops45h 50m

Cairns

Thu 9/17

7:15 pm-3:15 pm

2 stops58h 00m

$1,658

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

12:30 pm-1:40 pm

3 stops35h 10m

Cairns

Thu 9/17

7:10 pm-9:55 am

3 stops52h 45m

$1,894

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 6/29

3:00 pm-11:50 am

2 stops30h 50m

Cairns

Mon 7/6

10:15 am-10:59 pm

3 stops50h 44m

$1,996

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

11:53 am-6:25 pm

3 stops40h 32m

Cairns

Thu 9/17

6:45 am-7:42 pm

2 stops26h 57m

$2,061

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

5:45 am-4:30 am

2 stops32h 45m

Cairns

Thu 9/17

7:10 pm-11:55 am

3 stops54h 45m

$2,080

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:40 am-4:30 am

2 stops27h 50m

Cairns

Thu 9/17

7:10 pm-9:55 am

3 stops52h 45m

$2,081

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

United 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

30h 32m

Direct flights

None
The fastest flight from Boston to Cairns takes 30h 32m
There are no direct flights from Boston to Cairns. There are no popular flight routes from Boston to Cairns.
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Frequently asked questions about flying from Boston to Cairns

  • How far is Boston Logan Intl to Cairns by plane?

    There are 9641.2 mi between Boston Logan Intl and Cairns. 30h 32m 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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