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Cheap flights from Boston to Cairns from $1,066

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 12/10. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Boston to Cairns

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
16:15 - 11:10
BOS
-
CNS
28h 55m
2 stops
United Airlines Logo
06:00 - 23:59
CNS
-
BOS
31h 59m
3 stops
$1,953United Airlines
Sun, 23 Aug - Tue, 1 Sep
United Airlines Logo
14:00 - 11:10
BOS
-
CNS
31h 10m
2 stops
United Airlines Logo
06:00 - 21:02
CNS
-
BOS
29h 02m
2 stops
$1,953United Airlines
Sun, 23 Aug - Tue, 1 Sep
United Airlines Logo
17:01 - 11:10
BOS
-
CNS
52h 09m
3 stops
United Airlines Logo
06:00 - 23:59
CNS
-
BOS
31h 59m
3 stops
$1,979United Airlines
Sat, 22 Aug - Tue, 1 Sep
United Airlines Logo
17:01 - 11:10
BOS
-
CNS
52h 09m
3 stops
United Airlines Logo
06:00 - 17:07
CNS
-
BOS
25h 07m
2 stops
$1,979United Airlines
Sat, 22 Aug - Tue, 1 Sep
American Airlines Logo
16:59 - 12:55
BOS
-
CNS
29h 56m
2 stops
American Airlines Logo
13:55 - 08:13
CNS
-
BOS
32h 18m
2 stops
$1,999American Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
16:35 - 12:55
BOS
-
CNS
30h 20m
2 stops
Multiple Airlines Logo
06:50 - 21:27
CNS
-
BOS
28h 37m
2 stops
$2,019Multiple Airlines
Tue, 15 Sep - Tue, 22 Sep
American Airlines Logo
16:35 - 12:55
BOS
-
CNS
30h 20m
2 stops
American Airlines Logo
15:45 - 08:13
CNS
-
BOS
30h 28m
2 stops
$2,050American Airlines
Sun, 13 Sep - Sun, 20 Sep
Multiple Airlines Logo
16:35 - 12:55
BOS
-
CNS
30h 20m
2 stops
Multiple Airlines Logo
06:45 - 19:52
CNS
-
BOS
27h 07m
2 stops
$2,145Multiple Airlines
Fri, 11 Sep - Fri, 18 Sep
Multiple Airlines Logo
22:00 - 23:20
BOS
-
CNS
35h 20m
2 stops
Multiple Airlines Logo
16:55 - 15:15
CNS
-
BOS
36h 20m
2 stops
$2,182Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
07:00 - 19:30
BOS
-
CNS
46h 30m
2 stops
Qantas Airways Logo
06:50 - 23:44
CNS
-
BOS
54h 54m
2 stops
$2,184Qantas Airways
Sun, 23 Aug - Sat, 29 Aug

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Air Canada flights from Boston to Cairns

Our best Air Canada deals on Boston to Cairns flight tickets
Air Canada
13 Sept
BOS12:30Boston Logan Intl
32h 40m
3 stops
CNS11:10Cairns
20 Sept
CNS19:15Cairns
41h 25m
3 stops
BOS22:40Boston Logan Intl
$2,495
Air Canada
7 Sept
BOS06:00Boston Logan Intl
43h 55m
3 stops
CNS15:55Cairns
17 Sept
CNS19:15Cairns
54h 36m
3 stops
BOS11:51Boston Logan Intl
$3,217
Air Canada
11 Sept
BOS10:50Boston Logan Intl
34h 20m
3 stops
CNS11:10Cairns
18 Sept
CNS19:15Cairns
41h 25m
3 stops
BOS22:40Boston Logan Intl
$3,544

Emirates flights from Boston to Cairns

Our best Emirates deals on Boston to Cairns flight tickets
Emirates
11 Sept
BOS23:05Boston Logan Intl
44h 25m
2 stops
CNS09:30Cairns
15 Sept
CNS06:00Cairns
46h 10m
2 stops
BOS14:10Boston Logan Intl
$2,978
Emirates
11 Sept
BOS23:05Boston Logan Intl
44h 25m
2 stops
CNS09:30Cairns
15 Sept
CNS06:00Cairns
46h 10m
2 stops
BOS14:10Boston Logan Intl
$2,979

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 1 August 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 return flight

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 23/8

16:15-11:10

2 stops28h 55m

Cairns

Tue 1/9

06:00-23:59

3 stops31h 59m

$1,953

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 23/8

14:00-11:10

2 stops31h 10m

Cairns

Tue 1/9

06:00-21:02

2 stops29h 02m

$1,953

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 22/8

17:01-11:10

3 stops52h 09m

Cairns

Tue 1/9

06:00-23:59

3 stops31h 59m

$1,979

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 22/8

17:01-11:10

3 stops52h 09m

Cairns

Tue 1/9

06:00-17:07

2 stops25h 07m

$1,979

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 9/9

16:59-12:55

2 stops29h 56m

Cairns

Wed 16/9

13:55-08:13

2 stops32h 18m

$1,999

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 15/9

16:35-12:55

2 stops30h 20m

Cairns

Tue 22/9

06:50-21:27

2 stops28h 37m

$2,019

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 13/9

16:35-12:55

2 stops30h 20m

Cairns

Sun 20/9

15:45-08:13

2 stops30h 28m

$2,050
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 11/9

16:35-12:55

2 stops30h 20m

Cairns

Fri 18/9

06:45-19:52

2 stops27h 07m

$2,145

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

22:00-23:20

2 stops35h 20m

Cairns

Thu 17/9

16:55-15:15

2 stops36h 20m

$2,182

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 23/8

07:00-19:30

2 stops46h 30m

Cairns

Sat 29/8

06:50-23:44

2 stops54h 54m

$2,184

Flights are sorted by cheapest return 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?

American Airlines, Qantas Airways, and United Airlines are the most popular carriers 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 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

28h 42m

Direct flights

None
The fastest flight from Boston to Cairns takes 28h 42m
There are no direct flights from Boston to Cairns. There are no popular flight routes from Boston to Cairns.
Search flight deals

Frequently asked questions about flying from Boston to Cairns

  • 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 28h 42m, 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.

Travelling to a place near Cairns?

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

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