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Cheap flights from Boston to Cairns from $1,077

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.
American Airlines Logo
16:27 - 12:55
BOS
-
CNS
30h 28m
2 stops
American Airlines Logo
13:55 - 08:13
CNS
-
BOS
32h 18m
2 stops
$2,091American Airlines
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
10:30 - 12:55
BOS
-
CNS
36h 25m
2 stops
Qantas Airways Logo
13:40 - 19:42
CNS
-
BOS
44h 02m
2 stops
$2,140Qantas Airways
Tue, 11 Aug - Tue, 18 Aug
Multiple Airlines Logo
12:27 - 14:55
BOS
-
CNS
35h 28m
3 stops
Multiple Airlines Logo
06:00 - 01:05
CNS
-
BOS
34h 05m
2 stops
$2,144Multiple Airlines
Sun, 22 Nov - Sun, 6 Dec
Multiple Airlines Logo
10:30 - 22:25
BOS
-
CNS
45h 55m
2 stops
Multiple Airlines Logo
19:10 - 23:44
CNS
-
BOS
42h 34m
2 stops
$2,161Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Multiple Airlines Logo
10:30 - 12:55
BOS
-
CNS
36h 25m
2 stops
Multiple Airlines Logo
13:55 - 19:42
CNS
-
BOS
43h 47m
3 stops
$2,272Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Qantas Airways Logo
10:30 - 12:55
BOS
-
CNS
36h 25m
2 stops
Qantas Airways Logo
13:55 - 19:42
CNS
-
BOS
43h 47m
3 stops
$2,292Qantas Airways
Tue, 11 Aug - Tue, 18 Aug
Multiple Airlines Logo
11:53 - 18:25
BOS
-
CNS
40h 32m
3 stops
Multiple Airlines Logo
13:55 - 19:42
CNS
-
BOS
43h 47m
3 stops
$2,304Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
American Airlines Logo
14:32 - 12:55
BOS
-
CNS
32h 23m
2 stops
American Airlines Logo
13:55 - 08:13
CNS
-
BOS
32h 18m
2 stops
$2,307American Airlines
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
10:40 - 04:30
BOS
-
CNS
27h 50m
2 stops
Multiple Airlines Logo
19:10 - 11:55
CNS
-
BOS
54h 45m
3 stops
$2,393Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
10:40 - 04:30
BOS
-
CNS
27h 50m
2 stops
Multiple Airlines Logo
19:10 - 11:55
CNS
-
BOS
54h 45m
3 stops
$2,870Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep

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Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets
Qantas Airways
11 Aug
BOS10:30Boston Logan Intl
36h 25m
2 stops
CNS12:55Cairns
18 Aug
CNS13:40Cairns
44h 02m
2 stops
BOS19:42Boston Logan Intl
$2,140
Qantas Airways
11 Aug
BOS10:30Boston Logan Intl
36h 25m
2 stops
CNS12:55Cairns
18 Aug
CNS13:55Cairns
43h 47m
3 stops
BOS19:42Boston Logan Intl
$2,292
Qantas Airways
28 Oct
BOS11:00Boston Logan Intl
39h 55m
2 stops
CNS16:55Cairns
1 Nov
CNS11:35Cairns
33h 43m
2 stops
BOS07:18Boston Logan Intl
$3,049

Air Canada flights from Boston to Cairns

Our best Air Canada deals on Boston to Cairns flight tickets
Air Canada
7 Sept
BOS06:00Boston Logan Intl
43h 55m
3 stops
CNS15:55Cairns
17 Sept
CNS19:15Cairns
41h 25m
3 stops
BOS22:40Boston Logan Intl
$3,250
Air Canada
28 Oct
BOS19:40Boston Logan Intl
53h 15m
3 stops
CNS14:55Cairns
1 Nov
CNS17:35Cairns
44h 02m
3 stops
BOS22:37Boston Logan Intl
$3,661
Air Canada
28 Oct
BOS05:45Boston Logan Intl
43h 10m
3 stops
CNS14:55Cairns
1 Nov
CNS17:35Cairns
55h 42m
3 stops
BOS10:17Boston Logan Intl
$3,762

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 13 July 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
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

16:27-12:55

2 stops30h 28m

Cairns

Thu 17/9

13:55-08:13

2 stops32h 18m

$2,091

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

10:30-12:55

2 stops36h 25m

Cairns

Tue 18/8

13:40-19:42

2 stops44h 02m

$2,140

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 22/11

12:27-14:55

3 stops35h 28m

Cairns

Sun 6/12

06:00-01:05

2 stops34h 05m

$2,144

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

10:30-22:25

2 stops45h 55m

Cairns

Tue 18/8

19:10-23:44

2 stops42h 34m

$2,161

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

10:30-12:55

2 stops36h 25m

Cairns

Tue 18/8

13:55-19:42

3 stops43h 47m

$2,272

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

10:30-12:55

2 stops36h 25m

Cairns

Tue 18/8

13:55-19:42

3 stops43h 47m

$2,292

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

11:53-18:25

3 stops40h 32m

Cairns

Tue 18/8

13:55-19:42

3 stops43h 47m

$2,304

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

14:32-12:55

2 stops32h 23m

Cairns

Thu 17/9

13:55-08:13

2 stops32h 18m

$2,307

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

10:40-04:30

2 stops27h 50m

Cairns

Thu 17/9

19:10-11:55

3 stops54h 45m

$2,393

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

10:40-04:30

2 stops27h 50m

Cairns

Thu 17/9

19:10-11:55

3 stops54h 45m

$2,870

Flights are sorted by cheapest return 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?

American Airlines 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

35h 15m

Direct flights

None
The fastest flight from Boston to Cairns takes 35h 15m
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 35h 15m, 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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