Cheap flights from Boston to Cairns from $1,553

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 24/6. 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

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Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
16:19 - 10:45
BOS
-
CNS
51h 26m2 stops
Qantas Airways Logo
11:35 - 17:56
CNS
-
BOS
45h 21m2 stops
$2,082Qantas Airways
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
10:15 - 09:55
BOS
-
CNS
32h 40m2 stops
Multiple Airlines Logo
11:25 - 05:00
CNS
-
BOS
32h 35m2 stops
$2,225Multiple Airlines
Sun, 25 Jan - Sat, 7 Feb
Qantas Airways Logo
16:04 - 11:00
BOS
-
CNS
27h 56m2 stops
Qantas Airways Logo
15:35 - 22:41
CNS
-
BOS
46h 06m2 stops
$2,237Qantas Airways
Sat, 14 Feb - Sat, 21 Feb
Multiple Airlines Logo
19:00 - 23:05
BOS
-
CNS
37h 05m3 stops
Multiple Airlines Logo
07:45 - 23:30
CNS
-
BOS
30h 45m2 stops
$2,246Multiple Airlines
Sun, 25 Jan - Sat, 7 Feb
Qantas Airways Logo
16:30 - 11:00
BOS
-
CNS
27h 30m2 stops
Qantas Airways Logo
15:35 - 06:14
CNS
-
BOS
29h 39m2 stops
$2,288Qantas Airways
Wed, 11 Feb - Sun, 15 Feb
Multiple Airlines Logo
10:15 - 09:55
BOS
-
CNS
32h 40m2 stops
Multiple Airlines Logo
11:25 - 22:00
CNS
-
BOS
25h 35m1 stop
$2,289Multiple Airlines
Sun, 25 Jan - Sat, 7 Feb
Qantas Airways Logo
14:36 - 11:50
BOS
-
CNS
31h 14m2 stops
Qantas Airways Logo
12:35 - 21:01
CNS
-
BOS
46h 26m2 stops
$2,334Qantas Airways
Fri, 3 Apr - Thu, 9 Apr
Qatar Airways Logo
22:00 - 23:20
BOS
-
CNS
35h 20m2 stops
Qatar Airways Logo
16:55 - 15:05
CNS
-
BOS
60h 10m2 stops
$2,337Qatar Airways
Fri, 1 May - Thu, 7 May
Multiple Airlines Logo
20:40 - 08:30
BOS
-
CNS
44h 50m3 stops
Multiple Airlines Logo
11:35 - 22:00
CNS
-
BOS
49h 25m2 stops
$2,392Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
22:00 - 08:40
BOS
-
CNS
44h 40m2 stops
Multiple Airlines Logo
11:00 - 15:05
CNS
-
BOS
42h 05m3 stops
$2,446Multiple Airlines
Thu, 9 Apr - Thu, 16 Apr

Qatar Airways flights from Boston to Cairns

Our best Qatar Airways deals on Boston to Cairns flight tickets
Qatar Airways
1 May
BOS22:00Boston Logan Intl
35h 20m
2 stops
CNS23:20Cairns
7 May
CNS16:55Cairns
60h 10m
2 stops
BOS15:05Boston Logan Intl
Qatar Airways
3 Apr
BOS22:00Boston Logan Intl
44h 40m
2 stops
CNS08:40Cairns
8 Apr
CNS16:55Cairns
36h 20m
2 stops
BOS15:15Boston Logan Intl
Qatar Airways
20 Mar
BOS21:40Boston Logan Intl
35h 25m
2 stops
CNS23:05Cairns
25 Mar
CNS15:45Cairns
37h 10m
2 stops
BOS14:55Boston Logan Intl

Singapore Airlines flights from Boston to Cairns

Our best Singapore Airlines deals on Boston to Cairns flight tickets
Singapore Airlines
20 Mar
BOS14:10Boston Logan Intl
37h 10m
3 stops
CNS17:20Cairns
25 Mar
CNS18:35Cairns
40h 49m
3 stops
BOS21:24Boston Logan Intl
Singapore Airlines
8 June
BOS05:25Boston Logan Intl
44h 30m
2 stops
CNS15:55Cairns
25 June
CNS06:00Cairns
29h 27m
3 stops
BOS21:27Boston Logan Intl
Singapore Airlines
28 Feb
BOS14:16Boston Logan Intl
36h 04m
3 stops
CNS17:20Cairns
4 Mar
CNS18:35Cairns
44h 23m
2 stops
BOS23:58Boston Logan Intl

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 2 January 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

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 30/1

16:19-10:45

2 stops51h 26m

Cairns

Fri 6/2

11:35-17:56

2 stops45h 21m

$2,082

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 25/1

10:15-09:55

2 stops32h 40m

Cairns

Sat 7/2

11:25-05:00

2 stops32h 35m

$2,225

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 14/2

16:04-11:00

2 stops27h 56m

Cairns

Sat 21/2

15:35-22:41

2 stops46h 06m

$2,237

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 25/1

19:00-23:05

3 stops37h 05m

Cairns

Sat 7/2

07:45-23:30

2 stops30h 45m

$2,246

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 11/2

16:30-11:00

2 stops27h 30m

Cairns

Sun 15/2

15:35-06:14

2 stops29h 39m

$2,288

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 25/1

10:15-09:55

2 stops32h 40m

Cairns

Sat 7/2

11:25-22:00

1 stop25h 35m

$2,289

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 3/4

14:36-11:50

2 stops31h 14m

Cairns

Thu 9/4

12:35-21:01

2 stops46h 26m

$2,334

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 1/5

22:00-23:20

2 stops35h 20m

Cairns

Thu 7/5

16:55-15:05

2 stops60h 10m

$2,337

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 30/1

20:40-08:30

3 stops44h 50m

Cairns

Fri 6/2

11:35-22:00

2 stops49h 25m

$2,392

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 9/4

22:00-08:40

2 stops44h 40m

Cairns

Thu 16/4

11:00-15:05

3 stops42h 05m

$2,446

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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 Japan 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

32h 40m

Direct flights

None
The fastest flight from Boston to Cairns takes 32h 40m
There are no direct flights from Boston to Cairns. There are no popular flight routes 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 32h 40m, 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
Trinity Beach
Mission 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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Sun 1/2
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