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Cheap flights from Boston to Cairns from $1,184

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 19/7. 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.
Multiple Airlines Logo
22:00 - 09:50
BOS
-
CNS
45h 50m
2 stops
Multiple Airlines Logo
10:30 - 15:15
CNS
-
BOS
42h 45m
2 stops
$2,156Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
18:50 - 04:30
BOS
-
CNS
43h 40m
2 stops
Multiple Airlines Logo
19:10 - 22:40
CNS
-
BOS
41h 30m
3 stops
$2,467Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
16:29 - 17:35
BOS
-
CNS
35h 06m
2 stops
Qantas Airways Logo
09:25 - 08:35
CNS
-
BOS
37h 10m
2 stops
$2,659Qantas Airways
Sun, 28 Jun - Tue, 28 Jul
Multiple Airlines Logo
10:50 - 04:30
BOS
-
CNS
27h 40m
2 stops
Multiple Airlines Logo
19:15 - 22:40
CNS
-
BOS
41h 25m
3 stops
$2,695Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
16:27 - 12:55
BOS
-
CNS
30h 28m
2 stops
Multiple Airlines Logo
15:45 - 09:39
CNS
-
BOS
31h 54m
3 stops
$2,703Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
12:01 - 18:25
BOS
-
CNS
40h 24m
3 stops
Multiple Airlines Logo
13:15 - 18:40
CNS
-
BOS
43h 25m
2 stops
$3,036Multiple Airlines
Sun, 28 Jun - Tue, 28 Jul
Qantas Airways Logo
11:53 - 13:40
BOS
-
CNS
35h 47m
3 stops
Qantas Airways Logo
10:15 - 23:28
CNS
-
BOS
51h 13m
3 stops
$3,192Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
16:29 - 17:35
BOS
-
CNS
35h 06m
2 stops
Qantas Airways Logo
19:10 - 22:59
CNS
-
BOS
41h 49m
3 stops
$3,406Qantas Airways
Sun, 28 Jun - Tue, 28 Jul
Emirates Logo
23:05 - 22:45
BOS
-
CNS
57h 40m
2 stops
Emirates Logo
18:55 - 14:10
CNS
-
BOS
57h 15m
2 stops
$3,740Emirates
Fri, 10 Jul - Sun, 26 Jul
Emirates Logo
23:05 - 19:30
BOS
-
CNS
54h 25m
2 stops
Emirates Logo
06:00 - 14:10
CNS
-
BOS
46h 10m
2 stops
$3,741Emirates
Fri, 10 Jul - Sun, 26 Jul

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets
Qantas Airways
28 June
BOS16:29Boston Logan Intl
35h 06m
2 stops
CNS17:35Cairns
28 July
CNS09:25Cairns
37h 10m
2 stops
BOS08:35Boston Logan Intl
$2,659
Qantas Airways
7 Sept
BOS11:53Boston Logan Intl
35h 47m
3 stops
CNS13:40Cairns
17 Sept
CNS10:15Cairns
51h 13m
3 stops
BOS23:28Boston Logan Intl
$3,192
Qantas Airways
28 June
BOS16:29Boston Logan Intl
35h 06m
2 stops
CNS17:35Cairns
28 July
CNS19:10Cairns
41h 49m
3 stops
BOS22:59Boston Logan Intl
$3,406

Emirates flights from Boston to Cairns

Our best Emirates deals on Boston to Cairns flight tickets
Emirates
10 July
BOS23:05Boston Logan Intl
57h 40m
2 stops
CNS22:45Cairns
26 July
CNS18:55Cairns
57h 15m
2 stops
BOS14:10Boston Logan Intl
$3,740
Emirates
10 July
BOS23:05Boston Logan Intl
54h 25m
2 stops
CNS19:30Cairns
26 July
CNS06:00Cairns
46h 10m
2 stops
BOS14:10Boston Logan Intl
$3,741

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 31 May 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

Mon 7/9

22:00-09:50

2 stops45h 50m

Cairns

Thu 17/9

10:30-15:15

2 stops42h 45m

$2,156

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

18:50-04:30

2 stops43h 40m

Cairns

Thu 17/9

19:10-22:40

3 stops41h 30m

$2,467

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 28/6

16:29-17:35

2 stops35h 06m

Cairns

Tue 28/7

09:25-08:35

2 stops37h 10m

$2,659

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

10:50-04:30

2 stops27h 40m

Cairns

Thu 17/9

19:15-22:40

3 stops41h 25m

$2,695
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

16:27-12:55

2 stops30h 28m

Cairns

Thu 17/9

15:45-09:39

3 stops31h 54m

$2,703

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 28/6

12:01-18:25

3 stops40h 24m

Cairns

Tue 28/7

13:15-18:40

2 stops43h 25m

$3,036

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

11:53-13:40

3 stops35h 47m

Cairns

Thu 17/9

10:15-23:28

3 stops51h 13m

$3,192

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 28/6

16:29-17:35

2 stops35h 06m

Cairns

Tue 28/7

19:10-22:59

3 stops41h 49m

$3,406

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 10/7

23:05-22:45

2 stops57h 40m

Cairns

Sun 26/7

18:55-14:10

2 stops57h 15m

$3,740

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 10/7

23:05-19:30

2 stops54h 25m

Cairns

Sun 26/7

06:00-14:10

2 stops46h 10m

$3,741

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?

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 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 06m

Direct flights

None
The fastest flight from Boston to Cairns takes 35h 06m
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 06m, 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.

An easier way to manage your Cairns trip

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