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Cheap flights from Boston to Cairns from $1,072

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.
Multiple Airlines Logo
16:59 - 12:55
BOS
-
CNS
29h 56m
2 stops
Multiple Airlines Logo
06:50 - 19:42
CNS
-
BOS
26h 52m
2 stops
$2,095Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Qantas Airways Logo
10:30 - 12:55
BOS
-
CNS
36h 25m
2 stops
Qantas Airways Logo
13:40 - 22:06
CNS
-
BOS
46h 26m
2 stops
$2,156Qantas Airways
Tue, 11 Aug - Tue, 18 Aug
Qantas Airways Logo
07:00 - 11:50
BOS
-
CNS
38h 50m
2 stops
Qantas Airways Logo
06:50 - 19:52
CNS
-
BOS
27h 02m
2 stops
$2,181Qantas Airways
Sat, 29 Aug - Wed, 30 Sep
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
$2,295Multiple 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
$2,298Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Qantas Airways Logo
16:59 - 12:55
BOS
-
CNS
29h 56m
2 stops
Qantas Airways Logo
13:40 - 19:52
CNS
-
BOS
44h 12m
2 stops
$2,319Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
16:59 - 12:55
BOS
-
CNS
29h 56m
2 stops
Qantas Airways Logo
13:40 - 19:52
CNS
-
BOS
44h 12m
2 stops
$2,321Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
16:59 - 12:55
BOS
-
CNS
29h 56m
2 stops
Qantas Airways Logo
06:50 - 21:27
CNS
-
BOS
28h 37m
2 stops
$2,324Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
07:00 - 11:50
BOS
-
CNS
38h 50m
2 stops
Qantas Airways Logo
15:45 - 23:28
CNS
-
BOS
45h 43m
2 stops
$2,388Qantas Airways
Sat, 29 Aug - Thu, 1 Oct
Multiple Airlines Logo
10:40 - 04:30
BOS
-
CNS
27h 50m
2 stops
Multiple Airlines Logo
19:15 - 22:40
CNS
-
BOS
41h 25m
3 stops
$2,391Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep

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Qatar Airways flights from Boston to Cairns

Our best Qatar Airways deals on Boston to Cairns flight tickets
Qatar Airways
11 Sept
BOS22:00Boston Logan Intl
35h 20m
2 stops
CNS23:20Cairns
15 Sept
CNS16:55Cairns
36h 20m
2 stops
BOS15:15Boston Logan Intl
$2,713
Qatar Airways
11 Sept
BOS22:00Boston Logan Intl
35h 20m
2 stops
CNS23:20Cairns
15 Sept
CNS16:55Cairns
36h 20m
2 stops
BOS15:15Boston Logan Intl
$2,715

United Airlines flights from Boston to Cairns

Our best United Airlines deals on Boston to Cairns flight tickets
United Airlines
28 Oct
BOS08:05Boston Logan Intl
36h 55m
2 stops
CNS11:00Cairns
1 Nov
CNS06:00Cairns
32h 40m
3 stops
BOS00:40Boston Logan Intl
$2,866
United Airlines
28 Oct
BOS09:45Boston Logan Intl
35h 15m
2 stops
CNS11:00Cairns
1 Nov
CNS06:00Cairns
32h 21m
2 stops
BOS00:21Boston Logan Intl
$2,868
United Airlines
28 Oct
BOS12:27Boston Logan Intl
36h 28m
3 stops
CNS14:55Cairns
1 Nov
CNS06:00Cairns
32h 40m
3 stops
BOS00:40Boston Logan Intl
$2,872

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 19 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

Tue 11/8

16:59-12:55

2 stops29h 56m

Cairns

Tue 18/8

06:50-19:42

2 stops26h 52m

$2,095

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

10:30-12:55

2 stops36h 25m

Cairns

Tue 18/8

13:40-22:06

2 stops46h 26m

$2,156

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 29/8

07:00-11:50

2 stops38h 50m

Cairns

Wed 30/9

06:50-19:52

2 stops27h 02m

$2,181

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

$2,295

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

$2,298

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

16:59-12:55

2 stops29h 56m

Cairns

Thu 17/9

13:40-19:52

2 stops44h 12m

$2,319

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

16:59-12:55

2 stops29h 56m

Cairns

Thu 17/9

13:40-19:52

2 stops44h 12m

$2,321

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

16:59-12:55

2 stops29h 56m

Cairns

Thu 17/9

06:50-21:27

2 stops28h 37m

$2,324

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 29/8

07:00-11:50

2 stops38h 50m

Cairns

Thu 1/10

15:45-23:28

2 stops45h 43m

$2,388

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

10:40-04:30

2 stops27h 50m

Cairns

Thu 17/9

19:15-22:40

3 stops41h 25m

$2,391

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

29h 56m

Direct flights

None
The fastest flight from Boston to Cairns takes 29h 56m
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 29h 56m, 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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