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Cheap flights from Boston to Cairns from $1,314

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
22:00 - 09:50
BOS
-
CNS
45h 50m
2 stops
Multiple Airlines Logo
19:15 - 15:15
CNS
-
BOS
58h 00m
2 stops
$2,227Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Qatar Airways Logo
22:00 - 09:50
BOS
-
CNS
45h 50m
2 stops
Qatar Airways Logo
19:15 - 15:15
CNS
-
BOS
58h 00m
2 stops
$2,243Qatar Airways
Mon, 7 Sep - Thu, 17 Sep
Qatar Airways Logo
22:00 - 09:50
BOS
-
CNS
45h 50m
2 stops
Qatar Airways Logo
19:15 - 15:15
CNS
-
BOS
58h 00m
2 stops
$2,250Qatar Airways
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
22:00 - 09:50
BOS
-
CNS
45h 50m
2 stops
Multiple Airlines Logo
19:15 - 15:15
CNS
-
BOS
58h 00m
2 stops
$2,305Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
American Airlines Logo
17:33 - 12:55
BOS
-
CNS
29h 22m
2 stops
American Airlines Logo
15:45 - 08:35
CNS
-
BOS
30h 50m
2 stops
$2,383American Airlines
Sat, 4 Jul - Fri, 10 Jul
Qantas Airways Logo
06:00 - 13:40
BOS
-
CNS
41h 40m
3 stops
Qantas Airways Logo
12:35 - 23:28
CNS
-
BOS
48h 53m
2 stops
$2,853Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
11:53 - 13:40
BOS
-
CNS
35h 47m
3 stops
Qantas Airways Logo
12:35 - 23:28
CNS
-
BOS
48h 53m
2 stops
$2,858Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
11:53 - 13:40
BOS
-
CNS
35h 47m
3 stops
Qantas Airways Logo
12:35 - 23:28
CNS
-
BOS
48h 53m
2 stops
$2,859Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
11:53 - 13:40
BOS
-
CNS
35h 47m
3 stops
Qantas Airways Logo
12:35 - 23:28
CNS
-
BOS
48h 53m
2 stops
$2,868Qantas Airways
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
12:21 - 18:25
BOS
-
CNS
40h 04m
3 stops
Multiple Airlines Logo
21:40 - 18:40
CNS
-
BOS
35h 00m
2 stops
$2,928Multiple Airlines
Sat, 4 Jul - Fri, 10 Jul

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Qatar Airways flights from Boston to Cairns

Our best Qatar Airways deals on Boston to Cairns flight tickets
Qatar Airways
7 Sept
BOS22:00Boston Logan Intl
45h 50m
2 stops
CNS09:50Cairns
17 Sept
CNS19:15Cairns
58h 00m
2 stops
BOS15:15Boston Logan Intl
$2,243
Qatar Airways
7 Sept
BOS22:00Boston Logan Intl
45h 50m
2 stops
CNS09:50Cairns
17 Sept
CNS19:15Cairns
58h 00m
2 stops
BOS15:15Boston Logan Intl
$2,250

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets
Qantas Airways
7 Sept
BOS06:00Boston Logan Intl
41h 40m
3 stops
CNS13:40Cairns
17 Sept
CNS12:35Cairns
48h 53m
2 stops
BOS23:28Boston Logan Intl
$2,853
Qantas Airways
7 Sept
BOS11:53Boston Logan Intl
35h 47m
3 stops
CNS13:40Cairns
17 Sept
CNS12:35Cairns
48h 53m
2 stops
BOS23:28Boston Logan Intl
$2,858
Qantas Airways
7 Sept
BOS11:53Boston Logan Intl
35h 47m
3 stops
CNS13:40Cairns
17 Sept
CNS12:35Cairns
48h 53m
2 stops
BOS23:28Boston Logan Intl
$2,859

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 16 June 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

19:15-15:15

2 stops58h 00m

$2,227

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

22:00-09:50

2 stops45h 50m

Cairns

Thu 17/9

19:15-15:15

2 stops58h 00m

$2,243

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

22:00-09:50

2 stops45h 50m

Cairns

Thu 17/9

19:15-15:15

2 stops58h 00m

$2,250

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

22:00-09:50

2 stops45h 50m

Cairns

Thu 17/9

19:15-15:15

2 stops58h 00m

$2,305
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 4/7

17:33-12:55

2 stops29h 22m

Cairns

Fri 10/7

15:45-08:35

2 stops30h 50m

$2,383

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

06:00-13:40

3 stops41h 40m

Cairns

Thu 17/9

12:35-23:28

2 stops48h 53m

$2,853

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

11:53-13:40

3 stops35h 47m

Cairns

Thu 17/9

12:35-23:28

2 stops48h 53m

$2,858

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

11:53-13:40

3 stops35h 47m

Cairns

Thu 17/9

12:35-23:28

2 stops48h 53m

$2,859

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

11:53-13:40

3 stops35h 47m

Cairns

Thu 17/9

12:35-23:28

2 stops48h 53m

$2,868

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 4/7

12:21-18:25

3 stops40h 04m

Cairns

Fri 10/7

21:40-18:40

2 stops35h 00m

$2,928

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 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

45h 50m

Direct flights

None
The fastest flight from Boston to Cairns takes 45h 50m
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 45h 50m, 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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