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Cheap flights from Boston to Cairns from $1,264

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
1 adult, Economy, 0 bags

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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
10:30 - 15:15
CNS
-
BOS
42h 45m
2 stops
$2,167Multiple 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
$2,177Qatar 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
$2,178Qatar Airways
Mon, 7 Sep - Thu, 17 Sep
American Airlines Logo
17:00 - 12:55
BOS
-
CNS
29h 55m
2 stops
American Airlines Logo
13:55 - 08:13
CNS
-
BOS
32h 18m
2 stops
$2,249American Airlines
Mon, 7 Sep - Thu, 17 Sep
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
$2,251American Airlines
Mon, 7 Sep - Thu, 17 Sep
Qantas Airways Logo
15:43 - 11:05
BOS
-
CNS
28h 22m
2 stops
Qantas Airways Logo
11:50 - 14:51
CNS
-
BOS
42h 01m
2 stops
$2,294Qantas Airways
Sun, 22 Nov - Sun, 6 Dec
Multiple Airlines Logo
06:00 - 14:55
BOS
-
CNS
41h 55m
3 stops
Multiple Airlines Logo
15:45 - 17:52
CNS
-
BOS
41h 07m
2 stops
$2,315Multiple Airlines
Sun, 22 Nov - Sun, 6 Dec
United Airlines Logo
16:15 - 20:20
BOS
-
CNS
38h 05m
2 stops
United Airlines Logo
06:00 - 21:21
CNS
-
BOS
29h 21m
2 stops
$2,341United Airlines
Wed, 15 Jul - Wed, 22 Jul
Multiple Airlines Logo
15:00 - 10:35
BOS
-
CNS
29h 35m
2 stops
Multiple Airlines Logo
13:15 - 18:40
CNS
-
BOS
43h 25m
2 stops
$2,466Multiple Airlines
Sun, 28 Jun - Tue, 28 Jul
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
$2,622Qantas Airways
Mon, 7 Sep - Thu, 17 Sep

American Airlines flights from Boston to Cairns

Our best American Airlines deals on Boston to Cairns flight tickets
American Airlines
7 Sept
BOS17:00Boston Logan Intl
29h 55m
2 stops
CNS12:55Cairns
17 Sept
CNS13:55Cairns
32h 18m
2 stops
BOS08:13Boston Logan Intl
$2,249
American Airlines
7 Sept
BOS16:27Boston Logan Intl
30h 28m
2 stops
CNS12:55Cairns
17 Sept
CNS13:55Cairns
32h 18m
2 stops
BOS08:13Boston Logan Intl
$2,251

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets
Qantas Airways
22 Nov
BOS15:43Boston Logan Intl
28h 22m
2 stops
CNS11:05Cairns
6 Dec
CNS11:50Cairns
42h 01m
2 stops
BOS14:51Boston Logan Intl
$2,294
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
$2,622
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
$2,624

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 4 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

10:30-15:15

2 stops42h 45m

$2,167

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

$2,177

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

$2,178
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

17:00-12:55

2 stops29h 55m

Cairns

Thu 17/9

13:55-08:13

2 stops32h 18m

$2,249

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

$2,251

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 22/11

15:43-11:05

2 stops28h 22m

Cairns

Sun 6/12

11:50-14:51

2 stops42h 01m

$2,294

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 22/11

06:00-14:55

3 stops41h 55m

Cairns

Sun 6/12

15:45-17:52

2 stops41h 07m

$2,315

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 15/7

16:15-20:20

2 stops38h 05m

Cairns

Wed 22/7

06:00-21:21

2 stops29h 21m

$2,341

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 28/6

15:00-10:35

2 stops29h 35m

Cairns

Tue 28/7

13:15-18:40

2 stops43h 25m

$2,466

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

$2,622

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?

Qantas Airways 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

32h 35m

Direct flights

None
The fastest flight from Boston to Cairns takes 32h 35m
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 32h 35m, 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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