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Cheap flights from Boston to Cairns from $913

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 5/8. 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
14:33 - 11:50
BOS
-
CNS
31h 17m
2 stops
Qantas Airways Logo
12:35 - 21:53
CNS
-
BOS
47h 18m
2 stops
$1,765Qantas Airways
Mon, 10 Aug - Fri, 28 Aug
Qantas Airways Logo
14:02 - 11:50
BOS
-
CNS
31h 48m
2 stops
Qantas Airways Logo
17:00 - 08:04
CNS
-
BOS
53h 04m
2 stops
$1,809Qantas Airways
Sat, 11 Apr - Sat, 18 Apr
American Airlines Logo
18:07 - 12:40
BOS
-
CNS
28h 33m
2 stops
American Airlines Logo
15:45 - 06:59
CNS
-
BOS
29h 14m
2 stops
$1,976American Airlines
Thu, 2 Jul - Thu, 23 Jul
United Airlines Logo
09:07 - 11:10
BOS
-
CNS
36h 03m
2 stops
United Airlines Logo
06:00 - 23:54
CNS
-
BOS
31h 54m
3 stops
$2,358United Airlines
Mon, 10 Aug - Fri, 28 Aug
Multiple Airlines Logo
06:15 - 15:55
BOS
-
CNS
43h 40m
3 stops
Multiple Airlines Logo
18:20 - 23:05
CNS
-
BOS
42h 45m
2 stops
$2,452Multiple Airlines
Sat, 11 Apr - Sat, 18 Apr
Multiple Airlines Logo
18:00 - 12:40
BOS
-
CNS
28h 40m
2 stops
Multiple Airlines Logo
15:45 - 09:26
CNS
-
BOS
31h 41m
3 stops
$2,485Multiple Airlines
Thu, 2 Jul - Thu, 23 Jul
Multiple Airlines Logo
13:00 - 13:40
BOS
-
CNS
34h 40m
3 stops
Multiple Airlines Logo
19:10 - 22:39
CNS
-
BOS
41h 29m
3 stops
$2,589Multiple Airlines
Sat, 11 Apr - Sat, 18 Apr
Emirates Logo
23:05 - 11:50
BOS
-
CNS
46h 45m
2 stops
Emirates Logo
18:20 - 14:10
CNS
-
BOS
57h 50m
2 stops
$2,766Emirates
Mon, 13 Apr - Mon, 20 Apr
Qantas Airways Logo
15:00 - 17:35
BOS
-
CNS
36h 35m
2 stops
Qantas Airways Logo
11:20 - 16:35
CNS
-
BOS
43h 15m
2 stops
$2,981Qantas Airways
Fri, 10 Jul - Sun, 26 Jul
Qantas Airways Logo
18:00 - 17:35
BOS
-
CNS
33h 35m
2 stops
Qantas Airways Logo
11:20 - 23:29
CNS
-
BOS
50h 09m
2 stops
$2,982Qantas Airways
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
10 Aug
BOS14:33Boston Logan Intl
31h 17m
2 stops
CNS11:50Cairns
28 Aug
CNS12:35Cairns
47h 18m
2 stops
BOS21:53Boston Logan Intl
$1,765
Qantas Airways
11 Apr
BOS14:02Boston Logan Intl
31h 48m
2 stops
CNS11:50Cairns
18 Apr
CNS17:00Cairns
53h 04m
2 stops
BOS08:04Boston Logan Intl
$1,809
Qantas Airways
10 July
BOS18:00Boston Logan Intl
33h 35m
2 stops
CNS17:35Cairns
26 July
CNS13:55Cairns
40h 40m
2 stops
BOS16:35Boston Logan Intl
$2,957

Air Canada flights from Boston to Cairns

Our best Air Canada deals on Boston to Cairns flight tickets
Air Canada
5 Mar
BOS06:15Boston Logan Intl
41h 40m
3 stops
CNS14:55Cairns
9 Mar
CNS17:35Cairns
43h 02m
3 stops
BOS22:37Boston Logan Intl
$3,062
Air Canada
10 Aug
BOS15:35Boston Logan Intl
34h 20m
3 stops
CNS15:55Cairns
28 Aug
CNS06:00Cairns
29h 27m
3 stops
BOS21:27Boston Logan Intl
$3,433
Air Canada
2 July
BOS12:30Boston Logan Intl
37h 25m
3 stops
CNS15:55Cairns
23 July
CNS19:15Cairns
41h 23m
3 stops
BOS22:38Boston Logan Intl
$4,028

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 28 February 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

Mon 10/8

14:33-11:50

2 stops31h 17m

Cairns

Fri 28/8

12:35-21:53

2 stops47h 18m

$1,765

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 11/4

14:02-11:50

2 stops31h 48m

Cairns

Sat 18/4

17:00-08:04

2 stops53h 04m

$1,809

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 2/7

18:07-12:40

2 stops28h 33m

Cairns

Thu 23/7

15:45-06:59

2 stops29h 14m

$1,976

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 10/8

09:07-11:10

2 stops36h 03m

Cairns

Fri 28/8

06:00-23:54

3 stops31h 54m

$2,358

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 11/4

06:15-15:55

3 stops43h 40m

Cairns

Sat 18/4

18:20-23:05

2 stops42h 45m

$2,452

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 2/7

18:00-12:40

2 stops28h 40m

Cairns

Thu 23/7

15:45-09:26

3 stops31h 41m

$2,485

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 11/4

13:00-13:40

3 stops34h 40m

Cairns

Sat 18/4

19:10-22:39

3 stops41h 29m

$2,589

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 13/4

23:05-11:50

2 stops46h 45m

Cairns

Mon 20/4

18:20-14:10

2 stops57h 50m

$2,766

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 10/7

15:00-17:35

2 stops36h 35m

Cairns

Sun 26/7

11:20-16:35

2 stops43h 15m

$2,981

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 10/7

18:00-17:35

2 stops33h 35m

Cairns

Sun 26/7

11:20-23:29

2 stops50h 09m

$2,982

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

29h 24m

Direct flights

None
The fastest flight from Boston to Cairns takes 29h 24m
There are no direct flights from Boston to Cairns. There are no popular flight routes from Boston to Cairns.
Search flight deals

  • 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 24m, 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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