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Cheap flights from Boston to Cairns from $1,187

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
$2,162Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
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
$2,262Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
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
$2,264Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
United Airlines Logo
16:15 - 11:10
BOS
-
CNS
28h 55m
2 stops
United Airlines Logo
06:00 - 21:21
CNS
-
BOS
29h 21m
2 stops
$2,409United Airlines
Fri, 5 Jun - Tue, 23 Jun
United Airlines Logo
20:20 - 11:10
BOS
-
CNS
48h 50m
2 stops
United Airlines Logo
06:00 - 21:21
CNS
-
BOS
29h 21m
2 stops
$2,429United Airlines
Thu, 4 Jun - Tue, 23 Jun
United Airlines Logo
09:07 - 11:10
BOS
-
CNS
36h 03m
2 stops
United Airlines Logo
06:00 - 01:11
CNS
-
BOS
33h 11m
2 stops
$2,661United Airlines
Fri, 5 Jun - Sun, 21 Jun
United Airlines Logo
20:20 - 11:10
BOS
-
CNS
48h 50m
2 stops
United Airlines Logo
06:00 - 01:11
CNS
-
BOS
33h 11m
2 stops
$2,682United Airlines
Thu, 4 Jun - Sun, 21 Jun
United Airlines Logo
09:07 - 11:10
BOS
-
CNS
36h 03m
2 stops
United Airlines Logo
06:00 - 18:59
CNS
-
BOS
26h 59m
2 stops
$2,700United Airlines
Sun, 28 Jun - Tue, 28 Jul
Qantas Airways Logo
16:29 - 16:15
BOS
-
CNS
33h 46m
2 stops
Qantas Airways Logo
13:40 - 20:38
CNS
-
BOS
44h 58m
2 stops
$2,742Qantas Airways
Thu, 4 Jun - Sat, 20 Jun
United Airlines Logo
16:15 - 11:10
BOS
-
CNS
28h 55m
2 stops
United Airlines Logo
06:00 - 21:21
CNS
-
BOS
29h 21m
2 stops
$2,770United Airlines
Fri, 5 Jun - Wed, 24 Jun

United Airlines flights from Boston to Cairns

Our best United Airlines deals on Boston to Cairns flight tickets
United Airlines
5 June
BOS16:15Boston Logan Intl
28h 55m
2 stops
CNS11:10Cairns
23 June
CNS06:00Cairns
29h 21m
2 stops
BOS21:21Boston Logan Intl
$2,409
United Airlines
4 June
BOS20:20Boston Logan Intl
48h 50m
2 stops
CNS11:10Cairns
23 June
CNS06:00Cairns
29h 21m
2 stops
BOS21:21Boston Logan Intl
$2,429
United Airlines
5 June
BOS09:07Boston Logan Intl
36h 03m
2 stops
CNS11:10Cairns
21 June
CNS06:00Cairns
33h 11m
2 stops
BOS01:11Boston Logan Intl
$2,661

Emirates flights from Boston to Cairns

Our best Emirates deals on Boston to Cairns flight tickets
Emirates
2 June
BOS23:05Boston Logan Intl
67h 35m
2 stops
CNS08:40Cairns
26 June
CNS17:00Cairns
59h 10m
2 stops
BOS14:10Boston Logan Intl
$2,965
Emirates
2 June
BOS23:05Boston Logan Intl
67h 35m
2 stops
CNS08:40Cairns
24 June
CNS15:45Cairns
36h 25m
2 stops
BOS14:10Boston Logan Intl
$2,979
Emirates
2 June
BOS23:05Boston Logan Intl
67h 35m
2 stops
CNS08:40Cairns
25 June
CNS10:10Cairns
42h 00m
2 stops
BOS14:10Boston Logan Intl
$2,990

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 25 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

$2,162

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

$2,262

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

$2,264
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 5/6

16:15-11:10

2 stops28h 55m

Cairns

Tue 23/6

06:00-21:21

2 stops29h 21m

$2,409

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 4/6

20:20-11:10

2 stops48h 50m

Cairns

Tue 23/6

06:00-21:21

2 stops29h 21m

$2,429

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 5/6

09:07-11:10

2 stops36h 03m

Cairns

Sun 21/6

06:00-01:11

2 stops33h 11m

$2,661

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 4/6

20:20-11:10

2 stops48h 50m

Cairns

Sun 21/6

06:00-01:11

2 stops33h 11m

$2,682

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 28/6

09:07-11:10

2 stops36h 03m

Cairns

Tue 28/7

06:00-18:59

2 stops26h 59m

$2,700

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 4/6

16:29-16:15

2 stops33h 46m

Cairns

Sat 20/6

13:40-20:38

2 stops44h 58m

$2,742

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 5/6

16:15-11:10

2 stops28h 55m

Cairns

Wed 24/6

06:00-21:21

2 stops29h 21m

$2,770

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

29h 30m

Direct flights

None
The fastest flight from Boston to Cairns takes 29h 30m
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 30m, 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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