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Cheap flights from Boston to Cairns from $1,072

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
25 Aug — 1 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Cairns

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Cairns
Explore the most affordable flight options available from Boston to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 July 2026.

Wed 9/910:30
BOS
-
CNS
2 stops36h 25m
Multiple Airlines
Wed 16/906:45
CNS
-
BOS
2 stops27h 07m
Multiple Airlines
Deal found 25/7$1,924
Mon 7/914:32
BOS
-
CNS
2 stops32h 23m
American Airlines
Thu 17/913:55
CNS
-
BOS
2 stops32h 18m
American Airlines
Deal found 26/7$1,994
Fri 21/816:59
BOS
-
CNS
2 stops29h 56m
American Airlines
Fri 28/813:55
CNS
-
BOS
2 stops31h 41m
American Airlines
Deal found 24/7$2,024
Tue 11/814:32
BOS
-
CNS
2 stops33h 13m
Qantas Airways
Tue 18/806:50
CNS
-
BOS
2 stops29h 16m
Qantas Airways
Deal found 21/7$2,041
Wed 12/813:02
BOS
-
CNS
2 stops32h 48m
Qantas Airways
Sun 23/813:40
CNS
-
BOS
2 stops44h 02m
Qantas Airways
Deal found 21/7$2,143
Tue 11/814:32
BOS
-
CNS
2 stops32h 23m
Qantas Airways
Mon 24/806:50
CNS
-
BOS
2 stops28h 15m
Qantas Airways
Deal found 21/7$2,160
Wed 12/814:32
BOS
-
CNS
2 stops32h 23m
Qantas Airways
Fri 21/806:50
CNS
-
BOS
2 stops28h 15m
Qantas Airways
Deal found 21/7$2,183
Mon 7/905:51
BOS
-
CNS
2 stops41h 04m
Qantas Airways
Thu 17/907:00
CNS
-
BOS
2 stops54h 28m
Qantas Airways
Deal found 23/7$2,193
Thu 13/815:59
BOS
-
CNS
2 stops30h 56m
Qantas Airways
Tue 18/806:50
CNS
-
BOS
2 stops26h 52m
Qantas Airways
Deal found 23/7$2,197
Tue 11/814:32
BOS
-
CNS
2 stops32h 23m
Qantas Airways
Sat 22/806:50
CNS
-
BOS
2 stops54h 54m
Qantas Airways
Deal found 21/7$2,206

Find flight deals from Boston to Cairns

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Cairns (CNS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 July 2026.

Round-trip from

$1,924

One-way from

$1,072
9/9-16/9
  • 9/9-16/9
  • 4 total stops
  • 63h 32m total
  • Boston to Cairns
Search Deals
American Airlines
  • American Airlines
  • 12/10
  • 2 total stops
  • 28h 10m total
  • Boston to Cairns
Search Deals

Cheapflights 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, Cheapflights users made 647,157 searches. Data last updated 26 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

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 7/9

14:32-12:55

2 stops32h 23m

Cairns

Thu 17/9

13:55-08:13

2 stops32h 18m

$1,994

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

14:32-13:45

2 stops33h 13m

Cairns

Tue 18/8

06:50-22:06

2 stops29h 16m

$2,041
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 13/8

18:13-12:55

2 stops28h 42m

Cairns

Tue 18/8

06:50-19:42

2 stops26h 52m

$2,204

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 13/8

18:13-12:55

2 stops28h 42m

Cairns

Mon 24/8

06:50-21:05

2 stops28h 15m

$2,232

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/8

14:32-13:45

2 stops33h 13m

Cairns

Thu 20/8

06:50-21:05

2 stops28h 15m

$2,232

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

$2,267

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 11/9

06:30-10:35

2 stops38h 05m

Cairns

Tue 15/9

13:40-22:29

2 stops46h 49m

$2,306

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 15/8

16:27-12:55

2 stops30h 28m

Cairns

Fri 21/8

12:35-23:37

2 stops49h 02m

$2,340
Cheapest one-way
Fastest single journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 12/10

17:45-11:55

2 stops28h 10m

$1,072

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 12/10

07:00-10:50

2 stops37h 50m

$1,132

Flights are sorted by cheapest return flights first.

Deals found on 26/7

Showing 1-10 of 12 resultsSorted by cheapest first
1
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Best time to book a flight from Boston to Cairns

Have a flexible travel schedule? Discover the best time to fly to Cairns from Boston with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Boston to Cairns. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Cairns?

    There are many flights that can get you from Boston to Cairns in 29h 56m. Fly via American Airlines or Qantas Airways to get the fastest option. The distance between Boston and Cairns is about 15517 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Boston to Cairns that include hotel bookings?

    Yes. In addition to deals on Boston to Cairns flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to Cairns?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Cairns.

  • Can I find deals for business class flights from Boston to Cairns?

    Yes. Cheapflights offers flight deals from Boston to Cairns by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Mission Beach
Trinity Beach

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Alternative routes for Boston to Cairns

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to Cairns?

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Why should you use Cheapflights to find cheap flight tickets from Boston to Cairns?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Cairns.

Can Cheapflights find flights from Boston to Cairns with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Cairns, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Boston to Cairns become cheaper?

Yes, Cheapflights offers price alerts on Boston to Cairns flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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