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Cheap flights from Boston to Cairns from $1,321

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
7 Jul — 14 Jul1
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 7 June 2026.

Mon 7/922:00
BOS
-
CNS
2 stops47h 25m
Qatar Airways
Thu 17/919:15
CNS
-
BOS
2 stops58h 00m
Qatar Airways
Deal found 5/6$2,157
Mon 17/816:15
BOS
-
CNS
2 stops33h 55m
Multiple Airlines
Mon 31/813:55
CNS
-
BOS
2 stops41h 12m
Multiple Airlines
Deal found 4/6$2,171
Sat 29/814:00
BOS
-
CNS
2 stops36h 40m
Multiple Airlines
Tue 8/906:00
CNS
-
BOS
2 stops25h 07m
Multiple Airlines
Deal found 6/6$2,238
Mon 7/917:00
BOS
-
CNS
2 stops29h 55m
American Airlines
Thu 17/913:55
CNS
-
BOS
2 stops32h 18m
American Airlines
Deal found 7/6$2,284
Sun 22/1115:43
BOS
-
CNS
2 stops28h 22m
Qantas Airways
Sun 6/1211:50
CNS
-
BOS
2 stops42h 01m
Qantas Airways
Deal found 3/6$2,329
Sun 22/1106:00
BOS
-
CNS
3 stops41h 55m
Multiple Airlines
Sun 6/1215:45
CNS
-
BOS
2 stops41h 07m
Multiple Airlines
Deal found 3/6$2,350
Sat 18/707:28
BOS
-
CNS
2 stops42h 27m
Multiple Airlines
Thu 30/716:55
CNS
-
BOS
2 stops38h 09m
Multiple Airlines
Deal found 6/6$2,634
Mon 7/911:53
BOS
-
CNS
3 stops35h 47m
Qantas Airways
Thu 17/912:35
CNS
-
BOS
2 stops48h 53m
Qantas Airways
Deal found 7/6$2,661

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 7 June 2026.

Round-trip from

$2,157

One-way from

$1,321
Qatar Airways
  • Qatar Airways
  • 7/9-17/9
  • 4 total stops
  • 105h 25m total
  • Boston to Cairns
Search Deals
United Airlines
  • United Airlines
  • 12/10
  • 3 total stops
  • 43h 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 7 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

22:00-11:25

2 stops47h 25m

Cairns

Thu 17/9

19:15-15:15

2 stops58h 00m

$2,157
Fastest return journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 17/8

16:15-16:10

2 stops33h 55m

Cairns

Mon 31/8

13:55-17:07

2 stops41h 12m

$2,171

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

$2,350

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 18/7

07:28-15:55

2 stops42h 27m

Cairns

Thu 30/7

16:55-17:04

2 stops38h 09m

$2,634

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

$2,661

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 29/8

12:30-13:40

3 stops35h 10m

Cairns

Tue 8/9

19:10-09:55

3 stops52h 45m

$2,810
Cheapest one-way

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 12/10

11:45-14:55

2 stops37h 10m

$1,321
Fastest single journey

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 12/10

13:00-04:30

1 stop25h 30m

$10,267

Flights are sorted by cheapest return flights first.

Deals found on 6/6

Sorted by cheapest first

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 47h 25m. Fly via Qatar Airways to get the fastest option. The distance between Boston and Cairns is about 15517 km.

  • 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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