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Cheap flights from Boston to Cairns from $1,059

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
6 Mar — 13 Mar1
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 4 February 2026.

Wed 18/210:48
BOS
-
CNS
2 stops32h 57m
Qantas Airways
Fri 27/214:50
CNS
-
BOS
2 stops48h 09m
Qantas Airways
Deal found 2/2$2,133
Tue 8/922:00
BOS
-
CNS
2 stops35h 20m
Qatar Airways
Fri 18/909:20
CNS
-
BOS
2 stops43h 55m
Qatar Airways
Deal found 3/2$2,142
Tue 8/906:00
BOS
-
CNS
3 stops43h 55m
Multiple Airlines
Fri 18/919:10
CNS
-
BOS
3 stops52h 45m
Multiple Airlines
Deal found 3/2$2,148
Sat 21/309:30
BOS
-
CNS
2 stops35h 30m
American Airlines
Sat 28/315:35
CNS
-
BOS
2 stops28h 56m
American Airlines
Deal found 3/2$2,203
Wed 10/615:00
BOS
-
CNS
2 stops30h 05m
Multiple Airlines
Sat 20/606:45
CNS
-
BOS
2 stops38h 14m
Multiple Airlines
Deal found 4/2$2,275
Sat 28/216:04
BOS
-
CNS
2 stops33h 46m
Qantas Airways
Wed 4/314:50
CNS
-
BOS
2 stops39h 23m
Qantas Airways
Deal found 3/2$2,370
Sun 22/214:36
BOS
-
CNS
2 stops30h 14m
Qantas Airways
Wed 25/211:35
CNS
-
BOS
2 stops57h 39m
Qantas Airways
Deal found 2/2$2,425
Sun 12/716:25
BOS
-
CNS
2 stops40h 40m
Multiple Airlines
Fri 24/711:00
CNS
-
BOS
2 stops41h 40m
Multiple Airlines
Deal found 2/2$2,594
Wed 18/208:00
BOS
-
CNS
2 stops39h 00m
United Airlines
Fri 27/206:00
CNS
-
BOS
3 stops32h 57m
United Airlines
Deal found 2/2$2,602
Sat 21/321:40
BOS
-
CNS
2 stops35h 25m
Multiple Airlines
Sat 28/312:35
CNS
-
BOS
3 stops40h 53m
Multiple Airlines
Deal found 3/2$2,631

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 4 February 2026.

Round-trip from

$2,133

One-way from

$1,059
Qantas Airways
  • Qantas Airways
  • 18/2-27/2
  • 4 total stops
  • 81h 06m total
  • Boston to Cairns
Search Deals
American Airlines
  • American Airlines
  • 16/5
  • 2 total stops
  • 28h 05m 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 4 February 2026.
Use the filters below to find and compare flights from Boston to Cairns that are best for you.

Fly from

Boston

Fly to

Cairns

Route

Depart

Return

Price

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 18/2

10:48-10:45

2 stops32h 57m

Cairns

Fri 27/2

14:50-23:59

2 stops48h 09m

$2,133

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 21/3

09:30-11:00

2 stops35h 30m

Cairns

Sat 28/3

15:35-06:31

2 stops28h 56m

$2,203

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 10/6

15:00-11:05

2 stops30h 05m

Cairns

Sat 20/6

06:45-06:59

2 stops38h 14m

$2,275

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 28/2

10:10-23:05

2 stops45h 55m

Cairns

Wed 4/3

17:35-15:13

2 stops36h 38m

$2,370

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 22/2

14:36-11:50

2 stops30h 14m

Cairns

Wed 25/2

11:35-06:14

2 stops57h 39m

$2,425

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 12/7

16:25-23:05

2 stops40h 40m

Cairns

Fri 24/7

11:00-14:40

2 stops41h 40m

$2,594

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 18/2

08:00-14:00

2 stops39h 00m

Cairns

Fri 27/2

06:00-23:57

3 stops32h 57m

$2,602

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 21/3

21:40-23:05

2 stops35h 25m

Cairns

Sat 28/3

12:35-15:28

3 stops40h 53m

$2,631

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 12/7

05:45-15:55

3 stops44h 10m

Cairns

Fri 24/7

06:00-23:58

3 stops31h 58m

$2,714

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 16/5

17:00-11:05

2 stops28h 05m

$1,059

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 12 results
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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 32h 57m. Fly via Qantas Airways or American Airlines 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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Boston to Townsville flights
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Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Cairns from Boston today with Cheapflights!

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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