How long is the flight from Boston to Cairns?

There are many flights that can get you from Boston to Cairns in 32h 24m. Fly via United Airlines, Qantas Airways, or Emirates to get the fastest option. The distance between Boston and Cairns is about 15517 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Cairns ranges from 20.0 - 430.0 inches per month. March is typically the wettest month, when rainfall can reach 430.0 mm. July is typically the driest time to visit Cairns when rainfall is around 20.0 mm.

If weather is an important factor for your trip to Cairns, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 21.0 C).

What is the cheapest time of day to fly from BOS to CNS?

When flying from Boston to Cairns, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$1,073+ Cheap Flights from Boston to Cairns

Cheap flight deals from Boston to Cairns

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 October 2026.

Mon 7/1214:29 -

2 stops29h 51m

Mon 14/1218:05 -

2 stops37h 17m

Deal found 22/10$2,433

Mon 7/1208:27 -

3 stops43h 48m

Mon 14/1217:40 -

3 stops44h 43m

Deal found 22/10$2,562

Mon 7/1214:36 -

3 stops32h 24m

Mon 14/1206:00 -

2 stops25h 55m

Deal found 22/10$2,695

Sun 8/1109:00 -

2 stops35h 50m

Wed 11/1111:40 -

2 stops35h 07m

Deal found 23/10$3,295

Sun 8/1122:10 -

2 stops45h 45m

Wed 11/1115:40 -

2 stops37h 15m

Deal found 22/10$3,349

Sun 8/1115:10 -

3 stops32h 45m

Wed 11/1115:45 -

3 stops45h 52m

Deal found 22/10$5,936

Sun 8/1113:32 -

3 stops34h 23m

Wed 11/1106:00 -

2 stops28h 19m

Deal found 22/10$12,404

Find flight deals from Boston to Cairns

Round-trip from	$2,433
One-way from	$1,073

7/12-14/12
4 total stops
67h 08m total
Boston to Cairns

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American Airlines
8/11-31/12
2 total stops
34h 05m total
Boston to Cairns

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Depart

Return

Price

Cheapest return flight

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Mon 9/11

18:45-11:50

2 stops50h 05m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,086

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Mon 9/11

12:39-04:35

3 stops48h 56m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,260

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Mon 28/12

14:20-14:55

2 stops33h 35m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,556

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Mon 28/12

20:40-19:05

2 stops55h 25m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$2,033

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Mon 28/12

09:26-22:40

3 stops46h 14m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$2,342

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Mon 7/12

08:27-19:15

3 stops43h 48m

Cairns

Mon 14/12

17:40-23:23

3 stops44h 43m

$2,562

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Mon 7/12

14:36-14:00

3 stops32h 24m

Cairns

Mon 14/12

06:00-16:55

2 stops25h 55m

$2,695

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Wed 6/1

17:25-04:35

3 stops44h 10m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$2,854

Fastest return journey

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Wed 6/1

14:21-13:35

2 stops32h 14m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$2,890

BostonCairns

BOS Boston Logan Intl - CNS Cairns

BOSCNS

Boston Logan Intl

Sun 8/11

09:00-11:50

2 stops35h 50m

Cairns

Wed 11/11

11:40-07:47

2 stops35h 07m

$3,295

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Showing 1-10 of 12 resultsSorted 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.

BOS-CNS

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

How long is the flight from Boston to Cairns?
There are many flights that can get you from Boston to Cairns in 32h 24m. Fly via United Airlines, Qantas Airways, or Emirates 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.

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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?

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Cheap flights from Boston to Cairns from $1,073

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Boston to Cairns

Cheapest flights from Boston to CairnsExplore 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 October 2026.

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 October 2026.

Best flights from Boston to CairnsDiscover carefully curated flight deals from Boston to Cairns that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Discover carefully curated flight deals from Boston to Cairns that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Boston to CairnsDiscover last-minute flight deals from Boston to Cairns. Data last updated 26 October 2026 and is based on user searches.

Discover last-minute flight deals from Boston to Cairns. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Boston to CairnsSearch for one-way flight options from Boston to Cairns. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Search for one-way flight options from Boston to Cairns. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

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Best time to book a flight from Boston to Cairns

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Related info for your journey

How long is the flight from Boston to Cairns?

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

How can I find direct flights from Boston to Cairns?

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

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Alternative routes for Boston to Cairns

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Other flights to Cairns

Explore flights to Cairns departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 26 October 2026.

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Complete your trip to Cairns by adding a car hire and/or hotel booking to your travel itinerary.

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Boston and Cairns flights

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

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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 October 2026.

Best flights from Boston to Cairns
Discover carefully curated flight deals from Boston to Cairns that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Boston to Cairns
Discover last-minute flight deals from Boston to Cairns. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Boston to Cairns
Search for one-way flight options from Boston to Cairns. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.