What is the cheapest airline that flies from Boston Logan Intl to Cairns?

Qantas Airways and Cathay Pacific are the most popular carriers operating from Boston Logan Intl to Cairns

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 refreshed on a daily basis.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Cairns Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$739 Cheap Flights from Boston to Cairns in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Boston to Cairns

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:13 pm - 4:50 pm

BOS

CNS

35h 37m2 stops

5:35 pm - 5:04 pm

CNS

BOS

38h 29m2 stops

$1,432Qantas Airways

Sun, Feb 8 - Thu, Feb 12

11:00 am - 11:50 am

BOS

CNS

33h 50m2 stops

12:05 pm - 6:25 am

CNS

BOS

33h 20m2 stops

$1,538Multiple Airlines

Fri, Jan 16 - Fri, Jan 23

4:19 pm - 4:50 pm

BOS

CNS

33h 31m2 stops

5:35 pm - 3:06 pm

CNS

BOS

36h 31m2 stops

$1,571Qantas Airways

Sun, Feb 8 - Thu, Feb 12

2:13 pm - 11:50 am

BOS

CNS

30h 37m2 stops

3:35 pm - 6:25 am

CNS

BOS

29h 50m2 stops

$1,580Qantas Airways

Sun, Feb 1 - Wed, Feb 4

11:00 am - 11:50 am

BOS

CNS

33h 50m2 stops

6:00 am - 9:55 pm

CNS

BOS

30h 55m3 stops

$1,794Qantas Airways

Fri, Jan 16 - Fri, Jan 23

5:57 pm - 2:55 pm

BOS

CNS

53h 58m2 stops

6:00 am - 9:42 pm

CNS

BOS

30h 42m2 stops

$1,973United Airlines

Fri, Jan 16 - Fri, Jan 23

10:56 am - 2:00 pm

BOS

CNS

36h 04m2 stops

6:00 am - 11:57 pm

CNS

BOS

32h 57m3 stops

$2,027United Airlines

Sun, Feb 8 - Thu, Feb 12

3:40 pm - 5:20 pm

BOS

CNS

34h 40m3 stops

6:00 am - 6:02 pm

CNS

BOS

27h 02m3 stops

$2,121Multiple Airlines

Fri, Jan 16 - Fri, Jan 23

12:30 am - 9:55 am

BOS

CNS

42h 25m1 stop

11:25 am - 10:00 pm

CNS

BOS

25h 35m1 stop

$2,152Cathay Pacific

Sat, Feb 7 - Thu, Feb 12

9:51 am - 9:55 am

BOS

CNS

33h 04m2 stops

11:25 am - 10:00 pm

CNS

BOS

25h 35m1 stop

$2,176Cathay Pacific

Sun, Feb 8 - Thu, Feb 12

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets

Qantas Airways

Feb 8

BOS2:13 pmBoston Logan Intl

35h 37m

2 stops

CNS4:50 pmCairns

Feb 12

CNS5:35 pmCairns

38h 29m

2 stops

BOS5:04 pmBoston Logan Intl

$1,432

Find similar

Qantas Airways

Feb 8

BOS4:19 pmBoston Logan Intl

33h 31m

2 stops

CNS4:50 pmCairns

Feb 12

CNS5:35 pmCairns

36h 31m

2 stops

BOS3:06 pmBoston Logan Intl

$1,571

Find similar

Qantas Airways

Feb 1

BOS2:13 pmBoston Logan Intl

30h 37m

2 stops

CNS11:50 amCairns

Feb 4

CNS3:35 pmCairns

29h 50m

2 stops

BOS6:25 amBoston Logan Intl

$1,580

Find similar

United Airlines flights from Boston to Cairns

Our best United Airlines deals on Boston to Cairns flight tickets

United Airlines

Jan 16

BOS5:57 pmBoston Logan Intl

53h 58m

2 stops

CNS2:55 pmCairns

Jan 23

CNS6:00 amCairns

30h 42m

2 stops

BOS9:42 pmBoston Logan Intl

$1,973

Find similar

United Airlines

Feb 8

BOS10:56 amBoston Logan Intl

36h 04m

2 stops

CNS2:00 pmCairns

Feb 12

CNS6:00 amCairns

32h 57m

3 stops

BOS11:57 pmBoston Logan Intl

$2,027

Find similar

United Airlines

Jan 16

BOS5:45 amBoston Logan Intl

42h 10m

3 stops

CNS2:55 pmCairns

Jan 23

CNS6:00 amCairns

26h 13m

2 stops

BOS5:13 pmBoston Logan Intl

$2,572

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 2/8

2:13 pm-4:50 pm

2 stops35h 37m

Cairns

Thu 2/12

5:35 pm-5:04 pm

2 stops38h 29m

$1,432

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 1/16

11:00 am-11:50 am

2 stops33h 50m

Cairns

Fri 1/23

12:05 pm-6:25 am

2 stops33h 20m

$1,538

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 2/8

4:19 pm-4:50 pm

2 stops33h 31m

Cairns

Thu 2/12

5:35 pm-3:06 pm

2 stops36h 31m

$1,571

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 2/1

2:13 pm-11:50 am

2 stops30h 37m

Cairns

Wed 2/4

3:35 pm-6:25 am

2 stops29h 50m

$1,580

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 1/16

11:00 am-11:50 am

2 stops33h 50m

Cairns

Fri 1/23

6:00 am-9:55 pm

3 stops30h 55m

$1,794

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 1/16

5:57 pm-2:55 pm

2 stops53h 58m

Cairns

Fri 1/23

6:00 am-9:42 pm

2 stops30h 42m

$1,973

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 2/8

10:56 am-2:00 pm

2 stops36h 04m

Cairns

Thu 2/12

6:00 am-11:57 pm

3 stops32h 57m

$2,027

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 1/16

3:40 pm-5:20 pm

3 stops34h 40m

Cairns

Fri 1/23

6:00 am-6:02 pm

3 stops27h 02m

$2,121

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 2/7

12:30 am-9:55 am

1 stop42h 25m

Cairns

Thu 2/12

11:25 am-10:00 pm

1 stop25h 35m

$2,152

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 2/8

9:51 am-9:55 am

2 stops33h 04m

Cairns

Thu 2/12

11:25 am-10:00 pm

1 stop25h 35m

$2,176

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Cairns?

Our data shows that Wednesday is the least expensive day to fly to Cairns. Tickets to fly out on this day can be as low as $1,714. The most expensive day to fly to Cairns is Tuesday, with ticket prices averaging around $1,843.

What is the cheapest time of day to depart on your flight to Cairns?

Our data shows that the cheapest Boston to Cairns flights are usually those with departure times in the afternoon. Our users have found flights to Cairns in the afternoon for as low as $1,822. At noon is when there is more demand to fly to Cairns, so prices are often more expensive at around $2,361 per ticket.

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 round-trip 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	33h 50m
Direct flights	None

The fastest flight from Boston to Cairns takes 33h 50m

There are no direct flights from Boston to Cairns. There are no popular flight routes from Boston to Cairns.

Search flight deals

How far is Boston Logan Intl to Cairns by plane?
There are 9641.2 mi between Boston Logan Intl and Cairns. 25h 20m is a normal flight duration for this route.
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 refreshed on a daily basis.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Cairns Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Port Douglas

Mission Beach

Palm Cove

Trinity Beach

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Cairns?

It is quick and easy to find Boston to Cairns flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cairns that suits you.

Can I find flights from Boston to Cairns with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cairns from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Cairns?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Cairns.

I’m not ready to book a flight from Boston to Cairns right now. Can momondo alert me if prices change?

Price alerts on flights to Cairns from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Cairns trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 1/3

Sat 1/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Airports servicing Queensland

Popular cities in Australia

Flights to Sydneyfrom $648

Flights to Melbournefrom $670

Flights to Brisbanefrom $662

Flights to Perthfrom $876

Flights to Adelaidefrom $675

Flights to Coolangattafrom $994

Flights to Hobartfrom $983

Flights to Canberrafrom $976

Flights to Darwinfrom $1,304

Flights to Maroochydorefrom $978

Flights to Launcestonfrom $996

Flights to Proserpinefrom $1,571

Cheap flights from Boston to Cairns from $739

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 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Boston to Cairns

Cheap round-trip flights

Cheap one-way flights

Qantas Airways flights from Boston to Cairns

Our best Qantas Airways deals on Boston to Cairns flight tickets

United Airlines flights from Boston to Cairns

Our best United Airlines deals on Boston to Cairns flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Boston to Cairns that are best for you.

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 day to depart on your flight to Cairns?

Our data shows that Wednesday is the least expensive day to fly to Cairns. Tickets to fly out on this day can be as low as $1,714. The most expensive day to fly to Cairns is Tuesday, with ticket prices averaging around $1,843.

What is the cheapest time of day to depart on your flight to Cairns?

What is the cheapest airline that flies from Boston Logan Intl to Cairns?

Qantas Airways and Cathay Pacific are the most popular carriers operating from Boston Logan Intl to Cairns

When to book flights from Boston to Cairns

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

Direct flights

How far is Boston Logan Intl to Cairns by plane?

When did momondo last update prices for flights from Boston Logan Intl Airport to Cairns Airport?

How old do you have to be to fly from Boston Logan Intl Airport to Cairns Airport?

What documentation or ID do you need to fly to Cairns Airport?

Traveling to a place near Cairns?

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Cairns?

Can I find flights from Boston to Cairns with flexible booking policies on momondo?

How can momondo help me find flights from Boston to Cairns?

I’m not ready to book a flight from Boston to Cairns right now. Can momondo alert me if prices change?

An easier way to manage your Cairns trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing Queensland