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$1,139+ Cheap flights from Boston (BOS) to Cairns (CNS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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Cheap 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 March 3, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,139
(Booking.com)

Popular in

December

Cheapest in

March

Average price

$1,642
Provider with most accurate pricing for Boston Logan Intl-Cairns flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Cairns flights.
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From Boston Logan Intl to Cairns
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Highest demand for flights based on searches. 3% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($108 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Boston to Cairns

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 March 3, 2025.

This Booking.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/13:40 pmBOS - CNS
3 stops32h 35mAir Canada
Tue 4/86:00 amCNS - BOS
3 stops28h 02mAir Canada
Deal found 3/2$1,139
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/15:30 pmBOS - CNS
2 stops35h 40mUnited Airlines
Tue 4/86:00 amCNS - BOS
2 stops40h 12mUnited Airlines
Deal found 3/2$1,252
This Ovago deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/91:30 amBOS - CNS
2 stops40h 45mMultiple Airlines
Wed 3/1912:45 pmCNS - BOS
2 stops48h 15mMultiple Airlines
Deal found 3/3$2,200
This Cathay Pacific deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/171:30 amBOS - CNS
1 stop43h 00mCathay Pacific
Sat 3/2212:45 pmCNS - BOS
2 stops72h 15mCathay Pacific
Deal found 3/2$2,279
This SWISS deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1810:55 pmBOS - CNS
2 stops52h 25mSWISS
Sat 3/2212:00 pmCNS - BOS
2 stops47h 20mSWISS
Deal found 3/2$4,001
This AranGrant deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/215:29 pmBOS - CNS
2 stops33h 31mSingapore Airlines
Sun 7/66:15 pmCNS - BOS
3 stops37h 13mSingapore Airlines
Deal found 3/2$4,289
This Ovago deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/101:15 pmBOS - CNS
1 stop25h 20mJapan Airlines
Wed 3/1912:30 pmCNS - BOS
2 stops43h 50mJapan Airlines
Deal found 3/3$10,582

Find flights from Boston to Cairns within your budget

Customize 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 2,558,603 searches. Data last updated March 3, 2025.

Fly from

Boston

Fly to

Cairns

Route

Depart

Return

Price

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 4/1

3:40 pm-2:15 pm

3 stops32h 35m

Cairns

Tue 4/8

6:00 am-8:02 pm

3 stops28h 02m

$1,139

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 4/1

5:30 pm-7:10 pm

2 stops35h 40m

Cairns

Tue 4/8

6:00 am-8:12 am

2 stops40h 12m

$1,252

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 3/9

1:30 am-8:15 am

2 stops40h 45m

Cairns

Wed 3/19

12:45 pm-11:00 pm

2 stops48h 15m

$2,200

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 3/17

1:30 am-10:30 am

1 stop43h 00m

Cairns

Sat 3/22

12:45 pm-11:00 pm

2 stops72h 15m

$2,279

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 3/18

10:55 pm-5:20 pm

2 stops52h 25m

Cairns

Sat 3/22

12:00 pm-9:20 pm

2 stops47h 20m

$4,001

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 3/10

1:15 pm-4:35 am

1 stop25h 20m

Cairns

Wed 3/19

12:30 pm-6:20 pm

2 stops43h 50m

$10,582

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Compare providers for flights from Boston to Cairns

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Cairns in March.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Cairns flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Cairns flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Cairns flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Cairns flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Cairns flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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.

Travel insights for flights from Boston to Cairns

Get recent, data-driven insights about flights from Boston to Cairns including ideal travel times, pricing trends, and more.

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

Find hourly flight availability from Boston to Cairns. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

One of the essential ways to save on airfare from Boston to Cairns is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 23% on airfare.

Rainfall in Cairns by month

Plan your trip to Cairns by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cairns ranges from 0.8 - 16.9 inches per month. March is typically the wettest month, when rainfall can reach 16.9 in. July is typically the driest time to visit Cairns when rainfall is around 0.8 in.

Temperature in Cairns by month

Plan your trip to Cairns by taking into account the average temperature totals by month.

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 80.6 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Cairns

Get insights into the airlines that provide service to Cairns. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cairns. Reviews last updated March 3, 2025.
Japan Airlines
8.3
Very good
1,435 reviews

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Japan Airlines
8.3
Very good
1,435 reviews
Japan Airlines
8.3
Very good
1,435 reviews

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Cathay Pacific
7.5
Good
825 reviews
Japan Airlines
8.3
Very good
1,435 reviews

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

SWISS
7.5
Good
1,562 reviews
Japan Airlines
8.3
Very good
1,435 reviews

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

United Airlines
7.4
Good
8,679 reviews
Japan Airlines
8.3
Very good
1,435 reviews

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Air Canada
7.0
Good
8,829 reviews
Japan Airlines
8.3
Very good
1,435 reviews

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

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.

  • What are the cheapest airlines flying from Boston to Cairns round-trip?

    Our cheapest airline available from Boston to Cairns is Air Canada. Our recent data shows that you can find tickets from as low as $1,139 on this airline. Additional options worth looking into are United Airlines and Cathay Pacific, starting at $1,252 and $2,279 round-trip. Air Canada is currently priced 46% below the average price you’ll pay for this route.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Boston to Cairns?

    Currently, February is the cheapest month in which you can book a flight from Boston to Cairns (average of $1,134). Flying from Boston to Cairns in December is currently the most expensive (average of $2,397). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Boston to Cairns

Discover the top airline that operate flights from Boston to Cairns. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,664Average$1,815FlexibilityNo cancel feeOn-time74%
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