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$808+ Cheap flights from Boston (BOS) to Cairns (CNS)

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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 abril 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,923
(Kissandfly.com)

One-way from

$808
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,969
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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One-way flight from Boston Logan Intl to Cairns
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Highest demand for flights based on searches. 5% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($102 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 29, 2025.

This Kissandfly.com deal was found by Cheapflights users on 4/29. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/34:30 pmBOS - CNS
2 stops48h 55mMultiple Airlines
mié. 5/73:35 pmCNS - BOS
2 stops45h 25mMultiple Airlines
Deal found 4/29$1,923
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/37:00 pmBOS - CNS
3 stops54h 55mAir Canada
mié. 5/74:35 pmCNS - BOS
3 stops44h 03mAir Canada
Deal found 4/29$3,030
This AranGrant deal was found by Cheapflights users on 4/29. 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.
vie. 6/201:40 amBOS - CNS
2 stops43h 55mCathay Pacific
dom. 7/66:40 pmCNS - BOS
2 stops42h 20mCathay Pacific
Deal found 4/29$4,244
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/212:40 pmBOS - CNS
2 stops36h 20mSingapore Airlines
dom. 7/66:15 pmCNS - BOS
3 stops35h 58mSingapore Airlines
Deal found 4/29$4,339

Cheapflights Fare Finder

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 abril 29, 2025.
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

sáb. 6/21

6:12 pm-1:35 pm

2 stops29h 23m

Cairns

dom. 7/6

10:15 am-6:10 am

2 stops33h 55m

$3,755

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

vie. 6/20

1:40 am-11:35 am

2 stops43h 55m

Cairns

dom. 7/6

6:40 pm-11:00 pm

2 stops42h 20m

$4,244

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

sáb. 6/21

2:40 pm-5:00 pm

2 stops36h 20m

Cairns

dom. 7/6

6:15 pm-4:13 pm

3 stops35h 58m

$4,339

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

jue. 7/24

8:00 am-10:50 pm

2 stops48h 50m

$808

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

jue. 7/24

5:56 pm-10:50 pm

3 stops62h 54m

$1,524

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

jue. 7/24

1:35 pm-4:25 am

1 stop24h 50m

$7,164

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
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 AranGrant the most. AranGrant 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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Cairns

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 abril 29, 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 abril 29, 2025.
Japan Airlines
8.3
Very good
1,459 reviews

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

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
1,459 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

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.
Singapore Airlines
8.1
Very good
1,292 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

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
852 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

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.
Qantas Airways
7.5
Good
829 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

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
9,244 reviews
Japan Airlines
8.3
Very good
1,459 reviews

Food

7.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Crew

8.7

Entertainment

7.8

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 $3,030 on this airline. Additional options worth looking into are Cathay Pacific and Singapore Airlines, starting at $4,244 and $4,339 round-trip.

  • 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 $1,136). Flying from Boston to Cairns in December is currently the most expensive (average of $2,244). 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.

See more FAQs

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Alternative routes for Boston to Cairns

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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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,664Average$1,829FlexibilityNo cancel feeOn-time74%

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