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$2,041+ 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
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 April 3, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$3,754
(AranGrant)

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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Highest demand for flights based on searches. 6% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($103 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 April 3, 2025.

This Trip.com deal was found by Cheapflights users on 4/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/31:40 amBOS - CNS
2 stops41h 35mMultiple Airlines
Sun 4/67:00 pmCNS - BOS
2 stops66h 00mMultiple Airlines
Deal found 4/2$2,041
This Justfly.com deal was found by Cheapflights users on 4/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/44:06 pmBOS - CNS
2 stops29h 29mQantas Airways
Sun 4/61:40 pmCNS - BOS
3 stops47h 46mQantas Airways
Deal found 4/2$2,861
This oojo deal was found by Cheapflights users on 4/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/217:30 amBOS - CNS
2 stops43h 30mSingapore Airlines
Sun 7/66:15 pmCNS - BOS
3 stops35h 58mSingapore Airlines
Deal found 4/2$4,091

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 April 3, 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

Sat 6/21

6:06 pm-4:30 pm

2 stops32h 24m

Cairns

Sun 7/6

4:10 pm-6:10 am

2 stops28h 00m

$3,754

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 6/21

7:30 am-5:00 pm

2 stops43h 30m

Cairns

Sun 7/6

6:15 pm-4:13 pm

3 stops35h 58m

$4,091

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

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 April.
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.

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 April 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 April 3, 2025.
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Overall

8.1

Food

7.7

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Singapore Airlines
8.1
Very good
1,288 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Overall

8.1

Food

7.7

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

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 is the cheapest airline to fly from Boston to Cairns round-trip?

    Our cheapest airline available from Boston to Cairns is Singapore Airlines. Our recent data shows that you can find tickets from as low as $4,091 on this airline.

  • 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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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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,664Average$1,829FlexibilityNo cancel feeOn-time74%

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