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$1,254+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
1 adult, Economy
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Cheap 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 May 10, 2026.

This American Airlines deal was found by Cheapflights users on 5/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:29 pm
BOS
-
CNS
2 stops32h 31m
American Airlines
Mon 6/153:45 pm
CNS
-
BOS
2 stops28h 50m
American Airlines
Deal found 5/9$1,254
This BusinessClass deal was found by Cheapflights users on 5/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:29 pm
BOS
-
CNS
2 stops28h 46m
Multiple Airlines
Mon 6/1511:20 am
CNS
-
BOS
3 stops42h 19m
Multiple Airlines
Deal found 5/9$1,568
This KAYAK deal was found by Cheapflights users on 5/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:37 pm
BOS
-
CNS
2 stops53h 03m
Multiple Airlines
Sun 8/309:40 pm
CNS
-
BOS
2 stops35h 02m
Multiple Airlines
Deal found 5/7$1,651
This oojo deal was found by Cheapflights users on 5/9. 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.
Mon 9/710:00 pm
BOS
-
CNS
2 stops45h 50m
Qatar Airways
Thu 9/177:15 pm
CNS
-
BOS
2 stops58h 00m
Qatar Airways
Deal found 5/9$1,666
This oojo deal was found by Cheapflights users on 5/6. 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.
Mon 9/710:00 pm
BOS
-
CNS
2 stops45h 50m
Multiple Airlines
Thu 9/171:40 pm
CNS
-
BOS
2 stops63h 35m
Multiple Airlines
Deal found 5/6$1,689
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:00 pm
BOS
-
CNS
2 stops31h 55m
American Airlines
Sat 7/113:45 pm
CNS
-
BOS
2 stops30h 50m
American Airlines
Deal found 5/10$1,786
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/210:30 am
BOS
-
CNS
2 stops34h 05m
American Airlines
Sat 7/113:45 pm
CNS
-
BOS
2 stops30h 50m
American Airlines
Deal found 5/7$1,803
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:33 pm
BOS
-
CNS
2 stops29h 22m
American Airlines
Sat 7/113:45 pm
CNS
-
BOS
2 stops30h 50m
American Airlines
Deal found 5/7$1,809
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:00 pm
BOS
-
CNS
2 stops41h 25m
Multiple Airlines
Sun 9/66:50 am
CNS
-
BOS
2 stops26h 52m
Multiple Airlines
Deal found 5/8$1,988

Find 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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,254
(American Airlines)
Provider with most accurate pricing for Boston Logan Intl-Cairns flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Cairns flights.
Search Deals
From Boston Logan Intl to Cairns
Search Deals

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 May 10, 2026.
Use the filters below to find and compare flights from Boston to Cairns that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:00 pm-9:50 am

2 stops45h 50m

Cairns

Thu 9/17

9:00 pm-3:15 pm

2 stops56h 15m

$1,690
Quickest round-trip

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 7/2

10:30 am-10:35 am

2 stops34h 05m

Cairns

Sat 7/11

3:45 pm-8:35 am

2 stops30h 50m

$1,803

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 9/19

11:35 am-8:20 pm

2 stops42h 45m

Cairns

Wed 9/23

6:00 am-8:59 pm

2 stops28h 59m

$2,004
Cheapest one-way

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 7/19

8:20 pm-11:10 am

2 stops48h 50m

$1,271

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sun 7/19

6:36 pm-1:40 pm

2 stops29h 04m

$1,358

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 7/16

10:30 am-10:35 am

2 stops34h 05m

$1,378

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 7/16

8:20 pm-11:10 am

2 stops48h 50m

$1,458

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 7/16

7:00 am-10:35 am

2 stops37h 35m

$1,508

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 7/16

10:35 am-10:45 am

3 stops34h 10m

$1,754
Quickest one-way

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 7/16

1:15 pm-4:30 am

1 stop25h 15m

$7,212

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Sorted by cheapest first

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Cairns flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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.

  • How long is the flight from Boston to Cairns?

    American Airlines and United Airlines can get you from Boston to Cairns in just under 34h 05m. Your travel time can differ by up to 8h 40m. Airlines will cover a distance of 9642 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

See more FAQs

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