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Cairns

$677+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
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 July 9, 2026.

This American Airlines deal was found by Cheapflights users on 7/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:25 pm
BOS
-
CNS
2 stops29h 40m
American Airlines
Thu 11/196:00 am
CNS
-
BOS
2 stops30h 18m
American Airlines
Deal found 7/6$1,447
This American Airlines deal was found by Cheapflights users on 7/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:27 pm
BOS
-
CNS
2 stops30h 28m
American Airlines
Thu 9/171:55 pm
CNS
-
BOS
2 stops32h 18m
American Airlines
Deal found 7/6$1,453
This United Airlines deal was found by Cheapflights users on 7/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:45 am
BOS
-
CNS
3 stops51h 10m
United Airlines
Wed 11/186:00 am
CNS
-
BOS
2 stops32h 21m
United Airlines
Deal found 7/6$1,489
This United Airlines deal was found by Cheapflights users on 7/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:05 am
BOS
-
CNS
2 stops38h 55m
United Airlines
Wed 11/186:00 am
CNS
-
BOS
2 stops28h 19m
United Airlines
Deal found 7/6$1,491
This United Airlines deal was found by Cheapflights users on 7/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:16 pm
BOS
-
CNS
2 stops54h 39m
United Airlines
Mon 11/166:00 am
CNS
-
BOS
2 stops30h 24m
United Airlines
Deal found 7/6$1,506
This United Airlines deal was found by Cheapflights users on 7/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:45 am
BOS
-
CNS
3 stops51h 10m
United Airlines
Sat 11/216:00 am
CNS
-
BOS
2 stops32h 21m
United Airlines
Deal found 7/6$1,539
This United Airlines deal was found by Cheapflights users on 7/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:01 pm
BOS
-
CNS
2 stops28h 59m
United Airlines
Fri 11/206:00 am
CNS
-
BOS
2 stops32h 21m
United Airlines
Deal found 7/6$1,541
This United Airlines deal was found by Cheapflights users on 7/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:16 pm
BOS
-
CNS
2 stops54h 39m
United Airlines
Sat 11/216:00 am
CNS
-
BOS
2 stops32h 21m
United Airlines
Deal found 7/6$1,556
This FlightHub deal was found by Cheapflights users on 7/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:00 pm
BOS
-
CNS
2 stops32h 05m
Qantas Airways
Thu 11/196:00 am
CNS
-
BOS
2 stops28h 30m
Qantas Airways
Deal found 7/6$1,589

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 July 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,447
(American Airlines)

One-way from

$677
(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
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One-way flight from Boston Logan Intl to Cairns
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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 July 9, 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

Wed 11/11

5:45 am-11:55 pm

3 stops51h 10m

Cairns

Wed 11/18

6:00 am-11:40 pm

3 stops32h 40m

$1,489
Quickest round-trip

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 11/9

6:01 pm-2:00 pm

2 stops28h 59m

Cairns

Mon 11/16

6:00 am-11:40 pm

3 stops32h 40m

$1,491

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Tue 11/10

2:25 pm-11:05 am

2 stops29h 40m

Cairns

Tue 11/17

11:35 am-6:18 am

2 stops33h 43m

$1,609

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 9/7

10:40 am-4:30 am

2 stops27h 50m

Cairns

Thu 9/17

7:10 pm-11:55 am

3 stops54h 45m

$1,664

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 7/23

8:20 pm-8:20 pm

2 stops58h 00m

Cairns

Tue 10/20

6:00 am-9:02 pm

2 stops29h 02m

$1,720

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 10/28

9:40 pm-11:05 pm

2 stops35h 25m

Cairns

Sun 11/1

5:20 pm-1:55 pm

2 stops35h 35m

$2,106

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Wed 10/28

11:00 am-4:55 pm

2 stops39h 55m

Cairns

Sun 11/1

11:35 am-7:18 am

2 stops33h 43m

$2,120
Cheapest one-way

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Sat 8/15

5:01 pm-11:10 am

3 stops52h 09m

$743

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Mon 10/12

12:56 pm-11:55 am

2 stops32h 59m

$749
Quickest one-way

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 8/21

4:59 pm-12:55 pm

2 stops29h 56m

$809

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
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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 July.
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, United Airlines, and Qantas Airways can get you from Boston to Cairns in just under 29h 56m. Your travel time can differ by up to 21h 14m. 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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