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Cheap flights from Boston to Cairns from $2,464

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNS
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

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 16 January 2026.

Round-trip from

$2,464
Qantas Airways
  • Qantas Airways
  • 28/2-4/3
  • 4 total stops
  • 69h 29m total
  • Boston to Cairns
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Find flight deals from Boston to Cairns

Enter your travel dates to find the best prices.

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 16 January 2026.

Sat 28/210:10
BOS
-
CNS
2 stops33h 35m
Qantas Airways
Wed 4/309:20
CNS
-
BOS
2 stops35h 54m
Qantas Airways
Deal found 13/1$2,464
Thu 9/706:30
BOS
-
CNS
2 stops45h 50m
Multiple Airlines
Tue 21/715:20
CNS
-
BOS
2 stops46h 38m
Multiple Airlines
Deal found 14/1$2,804
Thu 9/717:56
BOS
-
CNS
3 stops57h 39m
Qantas Airways
Tue 21/711:50
CNS
-
BOS
2 stops49h 39m
Qantas Airways
Deal found 14/1$2,944
Fri 13/216:04
BOS
-
CNS
2 stops37h 56m
Qantas Airways
Sat 21/215:35
CNS
-
BOS
2 stops38h 38m
Qantas Airways
Deal found 14/1$9,986
Thu 12/200:30
BOS
-
CNS
2 stops46h 35m
Cathay Pacific
Sat 21/211:25
CNS
-
BOS
1 stop25h 35m
Cathay Pacific
Deal found 14/1$13,428
Fri 13/221:33
BOS
-
CNS
2 stops52h 57m
Multiple Airlines
Sat 21/209:55
CNS
-
BOS
2 stops44h 18m
Multiple Airlines
Deal found 15/1$15,593

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 16 January 2026.
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 28/2

10:10-10:45

2 stops33h 35m

Cairns

Wed 4/3

09:20-06:14

2 stops35h 54m

$2,464

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 9/7

06:30-18:20

2 stops45h 50m

Cairns

Tue 21/7

15:20-23:58

2 stops46h 38m

$2,804

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Fri 13/2

16:04-21:00

2 stops37h 56m

Cairns

Sat 21/2

15:35-15:13

2 stops38h 38m

$9,986

BostonCairns

BOS - CNS

BOSCNS

Boston Logan Intl

Thu 12/2

00:30-14:05

2 stops46h 35m

Cairns

Sat 21/2

11:25-22:00

1 stop25h 35m

$13,428

Flights are sorted by cheapest return flights first.

Deals found on 13/1

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 return 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?

    There are many flights that can get you from Boston to Cairns in 33h 35m. Fly via Qantas Airways to get the fastest option. The distance between Boston and Cairns is about 15517 km.

  • 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 holiday 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

Travelling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Mission Beach
Trinity Beach

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Alternative routes for Boston to Cairns

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Boston to Cairns?

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Why should you use Cheapflights to find cheap flight tickets from Boston to Cairns?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Cairns.

Can Cheapflights find flights from Boston to Cairns with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Cairns, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Boston to Cairns become cheaper?

Yes, Cheapflights offers price alerts on Boston to Cairns flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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