BOS - CNS

$973 Find Cheap Flights from Boston to Cairns - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$2,550
Typical prices: $1,512-$1,878
Qantas Airways
Fri 12/28Fri 1/5
BOS - CNS • 2 stops
Cheapest one-way
$973
Typical prices: $885-$1,140
American Airlines
Fri 12/28
BOS - CNS • 2 stops
When to travel
Cheapest • 7% price drop
Most popular
Good to know
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Good to know
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Flight Deals

Cheap Flights from Boston to Cairns (BOS-CNS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Cairns

Mon, Dec 28 - Tue, Jan 5
Qantas Airways Logo
7:00 pm - 1:35 pmBOS  Boston Logan Intl-CNS Cairns
51h 35m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
9:15 am - 8:07 pmCNS  Cairns-BOS Boston Logan Intl
49h 52m2 stops Brisbane Dallas/Fort Worth
$2,550Qantas Airways
Mon, Dec 28 - Wed, Jan 6
Qantas Airways Logo
7:00 pm - 1:35 pmBOS  Boston Logan Intl-CNS Cairns
51h 35m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
3:40 pm - 5:02 pmCNS  Cairns-BOS Boston Logan Intl
40h 22m2 stops Brisbane Dallas/Fort Worth
$2,600Qantas Airways
Tue, Dec 22 - Thu, Dec 31
American Airlines Logo
2:20 pm - 1:35 pmBOS  Boston Logan Intl-CNS Cairns
32h 15m2 stops Los Angeles Sydney Kingsford Smith
American Airlines Logo
6:00 am - 11:30 pmCNS  Cairns-BOS Boston Logan Intl
32h 30m2 stops Brisbane Los Angeles
$2,628American Airlines
Fri, Dec 25 - Tue, Jan 5
Qantas Airways Logo
7:00 am - 2:45 pmBOS  Boston Logan Intl-CNS Cairns
40h 45m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
11:15 am - 8:07 pmCNS  Cairns-BOS Boston Logan Intl
47h 52m2 stops Brisbane Dallas/Fort Worth
$2,712Qantas Airways
Sun, Dec 27 - Tue, Jan 5
Qantas Airways Logo
7:00 am - 9:20 pmBOS  Boston Logan Intl-CNS Cairns
47h 20m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
5:40 pm - 8:07 pmCNS  Cairns-BOS Boston Logan Intl
41h 27m2 stops Brisbane Dallas/Fort Worth
$2,741Qantas Airways
Fri, Dec 25 - Wed, Jan 6
Qantas Airways Logo
10:45 am - 11:50 amBOS  Boston Logan Intl-CNS Cairns
34h 05m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
11:15 am - 8:48 pmCNS  Cairns-BOS Boston Logan Intl
48h 33m2 stops Brisbane Dallas/Fort Worth
$2,762Qantas Airways
Sun, Dec 27 - Wed, Jan 6
Qantas Airways Logo
2:20 pm - 9:20 pmBOS  Boston Logan Intl-CNS Cairns
40h 00m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
9:15 am - 5:02 pmCNS  Cairns-BOS Boston Logan Intl
46h 47m2 stops Brisbane Dallas/Fort Worth
$2,791Qantas Airways
Tue, Dec 22 - Thu, Dec 31
Qantas Airways Logo
7:00 am - 1:35 pmBOS  Boston Logan Intl-CNS Cairns
39h 35m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
6:00 am - 10:38 pmCNS  Cairns-BOS Boston Logan Intl
31h 38m3 stops Brisbane Sydney Kingsford Smith Dallas/Fort Worth
$3,052Qantas Airways
Mon, Dec 28 - Mon, Jan 4
Qatar Airways Logo
8:40 pm - 4:45 pmBOS  Boston Logan Intl-CNS Cairns
53h 05m2 stops Doha Hamad Intl Sydney Kingsford Smith
Qatar Airways Logo
7:50 pm - 1:55 pmCNS  Cairns-BOS Boston Logan Intl
57h 05m2 stops Melbourne Doha Hamad Intl
$3,123Qatar Airways
Sun, Dec 27 - Mon, Jan 4
Qatar Airways Logo
8:40 pm - 11:05 pmBOS  Boston Logan Intl-CNS Cairns
35h 25m2 stops Doha Hamad Intl Brisbane
Qatar Airways Logo
7:50 pm - 1:55 pmCNS  Cairns-BOS Boston Logan Intl
57h 05m2 stops Melbourne Doha Hamad Intl
$3,146Qatar Airways
Booking Insights

Price, demand and travel trends for Boston to Cairns flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Boston to Cairns?

Round-trip flights from Boston to Cairns typically range from $1,512 to $1,878. The lowest price found in the past 5 days was $2,550, on Qantas Airways.

Key details for Boston to Cairns flights

Cheapest flight

$973
The most popular month to fly with an average 6% increase in travelers.
One-way flight from Boston to Cairns

When to book flights from Boston to Cairns

Are your dates flexible? Find out the best times to travel from Boston to Cairns based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Cairns flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boston to Cairns?

    Only Economy Class is available on flights from Boston to Cairns.

  • Do I need a passport to fly from Boston to Cairns?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Cairns flight?

    Round-trip flights from Boston to Cairns range from $1,512 to $1,878, with an average of $1,606 over the past 12 months. Anything below $1,512 counts as a good deal.

  • Have flight prices from Boston to Cairns changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $2,550 to $7,241. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Boston to Cairns looking right now?

    One-way fares from Boston to Cairns are currently higher than usual. Average one-way flight prices are about $1,488, which is 44% above the typical average for this route.

  • What car rental options are available at Cairns Airport (CNS)?

    Cairns Airport (CNS) hosts 5 major car rental companies, with daily rates averaging $49 for economy cars. Top options include:

    • Bargain Car Rentals
    • East Coast Car Rentals
    • Simba Car Hire
    • Europcar
    • Ace Rental Cars

  • Which airports can I use when flying from Boston to Cairns?

    Flights from Boston to Cairns usually depart from Boston Logan Intl (BOS) and arrive at Cairns (CNS).

  • Can I save money by using flexible dates for flights from Boston to Cairns?

    Yes. Flexible dates can save you up to 29% on flights from Boston to Cairns. Tuesday is the cheapest departure day at $1,503 round-trip on average, while Friday is the most expensive at $2,107, a difference of $604.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Boston and Cairns?

    Cairns is 15 hours ahead of Boston (Eastern Australia Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Cairns?

    Some of the most popular sights in Cairns are Cairns Convention Centre and Reef Hotel Casino. These are among the most viewed places in Cairns on KAYAK.

Your guide to booking Boston to Cairns flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average $1,503, about $604 less than Friday fares (29% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Cairns trip for November. Fares historically average $1,490 round-trip in that month - typically $617 less than the most expensive month, which is April (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Cairns Airport.

    • Cairns Sheridan Hotel
    • Floriana Boutique Hotel
    • Kookas Bed & Breakfast

More options for your flight from Boston to Cairns

Complete your trip to Cairns with a hotel stay or car rental