BOS - CNS

$1,910 Find Cheap Flights from Boston to Cairns

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Cairns departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Cairns

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Cairns, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Cairns, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Boston to Cairns (BOS-CNS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Cairns that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Cairns

Wed, Aug 13 - Wed, Aug 20
 Logo
6:07 pm - 10:50 pmBOS-CNS
38h 43m2 stops
 Logo
5:45 am - 9:52 pmCNS-BOS
30h 07m2 stops
$1,910
Find Deal
Fri, Aug 15 - Fri, Aug 22
United Airlines Logo
6:25 pm - 3:55 pmBOS-CNS
31h 30m2 stops
United Airlines Logo
6:00 am - 11:56 pmCNS-BOS
31h 56m2 stops
$1,998United Airlines
Find Deal
Sat, Aug 9 - Sun, Aug 17
United Airlines Logo
8:05 am - 3:55 pmBOS-CNS
41h 50m2 stops
United Airlines Logo
6:00 am - 6:14 amCNS-BOS
38h 14m2 stops
$2,015United Airlines
Find Deal
Sat, Aug 9 - Sun, Aug 17
United Airlines Logo
10:32 am - 3:55 pmBOS-CNS
39h 23m2 stops
United Airlines Logo
6:00 am - 7:33 amCNS-BOS
39h 33m3 stops
$2,021United Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 20
 Logo
6:07 pm - 12:55 pmBOS-CNS
28h 48m2 stops
 Logo
3:35 pm - 10:14 amCNS-BOS
32h 39m3 stops
$2,436
Find Deal
Fri, Aug 15 - Fri, Aug 22
Qantas Airways Logo
6:32 am - 6:15 pmBOS-CNS
45h 43m3 stops
Qantas Airways Logo
7:00 pm - 11:00 pmCNS-BOS
42h 00m3 stops
$2,908Qantas Airways
Find Deal
Sat, Aug 9 - Sun, Aug 17
Singapore Airlines Logo
2:40 pm - 5:00 pmBOS-CNS
36h 20m3 stops
Singapore Airlines Logo
6:15 pm - 4:13 pmCNS-BOS
35h 58m3 stops
$3,075Singapore Airlines
Find Deal
Tue, Aug 12 - Wed, Aug 20
Cathay Pacific Logo
1:40 am - 8:35 amBOS-CNS
40h 55m2 stops
Cathay Pacific Logo
1:40 pm - 11:00 pmCNS-BOS
47h 20m2 stops
$3,138Cathay Pacific
Find Deal
Fri, Aug 8 - Sun, Aug 17
Cathay Pacific Logo
1:40 am - 8:35 amBOS-CNS
40h 55m2 stops
Cathay Pacific Logo
6:40 pm - 11:00 pmCNS-BOS
42h 20m2 stops
$3,353Cathay Pacific
Find Deal
Thu, Aug 14 - Thu, Aug 21
Emirates Logo
11:05 pm - 5:50 pmBOS-CNS
52h 45m2 stops
Emirates Logo
12:15 pm - 2:10 pmCNS-BOS
39h 55m2 stops
$3,473Emirates
Find Deal
Useful Info

KAYAK's insights & trends for Boston to Cairns flights

Get data-powered insights and trends into flights from Boston to Cairns to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Cairns?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boston to Cairns were found on United Airlines ($1,998) and Qantas Airways ($2,908).

Good to know

Low seasonJune
High seasonNovember
Cheapest flight$1,910
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 9% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Cairns

  • What is the cheapest flight from Boston to Cairns?

    In the last 3 days, the lowest price for a flight from Boston to Cairns was $1,910 for a round-trip ticket.

  • Do I need a passport to fly between Boston and Cairns?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Cairns.

  • Which airports will I be using when flying from Boston to Cairns?

    Boston airport is called Boston Logan Intl and the only airport in Cairns is Cairns.

  • Which aircraft models fly most regularly from Boston to Cairns?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Cairns?

    Star Alliance, and oneworld are the airline alliances operating flights between Boston and Cairns, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Boston to Cairns?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Cairns.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Cairns?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cairns from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Cairns?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cairns with an airline and back to Boston with another airline. Booking your flights between Boston and CNS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Cairns?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cairns from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boston to Cairns

 
See real verified KAYAK customer reviews for airlines flying from Boston to Cairns. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Cairns? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 870 reviews
7.7Boarding
6.9Food
7.4Comfort
7.1Entertainment
8.2Crew
Airline reviews

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

10.0 ExcellentDavid, Jun 2025BME - PER
Read more Qantas Airways reviews

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

Was bumped to a later flight because of inefficiency on part of the airline.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Loved the staff. The economy seats could have been bigger.

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

Everything you need to know for your flight from Boston to Cairns

Information on your arrival and departure airports

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