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BOS - YQY

Find cheap flights from Boston to Sydney from $338

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Sydney departing on 7/3. 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
0 bags
Sat 6/1
Sat 6/8

Search hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sydney, 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 Sydney, as well as popular online travel agencies
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Boston to Sydney (BOS-YQY)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Sydney 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 and deals for you by selecting your travel dates.
Choose your dates
6:15 am - 4:57 pmBOS-YQY
9h 42m2 stops
5:00 am - 2:38 pmYQY-BOS
10h 38m2 stops
$713Air Canada
Find Deal
Tue, May 28 - Tue, Jun 4
6:05 am - 4:57 pmBOS-YQY
9h 52m2 stops
5:35 pm - 9:28 pmYQY-BOS
4h 53m1 stop
$718Air Canada
Find Deal
Sun, Jun 2 - Sat, Jun 8
6:05 am - 4:57 pmBOS-YQY
9h 52m2 stops
5:00 am - 2:38 pmYQY-BOS
10h 38m2 stops
$723Air Canada
Find Deal
Sun, Jun 2 - Sat, Jun 8
6:05 am - 4:57 pmBOS-YQY
9h 52m2 stops
5:00 am - 2:38 pmYQY-BOS
10h 38m2 stops
$726Air Canada
Find Deal
Sat, Jun 1 - Tue, Jun 4
10:20 am - 4:56 pmBOS-YQY
5h 36m1 stop
5:00 am - 2:38 pmYQY-BOS
10h 38m2 stops
$728Air Canada
Find Deal
Mon, Jul 8 - Fri, Jul 12
6:05 am - 4:56 pmBOS-YQY
9h 51m2 stops
5:00 am - 2:38 pmYQY-BOS
10h 38m2 stops
$733Air Canada
Find Deal
Tue, Jul 16 - Tue, Jul 23
6:05 am - 1:48 amBOS-YQY
18h 43m1 stop
5:35 pm - 9:28 pmYQY-BOS
4h 53m1 stop
$734Air Canada
Find Deal
Thu, May 30 - Thu, Jun 6
6:05 am - 1:48 amBOS-YQY
18h 43m1 stop
5:00 am - 3:09 pmYQY-BOS
11h 09m1 stop
$735Air Canada
Find Deal
Sun, Jun 16 - Wed, Jun 19
6:00 am - 4:57 pmBOS-YQY
9h 57m2 stops
5:35 pm - 3:08 pmYQY-BOS
22h 33m2 stops
Thu, May 30 - Thu, Jun 6
6:00 am - 4:57 pmBOS-YQY
9h 57m2 stops
5:35 pm - 3:08 pmYQY-BOS
22h 33m2 stops
Thu, May 30 - Thu, Jun 6

Good to know

Low season

February

High season

August

Cheapest flight

$338
Best time to beat the crowds with an average 56% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Boston to Sydney

When to book flights from Boston to Sydney

Are your dates flexible? Find out the best times to travel from Boston to Sydney 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 Sydney

  • What is the cheapest flight from Boston to Sydney, Nova Scotia?

    In the last 3 days, the lowest price for a flight from Boston to Sydney, Nova Scotia was $338 for a one-way ticket and $713 for a round-trip.

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

    Yes

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

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

  • Which airline alliances offer flights from Boston to Sydney?

    Star Alliance is the only airline alliance operating flights between Boston and Sydney.

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

    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 Sydney.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney 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 Sydney?

    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 Sydney with an airline and back to Boston with another airline. Booking your flights between Boston and YQY 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 Sydney?

    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 Sydney from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Boston to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Boston to Sydney. 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 Sydney? 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.
7.0
Air CanadaOverall score based on 6888 reviews
6.8Entertainment
6.2Food
7.2Boarding
7.8Crew
7.0Comfort
Airline reviews

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

6.0 GoodElizabeth, May 2024SFO - YYZ
Read more about Air Canada reviews

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

Easy boarding, roomy seats, plenty of good food, very helpful snd friendly staff. Very smooth flight! Only thing that could have been better was to have cranberry juice. Women like this as it helps avoid UTI’s and not as sweet as other juices.

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Cabin crew were great. Seats are criminal for tall people

Flight was delayed 1.5 hrs due to problem with a previous flight to mine; I was informed appropriately via Text & Email, however, website did not keep up with messages sent by nearly an hour. When checking-in warm & friendly reception at check-in desk until female Air Canada Rep noticed my flight number and instantly pivoted to a condescending & sarcastic comments about getting my bag checked in since I’m running so late; then tone instantly changed again few minutes later when she muttered, “Oh, they’ve delayed it” another sign systems & worse front line staff, not fully informed or simply not reading their flight status updates. Flight crew were very friendly & did a great job trying to make up lost time due to the delay.

It was great, love the experience and will definitely recommend 👌. Communication was great

Book cheap flights from Boston to Sydney

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Sydney found on KAYAK in the last 72 hours.
7/3Wed
1 stopAir Canada
5h 36mBOS-YQY
$338
7/3Wed
2 stopsAir Canada
9h 51mBOS-YQY
$344
7/3Wed
3 stops
15h 48mBOS-YQY
$463
7/4Thu
3 stops
15h 48mBOS-YQY
$520

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Boston - Sydney Flights

Departure:

Boston (BOS)United States

Destination:

Sydney (YQY)Canada

Cabin classes: