SYD - BOS

$510 Find Cheap Flights from Sydney to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Boston departing on 1/18. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Boston, 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 Sydney to Boston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$799
Overall average: $1,424
Air Canada
Mon 1/19Sun 2/1
SYD - BOS • 2 stops
Cheapest one-way
$510
Typical prices: $849-$1,528
Multiple Airlines
Sun 1/18
SYD - BOS • 3 stops
Top airlines
Alaska Airlines
Cheapest • from $1,453 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 5% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 21% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Boston (SYD-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to Boston 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 Sydney to Boston

Mon, Jan 19 - Sun, Feb 1
Air Canada Logo
4:00 pm - 9:32 amSYD-BOS
33h 32m2 stops
Air Canada Logo
6:40 pm - 9:35 amBOS-SYD
46h 55m3 stops
$799Air Canada
Find Deal
Mon, Jan 19 - Sun, Feb 1
Air Canada Logo
4:00 pm - 9:32 amSYD-BOS
33h 32m2 stops
Air Canada Logo
10:45 am - 9:35 amBOS-SYD
30h 50m2 stops
$865Air Canada
Find Deal
Mon, Dec 8 - Tue, Dec 16
Air Canada Logo
4:00 pm - 2:52 pmSYD-BOS
38h 52m2 stops
Air Canada Logo
5:30 am - 6:55 amBOS-SYD
33h 25m2 stops
$871Air Canada
Find Deal
Wed, Mar 25 - Thu, Apr 9
Air Canada Logo
10:20 am - 10:37 pmSYD-BOS
51h 17m2 stops
Air Canada Logo
5:30 am - 7:20 amBOS-SYD
35h 50m2 stops
$873Air Canada
Find Deal
Thu, Dec 11 - Mon, Dec 15
Air Canada Logo
11:20 am - 9:32 amSYD-BOS
38h 12m3 stops
Air Canada Logo
3:40 pm - 6:55 amBOS-SYD
47h 15m2 stops
$877Air Canada
Find Deal
Wed, Mar 25 - Thu, Apr 9
Air Canada Logo
10:20 am - 10:37 pmSYD-BOS
51h 17m2 stops
Air Canada Logo
5:30 am - 7:20 amBOS-SYD
35h 50m3 stops
$884Air Canada
Find Deal
Mon, May 18 - Fri, May 29
Air Canada Logo
9:20 am - 5:50 pmSYD-BOS
46h 30m2 stops
Air Canada Logo
6:20 pm - 7:20 amBOS-SYD
71h 00m3 stops
$904Air Canada
Find Deal
Thu, May 21 - Sun, May 31
Air Canada Logo
9:20 am - 10:03 amSYD-BOS
38h 43m2 stops
Air Canada Logo
3:20 pm - 7:20 amBOS-SYD
26h 00m2 stops
$909Air Canada
Find Deal
Thu, May 21 - Sun, May 31
Air Canada Logo
9:20 am - 10:03 amSYD-BOS
38h 43m2 stops
Air Canada Logo
10:35 am - 7:20 amBOS-SYD
30h 45m3 stops
$915Air Canada
Find Deal
Mon, May 18 - Fri, May 29
Air Canada Logo
9:20 am - 9:20 pmSYD-BOS
50h 00m2 stops
Air Canada Logo
10:35 am - 7:20 amBOS-SYD
30h 45m2 stops
$917Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for Sydney to Boston flights

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

What’s the cheapest day of the week to fly from Sydney to Boston?

The average price of all round-trip flights from Sydney to Boston clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Sydney to Boston, look for departures on Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Boston, Wednesday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from Sydney to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Boston is October, where tickets cost $1,031 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $1,642 and $1,600 respectively.

How far in advance should I book a flight from Sydney to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sydney to Boston, you should book around 5 weeks before departure, which saves you about 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$510
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Sydney to Boston

When to book flights from Sydney to Boston

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

  • Is there an airport lounge I can use at Sydney Airport while I wait to board my flight?

    Yes; whichever terminal you're flying from, there will be an airport lounge within easy walking distance of your gate at Sydney Airport. It has around a dozen lounges spread across all of its passenger terminals, clustered mostly in terminal 1 (the airport's busiest terminal). Some of these lounges are airline lounges, which you may be able to access with your ticket depending on which airline and ticket class you choose, and some are pay-per-access. Tickets to Sydney Airport's Plaza Premium Lounge start at around A$ 40 per person for a 3h slot. You'll be able to enjoy premium food, a wide variety of free beer, liquor, wine, and non-alcoholic beverages, and more tranquil conditions than the busy terminal.

  • How should I travel to central Boston from Boston Airport?

    There's a free shuttle bus called the Silver Line Bus (SL1), which will take you from your terminal to South Station in central Boston. The journey takes around 25-30min, and from there you can easily transfer wherever you need to go in Boston, as South Station has a metro stop on the red line, which connects to all of Boston's other subway lines. If you have a lot of luggage or would just rather be dropped off at your door, you can get a taxi; it'll cost about $25-30 (A$ 33-38) and should take under 20min, depending on traffic conditions. You can get the shuttle bus or catch a taxi from bus stops and taxi ranks directly outside every terminal.

  • What is the cheapest flight from Sydney to Boston?

    In the last 3 days, the lowest price for a flight from Sydney to Boston was $510 for a one-way ticket and $799 for a round-trip.

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

    Yes, you’ll need a passport to travel to Boston from Sydney.

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

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

  • Which airline alliances offer flights from Sydney to Boston?

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

  • Which is the best airline for flights from Sydney to Boston, Delta or Qantas Airways?

    The two airlines most popular with KAYAK users for flights from Sydney to Boston are Delta and Qantas Airways. With an average price for the route of $1,700 and an overall rating of 7.9, Delta is the most popular choice. Qantas Airways is also a great choice for the route, with an average price of $1,351 and an overall rating of 7.5.

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

    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 Sydney to Boston.

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

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

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

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

KAYAK’s top tips for finding a cheap flight from Sydney to Boston

  • If you're leaving your car at Sydney Airport (SYD) while you're away, you can park in car park P7, adjacent to the international terminal. The walk to the terminal takes around 2–5min. Prices start at approx. A$ 20 daily, but if you book in advance, you'll be more likely to get a better deal.
  • Boston Airport (BOS) has a huge variety of hotels nearby and even includes two on-site hotels; the Hilton Boston Logan Airport and the Hyatt Regency Harborside are both on the premises at Boston Airport.
  • From Sydney, you can get a train to the airport for around A$ 18.50; the train takes about 13min from the centre of the city. You can also hop in a taxi for approx. 20min (depending on traffic), which will cost about A$ 50.

Reviews of the top 3 airlines serving from Sydney to Boston

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Boston. 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 Sydney to Boston? 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.
7.9
DeltaOverall score based on 8005 reviews
7.9Entertainment
7.3Food
7.9Comfort
8.1Boarding
8.5Crew
Airline reviews

One of the best airlines that I flew on, the flight attendants were very attentive and professional.

10.0 Excellentricardo, Nov 2025ICN - JFK
Read more Delta reviews

One of the best airlines that I flew on, the flight attendants were very attentive and professional.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

the over had ligth did not work'd for the all way

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

No internet on flight, which makes log travels really hard.

My flight from Dallas to Sydney was cancelled. My entire trip was rerouted to include the following: Hartford to Washington DC Washington DC to JFK JFK to Auckland Auckland to Christchurch I paid for an aisle seat on the flight to Auckland and was asked if I would take a window seat to accommodate a family. The agent at the podium failed to mention that the family had a 3 month old baby and that a bassinet would be used during the 16 hour flight. The only way I could get out of my seat was to crawl under the bassinet of the sleeping baby. I think it is wrong that I was no given the choice to sit in another seat, that the agent knew what she was doing and chose to not properly disclose my seating arrangement. Terrible treatment.

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

by the time they got to our row, they were out of some of the food options. games and movies were great but maybe more game options like tetris or pac man would be great

Great as usual, some delays but well communicated and made up for in the air

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

We were upgraded and after just a short delay in attending to a safety check we were on our way. Would definately fly Qantas International on their Dreamliner again.

I tried to check in online but was unable to do so. I stood in line for nearly two hours to check in. American Airlines was understaffed. When I finally got to the kiosk to check in, I was still unable to check in. No AA staff was available to help. Finally one of the airport security agents who was helping passengers became of lack of AA Staff told me: “I think the reason you can’t check in is that you are starting your name with an upper case letter when you write it. Just write it with all lower case letters.” That did allow me to check in. HOW COULD ANYONE POSSIBLY KNOW THAT IF THEY USE AN INITIAL UPPER CASE LETTER TO SPELL THEIR OWN NAME, AA WOULD NOT ALLOW THEM TO CHECK IN?????? Then I had to wait in line over half an hour again to drop off my baggage. Although I arrived at the airport 3 hours early, by the time I got to the gate, they had already started boarding.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

We boarded late. The crew at the airport was dismissive. The seat cushion on the plane was uncomfortable.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

United has come a long way, it’s been a fantastic experience traveling with them.

Even though we were delayed, we were able to make our connection

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Great crew, excellent landing, good food. Over all great experience. Thank you!

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

Information on your arrival and departure airports