SYD - BOS

$775 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 12/5. 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

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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Boston.
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals from Sydney to Boston (SYD-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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.

Recent return flight deals from Sydney to Boston

KAYAK's recommended return flight deals from the most popular airlines that fly from Sydney to Boston.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
09:20 - 09:35SYD-BOS
38h 15m2 stops
06:00 - 07:20BOS-SYD
35h 20m2 stops
$1,690Air Canada
Find Deal
Tue, 29 Jul - Thu, 14 Aug
09:20 - 22:38SYD-BOS
51h 18m2 stops
06:00 - 07:20BOS-SYD
35h 20m2 stops
$1,700Air Canada
Find Deal
Wed, 30 Jul - Wed, 13 Aug
09:10 - 07:00SYD-BOS
35h 50m1 stop
20:07 - 06:55BOS-SYD
44h 48m1 stop
$1,747American Airlines
Find Deal
Thu, 1 May - Sat, 17 May
09:10 - 22:31SYD-BOS
27h 21m1 stop
18:28 - 06:55BOS-SYD
22h 27m1 stop
$1,776Qantas Airways
Find Deal
Fri, 18 Jul - Mon, 25 Aug
09:10 - 22:31SYD-BOS
27h 21m1 stop
08:20 - 07:05BOS-SYD
32h 45m1 stop
$1,804Qantas Airways
Find Deal
Tue, 29 Jul - Sun, 17 Aug
09:10 - 09:16SYD-BOS
38h 06m2 stops
20:07 - 06:55BOS-SYD
44h 48m1 stop
$1,814American Airlines
Find Deal
Thu, 1 May - Sat, 17 May
10:20 - 19:38SYD-BOS
23h 18m1 stop
18:25 - 07:00BOS-SYD
22h 35m1 stop
$1,828United Airlines
Find Deal
Thu, 31 Jul - Sun, 17 Aug
09:30 - 06:01SYD-BOS
34h 31m2 stops
18:25 - 07:00BOS-SYD
22h 35m1 stop
$1,903United Airlines
Find Deal
Thu, 31 Jul - Sat, 16 Aug
07:40 - 23:00SYD-BOS
29h 20m1 stop
01:40 - 08:40BOS-SYD
41h 00m1 stop
$2,131Cathay Pacific
Find Deal
Wed, 25 Jun - Sun, 27 Jul
10:10 - 23:00SYD-BOS
26h 50m1 stop
01:40 - 08:40BOS-SYD
41h 00m1 stop
$2,150Cathay Pacific
Find Deal
Wed, 25 Jun - Sun, 27 Jul

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.
For Sydney to Boston, Sunday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Boston back to Sydney, the best deals are generally found on Tuesday, with Friday being 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 February, where tickets cost $1,907 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,745 and $2,447 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. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low season

February

High season

December

Cheapest flight

$775
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (23% more expensive on average)
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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 $489 for a one-way ticket and $1,066 for a return.

  • 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?

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

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

    The two airlines most popular with KAYAK users for flights from Sydney to Boston are Japan Airlines and Delta. With an average price for the route of $2,233 and an overall rating of 8.3, Japan Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $2,940 and an overall rating of 8.0.

  • 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 return ticket. You could then fly to Boston with an airline and back to Sydney with another airline.

  • 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.

See more FAQs

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.

Top 5 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
Hawaiian AirlinesOverall score based on 2336 reviews
7.7Comfort
7.0Food
8.1Boarding
7.2Entertainment
8.6Crew
Airline reviews

Every customer service agent we came in contact with was rude, tired, overworked and indifferent

2.0 MediocreRichard, Mar 2025SFO - LAX
Read more Hawaiian Airlines reviews

Every customer service agent we came in contact with was rude, tired, overworked and indifferent

Staff was great. Heard negative things about this airline but my experience was great

There was mention of a complimentary magazine but none were in the seat pockets. The flight is short so understandable not having food or a snack.

Maria and her partner In SLO are phenomal! Great customer service!

unexpected $120 charge to sit next to my wife on an isle seat in the economy section. Looks like there pre-assigning us both on the middle seat was intentional - leaving the isle seat next to my wife open at $120 was a ploy to make more money. Not good business.

Flight delayed. Then left much later than new time. 88 year old dad waiting at Kona airport for ages.

Very poor management for checking language at SEA airport. Staff is not friendly and didn’t direct me to correct counter. Due to this I missed my flight and hotel booking and car rental. Lost around $800 including the cabs

Flights were on time - boarding was smooth - snacks were good Only mild complaint is the seats did not appear to recline so red eye flight could have been better

Seats were so uncomfortable. Used to southwest so this was really disappointing. No wifi made for a long5 hour flight

This is my first time flying Hawaiian. It was so disorganized and poorly coordinated, resulting in the most unacceptable delay

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.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

I love flying with Qantas. There was no onscreen entertaining on this flight, and only a snack provided (not a meal) but still better than Jetstar or Virgin (in my opinion) so still happy.

Complaint is with American Airlines which delayed our flight from salt lake to Dallas reaulting in us missing our connection to Brisbane. Had to spend 24 hours in Dallas to wait for the next flight. Awful experience and ruined my wife’s birthday.

Wheelchair assistance to move through the terminals and to/from the plane door was excellent. No vegan snack on the flight, only something with salami and cheese in it.

The old Plane had not been cleaned properly in a long time.

Planes was old - business class seats looked like they were installed in the 80s

Our baggage didn’t arrive with us on the plane. Need I say more?

I got upgraded from economy to business, and the experience was outstanding

I have taken this flight many times. It is ALWAYS late. Every time there is significant delay (1-3 hours) before boarding. It’s very consistent. Even after boarding the expected landing time was delayed twice. The seats are very narrow and cramped. Food is barely editable. Considering an economy ticket often costs about $2,000 it’s one of the worst services ever.

Compared with other carriers business class for an overnight was not worth the extra expense.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

We were Polaris passengers and found the service poor. The food was ok but the flight attendants were not attentive and rushed the service.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Free wifi was available, but only some time, being at least 30 minutes into the flight. it would have been better that an announcement had been made about the delay.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

On time arrivals and departures. Gate boarding notices could be better if displayed on monitor.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

We were not offered anything to drink in business class during the boarding process.

Boarding was challenging as we had to use the stairs from the tarmac. Stairs are okay but a roller bag makes it challenging.

Ensure prepaid food arrangements are appropriately understood by flight crew of who purchased and who did not

All was fine. Weather was a bit stormy, but nothing kayak can do about that! 😊

I paid for a comfort class seat and was seated in economy.

Once again our Air Canada flight was delayed! I'm hopeful competition arrives with other airlines soon and maybe they will make a better effort to be on time!

My plane was cancelled and had to be rebook for the evening was not happy.

The flight was cancelled and we had to rebook on Porter to make our cruise the next day. Air Canada has not compensated. We won’t be flying with them again. This is the second time this has happened. Also the return flight was delayed 2 hours who knows why.

Mixed experienced. Nice staff. Spacious 787 better than cramped Airbus, though my seat was broken. The bad: Way overpriced ticket and charged for food despite 6 hr flight.

Separated me and my wife and wife’s sister in far apart different seats even though I booked them all together. Just scams after scams to make us pay more. Worst airline

Very smooth flight and the crew members were very welcoming.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.