SYD - BOS

$616 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 7/23. 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.
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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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Flights Deals

Cheap Flights from Sydney to Boston

 
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.

Recent round-trip flight deals from Sydney to Boston

KAYAK's recommended round-trip 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.
 Logo
4:20 pm - 6:00 amSYD-BOS
27h 40m1 stop
 Logo
8:00 am - 2:40 pmBOS-SYD
40h 40m1 stop
Thu, Jun 5 - Thu, Jun 12
 Logo
4:20 pm - 2:14 pmSYD-BOS
35h 54m2 stops
 Logo
8:00 am - 2:40 pmBOS-SYD
40h 40m1 stop
$1,092
Find Deal
Thu, Jun 5 - Thu, Jun 12
United Airlines Logo
10:20 am - 8:08 amSYD-BOS
35h 48m1 stop
United Airlines Logo
7:30 am - 7:00 amBOS-SYD
33h 30m1 stop
$1,255United Airlines
Find Deal
Sat, Jun 21 - Sun, Jul 6
United Airlines Logo
9:30 am - 5:18 pmSYD-BOS
21h 48m1 stop
United Airlines Logo
6:19 pm - 7:00 amBOS-SYD
22h 41m1 stop
$1,256United Airlines
Find Deal
Sun, Jun 1 - Sat, Jun 14
Delta Logo
9:25 am - 11:55 pmSYD-BOS
28h 30m1 stop
Delta Logo
9:05 am - 6:35 amBOS-SYD
31h 30m2 stops
$1,264Delta
Find Deal
Wed, Jun 25 - Mon, Jul 28
Delta Logo
9:25 am - 11:55 pmSYD-BOS
28h 30m1 stop
Delta Logo
10:50 am - 6:35 amBOS-SYD
29h 45m1 stop
$1,265Delta
Find Deal
Fri, Jun 13 - Fri, Jun 20
American Airlines Logo
5:45 pm - 5:16 pmSYD-BOS
37h 31m1 stop
American Airlines Logo
12:00 pm - 7:05 amBOS-SYD
29h 05m1 stop
$1,343American Airlines
Find Deal
Mon, Jun 30 - Mon, Aug 11
Air Canada Logo
10:20 am - 9:35 amSYD-BOS
38h 15m2 stops
Air Canada Logo
3:20 pm - 8:20 amBOS-SYD
26h 00m2 stops
$1,353Air Canada
Find Deal
Sun, Oct 12 - Sun, Oct 19
Air Canada Logo
10:20 am - 9:22 pmSYD-BOS
26h 02m2 stops
Air Canada Logo
10:20 am - 8:20 amBOS-SYD
31h 00m2 stops
$1,354Air Canada
Find Deal
Sun, Oct 12 - Sun, Oct 19
American Airlines Logo
9:10 am - 6:33 pmSYD-BOS
23h 23m2 stops
American Airlines Logo
4:02 pm - 7:05 amBOS-SYD
25h 03m2 stops
$1,517American Airlines
Find Deal
Wed, Jun 18 - Wed, Jul 2
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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 March, where tickets cost $1,187 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $1,695 and $1,594 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 15 weeks before departure.

Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$616
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 21% 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 $616 for a one-way ticket and $999 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?

    Star Alliance, SkyTeam, and oneworld 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, 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 8.0, Delta is the most popular choice. Qantas Airways is also a great choice for the route, with an average price of $1,557 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.

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.
8.0
DeltaOverall score based on 7936 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

10.0 ExcellentAnonymous, Apr 2025AMS - ATL
Read more Delta reviews

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Delta is a cut above the others in customer service.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

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?

Touch screens were very difficult to use, generally being laggy and unresponsive- it was quite an art to get it to play the thing you wanted rather than some thing at random. Selection of films and Tv was good when touchscreen decided to finally respond.

Their aircraft are old and amenities lack way behind other international carriers leaving from BNE. Even in economy

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

Friendly staff, surprisingly good premium economy seats allowing good sleep/ snooze opportunity and very good menu.

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.

Gluten free options less explicit on business class, but great service

Very good… seems the virgin staff particularly in the lounge and in flight exceeded expectations.

I liked everything about the experience but would have liked some free snacks!

Crew was great but flight was delayed almost three hours due to a technical issue and we had to go back to the terminal and wait for another one.

Being told why we delayed three hours and not even given an apology by someone. Not a word. Not my airline of choice ever.

Checked Baggage line up was long but moved quickly, rest of the process, boarding, crew was excellent

Virgin has always provided a smooth and comfortable flight. This one was no different. Seats are comfortable. Staff are great. This is my favourite airline.

Virgin changed the flight to an Alliance flight. Smaller plane, tea coffee and water the only refreshments available and not sure what happened to the extra money I paid to sit in a selected seat with extra leg room. This is obviously a regular switch as it happened on our flight there and back. Do not recommend.

Late boarding, late departure due to weather and slow boarding, packed 5+hour flight, only 2 toilets for main cabin, tight leg room, no free food except tea, coffee, and water, arrived 75 minutes late.

Cramped, crowded flight, with no complimentary food except coffee, tea, or water.

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

A bit rush for transit. Food and entertainment are not available

So far so good but food and entertainment are not available for this flight

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

Paid $35 and not able to access the internet at all.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

Took off on time and successfully avoided weather that looked to be a problem along the way

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

Information on your arrival and departure airports

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