Find Cheap Flights from Boston Logan International to Sydney Kingsford Smith (BOS - SYD)

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Sat 12/16
Sat 12/23
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Good to Know

Low Season:
August
Best time to beat the crowds
3%
expected price decrease
High Season:
December
Most popular time to fly
13%
expected price increase
Average Price:
$2243
(avg. price over the last 2 weeks)
Good Deal:
$1345
or less (round trip)

When to Book Flights from Boston Logan International to Sydney Kingsford Smith

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $1344 or less.
The cheapest flight from Boston Logan International to Sydney Kingsford Smith was found 72 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 10% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Boston Logan International to Sydney Kingsford Smith Flights

How long does a flight from Boston Logan International to Sydney Kingsford Smith take?
An average nonstop flight takes 25h 45m, covering a distance of 10098 miles.
Which airlines provide the cheapest flights from Boston Logan International to Sydney Kingsford Smith?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($1056), Air New Zealand ($1176) and Cathay Pacific ($1315).
Do I need a passport to fly between Boston Logan International and Sydney Kingsford Smith?
Yes.
What’s the cheapest day of the week to fly Boston Logan International to Sydney Kingsford Smith?
For Boston Logan International to Sydney Kingsford Smith, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Sydney Kingsford Smith back to Boston Logan International, the best deals are generally found on Wednesday, with Sunday being the most expensive.

Book cheap flights from Boston Logan International to Sydney Kingsford Smith (round-trip)

Airports
Origin
Boston
$1056
only
$1056
Destination
Sydney
$1056
only
$1056
Wed, Mar 21
BOS
SYD
35h 25m
Wed, Apr 4
SYD
BOS
33h 44m
$1056
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 6
BOS
SYD
25h 45m
Wed, Jun 13
SYD
BOS
26h 40m
$1176
Trip: 8 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 1576 reviews
Overall
8.7
Boarding
8.7
Comfort
8.4
Crew
9.0
Entertainment
8.6
Food
8.2
SYD
AKL
Excellent 8.6

I selected two bags on kayak but when I checked in at Air New Zealand they said I just had tickets. Was forced to pay the full price for the baggage.

DUD
AKL
Okay 4.6

Unable to check-in online because of an international connection. Also, we need to pay extra for everything.

AKL
MEL
Good 6.3

Boarding is an issue. Please have more staff in the early stages of boarding to make sure people go to the correct lines . It's not immediately obvious and leads to frustration . I wasn't too bothered as I worked it out quickly but I could hear many others expressing their frustration around me . I was disappointed in the movie selection. I wanted more new release movies to choose from . Cabin crew friendly and polite . Love the wine ! Put up with being cramped .. would love more leg room but overall very happy ! Thank You everyone involved !

LAX
AKL
Excellent 10.0

Everything was excellent , no complaints at all. Staff friendly and efficient,food was pretty good , wine nice good flight .

Not enough good new release movie selection was very average/ poor. Your boarding from LAX could be improved. You have two signs about Premium and economy lines for boarding! These are not obvious . There needs to be a staff member or two checking people as they arrive in a line to check they're in the correct t line . Otherwise people don't trailer until they have been in the wrong line until the reach the top of the line . Leads to frustration even before the flight begins! Otherwise great job everyone ! Thank You !

LAX
AKL
Excellent 10.0

Food service

Tue, Jan 16
BOS
SYD
37h 50m
Wed, Jan 24
SYD
BOS
38h 35m
$1315
Trip: 9 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 3593 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
MNL
HKG
Good 6.3

Clean plane

Seat won't recline

HKG
BOS
Good 7.0

The crew is nice. You can order snacks in between meals.

Our flight was cancelled and we were automatically placed on another EARLIER flight and we weren't notified. I found out the morning of our original flight, as our new flight was about to board. I still haven't figured out who was responsible for this snafu - the airline or Webjet.com. Webjet customer service was horrible and offensive when I tried to explain to them what happened; they said it was my responsibility to check the time. I would disagree - the customer is ultimately supposed to get an email notifying them of the flight change, giving them options. Based on that phone call with Webjet, I will NEVER do business with them again. As for the flight cancellation issue - if Kayak could help me get to the bottom of this, that would be appreciated.

BKK
HKG
Okay 5.3

I guess I can't expect much from what seems to be a low budget airline. The food was OK and the movie selection was excellent. I didn't have any issues with boarding or baggage check in. There was a mix of good and bad flight staff. Sadly, the staff in bad moods were servicing me.

PThe bad mood in-flight staff and the uncomfortable seats. During boarding, I asked one of the staff if I can have a window seat because I have motion sickness and aisle seats make me feel ill. She looked at me flustered and said all seats are booked and that I'll be Ok with the aisle seat. On a different CP flight, a different staff was helping a couple switch with other passengers so they can sit next to each other. That would have been nice if they did that for me when I asked for a window seat.

HKG
LAX
Excellent 8.0

Entertainment

Food options

EWR
HKG
Excellent 9.0

Time Management and guidance. We enjoyed playing on screen. We viewed movie. How we are flying on Google maps. Hospitality is good.

Nothing.

Wed, Dec 27
BOS
SYD
26h 10m
Fri, Feb 16
SYD
BOS
24h 05m
$1631
Trip: 52 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 2986 reviews
Overall
8.9
Boarding
9.0
Comfort
8.7
Crew
9.1
Entertainment
8.6
Food
8.5
SAN
NRT
Excellent 10.0

The flight crew was incredibly kind and attentive

HND
SFO
Excellent 8.6

They give a lot of food and the 12 hour flight was comfortable

Limited selection for entertainment

MNL
NRT
Excellent 8.0

I wasn't able to pre-select my seat.

NRT
ORD
Excellent 10.0

Ms Yoshinaga went out of her way to make sure everything was smooth for my experience.

NRT
KUL
Good 7.3

JAL has always provided exceptional value for money and top notch service.

Have taken several JAL flight the last 1 year and this flight was significantly worse than the last few. Especially the meals.

Wed, Apr 4
BOS
SYD
49h 25m
Wed, Apr 18
SYD
BOS
35h 35m
$1059
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 29
BOS
SYD
35h 00m
Thu, Feb 8
SYD
BOS
36h 40m
$1092
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 6
BOS
SYD
28h 30m
Sun, Feb 18
SYD
BOS
62h 04m
$1275
Trip: 13 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 1576 reviews
Overall
8.7
Boarding
8.7
Comfort
8.4
Crew
9.0
Entertainment
8.6
Food
8.2
DUD
AKL
Okay 4.6

Unable to check-in online because of an international connection. Also, we need to pay extra for everything.

ZQN
SYD
Good 6.8

Efficient

Check In Issues related to code share flight

LAX
AKL
Excellent 10.0

Food service

AKL
LAX
Excellent 9.3

Two toilets in Premium Economy, comfortable seat with blanket, headphones, and large pillow

AKL
SYD
Mediocre 3.3

Good thing, we got there.

The flight attendants did nothing and told us we had to buy water. Really?? We were over charged for our baggage by a long shot. You sell cheap flights but by the time you pay for bags it is no longer a deal.

Tue, Feb 6
BOS
SYD
35h 50m
Tue, Feb 13
SYD
BOS
33h 11m
$1097
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 29
BOS
SYD
31h 35m
Mon, Apr 9
SYD
BOS
31h 50m
$1097
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 10
BOS
SYD
30h 11m
Thu, May 17
SYD
BOS
28h 35m
$1133
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 7
BOS
SYD
27h 55m
Mon, Feb 26
SYD
BOS
31h 54m
$1137
Trip: 20 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Dec 25
BOS
SYD
60h 35m
Sat, Jan 6
SYD
BOS
63h 33m
$1772
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
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*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.