$389 Cheap Flights from Sydney (SYD) to Kathmandu (KTM)

View $389 flight on Sat, Sep 5, 2026Opens in a new window

Popular airlines from Sydney Airport (SYD) to Tribhuvan Intl. Airport (KTM)

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Cheap Flights from Sydney to Kathmandu (SYD-KTM)

Prices were available within the past 7 days and start at $389 for one-way flights and $641 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Sat, May 30 - Fri, Jun 19
SYD
Sydney
KTM
Kathmandu
$641 Roundtrip, found 6 hours ago
$641
Roundtrip
found 6 hours ago
Select China Southern Airlines flight, departing Sat, May 30 from Sydney to Kathmandu, returning Fri, Jun 19, priced at $641 found 6 hours ago
China Southern Airlines
Thu, May 28 - Fri, Jun 19
SYD
Sydney
KTM
Kathmandu
$693 Roundtrip, found 6 hours ago
$693
Roundtrip
found 6 hours ago
Select China Southern Airlines flight, departing Thu, May 28 from Sydney to Kathmandu, returning Fri, Jun 19, priced at $693 found 6 hours ago
Singapore Airlines
Mon, Jun 1 - Sat, Jun 13
SYD
Sydney
KTM
Kathmandu
$710 Roundtrip, found 6 days ago
$710
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Mon, Jun 1 from Sydney to Kathmandu, returning Sat, Jun 13, priced at $710 found 6 days ago
Singapore Airlines
Mon, Jun 1 - Tue, Jun 16
SYD
Sydney
KTM
Kathmandu
$716 Roundtrip, found 22 hours ago
$716
Roundtrip
found 22 hours ago
Select Singapore Airlines flight, departing Mon, Jun 1 from Sydney to Kathmandu, returning Tue, Jun 16, priced at $716 found 22 hours ago
Singapore Airlines
Sun, May 10 - Sat, May 30
SYD
Sydney
KTM
Kathmandu
$726 Roundtrip, found 1 day ago
$726
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Sun, May 10 from Sydney to Kathmandu, returning Sat, May 30, priced at $726 found 1 day ago
Singapore Airlines
Sat, May 2 - Tue, Jun 16
SYD
Sydney
KTM
Kathmandu
$743 Roundtrip, found 1 day ago
$743
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Sat, May 2 from Sydney to Kathmandu, returning Tue, Jun 16, priced at $743 found 1 day ago
Sichuan Airlines
Wed, May 27 - Sat, Jun 6
SYD
Sydney
KTM
Kathmandu
$752 Roundtrip, found 6 hours ago
$752
Roundtrip
found 6 hours ago
Select Sichuan Airlines flight, departing Wed, May 27 from Sydney to Kathmandu, returning Sat, Jun 6, priced at $752 found 6 hours ago
Sichuan Airlines
Sat, May 2 - Tue, Jun 16
SYD
Sydney
KTM
Kathmandu
$753 Roundtrip, found 1 day ago
$753
Roundtrip
found 1 day ago
Select Sichuan Airlines flight, departing Sat, May 2 from Sydney to Kathmandu, returning Tue, Jun 16, priced at $753 found 1 day ago
SriLankan Airlines
Sat, Mar 7 - Thu, Mar 19
SYD
Sydney
KTM
Kathmandu
$761 Roundtrip, found 6 days ago
$761
Roundtrip
found 6 days ago
Select SriLankan Airlines flight, departing Sat, Mar 7 from Sydney to Kathmandu, returning Thu, Mar 19, priced at $761 found 6 days ago
China Eastern Airlines
Sun, Mar 8 - Wed, Mar 18
SYD
Sydney
KTM
Kathmandu
$819 Roundtrip, found 17 hours ago
$819
Roundtrip
found 17 hours ago
Select China Eastern Airlines flight, departing Sun, Mar 8 from Sydney to Kathmandu, returning Wed, Mar 18, priced at $819 found 17 hours ago

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Frequently asked questions

How much does a flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) cost?
You can find cheap one-way flights from $389 and cheap return flights from $641 Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) with Expedia. One-way flights usually range from $511 to $3824, and return flights typically cost between $862 and $2899. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
August is the cheapest month to fly from Sydney (SYD) to Kathmandu (KTM), with average round-trip fares around $755. This price is about 25% lower than the average throughout the year, as August typically has less travel activity. Other economical months for this route include May and July.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
Enter SYD to KTM and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
Cathay Pacific is one of the cheapest airlines offering connecting flights from Sydney (SYD) to Kathmandu (KTM), with round-trip tickets starting from around $1,046 with a layover in an airport. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
To find a cheap flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
When flying from Sydney to Kathmandu, aim for August or May. Return flights during these months average around $755, offering a good balance of price and travel experience. August is a great time to visit, as it coincides with the end of the monsoon season, leading to clearer skies.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
The earliest flight from Kingsford Smith International Airport (SYD) to Tribhuvan International Airport (KTM) typically departs at around 6:00 AM, operated by Emirates. This seasonal service can help you maximize your time in Kathmandu, allowing for a full day of exploration upon arrival. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
The most popular departure times for flights from Sydney (SYD) to Kathmandu (KTM) are in the late morning, from 9am to noon. About 23% of passengers prefer this time window. Many major carriers, including Cathay Pacific, Thai Airways, and China Southern Airlines, offer flights during this window. This timing is ideal for travelers who want to start their day in Sydney before embarking on their journey to Kathmandu.
How long does it take to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
A flight from SYD to KTM with a layover takes around 18 hours 50 minutes, with the route covering approximately 6,054 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
Business class is available on flights from SYD to KTM. Airlines that offer business class service on this route include:

  • Emirates
  • Qantas Airways
  • Qatar Airways
  • Air India
  • Korean Air
  • Virgin Australia
  • Malaysia Airlines
  • China Eastern Airlines
  • Finnair
  • Thai Airways International

How do I earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) flight with Expedia?
It's easy to earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Kathmandu from Kingsford Smith Intl. (SYD)?
From Kingsford Smith Intl. (SYD), you can fly into Tribhuvan Intl. (KTM) to reach Kathmandu. Some flights may connect through major hubs like Tullamarine (MEL), Changi (SIN), BNE (BNE) before reaching Kathmandu. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) at the last minute?
Typically, booking a last minute flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) flight and hotel package?
Securing a Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) Nepal Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.)?
If you booked your Sydney, NSW (SYD-Kingsford Smith Intl.) to Kathmandu (KTM-Tribhuvan Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Kingsford Smith Intl.
Destination airport
Tribhuvan Intl.
Airlines serving
Air India, Batik air , Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, Korean Air, Malaysia Airlines, Qatar Airways, Sichuan Airlines, Singapore Airlines, SriLankan Airlines, Thai Airways International
Roundtrip price
$640
Distance
6053 mi

Book with confidence

Sydney to Kathmandu Flights

The cheapest times to fly from Sydney to Kathmandu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sydney to Kathmandu are during the month of May. You can find some of the cheapest flights from Sydney to Kathmandu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Kathmandu

Sunday is one of the best days to book for cheap flights from Sydney to Kathmandu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sydney to Kathmandu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sydney to Kathmandu in 2026. You can also book with separate airlines for your outbound and return journeys, from $389 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sydney to Kathmandu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sydney to Kathmandu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Sydney to Kathmandu Flights

*Flight schedules are subject to change.

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*Available to One Key members.