SYD - KTM

Find Cheap Flights from Sydney to Kathmandu – Compare and Save

1 adult
1 adult, Economy, 0 bags

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

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

Direct flights
Not available
There are currently no direct flights between Sydney and Kathmandu. You’ll need at least 1 connection.
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Top stopover airports
Cheapest • Avg £544 (return)
Shortest trip • 14h 50m (one-way)
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 14% compared to booking last minute.
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When to travel
Cheapest • 20% price drop
Most popular
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Booking Insights
Flight Deals

Cheap Flights from Sydney to Kathmandu (SYD-KTM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Kathmandu 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 return flight deals from Sydney to Kathmandu

Multiple Airlines Logo
SYD
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KTM
6050 mimulti-stop
Multiple Airlines Logo
KTM
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SYD
6050 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Sydney to Kathmandu flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Kathmandu, 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 Kathmandu is February, where tickets cost £563 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is £919 and £875 respectively.

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

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 Kathmandu, 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 Kathmandu, you should book around 4 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know - Cheap tickets from Sydney to Kathmandu

Low seasonJuly
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (8% more expensive on average)

When to book flights from Sydney to Kathmandu

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

  • What special assistance is available for people with disabilities at Sydney’s Kingsford Smith Airport?

    If you have a disability, it’s best to allow extra time to head to Airport Services before your flight departs from Sydney’s Kingsford Smith Airport; go to Level 3 of the International Terminal (T1) and follow the signs for Administration. They will provide you with a sunflower lanyard that communicates to staff members you may need extra assistance. In addition to this, it’s wise to inform your travel agent or airline of any special assistance you may require as they will make arrangements for you before you arrive at the airport.

  • Are there any open access lounges at Sydney Airport?

    Sydney Airport has a number of lounges spread across Levels 1, 2 and 3 of the International Terminal (T1). If you don’t have an airline membership but do have an American Express card, you may be able to enjoy free access to American Express Lounge located on Level 1. Alternatively, Plaza Premium Lounge (on Level 2) accepts walk-ins with no airline membership required. Prices start at about A$ 37.80 per person. If you are considering either of these options, it’s worth booking online as this allows you to confirm the opening hours and availability in relation to your flight schedule.

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

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

  • Which airline alliances offer flights from Sydney to Kathmandu?

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

  • Which is the best airline for flights from Sydney to Kathmandu, Singapore Airlines or Thai Airways?

    The two airlines most popular with KAYAK users for flights from Sydney to Kathmandu are Singapore Airlines and Thai Airways. With an average price for the route of £812 and an overall rating of 8.2, Singapore Airlines is the most popular choice. Thai Airways is also a great choice for the route, with an average price of £883 and an overall rating of 7.9.

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

    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 Kathmandu.

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

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

    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 Kathmandu 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 Kathmandu?

    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 Kathmandu 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 Kathmandu

  • Your flight from Sydney to Kathmandu will depart from Terminal 1 of Kingsford Smith Airport (SYD) and arrive at Terminal 2 of Tribhuvan International Airport (KTM).
  • If you’re after a fast and easy trip to Sydney Airport from the city centre, taxis and rideshare providers usually only take around 20min, depending on traffic conditions. The trip should cost between A$ 45 and A$ 55.
  • Leaving a pet behind for your trip from Sydney to Kathmandu? Hanrob Pet Hotel is in the Kingsford Smith Airport precinct and offers both short- and long-term accommodation and care for pets.
  • Kathmandu’s Tribhuvan International Airport is the hub for both Himalaya Airlines and Nepal Airlines. It’s also the hub for smaller local airlines like Buddha Air, Yeti Air and Guna Air, which do scenic flights around Mount Everest.

Reviews of the top 3 airlines flying from Sydney to Kathmandu

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Kathmandu. 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 Kathmandu? 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
Thai AirwaysOverall score based on 407 reviews
7.7Comfort
6.9Entertainment
8.0Boarding
7.4Food
8.4Crew
Airline reviews

Excellent airline. The plane was clean and the staff were very attentive

10.0 ExcellentThad, Dec 2025
NRT - BKK
Read more Thai Airways reviews

Excellent airline. The plane was clean and the staff were very attentive

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

Terrible. It’s like they are stuck in the dark ages. I brought a standard carry on suitcase and a back pack - I was told I could only carry on 7kg per bag - in business class, I was forced to remove articles from the suitcase and put them into my backpack! That’s the most ridiculous thing I’ve ever encountered in all my years of flying. The two bags weighed the same amount but one could not be more than 7kg. Holy cow.

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Could have been better. I prefer Thai airlines only but it hasnt been reliable.

The aircraft was really old, the staff demotivated and the overall United airline service is horrible

Lunch Food was tasteful and had variety. Seat was comfortable. However, when I was reserving my seats during booking, the seat configuration showed was 3-3-3, but when I boarded it was a 2-4-2 configuration? Also during booking, I had also bought travel insurance together with my TG booking. However there was no confirmation of my purchase from Allianz and TG. After several emails with TG contact, sales, reservation and Allianz was i able to confirm my insurance purchase. When the policy was issued, the birth dates of me and my wife were wrongly stated and I had to go through another round of emails with Allianz to get it corrected. Otherwise any claims would be void! It was indeed not a very good booking experience!

Thai Airways is one of the best airlines in the business. Looking forward to fly again with them.

Excellent service. departed on time, and arrived ahead of schedule. The whole restrictions around no food/drink is a bit weird even with Covid. Also, no mobiles and iPad use during takeoff and landing is very 2006!

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

It was okay. Boarding the staff made you feel rushed like we were late or something

Crew: Everybody was polite. People just need to get efficient and less reworking things. Entertainment: Could have move movies and games. The “music” section is a joke, only ONE available. Food: The food provided on the flights boarding in china needs a serious reworking. Too much oil, bad for your stomach, tastes too artificial and the eggs were a giant mass of green dough.

Food was terrible. Fish was equal to a sausage and scrumbled eggs were terribly green with a quite weird fllavour. Everybody with me hated all options. The best food was the bread with butter.

I love flying Chinese airlines in general but China Southern is probably the worst of the lot. The service is poor and food is below par.

Flight canceled, but they didn't notify me. They arranged a nearby hotel and 4 meals for me to stay for 24 hours before I could board.

Had some luggage loading delays but it was still a good experience

Wuhan - Dubai. Old plane: 1. Only USB charger. No power outlet to plug in.. 2. Super narrow seat layout 3. Toilet cover consistently fell down and hit my back when sitting on it.. :( 4. Entertainment system touch screen not sensitive, and need to press hard or use finger tips to hit. Crew were very nice and accommodating though.

Food no choice just give it seams trying to finish what ever you have in hand

OK seats comfortable, easy boarding/embarking, excellent connection to domestic Malaysia flight with baggage checked through without customs. Catering especially drinks borderline ok luckily less important aspect

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

Did not take as cancelled 3 time so took another airline

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

My first course flight (Aor-Kul) was cancelled in the morning, and they asked me to board the night flight hence I need to transit overnight for the 2nd flight (Kul-Myy) that supposed to be on the same day. The overnight stay was not provided, (I'm traveling with my spouse, a daughter (5 y.o.) and an infant (2 months old). Hence I booked Sama Sama Hotel at my own expense (fortunately using my enrich miles points). Other than this issue, all services is good.

No recognition for one World Emerald member. Business class seat has flat bed

I had purchased extra leg room for all legs of the flight but due to a delay in leaving Perth I was put on another flight but with Emirates. My luggage was initially lost but later found and my suitcase was broken. I ended up losing my upgrades

The flight is awful, food isn’t very tasty or good, entertainment sucks

Personable, friendly service. Crew interactions always naturally pleasant and polite. The crew really enjoy their job and interactions with one another. Public Addresses are all smooth, clear and unambiguous - this instils confidence. Landing was butter-smooth in what seemed to be challenging and turbulent conditions - Kudos to the flight crew. Boarding and airport experience were good also.

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

Information on your arrival and departure airports