$593 Cheap Flights from Sofia (SOF) to Kathmandu (KTM)

View $593 flight on Mon, May 25, 2026Opens in a new window

Popular airlines from Sofia Airport (SOF) to Tribhuvan Intl. Airport (KTM)

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Cheap Flights from Sofia to Kathmandu (SOF-KTM)

Prices were available within the past 7 days and start at $593 for one-way flights and $1,338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,338 Roundtrip, found 1 day ago
$1,338
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,338 found 1 day ago
Qatar Airways
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,341 Roundtrip, found 1 day ago
$1,341
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,341 found 1 day ago
Qatar Airways
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,343 Roundtrip, found 1 day ago
$1,343
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,343 found 1 day ago
Qatar Airways
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,349 Roundtrip, found 1 day ago
$1,349
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,349 found 1 day ago
Qatar Airways
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,351 Roundtrip, found 1 day ago
$1,351
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,351 found 1 day ago
Qatar Airways
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,354 Roundtrip, found 1 day ago
$1,354
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,354 found 1 day ago
flydubai
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,417 Roundtrip, found 1 day ago
$1,417
Roundtrip
found 1 day ago
Select flydubai flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,417 found 1 day ago
Emirates
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$1,494 Roundtrip, found 1 day ago
$1,494
Roundtrip
found 1 day ago
Select Emirates flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $1,494 found 1 day ago
KLM
Wed, Oct 14 - Wed, Oct 21
SOF
Sofia
KTM
Kathmandu
$1,835 Roundtrip, found 1 day ago
$1,835
Roundtrip
found 1 day ago
Select KLM flight, departing Wed, Oct 14 from Sofia to Kathmandu, returning Wed, Oct 21, priced at $1,835 found 1 day ago
Swiss International Air Lines
Mon, May 25 - Sat, May 30
SOF
Sofia
KTM
Kathmandu
$4,058 Roundtrip, found 1 day ago
$4,058
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Mon, May 25 from Sofia to Kathmandu, returning Sat, May 30, priced at $4,058 found 1 day ago

Frequently asked questions

How much does a flight from Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.) cost?
You can find cheap one-way flights from $593 and cheap return flights from $1,338 SOF to KTM with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when SOF to KTM ticket fares go up or down.
What is the cheapest month to fly from Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
The cheapest month to fly from SOF to KTM is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
Enter SOF to KTM and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
Lufthansa, Qatar Airways and Austrian Airlines are just some of the carriers that fly from Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. 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 Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
To find a cheap flight from Sofia (SOF) 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 Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
The earliest flight from Sofia (SOF) to Kathmandu (KTM) usually departs at around 6:00 AM, operated by Lufthansa and Air India. This early departure can help you maximize your time in Kathmandu. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
A flight from SOF to KTM with a layover takes around 14 hours 20 minutes, with the route covering approximately 3,565 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 Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
Business class seats are offered on the SOF to KTM route. Airlines that offer business class service on this route include:

  • Bulgaria Air
  • Austrian Airlines
  • Lufthansa
  • Turkish Airlines

How do I earn miles on a Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.) flight with Expedia?
It's easy to earn miles on a Sofia (SOF) 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 SOF (SOF)?
If you're planning to travel to Kathmandu from SOF (SOF), you can fly into Tribhuvan Intl. (KTM) Some flights may connect through major hubs like Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC), Vienna Intl. (VIE) 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 Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.) at the last minute?
Typically, booking a last minute flight from Sofia (SOF) 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 Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.) flight and hotel package?
Securing a Sofia (SOF) 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 Sofia (SOF) to Kathmandu (KTM-Tribhuvan Intl.)?
If you booked your Sofia (SOF) 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
Sofia
Destination airport
Tribhuvan Intl.
Airlines serving
Emirates, KLM, Qatar Airways, flydubai
Roundtrip price
$1,337
Distance
3564 mi

Book with confidence

Sofia to Kathmandu Flights

The cheapest times to fly from Sofia 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 Sofia to Kathmandu are during the month of May. You can find some of the cheapest flights from Sofia to Kathmandu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sofia to Kathmandu

Sunday is one of the best days to book for cheap flights from Sofia 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 Sofia 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 Sofia to Kathmandu in 2026. You can also book with separate airlines for your outbound and return journeys, from $593 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 Sofia 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 Sofia 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.

 

Sofia to Kathmandu Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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