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Kathmandu

$454+ Cheap flights from Portland (PDX) to Kathmandu (KTM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — KTM
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Kathmandu Tribhuvan are usually found in January or March, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Portland to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$1,289
(oojo)

One-way from

$454
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,568
From Portland to Kathmandu Tribhuvan
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One-way flight from Portland to Kathmandu Tribhuvan
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Highest demand for flights based on searches. 9% potential increase in price ($150 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Kathmandu

Cheapest flights from Portland to Kathmandu
Explore the most affordable flight options available from Portland to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This oojo deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:00 amPDX - KTM
2 stops37h 05mQatar Airways
Fri 9/266:00 pmKTM - PDX
2 stops39h 20mQatar Airways
Deal found 7/28$1,289
This Mytrip deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/43:25 pmPDX - KTM
2 stops30h 35mMultiple Airlines
Fri 9/261:30 pmKTM - PDX
3 stops42h 01mMultiple Airlines
Deal found 7/28$1,423
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:20 amPDX - KTM
3 stops48h 35mSingapore Airlines
Wed 12/1711:00 pmKTM - PDX
2 stops25h 38mSingapore Airlines
Deal found 7/29$1,609

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Kathmandu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Portland to Kathmandu that are best for you.

Fly from

Portland

Fly to

Kathmandu

Route

Depart

Return

Price

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 9/4

7:00 am-8:50 am

2 stops37h 05m

Kathmandu Tribhuvan

Fri 9/26

6:00 pm-8:35 pm

2 stops39h 20m

$1,289

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 9/4

3:25 pm-10:45 am

2 stops30h 35m

Kathmandu Tribhuvan

Fri 9/26

1:30 pm-6:46 pm

3 stops42h 01m

$1,423

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 11/12

7:20 am-9:40 pm

3 stops48h 35m

Kathmandu Tribhuvan

Wed 12/17

11:00 pm-10:53 am

2 stops25h 38m

$1,609

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 8/27

7:10 am-9:45 pm

2 stops49h 50m

$454

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 1/6

7:00 am-9:50 pm

2 stops49h 05m

$635

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 8/21

10:30 am-8:50 am

2 stops33h 35m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Portland to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Kathmandu

How far ahead should I book a flight from Portland to Kathmandu?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Kathmandu. Price data was last updated on July 25, 2025.

The price you pay for your flight from Portland to Kathmandu may vary depending on when you book. For the best chance of a lower fare, look to book 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Kathmandu?

Currently, September is the cheapest month in which you can book a flight from Portland to Kathmandu (average of $1,237). Flying from Portland to Kathmandu in June is currently the most expensive (average of $1,684). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to KTM?

Find hourly flight availability from Portland to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Kathmandu as you normally would.

How much does it cost to fly round-trip from Portland to Kathmandu?

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kathmandu. Reviews last updated July 29, 2025.
Read through reviews of airlines operating flights from Portland to Kathmandu, such as Singapore Airlines and Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,335 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Singapore Airlines
8.1
Very good
1,335 reviews
Singapore Airlines
8.1
Very good
1,335 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Qatar Airways
7.4
Good
3,609 reviews
Singapore Airlines
8.1
Very good
1,335 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.

Related info for your journey

Find useful and relevant information for your journey from Portland to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland to Kathmandu round-trip?

    Flying on Qatar Airways is currently your cheapest option to Kathmandu, with prices starting at $1,289. Another option worth looking into is Singapore Airlines, starting at $1,609 round trip. You may be able to fly from Portland to Kathmandu for 6% less than the average price by searching for these airlines.

  • Where are the most common layover locations when flying from Portland to Kathmandu?

    Flights departing from Portland and landing in Kathmandu layover in Doha most frequently.

  • What are some popular things to do or see while on a layover in Doha?

    If you're on a layover in Doha and looking for things to do, consider visiting Museum of Islamic Art, Katara Cultural Village, or Aspire Tower. Those on a layover in Doha interested in visiting Museum of Islamic Art, Katara Cultural Village, or Aspire Tower can do so by traveling 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Travelers can book a car rental at Doha Hamad Intl for about $19 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Portland to Kathmandu flights?

    The least popular layover on flights from Portland to Kathmandu is Seattle.

  • Can I find deals for flights from Portland to Kathmandu that include hotel bookings?

    Yes. In addition to deals on Portland to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Kathmandu.

  • Can I find deals for business class flights from Portland to Kathmandu?

    Yes. Cheapflights offers flight deals from Portland to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Kathmandu?

    Currently, September is the cheapest month in which you can book a flight from Portland to Kathmandu (average of $1,237). Flying from Portland to Kathmandu in June is currently the most expensive (average of $1,684). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

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Alternative routes for Portland to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.
Medford to Kathmandu flights
Boise to Kathmandu flights
Redmond to Kathmandu flights

Top 3 airlines flying from Portland to Kathmandu

Discover the top 3 airlines that operate flights from Portland to Kathmandu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,041Average$1,331FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,078Average$1,344FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,128Average$1,210FlexibilityNo cancel feeOn-time72%

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