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Kathmandu

$556+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — KTM
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$1,288
(FlightHub)

One-way from

$556
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,368
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. 8% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This SmartFares deal was found by Cheapflights users on 9/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2610:40 amPDX - KTM
2 stops41h 00mMultiple Airlines
Tue 11/255:40 pmKTM - PDX
2 stops36h 55mMultiple Airlines
Deal found 9/9$1,319
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:35 pmPDX - KTM
2 stops39h 25mMultiple Airlines
Wed 9/2411:00 pmKTM - PDX
2 stops32h 55mMultiple Airlines
Deal found 9/9$1,346
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1610:30 amPDX - KTM
2 stops33h 35mQatar Airways
Tue 9/307:05 pmKTM - PDX
2 stops38h 15mQatar Airways
Deal found 9/10$1,383
This oojo deal was found by Cheapflights users on 9/9. 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 10/92:30 pmPDX - KTM
2 stops62h 35mQatar Airways
Thu 10/1611:30 amKTM - PDX
2 stops46h 05mQatar Airways
Deal found 9/9$1,420
This SmartFares deal was found by Cheapflights users on 9/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:30 amPDX - KTM
2 stops35h 00mMultiple Airlines
Fri 10/1711:30 amKTM - PDX
2 stops46h 05mMultiple Airlines
Deal found 9/10$1,470
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:40 amPDX - KTM
2 stops40h 00mQatar Airways
Fri 12/56:45 pmKTM - PDX
2 stops39h 50mQatar Airways
Deal found 9/10$1,484
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:00 amPDX - KTM
2 stops37h 05mQatar Airways
Fri 10/315:40 pmKTM - PDX
2 stops42h 42mQatar Airways
Deal found 9/10$1,529
This oojo deal was found by Cheapflights users on 9/10. 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 9/2410:59 amPDX - KTM
2 stops30h 31mMultiple Airlines
Mon 10/67:40 amKTM - PDX
2 stops37h 42mMultiple Airlines
Deal found 9/10$1,537
This oojo deal was found by Cheapflights users on 9/10. 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 10/99:30 pmPDX - KTM
2 stops44h 00mMultiple Airlines
Sun 1/1112:35 pmKTM - PDX
2 stops47h 34mMultiple Airlines
Deal found 9/10$1,567
This Mytrip deal was found by Cheapflights users on 9/10. 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 11/203:15 pmPDX - KTM
2 stops30h 20mMultiple Airlines
Fri 12/511:10 amKTM - PDX
3 stops45h 05mMultiple Airlines
Deal found 9/10$1,568
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1910:30 amPDX - KTM
2 stops41h 30mQatar Airways
Sun 10/57:05 pmKTM - PDX
2 stops38h 30mQatar Airways
Deal found 9/11$1,573
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:30 amPDX - KTM
2 stops33h 35mQatar Airways
Fri 10/315:40 pmKTM - PDX
2 stops42h 42mQatar Airways
Deal found 9/10$1,575

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 September 11, 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

Sun 10/26

10:40 am-4:25 pm

2 stops41h 00m

Kathmandu Tribhuvan

Tue 11/25

5:40 pm-4:50 pm

2 stops36h 55m

$1,319

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 9/16

10:30 am-8:50 am

2 stops33h 35m

Kathmandu Tribhuvan

Tue 9/30

7:05 pm-8:35 pm

2 stops38h 15m

$1,383

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Fri 10/10

10:30 am-10:15 am

2 stops35h 00m

Kathmandu Tribhuvan

Fri 10/17

11:30 am-8:50 pm

2 stops46h 05m

$1,470

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 11/20

10:40 am-4:25 pm

2 stops40h 00m

Kathmandu Tribhuvan

Fri 12/5

6:45 pm-8:50 pm

2 stops39h 50m

$1,484

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 10/9

9:30 pm-6:15 am

2 stops44h 00m

Kathmandu Tribhuvan

Sun 1/11

12:35 pm-10:24 pm

2 stops47h 34m

$1,567

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 11/20

3:15 pm-11:20 am

2 stops30h 20m

Kathmandu Tribhuvan

Fri 12/5

11:10 am-6:30 pm

3 stops45h 05m

$1,568

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Fri 9/19

10:30 am-4:45 pm

2 stops41h 30m

Kathmandu Tribhuvan

Sun 10/5

7:05 pm-8:50 pm

2 stops38h 30m

$1,573

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Mon 9/22

6:15 am-9:45 pm

2 stops50h 45m

Kathmandu Tribhuvan

Thu 10/2

11:00 pm-8:30 pm

2 stops34h 15m

$1,586

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 11/4

6:00 pm-11:00 pm

2 stops39h 15m

$556

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Mon 9/15

1:08 pm-1:50 pm

3 stops59h 57m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 15 results
1
2

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 August 29, 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, August is the cheapest month in which you can book a flight from Portland to Kathmandu (average of $1,206). Flying from Portland to Kathmandu in June is currently the most expensive (average of $1,683). 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 September 11, 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.

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 September 11, 2025.
Read through reviews of airlines operating flights from Portland to Kathmandu, such as Singapore Airlines, Cathay Pacific, 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
1,365 reviews

Food

7.7

Boarding

8.2

Overall

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.0

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
1,365 reviews
Singapore Airlines
8.1
Very good
1,365 reviews

Food

7.7

Boarding

8.2

Overall

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Cathay Pacific
7.6
Good
993 reviews
Singapore Airlines
8.1
Very good
1,365 reviews

Food

7.7

Boarding

8.2

Overall

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.0

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
3,624 reviews
Singapore Airlines
8.1
Very good
1,365 reviews

Food

7.7

Boarding

8.2

Overall

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.0

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.

  • How long is the flight from Portland to Kathmandu?

    Qatar Airways can get you from Portland to Kathmandu in just under 33h 35m. Your travel time can differ by up to . The distance from Portland to Kathmandu is about 7073 mi.

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

    Flying on Singapore Airlines is currently your cheapest option to Kathmandu, with prices starting at $1,041. Additional round-trip tickets that might be worth considering are offered by Qatar Airways and Cathay Pacific, with the lowest prices starting at $1,077 and $1,128, respectively. You may be able to fly from Portland to Kathmandu for 26% 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, August is the cheapest month in which you can book a flight from Portland to Kathmandu (average of $1,206). Flying from Portland to Kathmandu in June is currently the most expensive (average of $1,683). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,041Average$1,316FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,077Average$1,414FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,128Average$1,213FlexibilityNo cancel feeOn-time72%

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