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Kathmandu

$668+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — KTM
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheap 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 26, 2026.

This oojo deal was found by Cheapflights users on 7/26. 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.
Mon 9/78:07 am
PDX
-
KTM
2 stops35h 58m
Qatar Airways
Mon 9/146:00 pm
KTM
-
PDX
2 stops35h 35m
Qatar Airways
Deal found 7/26$1,082
This oojo deal was found by Cheapflights users on 7/25. 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 9/311:48 am
PDX
-
KTM
2 stops37h 42m
Qatar Airways
Mon 9/216:00 pm
KTM
-
PDX
2 stops35h 35m
Qatar Airways
Deal found 7/25$1,085
This FlightHub deal was found by Cheapflights users on 7/21. 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 9/311:48 am
PDX
-
KTM
2 stops32h 17m
Multiple Airlines
Mon 9/216:00 pm
KTM
-
PDX
2 stops38h 35m
Multiple Airlines
Deal found 7/21$1,088
This FlightHub deal was found by Cheapflights users on 7/26. 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 9/241:59 pm
PDX
-
KTM
2 stops38h 01m
Multiple Airlines
Mon 3/16:45 pm
KTM
-
PDX
2 stops41h 44m
Multiple Airlines
Deal found 7/26$1,090
This FlightHub deal was found by Cheapflights users on 7/24. 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.
Wed 11/48:05 am
PDX
-
KTM
2 stops36h 00m
Multiple Airlines
Wed 11/1811:05 am
KTM
-
PDX
2 stops50h 34m
Multiple Airlines
Deal found 7/24$1,099
This Justfly.com deal was found by Cheapflights users on 7/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/254:06 pm
PDX
-
KTM
2 stops51h 59m
Multiple Airlines
Fri 12/255:40 pm
KTM
-
PDX
2 stops40h 55m
Multiple Airlines
Deal found 7/21$1,100
This Justfly.com deal was found by Cheapflights users on 7/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:31 am
PDX
-
KTM
2 stops39h 59m
Multiple Airlines
Wed 11/189:35 am
KTM
-
PDX
2 stops45h 00m
Multiple Airlines
Deal found 7/25$1,101
This FlightHub deal was found by Cheapflights users on 7/22. 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 11/108:05 am
PDX
-
KTM
2 stops36h 00m
Qatar Airways
Thu 12/106:45 pm
KTM
-
PDX
2 stops33h 55m
Qatar Airways
Deal found 7/22$1,103
This Justfly.com deal was found by Cheapflights users on 7/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:36 pm
PDX
-
KTM
2 stops48h 29m
Qatar Airways
Thu 12/249:35 am
KTM
-
PDX
2 stops49h 00m
Qatar Airways
Deal found 7/25$1,111
This Trip.com deal was found by Cheapflights users on 7/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:05 am
PDX
-
KTM
2 stops44h 35m
Multiple Airlines
Thu 12/175:40 pm
KTM
-
PDX
2 stops43h 03m
Multiple Airlines
Deal found 7/22$1,125

Find 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 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,082
(oojo)

One-way from

$668
(Kiwi.com)

Popular in

August

Cheapest in

May

Average price

$1,797
Provider with most accurate pricing for Portland-Kathmandu Tribhuvan flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Kathmandu Tribhuvan flights.
Search Deals
From Portland to Kathmandu Tribhuvan
Search Deals
One-way flight from Portland to Kathmandu Tribhuvan
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($302 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 26, 2026.
Use the filters below to find and compare flights from Portland to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 10/13

5:06 am-2:15 pm

2 stops44h 24m

Kathmandu Tribhuvan

Tue 11/10

5:40 pm-9:55 pm

2 stops42h 00m

$1,187
Quickest round-trip

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sat 9/5

12:46 pm-8:50 am

2 stops31h 19m

Kathmandu Tribhuvan

Sat 9/19

6:00 pm-4:50 pm

2 stops35h 35m

$1,269

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 9/6

10:33 am-2:15 pm

2 stops38h 57m

Kathmandu Tribhuvan

Wed 9/23

6:45 pm-4:50 pm

2 stops34h 50m

$1,302

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Mon 10/19

9:31 am-2:15 pm

2 stops39h 59m

Kathmandu Tribhuvan

Fri 11/13

9:35 am-11:59 pm

2 stops52h 09m

$1,319

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 9/10

7:09 am-8:50 am

2 stops36h 56m

Kathmandu Tribhuvan

Mon 9/14

6:00 pm-4:50 pm

2 stops35h 35m

$1,327

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Fri 10/16

11:03 am-2:15 pm

2 stops38h 27m

Kathmandu Tribhuvan

Sat 11/14

9:35 am-4:50 pm

2 stops45h 00m

$1,350

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 11/25

5:00 am-9:50 am

2 stops39h 05m

Kathmandu Tribhuvan

Mon 1/11

6:45 pm-12:10 am

2 stops43h 10m

$1,595

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 11/26

6:00 am-9:50 am

2 stops38h 05m

Kathmandu Tribhuvan

Sun 1/10

5:40 pm-6:33 pm

2 stops38h 38m

$1,641

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 11/25

9:30 pm-9:50 am

2 stops46h 35m

Kathmandu Tribhuvan

Fri 1/8

5:40 pm-12:10 am

2 stops44h 15m

$1,684

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 11/24

10:54 am-8:20 am

2 stops31h 41m

Kathmandu Tribhuvan

Thu 1/14

6:45 pm-10:44 pm

2 stops41h 44m

$1,768

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Portland to Kathmandu

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Kathmandu in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
BudgetAirPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Kathmandu flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Kathmandu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, May is the cheapest month in which you can book a flight from Portland to Kathmandu (average of $1,115). Flying from Portland to Kathmandu in August is currently the most expensive (average of $2,124). 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.

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

Airfare is below average for this route at the moment.

Portland to Kathmandu flights typically cost between $1,716 and $2,026 in September.
The cheapest round-trip price found within the last 5 days was $1,082 on Qatar Airways (Sep 7-Sep 14).

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 26, 2026.
Read through reviews of airlines operating flights from Portland to Kathmandu, such as Singapore Airlines,Cathay Pacific, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very good
1,581 reviews

Boarding

8.3

Overall

8.2

Entertainment

8.1

Crew

8.6

Comfort

8.0

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Singapore Airlines
8.2
Very good
1,581 reviews
Singapore Airlines
8.2
Very good
1,581 reviews

Boarding

8.3

Overall

8.2

Entertainment

8.1

Crew

8.6

Comfort

8.0

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Cathay Pacific
7.6
Good
1,431 reviews
Singapore Airlines
8.2
Very good
1,581 reviews

Boarding

8.3

Overall

8.2

Entertainment

8.1

Crew

8.6

Comfort

8.0

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Qatar Airways
7.4
Good
3,744 reviews
Singapore Airlines
8.2
Very good
1,581 reviews

Boarding

8.3

Overall

8.2

Entertainment

8.1

Crew

8.6

Comfort

8.0

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. 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 44h 24m. 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 $1,093. Additional round-trip tickets that might be worth considering are offered by Qatar Airways and Cathay Pacific, with the lowest prices starting at $1,161 and $1,228, respectively. You may be able to fly from Portland to Kathmandu for 27% 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.

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

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

  • 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, May is the cheapest month in which you can book a flight from Portland to Kathmandu (average of $1,115). Flying from Portland to Kathmandu in August is currently the most expensive (average of $2,124). 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

Browse thousands of different options on Cheapflights for your next trip

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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

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 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,092Average$1,293FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,161Average$1,358FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,228Average$1,561FlexibilityNo cancel feeOn-time72%

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