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 $1,012. Additional round-trip tickets that might be worth considering are offered by Qatar Airways and Cathay Pacific, with the lowest prices starting at $1,145 and $1,147, respectively. You may be able to fly from Portland to Kathmandu for 28% less than the average price by searching for these airlines.

What is the cheapest day to fly from Portland to Kathmandu?

Travelers seeking maximum savings on their Portland to Kathmandu flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Portland to Kathmandu?

Before booking your flight from Portland to Kathmandu check out the most popular airlines for this route: Cathay Pacific, Qatar Airways or Singapore Airlines.

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

Flights departing from Portland and landing in Kathmandu layover in Seattle 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.

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

If you're on a layover in Seattle and looking for things to do, consider visiting Pike Place Market, Space Needle, or Seattle Waterfront. Those on a layover in Seattle interested in visiting Pike Place Market, Space Needle, or Seattle Waterfront can do so by traveling 11.2 mi, 12.0 mi, and 10.9 mi, respectively from Seattle/Tacoma Intl. Travelers can book a car rental at Seattle/Tacoma Intl for about $49 per day to make their sightseeing more efficient.

What is the cheapest day to fly round-trip from Portland to Kathmandu?

Saturday flights are found to be more expensive to fly from Portland to Kathmandu. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Kathmandu.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 27 days in advance, which can save you up to 22% on flights from Portland to Kathmandu compared to booking the week you need them. Waiting 27 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,220. For sooner than that we have options available in the next 3 days from $1,322.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Kathmandu. Flights to Kathmandu from Portland in January are about $1,420 on average during January, but can be found for as low as $1,053.

Most accurate provider : When it comes to deals on Portland-Kathmandu flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland-Kathmandu flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

$1,012+ Flights from Portland to Kathmandu - Compare & Save Big

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Find cheap flights from Portland to Kathmandu with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Portland to Kathmandu Tribhuvan are usually found in January or September, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Portland to Kathmandu

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,012 (FlightHub)
Popular in	June
Cheapest in	January
Average price	$1,320

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

Highest demand for flights based on searches. 18% potential increase in price ($328 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($74 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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 April 29, 2025.

Thu 9/47:00 amPDX - KTM

2 stops26h 00mSingapore Airlines

Sat 9/2011:00 pmKTM - PDX

2 stops26h 09mSingapore Airlines

Deal found 4/29

$1,012

Sun 9/217:21 amPDX - KTM

2 stops36h 44mQatar Airways

Tue 10/285:40 pmKTM - PDX

2 stops42h 58mQatar Airways

Deal found 4/27

$1,145

Wed 9/245:36 pmPDX - KTM

2 stops39h 24mCathay Pacific

Sun 10/511:00 pmKTM - PDX

2 stops47h 32mCathay Pacific

Deal found 4/29

$1,147

Sat 9/69:30 pmPDX - KTM

2 stops46h 35mMultiple Airlines

Sat 10/256:00 pmKTM - PDX

2 stops37h 38mMultiple Airlines

Deal found 4/28

$1,279

Tue 10/2110:50 amPDX - KTM

2 stops32h 25mEmirates

Mon 12/812:55 amKTM - PDX

2 stops33h 28mEmirates

Deal found 4/28

$2,370

Best flights from Portland to Kathmandu
Discover carefully curated flight deals from Portland to Kathmandu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.

Thu 9/47:00 amPDX - KTM

2 stops26h 00mSingapore Airlines

Sat 9/2011:00 pmKTM - PDX

2 stops26h 09mSingapore Airlines

Deal found 4/29

$1,012

Sun 9/217:21 amPDX - KTM

2 stops36h 44mQatar Airways

Tue 10/285:40 pmKTM - PDX

2 stops42h 58mQatar Airways

Deal found 4/27

$1,145

Wed 9/245:36 pmPDX - KTM

2 stops39h 24mCathay Pacific

Sun 10/511:00 pmKTM - PDX

2 stops47h 32mCathay Pacific

Deal found 4/29

$1,147

Sat 9/69:30 pmPDX - KTM

2 stops46h 35mMultiple Airlines

Sat 10/256:00 pmKTM - PDX

2 stops37h 38mMultiple Airlines

Deal found 4/28

$1,279

Tue 10/2110:50 amPDX - KTM

2 stops32h 25mEmirates

Mon 12/812:55 amKTM - PDX

2 stops33h 28mEmirates

Deal found 4/28

$2,370

Last-minute flights from Portland to Kathmandu
Discover last-minute flight deals from Portland to Kathmandu. Data last updated April 29, 2025 and is based on user searches.

Sun 5/49:35 amPDX - KTM

2 stops34h 30mQatar Airways

Mon 5/266:00 pmKTM - PDX

2 stops39h 28mQatar Airways

Deal found 4/27

$1,230

Sun 5/46:15 amPDX - KTM

2 stops50h 45mMultiple Airlines

Mon 5/2611:00 pmKTM - PDX

3 stops34h 33mMultiple Airlines

Deal found 4/27

$1,760

Wed 5/75:39 pmPDX - KTM

2 stops39h 21mCathay Pacific

Tue 5/2011:00 pmKTM - PDX

2 stops30h 09mCathay Pacific

Deal found 4/29

$2,539

Wed 5/77:00 amPDX - KTM

3 stops50h 00mSingapore Airlines

Tue 5/2011:00 pmKTM - PDX

2 stops47h 30mSingapore Airlines

Deal found 4/29

$3,445

Cheapflights Fare Finder

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

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 9/4

7:00 am-9:45 pm

2 stops26h 00m

Kathmandu Tribhuvan

Sat 9/20

11:00 pm-12:24 pm

2 stops26h 09m

$1,012

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 9/21

7:21 am-8:50 am

2 stops36h 44m

Kathmandu Tribhuvan

Tue 10/28

5:40 pm-11:53 pm

2 stops42h 58m

$1,145

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 9/24

5:36 pm-9:45 pm

2 stops39h 24m

Kathmandu Tribhuvan

Sun 10/5

11:00 pm-9:47 am

2 stops47h 32m

$1,147

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sat 9/6

9:30 pm-8:50 am

2 stops46h 35m

Kathmandu Tribhuvan

Sat 10/25

6:00 pm-6:53 pm

2 stops37h 38m

$1,279

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 10/21

10:50 am-8:00 am

2 stops32h 25m

Kathmandu Tribhuvan

Mon 12/8

12:55 am-8:38 pm

2 stops33h 28m

$2,370

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Portland to Kathmandu

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Kathmandu in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland-Kathmandu flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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

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

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 $1,886). 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?

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.

Rainfall in Kathmandu by month

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

Temperature in Kathmandu by month

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Kathmandu

See what other customers who have flown with Singapore Airlines, Emirates and Cathay Pacific from Portland to Kathmandu have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.1

Very good

1,292 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Singapore Airlines

8.1

Very good

1,292 reviews

Singapore Airlines

8.1

Very good

1,292 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Emirates

8.0

Very good

3,213 reviews

Singapore Airlines

8.1

Very good

1,292 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Cathay Pacific

7.5

Good

852 reviews

Singapore Airlines

8.1

Very good

1,292 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Qatar Airways

7.4

Good

3,563 reviews

Singapore Airlines

8.1

Very good

1,292 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

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 $1,012. Additional round-trip tickets that might be worth considering are offered by Qatar Airways and Cathay Pacific, with the lowest prices starting at $1,145 and $1,147, respectively. You may be able to fly from Portland to Kathmandu for 28% 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 Seattle most frequently.
What are some popular things to do or see while on a layover in Seattle?
If you're on a layover in Seattle and looking for things to do, consider visiting Pike Place Market, Space Needle, or Seattle Waterfront. Those on a layover in Seattle interested in visiting Pike Place Market, Space Needle, or Seattle Waterfront can do so by traveling 11.2 mi, 12.0 mi, and 10.9 mi, respectively from Seattle/Tacoma Intl. Travelers can book a car rental at Seattle/Tacoma Intl for about $49 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 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, 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 $1,886). 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

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Alternative routes for Portland to Kathmandu

Boise to Kathmandu flights

Medford to Kathmandu flights

Redmond to Kathmandu flights

Other flights to Kathmandu

Top 3 airlines flying from Portland to Kathmandu

Airline	Cheapest	Average	Flexibility	On-time
Singapore Airlines	Cheapest$987	Average$1,306	FlexibilityNo cancel fee	On-time81%
Qatar Airways	Cheapest$1,079	Average$1,311	FlexibilityNo cancel fee	On-time68%
Cathay Pacific	Cheapest$1,128	Average$1,194	FlexibilityNo cancel fee	On-time72%

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$1,012+ Cheap flights from Portland (PDX) to Kathmandu (KTM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Kathmandu with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Kathmandu Tribhuvan are usually found in January or September, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Portland to Kathmandu

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Kathmandu

Cheapest flights from Portland to KathmanduExplore 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 April 29, 2025.

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 April 29, 2025.

Cheapflights Fare Finder

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

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 April.

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.

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 April 25, 2025.

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

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 April 29, 2025.

Rainfall in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average rainfall totals by month.

Temperature in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average temperature totals by month.

Reviews of airlines servicing Kathmandu

See what other customers who have flown with Singapore Airlines, Emirates and Cathay Pacific from Portland to Kathmandu have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

How can I find direct flights from Portland to Kathmandu?

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

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

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Alternative routes for Portland to Kathmandu

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Top 3 airlines flying from Portland to Kathmandu

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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 April 29, 2025.