$449 Cheap Flights from Portland (PDX) to Kathmandu (KTM)

View $449 flight on Tue, Aug 26, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Tribhuvan Intl. Airport (KTM)

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Cheap Flights from Portland to Kathmandu (PDX-KTM)

Prices were available within the past 7 days and start at $449 for one-way flights and $962 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Aug 27 - Mon, Sep 8
PDX
Portland
KTM
Kathmandu
$962 Roundtrip, found 2 days ago
$962
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Aug 27 from Portland to Kathmandu, returning Mon, Sep 8, priced at $962 found 2 days ago
Alaska Airlines
Thu, Aug 28 - Mon, Sep 8
PDX
Portland
KTM
Kathmandu
$981 Roundtrip, found 2 days ago
$981
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Aug 28 from Portland to Kathmandu, returning Mon, Sep 8, priced at $981 found 2 days ago
Alaska Airlines
Thu, Aug 28 - Mon, Sep 8
PDX
Portland
KTM
Kathmandu
$990 Roundtrip, found 2 days ago
$990
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Aug 28 from Portland to Kathmandu, returning Mon, Sep 8, priced at $990 found 2 days ago
Alaska Airlines
Thu, Aug 28 - Mon, Sep 8
PDX
Portland
KTM
Kathmandu
$995 Roundtrip, found 2 days ago
$995
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Aug 28 from Portland to Kathmandu, returning Mon, Sep 8, priced at $995 found 2 days ago
Alaska Airlines
Sat, Aug 30 - Mon, Sep 8
PDX
Portland
KTM
Kathmandu
$995 Roundtrip, found 5 days ago
$995
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Aug 30 from Portland to Kathmandu, returning Mon, Sep 8, priced at $995 found 5 days ago
Alaska Airlines
Sat, Aug 23 - Mon, Sep 1
PDX
Portland
KTM
Kathmandu
$1,020 Roundtrip, found 3 days ago
$1,020
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug 23 from Portland to Kathmandu, returning Mon, Sep 1, priced at $1,020 found 3 days ago
Singapore Airlines
Thu, Apr 2 - Sun, Apr 26
PDX
Portland
KTM
Kathmandu
$1,103 Roundtrip, found 6 days ago
$1,103
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Thu, Apr 2 from Portland to Kathmandu, returning Sun, Apr 26, priced at $1,103 found 6 days ago
United
Thu, Jan 29 - Tue, Feb 17
PDX
Portland
KTM
Kathmandu
$1,121 Roundtrip, found 3 days ago
$1,121
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 29 from Portland to Kathmandu, returning Tue, Feb 17, priced at $1,121 found 3 days ago
Qatar Airways
Wed, Oct 15 - Wed, Nov 19
PDX
Portland
KTM
Kathmandu
$1,372 Roundtrip, found 3 days ago
$1,372
Roundtrip
found 3 days ago
Select Qatar Airways flight, departing Wed, Oct 15 from Portland to Kathmandu, returning Wed, Nov 19, priced at $1,372 found 3 days ago
Cathay Pacific
Sat, Aug 23 - Mon, Sep 8
PDX
Portland
KTM
Kathmandu
$1,583 Roundtrip, found 6 hours ago
$1,583
Roundtrip
found 6 hours ago
Select Cathay Pacific flight, departing Sat, Aug 23 from Portland to Kathmandu, returning Mon, Sep 8, priced at $1,583 found 6 hours ago

Find the cheapest month to fly from Portland (PDX) to Kathmandu (KTM)

September is typically the cheapest month to fly

From $1,126 - $1,584 per traveler.

Graph displaying average flight prices per month

Alternative airports near Kathmandu

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tribhuvan Intl. KTM. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $1,583
KTM
Tribhuvan Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $1,583
Flights from Portland (PDX) to Kathmandu (KTM)
Origin airport
Portland Intl.
Destination airport
Tribhuvan Intl.
Airlines serving
Cathay Pacific, China Southern Airlines, Emirates, Etihad Airways, KLM, Korean Air, Malaysia Airlines, Qatar Airways, Singapore Airlines, Turkish Airlines
Roundtrip price
$962
Distance
7077 mi

Portland to Kathmandu Flights

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

 

The best time to book a flight from Portland to Kathmandu

Sunday is one of the best days to book for cheap flights from Portland 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 Portland 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 Portland to Kathmandu in 2025. You can also book with separate airlines for your outbound and return journeys, from $449 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 Portland 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 Portland 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.

 

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Tribhuvan Intl. Airport (KTM) cost?
Discover the latest flight deals from PDX to KTM by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PDX to KTM?
The cheapest flights from PDX to KTM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PDX to KTM?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PDX to KTM. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Portland Intl. Airport (PDX) to Tribhuvan Intl. Airport (KTM)?
There are no daily direct flights departing from Portland Intl. Airport (PDX) to Tribhuvan Intl. Airport (KTM). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from PDX to KTM?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Tribhuvan Intl. Airport (KTM)?
To touch down at Tribhuvan Intl. Airport (KTM) on schedule, pick a flight that takes off from Portland Intl. Airport (PDX) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Tribhuvan Intl. Airport (KTM) last-minute?
Waiting until just before your trip to book your flight from PDX to KTM generally means paying more. While you might find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of snagging a bargain.
Is it cheaper to book a PDX to KTM flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to KTM flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place takes the hassle out of travel planning. Just pick your flights and select from our extensive range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Tribhuvan Intl. Airport (KTM)?
It's usually possible to reschedule or cancel your PDX to KTM flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.