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Cheap flights from Portland to Kathmandu from $599

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Kathmandu departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Kathmandu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
1:59 pm - 9:50 am
PDX
-
KTM
31h 06m
2 stops
Qatar Airways Logo
6:00 pm - 4:50 pm
KTM
-
PDX
35h 35m
2 stops
$1,083Qatar Airways
Thu, Sep 3 - Mon, Sep 21
Multiple Airlines Logo
11:48 am - 8:50 am
PDX
-
KTM
32h 17m
2 stops
Multiple Airlines Logo
6:00 pm - 7:50 pm
KTM
-
PDX
38h 35m
2 stops
$1,086Multiple Airlines
Thu, Sep 3 - Mon, Sep 21
Multiple Airlines Logo
1:59 pm - 9:50 am
PDX
-
KTM
31h 06m
2 stops
Multiple Airlines Logo
6:45 pm - 7:50 pm
KTM
-
PDX
37h 50m
2 stops
$1,131Multiple Airlines
Tue, Sep 1 - Sun, Sep 20
Multiple Airlines Logo
1:59 pm - 9:50 am
PDX
-
KTM
31h 06m
2 stops
Multiple Airlines Logo
6:45 pm - 7:50 pm
KTM
-
PDX
37h 50m
2 stops
$1,132Multiple Airlines
Tue, Sep 1 - Sun, Sep 20
Multiple Airlines Logo
6:20 am - 8:50 am
PDX
-
KTM
37h 45m
2 stops
Multiple Airlines Logo
10:05 am - 7:50 pm
KTM
-
PDX
46h 30m
2 stops
$1,152Multiple Airlines
Wed, Aug 19 - Fri, Sep 4
Multiple Airlines Logo
1:48 pm - 9:50 am
PDX
-
KTM
31h 17m
2 stops
Multiple Airlines Logo
6:00 pm - 6:37 pm
KTM
-
PDX
37h 22m
2 stops
$1,171Multiple Airlines
Sat, Aug 8 - Sun, Sep 6
Qatar Airways Logo
11:48 am - 8:50 am
PDX
-
KTM
32h 17m
2 stops
Qatar Airways Logo
6:00 pm - 7:50 pm
KTM
-
PDX
38h 35m
2 stops
$1,181Qatar Airways
Wed, Aug 19 - Fri, Sep 4
Qatar Airways Logo
11:48 am - 8:50 am
PDX
-
KTM
32h 17m
2 stops
Qatar Airways Logo
6:00 pm - 7:50 pm
KTM
-
PDX
38h 35m
2 stops
$1,182Qatar Airways
Wed, Aug 19 - Fri, Sep 4
Multiple Airlines Logo
1:48 pm - 8:50 am
PDX
-
KTM
30h 17m
2 stops
Multiple Airlines Logo
10:05 am - 4:49 pm
KTM
-
PDX
43h 29m
2 stops
$1,199Multiple Airlines
Sat, Aug 8 - Sat, Sep 5
Multiple Airlines Logo
12:03 pm - 8:50 am
PDX
-
KTM
32h 02m
2 stops
Multiple Airlines Logo
10:05 am - 4:49 pm
KTM
-
PDX
43h 29m
2 stops
$1,202Multiple Airlines
Sun, Aug 9 - Sat, Sep 5

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Qatar Airways flights from Portland to Kathmandu

Our best Qatar Airways deals on Portland to Kathmandu flight tickets
Qatar Airways
Sep 3
PDX1:59 pmPortland
31h 06m
2 stops
KTM9:50 amKathmandu Tribhuvan
Sep 21
KTM6:00 pmKathmandu Tribhuvan
35h 35m
2 stops
PDX4:50 pmPortland
$1,083
Qatar Airways
Aug 19
PDX11:48 amPortland
32h 17m
2 stops
KTM8:50 amKathmandu Tribhuvan
Sep 4
KTM6:00 pmKathmandu Tribhuvan
38h 35m
2 stops
PDX7:50 pmPortland
$1,181
Qatar Airways
Aug 19
PDX11:48 amPortland
32h 17m
2 stops
KTM8:50 amKathmandu Tribhuvan
Sep 4
KTM6:00 pmKathmandu Tribhuvan
38h 35m
2 stops
PDX7:50 pmPortland
$1,182

momondo 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, momondo users made 832,500 searches. Data last updated July 1, 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
Quickest round-trip

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 9/3

1:59 pm-9:50 am

2 stops31h 06m

Kathmandu Tribhuvan

Mon 9/21

6:00 pm-4:50 pm

2 stops35h 35m

$1,083

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 9/3

11:48 am-8:50 am

2 stops32h 17m

Kathmandu Tribhuvan

Mon 9/21

6:00 pm-7:50 pm

2 stops38h 35m

$1,086

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 9/1

1:59 pm-9:50 am

2 stops31h 06m

Kathmandu Tribhuvan

Sun 9/20

6:45 pm-7:50 pm

2 stops37h 50m

$1,131

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Tue 9/1

1:59 pm-9:50 am

2 stops31h 06m

Kathmandu Tribhuvan

Sun 9/20

6:45 pm-7:50 pm

2 stops37h 50m

$1,132

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 8/19

6:20 am-8:50 am

2 stops37h 45m

Kathmandu Tribhuvan

Fri 9/4

10:05 am-7:50 pm

2 stops46h 30m

$1,152

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sat 8/8

1:48 pm-9:50 am

2 stops31h 17m

Kathmandu Tribhuvan

Sun 9/6

6:00 pm-6:37 pm

2 stops37h 22m

$1,171

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 8/19

11:48 am-8:50 am

2 stops32h 17m

Kathmandu Tribhuvan

Fri 9/4

6:00 pm-7:50 pm

2 stops38h 35m

$1,181

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Wed 8/19

11:48 am-8:50 am

2 stops32h 17m

Kathmandu Tribhuvan

Fri 9/4

6:00 pm-7:50 pm

2 stops38h 35m

$1,182

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sat 8/8

1:48 pm-8:50 am

2 stops30h 17m

Kathmandu Tribhuvan

Sat 9/5

10:05 am-4:49 pm

2 stops43h 29m

$1,199

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 8/9

12:03 pm-8:50 am

2 stops32h 02m

Kathmandu Tribhuvan

Sat 9/5

10:05 am-4:49 pm

2 stops43h 29m

$1,202

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kathmandu from

How to get the cheapest flight ticket from Portland to Kathmandu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Kathmandu?

What is the cheapest month to fly to Kathmandu?

The month of January is another great option to travel to Kathmandu, with average flight prices from Portland averaging around $1,234.

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

You are more likely to see cheaper flights to Kathmandu from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,506 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from Portland for as low as $1,129 on momondo.

When to book flights from Portland to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Kathmandu according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Kathmandu (PDX to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Kathmandu

Fastest flight time

27h 40m

Direct flights

None
The fastest flight from Portland to Kathmandu takes 27h 40m
There are no direct flights from Portland to Kathmandu. There are no popular flight routes from Portland to Kathmandu.
Search flight deals

Frequently asked questions about flying from Portland to Kathmandu

  • How far is Portland to Kathmandu Tribhuvan by plane?

    A flight from Portland to Kathmandu Tribhuvan will travel around 7074.4 mi. A reasonable flight in good conditions will take 27h 40m.

  • When did momondo last update prices for flights from Portland Airport to Kathmandu Tribhuvan Airport?

    Prices for flights from Portland Airport to Kathmandu Tribhuvan Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Kathmandu Tribhuvan Airport?

  • How old do you have to be to fly from Portland Airport to Kathmandu Tribhuvan Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Kathmandu Tribhuvan Airport.

  • What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

    The required travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kathmandu Tribhuvan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Portland to Kathmandu?

Best airlines flying from Portland to Kathmandu

Compare and see reviews for airlines that fly from Portland to Kathmandu with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $1,092Free CancellationRating
8.2
1,557 reviews
Search Singapore Airlines flights
Qatar AirwaysPriceFrom $1,161Free CancellationRating
7.3
3,738 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,228Free CancellationRating
7.6
1,398 reviews
Search Cathay Pacific flights

Traveling to a place near Kathmandu?

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

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Kathmandu?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Kathmandu. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Kathmandu with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Kathmandu flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Kathmandu?

momondo helps you find the best flight between Portland and Kathmandu by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Kathmandu right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Kathmandu, momondo offers a useful price alert feature which will track prices for flights to Kathmandu from Portland and alert you when they change.

An easier way to manage your Kathmandu trip

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Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Qatar Airways
Cathay Pacific
Singapore Airlines