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Cheap flights from Portland to Kathmandu from $450

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 8/17. 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
0 bags

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Find the cheapest flights from Portland to Kathmandu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:35 pm - 5:00 pm
PDX
-
KTM
38h 40m
2 stops
Multiple Airlines Logo
6:15 pm - 9:35 pm
KTM
-
PDX
40h 05m
2 stops
$1,173Multiple Airlines
Fri, Apr 17 - Tue, May 12
Cathay Pacific Logo
7:05 am - 9:45 pm
PDX
-
KTM
49h 55m
2 stops
Cathay Pacific Logo
11:00 pm - 11:44 pm
KTM
-
PDX
37h 29m
2 stops
$1,178Cathay Pacific
Sun, Apr 19 - Wed, May 13
Qatar Airways Logo
8:30 am - 7:55 am
PDX
-
KTM
34h 40m
2 stops
Qatar Airways Logo
5:40 pm - 3:48 pm
KTM
-
PDX
34h 53m
2 stops
$1,200Qatar Airways
Thu, Mar 12 - Mon, Mar 16
Multiple Airlines Logo
1:35 pm - 5:00 pm
PDX
-
KTM
38h 40m
2 stops
Multiple Airlines Logo
6:15 pm - 9:35 pm
KTM
-
PDX
40h 05m
2 stops
$1,221Multiple Airlines
Mon, Apr 13 - Tue, Apr 21
Qatar Airways Logo
9:00 am - 7:55 am
PDX
-
KTM
34h 10m
2 stops
Qatar Airways Logo
6:15 pm - 7:34 pm
KTM
-
PDX
38h 04m
2 stops
$1,229Qatar Airways
Mon, Apr 13 - Tue, Apr 21
Qatar Airways Logo
2:42 pm - 4:45 pm
PDX
-
KTM
37h 18m
2 stops
Qatar Airways Logo
10:05 am - 9:35 pm
KTM
-
PDX
48h 15m
2 stops
$1,239Qatar Airways
Sat, Mar 28 - Mon, Apr 6
Multiple Airlines Logo
1:35 pm - 5:00 pm
PDX
-
KTM
38h 40m
2 stops
Multiple Airlines Logo
10:55 am - 8:50 pm
KTM
-
PDX
46h 40m
2 stops
$1,244Multiple Airlines
Fri, Apr 17 - Thu, May 14
Qatar Airways Logo
8:45 am - 7:55 am
PDX
-
KTM
34h 25m
2 stops
Qatar Airways Logo
6:15 pm - 7:34 pm
KTM
-
PDX
38h 04m
2 stops
$1,250Qatar Airways
Sun, Apr 26 - Wed, May 6
Qatar Airways Logo
1:35 pm - 5:50 pm
PDX
-
KTM
39h 30m
2 stops
Qatar Airways Logo
10:05 am - 9:52 pm
KTM
-
PDX
48h 32m
2 stops
$1,252Qatar Airways
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
1:52 pm - 5:00 pm
PDX
-
KTM
38h 23m
2 stops
Multiple Airlines Logo
10:55 am - 4:51 pm
KTM
-
PDX
42h 41m
2 stops
$1,262Multiple Airlines
Sun, Apr 26 - Thu, May 7

Qatar Airways flights from Portland to Kathmandu

Our best Qatar Airways deals on Portland to Kathmandu flight tickets
Qatar Airways
Mar 8
PDX9:30 amPortland
42h 10m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Apr 7
KTM6:00 pmKathmandu Tribhuvan
40h 20m
2 stops
PDX9:35 pmPortland
$1,179
Qatar Airways
Mar 12
PDX8:30 amPortland
34h 40m
2 stops
KTM7:55 amKathmandu Tribhuvan
Mar 16
KTM5:40 pmKathmandu Tribhuvan
34h 53m
2 stops
PDX3:48 pmPortland
$1,200
Qatar Airways
Apr 13
PDX9:00 amPortland
34h 10m
2 stops
KTM7:55 amKathmandu Tribhuvan
Apr 21
KTM6:15 pmKathmandu Tribhuvan
38h 04m
2 stops
PDX7:34 pmPortland
$1,229

SWISS flights from Portland to Kathmandu

Our best SWISS deals on Portland to Kathmandu flight tickets
SWISS
Mar 7
PDX1:39 pmPortland
51h 11m
3 stops
KTM6:35 amKathmandu Tribhuvan
Apr 3
KTM9:10 pmKathmandu Tribhuvan
36h 23m
3 stops
PDX8:48 pmPortland
$2,675
SWISS
Mar 6
PDX1:39 pmPortland
51h 11m
3 stops
KTM6:35 amKathmandu Tribhuvan
Apr 3
KTM9:10 pmKathmandu Tribhuvan
36h 23m
3 stops
PDX8:48 pmPortland
$2,685

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 February 28, 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

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Fri 4/17

1:35 pm-5:00 pm

2 stops38h 40m

Kathmandu Tribhuvan

Tue 5/12

6:15 pm-9:35 pm

2 stops40h 05m

$1,173

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 4/19

7:05 am-9:45 pm

2 stops49h 55m

Kathmandu Tribhuvan

Wed 5/13

11:00 pm-11:44 pm

2 stops37h 29m

$1,178

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 3/12

8:30 am-7:55 am

2 stops34h 40m

Kathmandu Tribhuvan

Mon 3/16

5:40 pm-3:48 pm

2 stops34h 53m

$1,200

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Mon 4/13

1:35 pm-5:00 pm

2 stops38h 40m

Kathmandu Tribhuvan

Tue 4/21

6:15 pm-9:35 pm

2 stops40h 05m

$1,221

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Mon 4/13

9:00 am-7:55 am

2 stops34h 10m

Kathmandu Tribhuvan

Tue 4/21

6:15 pm-7:34 pm

2 stops38h 04m

$1,229

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sat 3/28

2:42 pm-4:45 pm

2 stops37h 18m

Kathmandu Tribhuvan

Mon 4/6

10:05 am-9:35 pm

2 stops48h 15m

$1,239

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Fri 4/17

1:35 pm-5:00 pm

2 stops38h 40m

Kathmandu Tribhuvan

Thu 5/14

10:55 am-8:50 pm

2 stops46h 40m

$1,244

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 4/26

8:45 am-7:55 am

2 stops34h 25m

Kathmandu Tribhuvan

Wed 5/6

6:15 pm-7:34 pm

2 stops38h 04m

$1,250

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Thu 3/26

1:35 pm-5:50 pm

2 stops39h 30m

Kathmandu Tribhuvan

Thu 4/2

10:05 am-9:52 pm

2 stops48h 32m

$1,252

PortlandKathmandu

PDX - KTM

PDXKTM

Portland

Sun 4/26

1:52 pm-5:00 pm

2 stops38h 23m

Kathmandu Tribhuvan

Thu 5/7

10:55 am-4:51 pm

2 stops42h 41m

$1,262

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 cheapest month to fly to Kathmandu?

The month of October is another great option to travel to Kathmandu, with average flight prices from Portland averaging around $1,293.

How far in advance should I book a flight 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 $1,517 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 $1,119 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

29h 18m

Direct flights

None
The fastest flight from Portland to Kathmandu takes 29h 18m
There are no direct flights from Portland to Kathmandu. There are no popular flight routes from Portland to Kathmandu.
Search flight deals

  • 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 29h 18m.

  • 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
1,465 reviews
Search Singapore Airlines flights
Qatar AirwaysPriceFrom $1,161Free CancellationRating
7.4
3,745 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,161Free CancellationRating
7.6
1,180 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.

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