PDX - KTM

$739 Find Cheap Flights from Portland to Kathmandu

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Kathmandu departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Kathmandu

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Kathmandu, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Kathmandu, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Portland to Kathmandu (PDX-KTM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Kathmandu that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Kathmandu

Wed, Nov 5 - Wed, Jan 21
Multiple Airlines Logo
5:55 pm - 11:10 amPDX-KTM
51h 30m2 stops
Multiple Airlines Logo
12:35 pm - 8:38 pmKTM-PDX
45h 48m2 stops
$1,276Multiple Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 18
Qatar Airways Logo
10:40 am - 4:25 pmPDX-KTM
40h 00m2 stops
Qatar Airways Logo
6:45 pm - 8:50 pmKTM-PDX
39h 50m2 stops
$1,288Qatar Airways
Find Deal
Mon, Oct 13 - Mon, Oct 20
Qatar Airways Logo
7:45 am - 10:15 amPDX-KTM
37h 45m2 stops
Qatar Airways Logo
6:00 pm - 8:50 pmKTM-PDX
39h 35m2 stops
$1,295Qatar Airways
Find Deal
Wed, Oct 15 - Wed, Oct 22
Qatar Airways Logo
5:55 pm - 10:15 amPDX-KTM
51h 35m2 stops
Qatar Airways Logo
11:30 am - 8:50 pmKTM-PDX
46h 05m2 stops
$1,310Qatar Airways
Find Deal
Sat, Nov 1 - Sun, Nov 30
Multiple Airlines Logo
5:55 pm - 11:10 amPDX-KTM
52h 30m2 stops
Multiple Airlines Logo
12:35 pm - 9:31 pmKTM-PDX
46h 41m2 stops
$1,345Multiple Airlines
Find Deal
Tue, Nov 4 - Wed, Jan 21
Qatar Airways Logo
10:40 am - 5:30 pmPDX-KTM
41h 05m2 stops
Qatar Airways Logo
5:40 pm - 4:28 pmKTM-PDX
36h 33m2 stops
$1,355Qatar Airways
Find Deal
Wed, Nov 5 - Fri, Jan 23
Qatar Airways Logo
10:40 am - 5:30 pmPDX-KTM
41h 05m2 stops
Qatar Airways Logo
5:40 pm - 4:28 pmKTM-PDX
36h 33m2 stops
$1,365Qatar Airways
Find Deal
Tue, Nov 4 - Tue, Jan 20
Cathay Pacific Logo
5:55 pm - 10:00 pmPDX-KTM
38h 20m2 stops
Cathay Pacific Logo
11:15 pm - 4:28 pmKTM-PDX
30h 58m2 stops
$1,553Cathay Pacific
Find Deal
Sun, Nov 2 - Mon, Jan 19
Cathay Pacific Logo
5:41 pm - 10:00 pmPDX-KTM
38h 34m2 stops
Cathay Pacific Logo
11:15 pm - 1:19 pmKTM-PDX
27h 49m2 stops
$1,583Cathay Pacific
Find Deal
Wed, Nov 5 - Tue, Jan 20
Cathay Pacific Logo
2:50 pm - 10:00 pmPDX-KTM
41h 25m2 stops
Cathay Pacific Logo
11:15 pm - 4:28 pmKTM-PDX
30h 58m2 stops
$1,673Cathay Pacific
Find Deal

Everything you should know

Top airlines
Qatar Airways
Cheapest • from $1,288 (round-trip)
Singapore Airlines
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 16% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$1,276
Typical prices: $1,202-1430
Multiple Airlines
Wed 11/5Wed 1/21
PDX - KTM • 2 stops
Cheapest one-way
$739
Typical prices: $756-812
Multiple Airlines
Fri 9/19
PDX - KTM • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kathmandu!
Booking Insights

KAYAK's insights & trends for Portland to Kathmandu flights

Get data-powered insights and trends into flights from Portland to Kathmandu to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Portland to Kathmandu?

What’s the cheapest day of the week to fly from Portland to Kathmandu?

The average price of all round-trip flights from Portland to Kathmandu clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Portland to Kathmandu, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Kathmandu, Monday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Kathmandu, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Kathmandu is January, where tickets cost $1,190 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $1,799 and $1,703 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Kathmandu, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Kathmandu, you should book around 4 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$739
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Portland to Kathmandu

When to book flights from Portland to Kathmandu

Are your dates flexible? Find out the best times to travel from Portland to Kathmandu based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Kathmandu

  • Where can I spend the night at Kathmandu airport (KTM)?

    This airport is open 24h, hence it is safe. However, the airport doesn’t have a specific place designed for passengers to sleep. You can go to terminals 1 and 2, where you will be able to find a corner and seat that you can sleep on as much as they are not comfortable enough. For a comfortable sleep, carry an extra travel blanket.

  • Are there onsite hotels at Portland airport?

    There are many onsite hotels that you can consider booking when you want. For instance, you can book your stay with Radisson Hotel Portland Airport. It offers free shuttle services, comfortable beds, and free breakfast. You can also consider staying at the Hampton Inn Portland- Airport, Sheraton Portland Airport Hotel, and Country Inn & Suites by Radisson. These are some of the top-rated hotels near Portland airport.

  • What amenities does Kathmandu airport offer nursing mothers?

    When traveling through Kathmandu airport with an infant, there are breastfeeding rooms at both arrival and departure hall areas. These rooms are specially made for nursing mothers to breastfeed, change diapers, and pump milk. They are private and provide more comfort. They are also equipped with cleaning electronics and seats.

  • How can I fly from Portland to Kathmandu?

    From Portland airport to Kathmandu airport, you can use several airlines, including Singapore Airlines or Qatar Airways. These airlines offer connecting services, usually with layovers at SEA or DOH.

  • What is the cheapest flight from Portland to Kathmandu?

    In the last 3 days, the lowest price for a flight from Portland to Kathmandu was $739 for a one-way ticket and $1,276 for a round-trip.

  • Do I need a passport to fly between Portland and Kathmandu?

    A passport is required to fly from Portland to Kathmandu.

  • Which aircraft models fly most regularly from Portland to Kathmandu?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Kathmandu?

    oneworld is the only airline alliance operating flights between Portland and Kathmandu.

  • What is the most popular layover when flying to Kathmandu from Portland?

    Doha is the most popular layover city among KAYAK users traveling from Portland to Kathmandu.

  • Which is the best airline for flights from Portland to Kathmandu, Singapore Airlines or Cathay Pacific?

    The two airlines most popular with KAYAK users for flights from Portland to Kathmandu are Singapore Airlines and Cathay Pacific. With an average price for the route of $1,316 and an overall rating of 8.1, Singapore Airlines is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,213 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Portland to Kathmandu?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Kathmandu.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Kathmandu?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kathmandu from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Kathmandu?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kathmandu with an airline and back to Portland with another airline. Booking your flights between Portland and KTM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Kathmandu?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kathmandu from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Portland to Kathmandu

  • It is important to arrive at the airport 2h before your departure time. This is because the Portland airport (PDX) is usually crowded, and you will need to go through the security check-in points, get your boarding pass, and head to your boarding gate on time. Arriving at the airport this early will give you enough time to do all this without hassles.
  • For travelers seeking a location to keep their cars when flying out, Portland International Airport offers a number of parking spaces. There is a long-term parking lot near terminal 1 on the third level that you can utilize or the one down in the basement. Additionally, they offer parking for regular drivers who want to stop for a few hours or who are waiting to pick up passengers. The new garage at the gate is next to this parking lot on the ground floor.
  • Before boarding your flight to Portland, you can decide to grab something to eat at the restaurants and cafes at the arrival and departure hall. They also have a vending machine that is available for all passengers who want to get something quick instead of going to the restaurants.
  • Due to the long flight from Portland to Kathmandu, the airlines operating along this route offer exceptional services to passengers. For instance, Singapore Airlines offer meals and beverages on board. They also have entertainment like games which you can play with other passengers. Alternatively, you can watch movies from the seat TV if you are looking for a distraction. They also have a kid's channel to keep the young travelers occupied.
  • You can consider flying with Singapore Airlines or Qatar Airways if you want to make use of the lounge amenities at Kathmandu airport. Both airlines have world-class lounges with comfortable couches, offer good food and beverages, and WiFi at the airport.

Reviews of the top 3 airlines serving from Portland to Kathmandu

 
See real verified KAYAK customer reviews for airlines flying from Portland to Kathmandu. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Kathmandu? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1365 reviews
8.0Comfort
7.7Food
8.6Crew
8.2Boarding
8.0Entertainment
Airline reviews

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

10.0 ExcellentAnonymous, Jul 2025SFO - SIN
Read more Singapore Airlines reviews

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

they are deley vancouver to hankong 3 hour after honkong 20 hour stay there honkong not visa approved and they cant help to visa so we are stay in airport 20 hour even honkong staf very bad person they cant do for us 6 hour we arround they said you there you go there waste time next time i dont want to go cathay stay in honkong

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

The economy seats are incredibly tight. A large percent of the traveling public will not fit. I will not fly Cathay again because of this. You are literally squeezing passengers for profit. The CEO should fly some economy flights.

Entertainment for kids was good. Good was terrible, needs lots of work.

If I had blood clots, that window seat would've killed me for certain.

The food and service was great. You have to pay a lot for in flight Internet though which is lame.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Worst experience I have ever had with any airline in over 25 years.

Everything was fine and I have no complaints or things to note.

The economy seats are much indeed roomier. Meals needs improvement.

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

The flight was smooth Thank God but the delays and changing gates for 3-4 times made me so tired of walking back and forth with heavy bags I thought I was going to pass out with heavy headaches but Thank God finally found the final gate and home safe. These delays happen anytime for important reasons so just be patient when you come across these situations.

Everything you need to know for your flight from Portland to Kathmandu

Information on your arrival and departure airports

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