Cheap Flights from Kathmandu to Seattle

Compare Kathmandu to Seattle flight deals

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Flight deals from Kathmandu to Seattle

Looking for a cheap last-minute deal or the best return flight from Kathmandu to Seattle? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Kathmandu to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kathmandu to Seattle flights are currently cheapest in March.

Alternative Kathmandu to Seattle routes

Looking for the cheapest, fastest or easiest route from Kathmandu to Seattle? You could fly into the following airports instead.

Kathmandu to Seattle: Flight information

The things to know before you go.
Cheapest flight foundRs162,433
Cheapest month to flyMarch

Finding cheap flights from Kathmandu to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Kathmandu to Seattle is Rs331,417. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Kathmandu to Seattle. But we found flights with one or more stops from Rs331,417.
As of January 2026, there are no flights flying from Kathmandu to Seattle.
The cheapest month to fly from Kathmandu to Seattle is usually February.
If you're flying from Kathmandu Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from Rs331,417.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to Seattle on Saturday, 7 February 2026.
No airlines currently offer direct flights between Kathmandu Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In January, the average temperature is usually around 3°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Air Canada offers the cheapest flight tickets to Seattle.

Flying from Tribhuvan International Airport (KTM) to Seattle: what you need to know

  • The timezone in Seattle is UTC-7. The city is 12 hours 48 minutes behind Kathmandu, where Tribhuvan International Airport is located.

  • Give yourself plenty of time to catch your KTM to Seattle flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • Longer lines at check-in and security are likely if you're jetting off during high season, so allow some extra wiggle room. A good rule of thumb for peak periods? Arrive up to four hours ahead for international flights and two hours for domestic departures.

  • We make it a breeze to book flight tickets from KTM to Seattle with a stopover. To see the options, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to see the sights of the city of your choice. Well-traveled stopover hubs include:

    • Istanbul Ataturk Airport (IST)

    • Changi International Airport (SIN)

    • Hamad International Airport (DOH)

  • KTM is around 3 kilometres from central Kathmandu. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 15 minutes or so to arrive, depending on traffic conditions.

  • Want a relaxed start to your journey? Stay near KTM. Whether you have an early flight from Tribhuvan International Airport to Seattle or want to avoid feeling rushed, these hotels are all about convenience:

How to find the cheapest flights from Tribhuvan International Airport (KTM) to Seattle

  • The lowest price we've found for a one-way Tribhuvan International Airport to Seattle flight is Rs162,433. The cheapest price for a return flight is Rs331,417. Bear in mind fares may change due to availability at the time of booking.

  • To pick up cheap flights from KTM to Seattle, book early. Airlines tend to offer lower prices when flights first go on sale.

  • The 'Whole month' search tool will show you the cheapest tickets from Tribhuvan International Airport to Seattle throughout the entire month. It's a good way to find a bargain if your travel dates are flexible.

  • Snapping up a cheap flight from KTM to Seattle is a breeze with Price Alerts. All you need to do is set up one of these automatic notifications and we'll get in touch as soon as a lower fare pops up.

  • Tailor your flights with filters. Pick your departure and arrival times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Tribhuvan International Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from central Seattle. If you're opting for a ride-share or a cab, the drive takes about 20 minutes.

  • Getting to the centre on public transport takes around 55 minutes.

  • Consider booking a hotel near SEA if you're coming in on a late flight from Tribhuvan International Airport to Seattle. Choose one of these accommodation options and make your arrival easier:

  • Hit the road running by picking up a Seattle-Tacoma International Airport rental car. Grab your wheels from Thrifty, Europcar or Budget and explore beyond Seattle's main sights.

  • Booking your vehicle from Seattle-Tacoma International Airport about one week in advance of your flight from KTM to Seattle can help you lock in the lowest rate.

Lake Union Sea Plane Base Airport (LKE)

  • Once your flight from Tribhuvan International Airport to Seattle has hit the tarmac, you can reach the city centre in about 10 minutes by car. Central Seattle is roughly 3 kilometres from Lake Union Sea Plane Base Airport (LKE).

  • The journey will take about 25 minutes on public transport.

  • Hang the 'Do not disturb' sign on your door and unwind at a hotel near LKE. Here are a few options where you can settle in after your KTM to Seattle flight:

Best time to go to Seattle

  • Visit Seattle in high season if you prefer a bustling atmosphere, but remember that prices are typically higher. Alternatively, book your flights from Tribhuvan International Airport to Seattle in the low season when prices are cheaper and it's less crowded.

  • Before booking a Tribhuvan International Airport to Seattle flight ticket, think about the type of weather you enjoy. August is the warmest month in Seattle, with temperatures ranging from 12ºC to 28ºC.

  • Look for cheap tickets from KTM to Seattle in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -1ºC and 11ºC on average.

More about Seattle

  • When it comes to looking for somewhere to lay your head, you'll find the best places to stay in Seattle right here. Check out these hotels as soon as you've booked your flight from Tribhuvan International Airport to Seattle:

  • All great holidays should include a little sightseeing. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are essential stops on your Seattle itinerary.

Explore more of United States

  • Portland is just one of the many cities in United States waiting to be explored after you've experienced Seattle. Around 241 kilometres away to the south, well-known attractions include Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 370 kilometres east of Seattle, Spokane is another essential stop in United States. Experience the best of this destination with a visit to Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.