$554+ Cheap flights from Kathmandu (KTM) to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEA
Oct 24 — Oct 311
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Kathmandu to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Kathmandu to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Kathmandu to SeattleExplore the most affordable flight options available from Kathmandu to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Kathmandu to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This Korean Air deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:20 pm -
1 stop28h 05m
Thu 10/2212:50 pm -
1 stop39h 40m
Deal found 9/20![Korean Air logo]()
$1,208
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:20 pm -
1 stop28h 05m
Sun 10/2512:00 pm -
1 stop40h 15m
Deal found 9/22![Korean Air logo]()
$1,209
This Korean Air deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:25 pm -
1 stop27h 25m
Sun 11/1511:00 am -
1 stop40h 15m
Deal found 9/21![Korean Air logo]()
$1,283
This Priceline deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:10 pm -
2 stops27h 30m
Fri 10/239:36 pm -
3 stops44h 14m
Deal found 9/19![Multiple Airlines logo]()
$1,316
This Justfly.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/182:40 pm -
2 stops34h 00m
Fri 10/236:39 am -
3 stops35h 11m
Deal found 9/22![Multiple Airlines logo]()
$1,361
This oojo deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:55 pm -
1 stop45h 55m
Fri 11/138:40 am -
1 stop23h 25m
Deal found 9/22![Singapore Airlines logo]()
$1,371
This oojo deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/112:40 pm -
2 stops34h 00m
Fri 10/239:36 pm -
3 stops44h 14m
Deal found 9/19![Air India logo]()
$1,374
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:55 pm -
1 stop21h 55m
Mon 11/163:40 pm -
2 stops31h 25m
Deal found 9/21![Multiple Airlines logo]()
$1,375
This Qatar Airways deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:30 pm -
1 stop31h 40m
Sun 10/254:50 pm -
1 stop34h 50m
Deal found 9/20![Multiple Airlines logo]()
$1,376
This Qatar Airways deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:30 pm -
1 stop31h 40m
Sat 10/244:25 pm -
1 stop35h 15m
Deal found 9/22![Multiple Airlines logo]()
$1,379
Best flights from Kathmandu to SeattleDiscover carefully curated flight deals from Kathmandu to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Kathmandu to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This Korean Air deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:20 pm -
1 stop28h 05m
Thu 10/2212:50 pm -
1 stop39h 40m
Deal found 9/19![Korean Air logo]()
$1,208
This Qatar Airways deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:30 pm -
1 stop31h 40m
Sun 10/254:50 pm -
1 stop34h 50m
Deal found 9/20![Multiple Airlines logo]()
$1,376
This Qatar Airways deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 pm -
1 stop30h 10m
Tue 10/274:50 pm -
1 stop28h 15m
Deal found 9/22![Qatar Airways logo]()
$1,414
This Korean Air deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:20 pm -
1 stop28h 05m
Thu 10/2212:10 am -
1 stop28h 20m
Deal found 9/20![Korean Air logo]()
$1,208
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:20 pm -
1 stop28h 05m
Sun 10/2512:10 am -
1 stop28h 05m
Deal found 9/22![Korean Air logo]()
$1,209
This Qatar Airways deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:30 pm -
1 stop31h 40m
Fri 10/234:25 pm -
1 stop28h 40m
Deal found 9/19![Multiple Airlines logo]()
$1,391
This Qatar Airways deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:40 pm -
2 stops43h 47m
Sat 11/143:50 pm -
1 stop35h 55m
Deal found 9/21![Qatar Airways logo]()
$1,437
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:20 pm -
1 stop28h 05m
Thu 10/2212:50 pm -
1 stop39h 40m
Deal found 9/22![Korean Air logo]()
$1,209
This Qatar Airways deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:40 pm -
2 stops38h 00m
Sun 11/153:50 pm -
1 stop35h 55m
Deal found 9/21![Qatar Airways logo]()
$1,437
This Qatar Airways deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:00 pm -
2 stops40h 48m
Tue 10/274:50 pm -
1 stop28h 15m
Deal found 9/22![Qatar Airways logo]()
$1,442
This Qatar Airways deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:30 pm -
2 stops42h 18m
Mon 10/264:50 pm -
1 stop26h 45m
Deal found 9/22![Qatar Airways logo]()
$1,444
Last-minute flights from Kathmandu to SeattleDiscover last-minute flight deals from Kathmandu to Seattle. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Kathmandu to Seattle. Data last updated September 24, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:20 pm -
1 stop28h 05m
Thu 10/2212:50 pm -
1 stop39h 40m
Deal found 9/20![Korean Air logo]()
$1,208
This Priceline deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:10 pm -
2 stops27h 30m
Fri 10/239:36 pm -
3 stops44h 14m
Deal found 9/19![Multiple Airlines logo]()
$1,316
This oojo deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/112:40 pm -
2 stops34h 00m
Fri 10/239:36 pm -
3 stops44h 14m
Deal found 9/19![Air India logo]()
$1,374
This Qatar Airways deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:30 pm -
1 stop31h 40m
Fri 10/234:25 pm -
1 stop28h 40m
Deal found 9/19![Multiple Airlines logo]()
$1,391
This FlightHub deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:30 pm -
1 stop31h 40m
Sat 10/244:25 pm -
1 stop27h 10m
Deal found 9/22![Qatar Airways logo]()
$1,393
This Justfly.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/182:40 pm -
2 stops34h 00m
Fri 10/236:39 am -
3 stops35h 11m
Deal found 9/22![Multiple Airlines logo]()
$1,361
This Qatar Airways deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:30 pm -
1 stop31h 40m
Sun 10/254:50 pm -
1 stop34h 50m
Deal found 9/20![Multiple Airlines logo]()
$1,376
This Qatar Airways deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:30 pm -
1 stop31h 40m
Sat 10/244:25 pm -
1 stop35h 15m
Deal found 9/22![Multiple Airlines logo]()
$1,379
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:20 pm -
1 stop28h 05m
Sun 10/2512:00 pm -
1 stop40h 15m
Deal found 9/22![Korean Air logo]()
$1,209
One-way flights from Kathmandu to SeattleSearch for one-way flight options from Kathmandu to Seattle. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Kathmandu to Seattle. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Expedia deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:50 pm -
1 stop22h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Singapore Airlines logo]()
$554
This FlightHub deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:55 pm -
1 stop21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Singapore Airlines logo]()
$595
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:50 pm -
2 stops48h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$600
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:55 pm -
1 stop21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Singapore Airlines logo]()
$602
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:55 pm -
1 stop21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Singapore Airlines logo]()
$604
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:05 pm -
2 stops55h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$607
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:05 pm -
2 stops31h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$612
This Justfly.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:05 am -
2 stops47h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$699
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1811:30 pm -
2 stops46h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$706
This FlightHub deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:40 pm -
2 stops29h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$707
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:45 am -
2 stops34h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$718
Find flight deals from Kathmandu to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Kathmandu (KTM) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,208 (Korean Air) |
One-way from | $554 (Expedia) |
Popular in | June |
Cheapest in | September |
Average price | $1,196 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kathmandu to Seattle 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, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
Use the filters below to find and compare flights from Kathmandu to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Wed 11/11
10:05 am-7:54 pm
2 stops47h 34m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$699
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Sun 10/18
11:30 pm-9:00 am
2 stops46h 15m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$706
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Mon 11/2
9:40 pm-12:56 pm
2 stops29h 01m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$707
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Fri 10/16
11:45 am-9:00 am
2 stops34h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$718
Quickest round-trip
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Thu 11/5
7:35 am-7:54 pm
2 stops26h 04m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$739
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Fri 10/16
5:30 pm-4:20 pm
3 stops35h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$752
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Thu 10/15
5:30 pm-4:20 pm
3 stops35h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$752
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Wed 11/4
7:15 am-9:59 pm
3 stops52h 29m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:30 pm
Nonstop0h 00m
$762
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Sat 10/10
7:20 pm-10:40 am
1 stop28h 05m
Seattle/Tacoma Intl
Thu 10/22
12:50 pm-5:15 pm
1 stop39h 40m
$1,208
KathmanduSeattle
KTM Kathmandu Tribhuvan - SEA Seattle/Tacoma Intl
KTMSEA
Kathmandu Tribhuvan
Sat 10/10
7:20 pm-10:40 am
1 stop28h 05m
Seattle/Tacoma Intl
Thu 10/22
12:10 am-5:15 pm
1 stop28h 20m
$1,208
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Kathmandu to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kathmandu to Seattle in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Kathmandu-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kathmandu-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kathmandu-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kathmandu-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kathmandu-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Kathmandu to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Kathmandu with our price prediction graph.
KTM-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated September 24, 2026.
Peruse reviews from past customers who have flown with Singapore Airlines from Kathmandu to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Entertainment
8.1
Boarding
8.3
Overall
8.2
Comfort
8.0
Food
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Sep 2026
SIN - SEA
Crew
8.6
Entertainment
8.1
Boarding
8.3
Overall
8.2
Comfort
8.0
Food
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Sep 2026
SIN - SEA
Related info for your journey
Find useful and relevant information for your journey from Kathmandu to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Poulsbo
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Seattle flight routes
Alternative routes for Kathmandu to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Kathmandu to Seattle by cabin class
Find flights from Kathmandu to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kathmandu and Seattle flights
Browse other Kathmandu and Seattle flight options. Last updated on September 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.
Top airline flying from Kathmandu to Seattle
Discover the top airline that operate flights from Kathmandu to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,006 | Average$1,259 | FlexibilityNo cancel fee | On-time81% |