$513+ Cheap flights from Seattle (SEA) to Kathmandu (KTM)
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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KTM
Oct 25 — Nov 11
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Kathmandu 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 Seattle to Kathmandu
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Cheapest flights from Seattle to KathmanduExplore the most affordable flight options available from Seattle to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2026.
Explore the most affordable flight options available from Seattle to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2026.
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:36 pm -
3 stops39h 44m
Thu 10/299:40 pm -
2 stops28h 06m
Deal found 9/22![Multiple Airlines logo]()
$1,085
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:01 pm -
2 stops31h 24m
Tue 10/139:10 pm -
2 stops29h 51m
Deal found 9/20![Multiple Airlines logo]()
$1,087
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:50 pm -
1 stop28h 15m
Mon 11/95:40 pm -
1 stop31h 45m
Deal found 9/23![Qatar Airways logo]()
$1,089
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:25 pm -
1 stop36h 35m
Tue 10/137:00 pm -
1 stop30h 10m
Deal found 9/20![Qatar Airways logo]()
$1,092
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.
Sun 11/83:50 pm -
1 stop35h 55m
Wed 2/175:40 pm -
1 stop31h 45m
Deal found 9/22![Qatar Airways logo]()
$1,101
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 11/83:50 pm -
1 stop35h 55m
Wed 2/175:40 pm -
2 stops39h 01m
Deal found 9/22![Multiple Airlines logo]()
$1,116
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:50 pm -
1 stop35h 55m
Mon 2/85:40 pm -
1 stop31h 45m
Deal found 9/20![Qatar Airways logo]()
$1,162
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:50 pm -
1 stop35h 55m
Mon 2/85:40 pm -
2 stops41h 31m
Deal found 9/20![Multiple Airlines logo]()
$1,177
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.
Wed 10/710:59 pm -
2 stops32h 26m
Sun 10/259:40 pm -
2 stops33h 36m
Deal found 9/22![Multiple Airlines logo]()
$1,180
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:36 pm -
3 stops38h 44m
Mon 11/165:10 pm -
2 stops35h 19m
Deal found 9/21![Multiple Airlines logo]()
$1,202
This FlightHub deal was found by Cheapflights users on 9/24. 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 11/303:50 pm -
1 stop35h 55m
Sun 12/205:40 pm -
1 stop31h 45m
Deal found 9/24![Qatar Airways logo]()
$1,208
Best flights from Seattle to KathmanduDiscover carefully curated flight deals from Seattle to Kathmandu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
Discover carefully curated flight deals from Seattle to Kathmandu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:05 pm -
1 stop26h 30m
Sun 11/2212:45 pm -
1 stop42h 10m
Deal found 9/22![Turkish Airlines logo]()
$1,235
This Qatar Airways deal was found by Cheapflights users on 9/24. 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.
Sat 11/78:15 am -
2 stops43h 30m
Tue 11/249:35 am -
1 stop39h 50m
Deal found 9/24![Qatar Airways logo]()
$1,407
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:05 pm -
1 stop25h 30m
Tue 11/2412:45 pm -
1 stop42h 10m
Deal found 9/21![Turkish Airlines logo]()
$1,295
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:18 am -
2 stops37h 47m
Fri 11/2011:05 am -
1 stop38h 20m
Deal found 9/23![Qatar Airways logo]()
$1,459
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.
Wed 11/43:50 pm -
1 stop35h 55m
Thu 11/269:35 am -
1 stop39h 50m
Deal found 9/21![Qatar Airways logo]()
$1,499
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:05 pm -
1 stop25h 30m
Sun 11/2212:45 pm -
1 stop42h 10m
Deal found 9/21![Turkish Airlines logo]()
$1,599
This Qatar Airways deal was found by Cheapflights users on 9/24. 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.
Sat 11/143:50 pm -
1 stop35h 55m
Wed 12/25:40 pm -
1 stop31h 45m
Deal found 9/24![Qatar Airways logo]()
$1,520
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:16 pm -
2 stops32h 19m
Thu 11/2612:45 pm -
1 stop42h 10m
Deal found 9/21![Turkish Airlines logo]()
$1,641
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.
Wed 11/49:23 am -
2 stops42h 22m
Tue 11/249:35 am -
1 stop39h 50m
Deal found 9/21![Qatar Airways logo]()
$1,634
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.
Thu 11/511:10 pm -
2 stops52h 35m
Thu 11/269:35 am -
1 stop39h 50m
Deal found 9/21![Qatar Airways logo]()
$1,640
This Qatar Airways deal was found by Cheapflights users on 9/24. 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 10/309:36 pm -
2 stops47h 29m
Sat 11/219:35 am -
1 stop39h 50m
Deal found 9/24![Qatar Airways logo]()
$1,642
Last-minute flights from Seattle to KathmanduDiscover last-minute flight deals from Seattle to Kathmandu. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Kathmandu. Data last updated September 25, 2026 and is based on user searches.
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:01 pm -
2 stops31h 24m
Tue 10/139:10 pm -
2 stops29h 51m
Deal found 9/20![Multiple Airlines logo]()
$1,087
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:25 pm -
1 stop36h 35m
Tue 10/137:00 pm -
1 stop30h 10m
Deal found 9/20![Qatar Airways logo]()
$1,092
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.
Wed 10/710:59 pm -
2 stops32h 26m
Sun 10/259:40 pm -
2 stops33h 36m
Deal found 9/22![Multiple Airlines logo]()
$1,180
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:59 pm -
2 stops32h 26m
Wed 10/149:10 pm -
2 stops29h 51m
Deal found 9/20![Multiple Airlines logo]()
$1,217
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:36 pm -
3 stops39h 44m
Thu 10/299:40 pm -
2 stops28h 06m
Deal found 9/22![Multiple Airlines logo]()
$1,085
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:36 pm -
3 stops38h 44m
Mon 11/165:10 pm -
2 stops35h 19m
Deal found 9/21![Multiple Airlines logo]()
$1,202
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:50 pm -
1 stop35h 55m
Sat 11/219:35 am -
1 stop39h 50m
Deal found 9/23![Qatar Airways logo]()
$1,218
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:50 pm -
1 stop28h 15m
Mon 11/95:40 pm -
1 stop31h 45m
Deal found 9/23![Qatar Airways logo]()
$1,089
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:50 pm -
1 stop28h 15m
Sat 11/219:35 am -
1 stop39h 50m
Deal found 9/23![Qatar Airways logo]()
$1,216
One-way flights from Seattle to KathmanduSearch for one-way flight options from Seattle to Kathmandu. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
Search for one-way flight options from Seattle to Kathmandu. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
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.
Thu 10/226:39 am -
3 stops28h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$513
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.
Thu 10/296:39 am -
3 stops35h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$518
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.
Fri 11/68:33 pm -
3 stops46h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$547
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:36 pm -
2 stops37h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Air India logo]()
$591
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.
Wed 11/48:31 pm -
3 stops44h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$603
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:40 am -
2 stops33h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$604
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.
Wed 10/288:36 pm -
3 stops52h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$606
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.
Tue 10/2711:54 am -
3 stops29h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$625
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.
Fri 10/29:45 am -
2 stops45h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$626
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:54 am -
3 stops39h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$633
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.
Mon 11/28:31 pm -
3 stops44h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$634
Find flight deals from Seattle to Kathmandu
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kathmandu (KTM). 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 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,010 (oojo) |
One-way from | $513 (FlightHub) |
Popular in | July |
Cheapest in | February |
Average price | $1,141 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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, Cheapflights users made 7,457,451 searches. Data last updated September 25, 2026.
Use the filters below to find and compare flights from Seattle to Kathmandu that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Tue 9/29
5:36 pm-8:10 pm
2 stops37h 49m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$591
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Mon 11/16
8:31 pm-6:35 am
3 stops44h 19m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$634
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Tue 11/17
8:40 am-9:40 pm
1 stop71h 15m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$654
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Wed 10/7
6:39 am-6:35 am
3 stops35h 11m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$699
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Thu 11/19
3:50 pm-10:55 pm
3 stops41h 20m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$714
Quickest round-trip
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Mon 9/28
4:25 pm-8:50 am
1 stop27h 40m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$740
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Thu 10/1
11:45 am-3:35 pm
3 stops39h 05m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$743
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Sat 11/14
11:45 pm-10:55 pm
3 stops33h 25m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$764
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Tue 10/27
11:25 am-11:30 am
2 stops35h 20m
Kathmandu Tribhuvan
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$801
SeattleKathmandu
SEA Seattle/Tacoma Intl - KTM Kathmandu Tribhuvan
SEAKTM
Seattle/Tacoma Intl
Mon 10/26
8:05 pm-11:20 am
1 stop26h 30m
Kathmandu Tribhuvan
Sun 11/22
12:45 pm-5:10 pm
1 stop42h 10m
$1,235
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to Kathmandu
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 Seattle to Kathmandu in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Kathmandu flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Kathmandu 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 Seattle-Kathmandu 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 Seattle to Kathmandu
Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Seattle with our price prediction graph.
SEA-KTM
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.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Kathmandu
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How far ahead should I book a flight from Seattle to Kathmandu?
Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Kathmandu. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Seattle to Kathmandu?
Currently, February is the cheapest month in which you can book a flight from Seattle to Kathmandu (average of $1,047). Flying from Seattle to Kathmandu in July is currently the most expensive (average of $1,521). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Kathmandu?
Airfare is below average for this route at the moment.
Seattle to Kathmandu flights typically cost between $1,036 and $1,519 in January.The cheapest round-trip price found within the last 5 days was $1,016 on Multiple Airlines (Jan 13-Feb 17).
What’s the top layover airport for flights from Seattle to Kathmandu?
Share of 1-stop round-trip flights from Seattle to Kathmandu chosen by Cheapflights users in the past 12 months, using the same layover each way.
Doha (DOH) – chosen by Cheapflights users on 71% of 1-stop itineraries from Seattle to Kathmandu on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Kathmandu?
Average round-trip fare for 1-stop flights from Seattle to Kathmandu, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $943.
What’s the fastest layover option from Seattle to Kathmandu?
Shortest average travel time for 1-stop one-way flights from Seattle to Kathmandu, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Istanbul (IST) have the shortest average one-way travel time for 1-stop routes: 26h 25m.
Which airport typically offers the quickest layover for flights from Seattle to Kathmandu?
Average layover duration for 1-stop one-way flights from Seattle to Kathmandu, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Doha (DOH) offer the fastest connection on this route, with an average layover time of 10h 07m.
Reviews of airlines servicing Kathmandu
Get insights into the airlines that provide service to Kathmandu. 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 Kathmandu. Reviews last updated September 25, 2026.
See what other customers who have flown with Singapore Airlines,Emirates, andCathay Pacific from Seattle to Kathmandu have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.1
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Entertainment
8.1
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Entertainment
8.1
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Entertainment
8.1
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Entertainment
8.1
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Entertainment
8.1
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Related info for your journey
Find useful and relevant information for your journey from Seattle to Kathmandu. 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 Kathmandu?
Book flights to Kathmandu if you plan to visit one of these locationsNagarkot
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Other flights to Kathmandu
Explore flights to Kathmandu departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.
Seattle and Kathmandu flights
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Top 5 airlines flying from Seattle to Kathmandu
Discover the top 5 airlines that operate flights from Seattle to Kathmandu. 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 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$812 | Average$1,166 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$903 | Average$1,332 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$944 | Average$1,249 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$979 | Average$1,430 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,166 | Average$1,750 | FlexibilityNo cancel fee | On-time75% |