$677+ Cheap flights from Klagenfurt (KLU) to Washington
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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — SEA
Mar 5 — Mar 121
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Klagenfurt to Washington 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 Klagenfurt to Washington
Cheapest
Best
Last-minute
Cheapest flights from Klagenfurt to WashingtonExplore the most affordable flight options available from Klagenfurt to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from Klagenfurt to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This Booking.com deal was found by Cheapflights users on 2/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/233:15 pm
KLU
- SEA
2 stops29h 55m
Lufthansa
Mon 3/302:10 pm
SEA
- KLU
2 stops14h 50m
Lufthansa
Deal found 2/1![Lufthansa logo]()
$677
This flugladen.de deal was found by Cheapflights users on 2/1. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:50 am
KLU
- SEA
3 stops48h 26m
Multiple Airlines
Mon 3/305:40 am
SEA
- KLU
3 stops23h 20m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$939
This Air Canada deal was found by Cheapflights users on 2/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:45 am
KLU
- SEA
2 stops24h 31m
Air Canada
Sun 11/18:10 am
SEA
- KLU
2 stops20h 50m
Air Canada
Deal found 2/2![Air Canada logo]()
$993
Best flights from Klagenfurt to WashingtonDiscover carefully curated flight deals from Klagenfurt to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from Klagenfurt to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This Booking.com deal was found by Cheapflights users on 2/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/233:15 pm
KLU
- SEA
2 stops29h 55m
Lufthansa
Mon 3/302:10 pm
SEA
- KLU
2 stops14h 50m
Lufthansa
Deal found 2/1![Lufthansa logo]()
$677
This flugladen.de deal was found by Cheapflights users on 2/1. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:50 am
KLU
- SEA
3 stops48h 26m
Multiple Airlines
Mon 3/305:40 am
SEA
- KLU
3 stops23h 20m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$939
Last-minute flights from Klagenfurt to WashingtonDiscover last-minute flight deals from Klagenfurt to Washington. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Klagenfurt to Washington. Data last updated February 3, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 2/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/233:15 pm
KLU
- SEA
2 stops29h 55m
Lufthansa
Mon 3/302:10 pm
SEA
- KLU
2 stops14h 50m
Lufthansa
Deal found 2/1![Lufthansa logo]()
$677
This flugladen.de deal was found by Cheapflights users on 2/1. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:50 am
KLU
- SEA
3 stops48h 26m
Multiple Airlines
Mon 3/305:40 am
SEA
- KLU
3 stops23h 20m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$939
Find flight deals from Klagenfurt to Washington
Keep the following information in mind while searching for Klagenfurt to Washington flight deals. Data was last updated February 3, 2026.
Round-trip from | $677 (Booking.com) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Klagenfurt to Washington 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 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Klagenfurt to Washington that are best for you.
Fly from
Klagenfurt
Fly to
Washington
Route
Depart
Return
Price
KlagenfurtSeattle
KLU - SEA
KLUSEA
Klagenfurt
Mon 3/23
3:15 pm-1:10 pm
2 stops29h 55m
Seattle/Tacoma Intl
Mon 3/30
2:10 pm-2:00 pm
2 stops14h 50m
$677
KlagenfurtSeattle
KLU - SEA
KLUSEA
Klagenfurt
Mon 3/23
5:50 am-10:16 pm
3 stops48h 26m
Seattle/Tacoma Intl
Mon 3/30
5:40 am-2:00 pm
3 stops23h 20m
$939
Best time to book a flight from Klagenfurt to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Klagenfurt with our price prediction graph.
KLU-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.
Cheapflights Insights
Everything you need to know about your flight from Klagenfurt to Washington
KLU-USWA
KLU-SEA
No data available for this route at this time. Please check back soon.