Asuncion

$478+ Cheap flights from Washington to Asuncion (ASU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ASU
Jan 17 — Jan 241
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Cheap flight deals from Washington to Asuncion

Cheapest flights from Washington to Asuncion
Explore the most affordable flight options available from Washington to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Expedia deal was found by Cheapflights users on 12/17. 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.
Mon 12/229:20 pmSEA - ASU
2 stops50h 55mMultiple Airlines
Mon 12/2911:05 amASU - SEA
2 stops32h 10mMultiple Airlines
Deal found 12/17$1,840

Find flight deals from Washington to Asuncion

Keep the following information in mind while searching for Washington to Asuncion flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$907
(Sembo)

One-way from

$478
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$854
Provider with most accurate pricing for Seattle/Tacoma Intl-Asuncion Silvio Pettirossi flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Asuncion Silvio Pettirossi flights.
From Washington to Asuncion Silvio Pettirossi
One-way flight from Washington to Asuncion Silvio Pettirossi
Highest demand for flights based on searches. 16% potential increase in price ($221 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Asuncion 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 December 18, 2025.
Use the filters below to find and compare flights from Washington to Asuncion that are best for you.

Fly from

Washington

Fly to

Asuncion

Route

Depart

Return

Price

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 5/4

11:15 pm-6:05 am

2 stops26h 50m

Asuncion Silvio Pettirossi

Fri 5/8

8:10 am-12:22 am

2 stops20h 12m

$994

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 5/4

6:45 am-5:24 am

2 stops18h 39m

Asuncion Silvio Pettirossi

Fri 5/8

6:33 am-10:49 pm

2 stops44h 16m

$1,223

PortlandAsuncion

PDX - ASU

PDXASU

Portland

Mon 1/5

9:45 pm-6:25 am

2 stops27h 40m

Asuncion Silvio Pettirossi

Fri 1/30

8:25 am-10:35 pm

2 stops19h 10m

$1,555

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 1/26

10:00 pm-10:25 am

3 stops31h 25m

Asuncion Silvio Pettirossi

Wed 2/4

1:25 pm-2:31 pm

3 stops30h 06m

$1,571

PortlandAsuncion

PDX - ASU

PDXASU

Portland

Fri 3/6

6:56 am-12:25 pm

2 stops24h 29m

Asuncion Silvio Pettirossi

Sun 3/8

11:05 am-12:10 pm

2 stops29h 05m

$1,571

PortlandAsuncion

PDX - ASU

PDXASU

Portland

Sat 1/31

9:45 pm-6:15 am

2 stops51h 30m

Asuncion Silvio Pettirossi

Sat 2/7

8:20 am-7:12 pm

2 stops39h 52m

$1,607

PortlandAsuncion

PDX - ASU

PDXASU

Portland

Thu 5/7

6:30 am-6:05 am

2 stops19h 35m

Asuncion Silvio Pettirossi

Sun 5/10

11:05 am-12:13 pm

2 stops29h 08m

$1,655

PortlandAsuncion

PDX - ASU

PDXASU

Portland

Sat 1/31

1:24 pm-12:15 am

3 stops29h 51m

Asuncion Silvio Pettirossi

Sat 2/7

6:42 am-12:18 pm

2 stops34h 36m

$1,680

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 1/26

12:57 pm-12:14 am

2 stops30h 17m

Asuncion Silvio Pettirossi

Wed 2/4

6:42 am-10:43 pm

3 stops45h 01m

$1,695

PortlandAsuncion

PDX - ASU

PDXASU

Portland

Fri 3/6

1:00 pm-12:15 am

3 stops30h 15m

Asuncion Silvio Pettirossi

Sun 3/8

6:42 am-10:11 pm

2 stops44h 29m

$1,817

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 18 results
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Best time to book a flight from Washington to Asuncion

Have a flexible travel schedule? Discover the best time to fly to Asuncion from Washington with our price prediction graph.
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 Washington to Asuncion

What is the cheapest time of day to fly from WA to ASU?

Find hourly flight availability from Washington to Asuncion. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from State of Washington to Asuncion is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 21% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Washington to Asuncion. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Asuncion from Washington?

    Asuncion Silvio Pettirossi (ASU) is the airport you will fly into if you book a flight from Washington to Asuncion. It is only a 7.8 mi journey from Silvio Pettirossi (ASU) to Asuncion’s city center.

  • How long is the flight from State of Washington to Asuncion?

    Airlines like LATAM Airlines and United Airlines fly from State of Washington to Asuncion in about 18h 39m. The time it takes to get you to your destination can typically vary by up to 8h 11m. State of Washington and Asuncion are separated by a distance of 6426 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from State of Washington to Asuncion?

  • Can I find deals for flights from Washington to Asuncion that include hotel bookings?

    Yes. In addition to deals on Washington to Asuncion flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Asuncion?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Asuncion.

  • Can I find deals for business class flights from Washington to Asuncion?

    Yes. Cheapflights offers flight deals from Washington to Asuncion by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Washington to Asuncion

Discover the top airline that operate flights from Washington to Asuncion. 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 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$751Average$1,020FlexibilityNo cancel feeOn-time81%

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