Asuncion

$757+ Cheap flights from Seattle (SEA) 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ASU
Apr 12 — Apr 191
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Cheap flight deals from Seattle to Asuncion

Cheapest flights from Seattle to Asuncion
Explore the most affordable flight options available from Seattle to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 13, 2026.

This LATAM Airlines deal was found by Cheapflights users on 3/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:30 am
SEA
-
ASU
2 stops28h 10m
LATAM Airlines
Wed 10/288:10 am
ASU
-
SEA
2 stops30h 45m
LATAM Airlines
Deal found 3/9$971
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:30 am
SEA
-
ASU
2 stops37h 35m
United Airlines
Sun 5/36:33 am
ASU
-
SEA
2 stops41h 11m
United Airlines
Deal found 3/12$974
This LATAM Airlines deal was found by Cheapflights users on 3/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 am
SEA
-
ASU
2 stops20h 05m
Multiple Airlines
Thu 4/308:10 am
ASU
-
SEA
2 stops32h 04m
Multiple Airlines
Deal found 3/9$986
This Travelocity deal was found by Cheapflights users on 3/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:00 am
SEA
-
ASU
2 stops42h 05m
LATAM Airlines
Tue 4/148:10 am
ASU
-
SEA
2 stops29h 50m
LATAM Airlines
Deal found 3/10$1,001
This Copa Airlines deal was found by Cheapflights users on 3/8. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:05 pm
SEA
-
ASU
2 stops27h 43m
Copa Airlines
Thu 8/203:58 am
ASU
-
SEA
2 stops21h 58m
Copa Airlines
Deal found 3/8$1,024
This Expedia deal was found by Cheapflights users on 3/12. 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.
Fri 8/79:15 pm
SEA
-
ASU
2 stops28h 50m
Multiple Airlines
Sat 8/228:10 am
ASU
-
SEA
2 stops19h 54m
Multiple Airlines
Deal found 3/12$1,041
This Copa Airlines deal was found by Cheapflights users on 3/13. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:51 pm
SEA
-
ASU
2 stops25h 12m
Copa Airlines
Thu 9/106:33 am
ASU
-
SEA
2 stops19h 23m
Copa Airlines
Deal found 3/13$1,074
This KAYAK deal was found by Cheapflights users on 3/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:25 am
SEA
-
ASU
2 stops29h 15m
LATAM Airlines
Sat 8/2211:10 am
ASU
-
SEA
2 stops31h 13m
LATAM Airlines
Deal found 3/8$1,168
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:35 pm
SEA
-
ASU
2 stops20h 30m
United Airlines
Fri 5/16:33 am
ASU
-
SEA
3 stops36h 03m
United Airlines
Deal found 3/10$1,177
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:08 pm
SEA
-
ASU
2 stops31h 57m
United Airlines
Thu 4/306:33 am
ASU
-
SEA
3 stops36h 03m
United Airlines
Deal found 3/9$1,181

Find flight deals from Seattle to Asuncion

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Asuncion (ASU). 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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$971
(FlightHub)

One-way from

$757
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$978
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 Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
One-way flight from Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
Highest demand for flights based on searches. 13% potential increase in price ($159 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 March 13, 2026.
Use the filters below to find and compare flights from Seattle to Asuncion that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 4/26

11:35 pm-12:05 am

2 stops44h 30m

Asuncion Silvio Pettirossi

Sun 5/3

6:33 am-2:36 pm

3 stops60h 03m

$995

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Tue 4/7

8:00 am-6:05 am

2 stops42h 05m

Asuncion Silvio Pettirossi

Tue 4/14

8:10 am-10:00 am

2 stops29h 50m

$1,001

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 8/31

6:51 pm-5:31 am

2 stops30h 40m

Asuncion Silvio Pettirossi

Wed 9/9

1:47 am-9:56 pm

2 stops24h 09m

$1,024

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Fri 4/24

11:35 pm-12:05 am

2 stops20h 30m

Asuncion Silvio Pettirossi

Fri 5/1

6:33 am-2:36 pm

3 stops36h 03m

$1,177

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Fri 4/10

9:15 pm-6:05 am

2 stops28h 50m

Asuncion Silvio Pettirossi

Fri 4/17

8:10 am-11:51 pm

2 stops19h 41m

$1,327
Quickest round-trip

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Wed 4/1

7:15 am-10:10 am

2 stops22h 55m

Asuncion Silvio Pettirossi

Wed 5/27

6:30 pm-2:29 pm

2 stops23h 59m

$1,367

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Tue 4/7

10:48 pm-5:40 pm

3 stops62h 52m

Asuncion Silvio Pettirossi

Tue 4/14

8:10 am-12:14 pm

2 stops32h 04m

$1,406

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Wed 4/1

11:00 pm-4:40 am

3 stops25h 40m

Asuncion Silvio Pettirossi

Wed 5/27

8:25 am-2:20 pm

3 stops33h 55m

$1,550

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Thu 6/18

11:49 pm-12:08 am

2 stops20h 19m

Asuncion Silvio Pettirossi

Sat 7/11

6:33 am-7:55 am

2 stops29h 22m

$1,574

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 8/31

12:02 pm-4:40 am

3 stops36h 38m

Asuncion Silvio Pettirossi

Thu 9/10

12:05 pm-6:32 pm

3 stops34h 27m

$1,578

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Asuncion

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 Asuncion in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Asuncion flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Asuncion flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Asuncion flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Asuncion 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-Asuncion 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 Asuncion

Have a flexible travel schedule? Discover the best time to fly to Asuncion from Seattle 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.

Reviews of airlines servicing Asuncion

Get insights into the airlines that provide service to Asuncion. 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 Asuncion. Reviews last updated March 13, 2026.
Peruse reviews from past customers who have flown with LATAM Airlines from Seattle to Asuncion 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

8.0

Overall

7.4

Food

6.7

Comfort

7.3

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Crew

8.0

Overall

7.4

Food

6.7

Comfort

7.3

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Related info for your journey

Find useful and relevant information for your journey from Seattle to Asuncion. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Seattle to Asuncion?

    A quick flight from Seattle to Asuncion can take about 30h 40m. United Airlines provides one of the quickest options available for as low as $1,024. The distance from Seattle to Asuncion is about 6426 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to Asuncion round-trip?

    LATAM Airlines, at $751, was found to be the cheapest airline from Seattle to Asuncion.. LATAM Airlines is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Asuncion

Discover the top airline that operate flights from Seattle 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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$751Average$978FlexibilityNo cancel feeOn-time81%

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