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Asuncion

$871+ Cheap flights from Seattle (SEA) to Asuncion (ASU)

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ASU
fev 27 — mar 61
sex 2/27
sex 3/6
1 adult, Economy
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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 janeiro 28, 2026.

This LATAM Airlines deal was found by Cheapflights users on 1/27. 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.
seg 10/268:40 am
SEA
-
ASU
2 stops21h 35m
LATAM Airlines
qui 10/296:30 pm
ASU
-
SEA
2 stops31h 28m
LATAM Airlines
Deal found 1/27$871
This Expedia deal was found by Cheapflights users on 1/26. 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.
qui 3/128:00 am
SEA
-
ASU
2 stops29h 40m
LATAM Airlines
qui 3/1911:20 am
ASU
-
SEA
2 stops38h 28m
LATAM Airlines
Deal found 1/26$938
This United Airlines deal was found by Cheapflights users on 1/27. 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.
dom 4/1211:35 pm
SEA
-
ASU
2 stops20h 30m
United Airlines
dom 4/196:33 am
ASU
-
SEA
2 stops58h 14m
United Airlines
Deal found 1/27$959
This BusinessClass deal was found by Cheapflights users on 1/27. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/48:25 am
SEA
-
ASU
3 stops53h 15m
LATAM Airlines
qua 9/161:10 pm
ASU
-
SEA
2 stops29h 33m
LATAM Airlines
Deal found 1/27$1,181
This Mytrip deal was found by Cheapflights users on 1/27. 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.
sex 9/411:30 am
SEA
-
ASU
3 stops34h 35m
Multiple Airlines
qua 9/161:10 pm
ASU
-
SEA
3 stops29h 06m
Multiple Airlines
Deal found 1/27$1,344
This Mytrip deal was found by Cheapflights users on 1/26. 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.
qui 3/1210:00 pm
SEA
-
ASU
3 stops27h 15m
Multiple Airlines
qui 3/198:20 am
ASU
-
SEA
3 stops31h 02m
Multiple Airlines
Deal found 1/26$1,384
This Expedia deal was found by Cheapflights users on 1/27. 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.
sex 2/278:00 am
SEA
-
ASU
2 stops41h 15m
Multiple Airlines
ter 3/108:20 am
ASU
-
SEA
2 stops41h 52m
Multiple Airlines
Deal found 1/27$3,789
This Orbitz deal was found by Cheapflights users on 1/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 2/268:08 am
SEA
-
ASU
2 stops40h 07m
Multiple Airlines
seg 3/98:25 am
ASU
-
SEA
2 stops41h 23m
Multiple Airlines
Deal found 1/26$3,925
This United Airlines deal was found by Cheapflights users on 1/26. 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.
seg 10/265:05 pm
SEA
-
ASU
3 stops27h 09m
United Airlines
qui 10/296:42 am
ASU
-
SEA
2 stops19h 41m
United Airlines
Deal found 1/26$5,369
This Orbitz deal was found by Cheapflights users on 1/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 2/268:35 am
SEA
-
ASU
2 stops40h 40m
LATAM Airlines
seg 3/911:20 am
ASU
-
SEA
3 stops62h 28m
LATAM Airlines
Deal found 1/26$5,667
This United Airlines deal was found by Cheapflights users on 1/27. 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.
sex 2/2711:59 pm
SEA
-
ASU
2 stops24h 33m
United Airlines
ter 3/106:42 am
ASU
-
SEA
3 stops22h 17m
United Airlines
Deal found 1/27$5,848

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 janeiro 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$938
(Expedia)

One-way from

$904
(Kiwi.com)

Popular in

March

Cheapest in

September
Provider with most accurate pricing for Seattle/Tacoma Intl-Asuncion Silvio Pettirossi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Asuncion Silvio Pettirossi flights.
Search Deals
From Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
Search Deals
One-way flight from Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($263 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
Search Deals

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 janeiro 28, 2026.
Use the filters below to find and compare flights from Seattle to Asuncion that are best for you.

Fly from

Seattle

Fly to

Asuncion

Route

Depart

Return

Price

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

qui 3/12

8:00 am-5:40 pm

2 stops29h 40m

Asuncion Silvio Pettirossi

qui 3/19

11:20 am-9:48 pm

2 stops38h 28m

$938

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

dom 4/12

11:35 pm-12:05 am

2 stops20h 30m

Asuncion Silvio Pettirossi

dom 4/19

6:33 am-12:47 pm

2 stops58h 14m

$959

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

qui 3/12

10:00 pm-5:15 am

3 stops27h 15m

Asuncion Silvio Pettirossi

qui 3/19

8:20 am-11:22 am

3 stops31h 02m

$1,384

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

qui 2/26

8:08 am-5:15 am

2 stops40h 07m

Asuncion Silvio Pettirossi

seg 3/9

8:25 am-9:48 pm

2 stops41h 23m

$3,925

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

qui 2/26

8:35 am-6:15 am

2 stops40h 40m

Asuncion Silvio Pettirossi

seg 3/9

11:20 am-9:48 pm

3 stops62h 28m

$5,667

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

sex 2/27

11:59 pm-5:32 am

2 stops24h 33m

Asuncion Silvio Pettirossi

ter 3/10

6:42 am-12:59 am

3 stops22h 17m

$5,848

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

seg 3/16

8:14 pm-5:15 am

3 stops53h 01m

$904

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

ter 3/17

5:52 pm-6:15 am

3 stops56h 23m

$1,083

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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 January.
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 janeiro 28, 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.
LATAM Airlines
7.5
Good
1,915 reviews

Food

6.7

Boarding

7.5

Crew

8.0

Entertainment

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken
LATAM Airlines
7.5
Good
1,915 reviews
LATAM Airlines
7.5
Good
1,915 reviews

Food

6.7

Boarding

7.5

Crew

8.0

Entertainment

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

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 20h 30m. LATAM Airlines provides one of the quickest options available for as low as $959. 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 29% 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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Alternative routes for Seattle to Asuncion

See prices for flight routes from nearby airports that may be better suited for you.
Spokane to Asuncion flights
Portland to Asuncion flights

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 janeiro 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$751Average$1,020FlexibilityNo cancel feeOn-time81%

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