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Asuncion

$662+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ASU
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap 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 July 30, 2025.

Round-trip from

$4,361
(business-class.com)

One-way from

$662
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$1,278
From Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
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One-way flight from Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
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Highest demand for flights based on searches. 16% potential increase in price ($252 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 30, 2025.

This FlightHub deal was found by Cheapflights users on 7/29. 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.
Tue 7/294:20 pmSEA - ASU
2 stops39h 45mLATAM Airlines
Thu 8/2811:05 amASU - SEA
2 stops39h 18mLATAM Airlines
Deal found 7/29$1,479
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 7/297:00 pmSEA - ASU
2 stops54h 28mUnited Airlines
Wed 8/271:45 amASU - SEA
2 stops49h 14mUnited Airlines
Deal found 7/29$1,707
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Tue 7/2910:00 pmSEA - ASU
3 stops34h 05mMultiple Airlines
Wed 8/273:35 amASU - SEA
3 stops35h 25mMultiple Airlines
Deal found 7/29$2,271
This business-class.com deal was found by Cheapflights users on 7/30. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:42 amSEA - ASU
2 stops19h 58mGOL
Wed 9/1012:30 pmASU - SEA
2 stops26h 24mGOL
Deal found 7/30$4,361
This AranGrant deal was found by Cheapflights users on 7/29. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:14 pmSEA - ASU
2 stops26h 40mCopa Airlines
Wed 9/31:45 amASU - SEA
2 stops24h 30mCopa Airlines
Deal found 7/29$4,768

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 July 30, 2025.
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

Sat 8/30

11:42 am-11:40 am

2 stops19h 58m

Asuncion Silvio Pettirossi

Wed 9/10

12:30 pm-10:54 am

2 stops26h 24m

$4,361

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 8/24

3:05 pm-6:10 am

2 stops35h 05m

Asuncion Silvio Pettirossi

Thu 9/4

8:25 am-10:27 am

2 stops30h 02m

$4,692

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 8/24

5:14 pm-11:54 pm

2 stops26h 40m

Asuncion Silvio Pettirossi

Wed 9/3

1:45 am-10:15 pm

2 stops24h 30m

$4,768

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 8/24

7:10 am-5:26 am

3 stops42h 16m

Asuncion Silvio Pettirossi

Wed 9/3

1:45 am-3:14 pm

2 stops41h 29m

$5,512

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 8/24

12:05 pm-1:50 am

3 stops33h 45m

Asuncion Silvio Pettirossi

Thu 9/4

10:25 am-10:59 am

3 stops28h 34m

$8,240

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 8/11

10:58 pm-5:40 pm

3 stops38h 42m

$662

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Tue 8/12

7:55 pm-11:40 am

3 stops35h 45m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Asuncion

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

Find hourly flight availability from Seattle 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 July 30, 2025.

It’s optimal to fly from Seattle to Asuncion at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

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 July 30, 2025.
Peruse reviews from past customers who have flown with LATAM Airlines, Copa Airlines, and United 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
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,822 reviews
LATAM Airlines
7.5
Good
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Copa Airlines
7.5
Good
1,493 reviews
LATAM Airlines
7.5
Good
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
United Airlines
7.4
Good
8,896 reviews
LATAM Airlines
7.5
Good
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
GOL
7.3
Good
1,091 reviews
LATAM Airlines
7.5
Good
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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.

  • What are the cheapest airlines flying from Seattle to Asuncion round-trip?

    GOL, at $4,361, was found to be the cheapest airline from Seattle to Asuncion.Alternate airlines to your destination round-trip include LATAM Airlines and Copa Airlines.

  • 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.

  • What is the cheapest month to book a flight from Seattle to Asuncion?

    Currently, April is the cheapest month in which you can book a flight from Seattle to Asuncion (average of $715). Flying from Seattle to Asuncion in December is currently the most expensive (average of $1,024). 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.

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 2 airlines flying from Seattle to Asuncion

Discover the top 2 airlines 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$751Average$1,142FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$952Average$1,352FlexibilityNo cancel feeOn-time70%

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