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Cheap flights from Seattle to Asuncion from $4,361

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Asuncion departing on 8/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Asuncion

Cheap round-trip flights

GOL Logo
11:42 am - 11:40 amSEA-ASU
19h 58m2 stops
GOL Logo
12:30 pm - 10:54 amASU-SEA
26h 24m2 stops
$4,361GOL
Find Deal
Sat, Aug 30 - Wed, Sep 10
Copa Airlines Logo
5:14 pm - 12:05 amSEA-ASU
26h 51m2 stops
Copa Airlines Logo
6:31 am - 10:15 pmASU-SEA
19h 44m2 stops
$4,768Copa Airlines
Find Deal
Sun, Aug 31 - Thu, Sep 11
LATAM Airlines Logo
4:59 pm - 6:10 amSEA-ASU
33h 11m2 stops
LATAM Airlines Logo
11:05 am - 10:06 pmASU-SEA
63h 01m3 stops
$5,335LATAM Airlines
Find Deal
Sun, Aug 31 - Thu, Sep 11
United Airlines Logo
10:40 am - 12:05 amSEA-ASU
33h 25m2 stops
United Airlines Logo
1:45 am - 1:33 pmASU-SEA
39h 48m3 stops
$5,461United Airlines
Find Deal
Sun, Aug 31 - Wed, Sep 10
Logo
12:05 pm - 1:50 amSEA-ASU
33h 45m3 stops
Logo
3:35 am - 10:59 amASU-SEA
35h 24m3 stops
$11,749
Find Deal
Sun, Aug 31 - Wed, Sep 10

momondo 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, momondo users made 832,500 searches. Data last updated August 1, 2025.
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

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 8/31

5:14 pm-12:05 am

2 stops26h 51m

Asuncion Silvio Pettirossi

Thu 9/11

6:31 am-10:15 pm

2 stops19h 44m

$4,768

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 8/31

4:59 pm-6:10 am

2 stops33h 11m

Asuncion Silvio Pettirossi

Thu 9/11

11:05 am-10:06 pm

3 stops63h 01m

$5,335

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 8/31

10:40 am-12:05 am

2 stops33h 25m

Asuncion Silvio Pettirossi

Wed 9/10

1:45 am-1:33 pm

3 stops39h 48m

$5,461

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 8/31

12:05 pm-1:50 am

3 stops33h 45m

Asuncion Silvio Pettirossi

Wed 9/10

3:35 am-10:59 am

3 stops35h 24m

$11,749

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Asuncion from

How to get the cheapest flight ticket from Seattle to Asuncion

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Asuncion?

According to our data, Monday is the cheapest day to fly to Asuncion from Seattle. The lowest ticket price found for a Monday departure recently was $1,015. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Asuncion is Sunday, with ticket prices averaging around $1,449.

What is the cheapest time of day to depart on your flight to Asuncion?

The cheapest time of day to fly to Asuncion is at noon when flights can be purchased for as low as $1,222. Flights in the morning are often more expensive with an average ticket price of $1,469.

When to book flights from Seattle to Asuncion

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Asuncion according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Asuncion (SEA to ASU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Asuncion

Best Price Found

$4,361

Fastest flight time

19h 58m

Direct flights

None

Airports in Asuncion

1 airport
The best flight deal from Seattle to Asuncion found on momondo in the last 72 hours is $4,361
The fastest flight from Seattle to Asuncion takes 19h 58m
There are no direct flights from Seattle to Asuncion. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Asuncion Silvio Pettirossi Airport.
There is 1 airport near Asuncion: Asuncion Silvio Pettirossi (ASU)
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  • How far is Seattle/Tacoma Intl to Asuncion Silvio Pettirossi by plane?

    Asuncion Silvio Pettirossi is 6431.9 mi away from Seattle/Tacoma Intl. 19h 58m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Asuncion Silvio Pettirossi Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Asuncion Silvio Pettirossi Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Asuncion Silvio Pettirossi Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Asuncion Silvio Pettirossi Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Asuncion Silvio Pettirossi Airport.

  • What documentation or ID do you need to fly to Asuncion Silvio Pettirossi Airport?

    The travel and health documents required for your trip to Asuncion Silvio Pettirossi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Asuncion Silvio Pettirossi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Asuncion?

Best airlines flying from Seattle to Asuncion

Compare and see reviews for airlines that fly from Seattle to Asuncion with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $751Free CancellationRating
7.5
1,822 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $952Free CancellationRating
7.5
1,493 reviews
Search Copa Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Asuncion?

Finding the right flight to Asuncion from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Asuncion quick and easy, saving you time and money.

Can I find flights from Seattle to Asuncion with flexible booking policies on momondo?

Yes. All flights to Asuncion from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Asuncion?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Asuncion.

I’m not ready to book a flight from Seattle to Asuncion right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Asuncion flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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