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Cheap flights from Seattle to Asuncion from $557

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Asuncion departing on 8/21. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Seattle to Asuncion

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
10:15 am - 5:40 pm
SEA
-
ASU
27h 25m
2 stops
LATAM Airlines Logo
11:05 am - 3:05 pm
ASU
-
SEA
32h 00m
2 stops
$1,021LATAM Airlines
Wed, May 6 - Wed, May 13
Copa Airlines Logo
5:22 pm - 12:03 am
SEA
-
ASU
26h 41m
2 stops
Copa Airlines Logo
6:33 am - 9:56 pm
ASU
-
SEA
19h 23m
2 stops
$1,024Copa Airlines
Mon, Aug 31 - Thu, Sep 10
LATAM Airlines Logo
7:25 am - 6:05 am
SEA
-
ASU
18h 40m
2 stops
LATAM Airlines Logo
8:10 am - 10:00 am
ASU
-
SEA
29h 50m
2 stops
$1,041LATAM Airlines
Sun, Apr 19 - Thu, Apr 23
LATAM Airlines Logo
7:20 am - 6:05 am
SEA
-
ASU
18h 45m
2 stops
LATAM Airlines Logo
11:10 am - 9:59 pm
ASU
-
SEA
38h 49m
2 stops
$1,227LATAM Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
11:59 pm - 12:08 am
SEA
-
ASU
44h 09m
2 stops
United Airlines Logo
6:33 am - 2:36 pm
ASU
-
SEA
36h 03m
3 stops
$1,285United Airlines
Wed, May 6 - Wed, May 13
United Airlines Logo
5:00 pm - 12:03 am
SEA
-
ASU
27h 03m
2 stops
United Airlines Logo
6:33 am - 7:07 pm
ASU
-
SEA
40h 34m
2 stops
$1,308United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
5:00 pm - 5:31 am
SEA
-
ASU
32h 31m
2 stops
United Airlines Logo
6:33 am - 2:22 pm
ASU
-
SEA
35h 49m
3 stops
$1,333United Airlines
Fri, Sep 11 - Tue, Sep 15
Multiple Airlines Logo
9:30 am - 5:40 pm
SEA
-
ASU
28h 10m
2 stops
Multiple Airlines Logo
8:10 am - 9:30 am
ASU
-
SEA
29h 20m
2 stops
$1,556Multiple Airlines
Sat, Jun 27 - Sat, Jul 4
United Airlines Logo
11:56 pm - 12:03 am
SEA
-
ASU
20h 07m
2 stops
United Airlines Logo
6:33 am - 2:22 pm
ASU
-
SEA
35h 49m
3 stops
$1,590United Airlines
Mon, Aug 31 - Thu, Sep 10
Multiple Airlines Logo
11:00 pm - 6:05 am
SEA
-
ASU
27h 05m
3 stops
Multiple Airlines Logo
8:10 am - 10:31 am
ASU
-
SEA
30h 21m
3 stops
$2,265Multiple Airlines
Sat, Jun 27 - Sat, Jul 4

LATAM Airlines flights from Seattle to Asuncion

Our best LATAM Airlines deals on Seattle to Asuncion flight tickets
LATAM Airlines
May 6
SEA10:15 amSeattle/Tacoma Intl
27h 25m
2 stops
ASU5:40 pmAsuncion Silvio Pettirossi
May 13
ASU11:05 amAsuncion Silvio Pettirossi
32h 00m
2 stops
SEA3:05 pmSeattle/Tacoma Intl
$1,021
LATAM Airlines
Apr 19
SEA7:25 amSeattle/Tacoma Intl
18h 40m
2 stops
ASU6:05 amAsuncion Silvio Pettirossi
Apr 23
ASU8:10 amAsuncion Silvio Pettirossi
29h 50m
2 stops
SEA10:00 amSeattle/Tacoma Intl
$1,041
LATAM Airlines
Sep 11
SEA7:20 amSeattle/Tacoma Intl
18h 45m
2 stops
ASU6:05 amAsuncion Silvio Pettirossi
Sep 15
ASU11:10 amAsuncion Silvio Pettirossi
38h 49m
2 stops
SEA9:59 pmSeattle/Tacoma Intl
$1,227

United Airlines flights from Seattle to Asuncion

Our best United Airlines deals on Seattle to Asuncion flight tickets
United Airlines
May 6
SEA11:59 pmSeattle/Tacoma Intl
44h 09m
2 stops
ASU12:08 amAsuncion Silvio Pettirossi
May 13
ASU6:33 amAsuncion Silvio Pettirossi
36h 03m
3 stops
SEA2:36 pmSeattle/Tacoma Intl
$1,285
United Airlines
Sep 11
SEA5:00 pmSeattle/Tacoma Intl
27h 03m
2 stops
ASU12:03 amAsuncion Silvio Pettirossi
Sep 15
ASU6:33 amAsuncion Silvio Pettirossi
40h 34m
2 stops
SEA7:07 pmSeattle/Tacoma Intl
$1,308
United Airlines
Sep 11
SEA5:00 pmSeattle/Tacoma Intl
32h 31m
2 stops
ASU5:31 amAsuncion Silvio Pettirossi
Sep 15
ASU6:33 amAsuncion Silvio Pettirossi
35h 49m
3 stops
SEA2:22 pmSeattle/Tacoma Intl
$1,333

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 March 25, 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

Wed 5/6

10:15 am-5:40 pm

2 stops27h 25m

Asuncion Silvio Pettirossi

Wed 5/13

11:05 am-3:05 pm

2 stops32h 00m

$1,021
Quickest round-trip

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 8/31

5:22 pm-12:03 am

2 stops26h 41m

Asuncion Silvio Pettirossi

Thu 9/10

6:33 am-9:56 pm

2 stops19h 23m

$1,024

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sun 4/19

7:25 am-6:05 am

2 stops18h 40m

Asuncion Silvio Pettirossi

Thu 4/23

8:10 am-10:00 am

2 stops29h 50m

$1,041

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Fri 9/11

7:20 am-6:05 am

2 stops18h 45m

Asuncion Silvio Pettirossi

Tue 9/15

11:10 am-9:59 pm

2 stops38h 49m

$1,227

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Wed 5/6

11:59 pm-12:08 am

2 stops44h 09m

Asuncion Silvio Pettirossi

Wed 5/13

6:33 am-2:36 pm

3 stops36h 03m

$1,285

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Fri 9/11

5:00 pm-12:03 am

2 stops27h 03m

Asuncion Silvio Pettirossi

Tue 9/15

6:33 am-7:07 pm

2 stops40h 34m

$1,308

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Fri 9/11

5:00 pm-5:31 am

2 stops32h 31m

Asuncion Silvio Pettirossi

Tue 9/15

6:33 am-2:22 pm

3 stops35h 49m

$1,333

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sat 6/27

9:30 am-5:40 pm

2 stops28h 10m

Asuncion Silvio Pettirossi

Sat 7/4

8:10 am-9:30 am

2 stops29h 20m

$1,556

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 8/31

11:56 pm-12:03 am

2 stops20h 07m

Asuncion Silvio Pettirossi

Thu 9/10

6:33 am-2:22 pm

3 stops35h 49m

$1,590

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sat 6/27

11:00 pm-6:05 am

3 stops27h 05m

Asuncion Silvio Pettirossi

Sat 7/4

8:10 am-10:31 am

3 stops30h 21m

$2,265

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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

Fastest flight time

25h 58m

Direct flights

None
The fastest flight from Seattle to Asuncion takes 25h 58m
There are no direct flights from Seattle to Asuncion. There are no popular flight routes from Seattle to Asuncion.
Search flight deals

  • How far is Seattle/Tacoma Intl to Asuncion Silvio Pettirossi by plane?

    Asuncion Silvio Pettirossi is 6431.9 mi away from Seattle/Tacoma Intl. 25h 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 $729Free CancellationRating
7.4
1,905 reviews
Search LATAM Airlines flights

  • How do I get Price Alerts for flights from Seattle to Asuncion?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Seattle from Asuncion. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Seattle to Asuncion with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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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