The cheapest times to fly from ASU to SEA are

  • January 22nd to April 29th (except the weeks of February 5th and March 26th)
  • May 21st to June 10th
  • August 6th to October 28th (except the week of October 15th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ASU to SEA is late October. Prices can be as high as $2057 for Sunday flights during early to mid December, or as low as $989 for Tuesday flights around late October.


When to Fly to Seattle

Flying from Asuncion (ASU) to Seattle, WA (SEA) will usually cost between $1032 to $1275 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October with an average ticket price of $1030. Due to high demand the most expensive time to fly is early to mid December, with an average price of $1487. Planning your trip to low-cost times can easily save you $457 on economy flights and even more on first-class flights. Generally, any price below $1060 can be considered a good price for a round-trip ASU to SEA flight.

See below for a graph of average weekly prices for the ASU to SEA route. All prices are for round-trip tickets in USD.

ASU to SEA Flight Prices

Compared to other flights, the ASU to SEA flight is priced close to the average and costs less than the average flight leaving from Asuncion. The average price per mile (for a direct flight) is $0.1, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to SEA, and Monday the cheapest day to fly back into ASU. Sundays are the most expensive days to fly to Seattle, and Fridays are the most expensive days to return to Asuncion. Selecting flights on the least expensive days could save you up to $63 (5%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1076. Return trip prices are from the SEA to ASU flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ASU to SEA can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 33 minutes may not be realistic.


Flight Hacking ASU to SEA

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ASU to SEA — but Champion Traveler does!

Hack #1: Chicago, IL (ASU > ORD > SEA)

  • Price for both tickets: $935
  • Average savings: $126 (11.84%)

See ASU to LAX flights

Hack #2: Los Angeles, CA (ASU > LAX > SEA)

  • Price for both tickets: $950
  • Average savings: $111 (10.42%)

See ASU to ORD flights

Hack #3: Orlando, FL (ASU > MCO > SEA)

  • Price for both tickets: $989
  • Average savings: $72 (6.75%)

See ASU to MCO flights


Flight Questions Answered

Still have questions about flying from ASU to SEA? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Aerolineas Argentinas, Aeromexico, Alaska, American, Avianca, COPA, Delta, Gol, LATAM, SAS, United, and potentially more during busy seasons.

How far away is it from Seattle/Tacoma International Airport to Silvio Pettirossi International Airport?

The distance between the two airports is roughly 6430 miles or 10348 kilometers.

How long does it take to fly from ASU to SEA?

The real-world flight time for a nonstop ASU to SEA flight is about 12 hour 33 minutes.

How many flights go between Asuncion and Seattle, WA?

It depends on the day of the week and the date, but a typical day might have around 15 available flights from ASU to SEA.


Airport Location Info


Departing Airport

Origination code ASU
Origination airport name Silvio Pettirossi International Airport
City Asuncion
Country Paraguay
Latitude -25.2
Longitude -57.5

Return Airport

Destination code SEA
Destination airport name Seattle/Tacoma International Airport
City Seattle, WA
Country the United States
Latitude 47.5
Longitude -122.3


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.