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Asuncion

$272+ Cheap flights from Dulles Intl (IAD) 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ASU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Asuncion Silvio Pettirossi are usually found in January or April, booked 70 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Dulles Intl to Asuncion

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 September 11, 2025.

Round-trip from

$752
(Kiwi.com)

One-way from

$272
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$922
From Washington, D.C. Dulles Intl to Asuncion Silvio Pettirossi
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One-way flight from Washington, D.C. Dulles Intl to Asuncion Silvio Pettirossi
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Highest demand for flights based on searches. 3% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Asuncion

Cheapest flights from Dulles Intl to Asuncion
Explore the most affordable flight options available from Dulles Intl to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:10 pmIAD - ASU
2 stops36h 30mMultiple Airlines
Tue 11/118:20 amASU - IAD
1 stop22h 05mMultiple Airlines
Deal found 9/10$752
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/243:10 pmIAD - ASU
2 stops36h 30mMultiple Airlines
Tue 11/118:20 amASU - IAD
1 stop22h 05mMultiple Airlines
Deal found 9/10$759
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:20 pmIAD - ASU
1 stop12h 20mAvianca
Thu 11/138:20 amASU - IAD
2 stops17h 50mAvianca
Deal found 9/10$807
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:05 amIAD - ASU
2 stops23h 35mAvianca
Sat 11/18:20 amASU - IAD
2 stops17h 50mAvianca
Deal found 9/9$816
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:25 pmIAD - ASU
3 stops34h 25mMultiple Airlines
Tue 10/2112:30 pmASU - IAD
2 stops26h 08mMultiple Airlines
Deal found 9/11$824
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/233:20 pmIAD - ASU
1 stop12h 20mAvianca
Thu 11/138:20 amASU - IAD
2 stops17h 50mAvianca
Deal found 9/10$827
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:15 pmIAD - ASU
2 stops33h 00mAvianca
Thu 11/208:20 amASU - IAD
2 stops17h 50mAvianca
Deal found 9/10$833
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:20 pmIAD - ASU
1 stop12h 20mAvianca
Sat 11/158:20 amASU - IAD
2 stops17h 50mAvianca
Deal found 9/10$838
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/113:20 pmIAD - ASU
1 stop12h 20mMultiple Airlines
Wed 10/158:10 amASU - IAD
2 stops31h 15mMultiple Airlines
Deal found 9/9$843
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/253:20 pmIAD - ASU
1 stop12h 20mAvianca
Thu 11/138:20 amASU - IAD
2 stops17h 50mAvianca
Deal found 9/10$850
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/233:20 pmIAD - ASU
1 stop12h 20mAvianca
Sat 11/158:20 amASU - IAD
2 stops17h 50mAvianca
Deal found 9/10$854

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Asuncion that are best for you.

Fly from

Dulles Intl

Fly to

Asuncion

Route

Depart

Return

Price

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Sat 10/11

3:20 pm-4:40 am

1 stop12h 20m

Asuncion Silvio Pettirossi

Wed 10/15

8:10 am-2:25 pm

2 stops31h 15m

$843

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Mon 10/20

5:05 pm-4:40 am

2 stops34h 35m

Asuncion Silvio Pettirossi

Thu 11/13

8:20 am-12:10 am

2 stops17h 50m

$876

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Tue 10/21

4:05 am-4:40 am

2 stops23h 35m

Asuncion Silvio Pettirossi

Thu 11/13

8:20 am-12:10 am

2 stops17h 50m

$876

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Tue 10/21

4:05 am-4:40 am

2 stops23h 35m

Asuncion Silvio Pettirossi

Tue 11/11

8:20 am-12:10 am

2 stops17h 50m

$876

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Mon 10/20

5:05 pm-4:40 am

2 stops34h 35m

Asuncion Silvio Pettirossi

Sat 11/15

8:20 am-12:10 am

2 stops17h 50m

$876

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Tue 10/21

4:05 am-4:40 am

2 stops23h 35m

Asuncion Silvio Pettirossi

Sat 11/15

8:20 am-12:10 am

2 stops17h 50m

$876

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Thu 10/23

5:45 am-4:40 am

2 stops21h 55m

Asuncion Silvio Pettirossi

Tue 11/11

8:20 am-12:10 am

2 stops17h 50m

$876

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Sat 10/25

5:45 am-4:40 am

2 stops21h 55m

Asuncion Silvio Pettirossi

Tue 11/11

8:20 am-12:10 am

2 stops17h 50m

$876

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Wed 10/15

7:00 am-3:20 pm

3 stops31h 20m

Asuncion Silvio Pettirossi

Mon 10/20

3:25 am-5:35 am

3 stops27h 10m

$902

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Thu 10/9

3:20 pm-4:40 am

1 stop12h 20m

Asuncion Silvio Pettirossi

Sun 10/19

8:10 am-5:35 am

1 stop22h 25m

$915

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 16 results
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Best time to book a flight from Dulles Intl to Asuncion

Have a flexible travel schedule? Discover the best time to fly to Asuncion from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Asuncion

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Asuncion?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Asuncion. Price data was last updated on August 29, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Asuncion may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Asuncion?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Asuncion (average of $715). Flying from Washington, D.C. Dulles Intl Airport 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.

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

Find hourly flight availability from Dulles Intl 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 September 11, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Asuncion is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 46% on airfare.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Asuncion?

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 September 11, 2025.
Get a feel of what it's like to fly with Copa Airlines and Avianca from Washington, D.C. Dulles Intl Airport to Asuncion by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,531 reviews

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Copa Airlines
7.6
Good
1,531 reviews
Copa Airlines
7.6
Good
1,531 reviews

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Avianca
6.7
Okay
2,436 reviews
Copa Airlines
7.6
Good
1,531 reviews

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Asuncion. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Asuncion from Washington, D.C. Dulles Intl?

    Located just 7.8 mi from the city center, Asuncion Silvio Pettirossi is the airport most travelers will use when flying to Asuncion from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Silvio Pettirossi (ASU) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 2 different airlines.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Asuncion?

    Avianca can get you from Washington, D.C. Dulles Intl Airport to Asuncion in just under 34h 35m. Your travel time can differ by up to . Washington, D.C. Dulles Intl Airport and Asuncion are separated by a distance of 4615 mi.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Asuncion round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Asuncion round-trip from $255. Another airline that can offer you cheap pricing is Copa Airlines. You may be able to fly from Washington, D.C. Dulles Intl Airport to Asuncion for 75% less than the average price by searching for these airlines.

  • Can I find deals for flights from Dulles Intl to Asuncion that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Asuncion flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Asuncion?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Asuncion.

  • Can I find deals for business class flights from Dulles Intl to Asuncion?

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Asuncion?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Asuncion (average of $715). Flying from Washington, D.C. Dulles Intl Airport 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 Dulles Intl to Asuncion

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Asuncion flights
Baltimore to Asuncion flights

Top 2 airlines flying from Dulles Intl to Asuncion

Discover the top 2 airlines that operate flights from Dulles Intl 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$255Average$668FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$677Average$1,027FlexibilityNo cancel feeOn-time70%

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