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Asuncion

$341+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ASU
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 January 26, 2026.

This Priceline deal was found by Cheapflights users on 1/24. 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.
Fri 3/133:35 pm
IAD
-
ASU
1 stop12h 40m
Avianca
Sat 3/218:20 am
ASU
-
IAD
2 stops19h 20m
Avianca
Deal found 1/24$661
This Copa Airlines deal was found by Cheapflights users on 1/25. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/89:29 am
IAD
-
ASU
1 stop16h 42m
Copa Airlines
Sun 3/154:11 am
ASU
-
IAD
1 stop21h 21m
Copa Airlines
Deal found 1/25$732
This Priceline deal was found by Cheapflights users on 1/26. 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.
Thu 3/127:15 pm
IAD
-
ASU
2 stops33h 00m
Avianca
Thu 3/198:20 am
ASU
-
IAD
1 stop22h 05m
Avianca
Deal found 1/26$742
This Priceline deal was found by Cheapflights users on 1/23. 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.
Thu 3/56:15 pm
IAD
-
ASU
2 stops33h 00m
Avianca
Tue 3/108:20 am
ASU
-
IAD
1 stop22h 05m
Avianca
Deal found 1/23$750
This Mytrip deal was found by Cheapflights users on 1/24. 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.
Fri 3/133:35 pm
IAD
-
ASU
3 stops33h 40m
Multiple Airlines
Sat 3/218:20 am
ASU
-
IAD
2 stops20h 50m
Multiple Airlines
Deal found 1/24$766
This Priceline deal was found by Cheapflights users on 1/24. 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.
Wed 2/185:45 am
IAD
-
ASU
1 stop21h 30m
Avianca
Thu 3/58:20 am
ASU
-
IAD
1 stop22h 05m
Avianca
Deal found 1/24$769
This Priceline deal was found by Cheapflights users on 1/24. 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.
Mon 2/162:35 pm
IAD
-
ASU
1 stop12h 40m
Avianca
Thu 3/58:20 am
ASU
-
IAD
2 stops20h 50m
Avianca
Deal found 1/24$771
This BusinessClass deal was found by Cheapflights users on 1/23. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:35 pm
IAD
-
ASU
1 stop33h 36m
Copa Airlines
Wed 3/116:42 am
ASU
-
IAD
1 stop22h 33m
Copa Airlines
Deal found 1/23$782

Find 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$732
(Copa Airlines)

One-way from

$341
(Avianca)

Popular in

December

Cheapest in

January

Average price

$397
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Asuncion Silvio Pettirossi flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Asuncion Silvio Pettirossi flights.
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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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High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 26, 2026.
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

Sun 3/8

9:29 am-3:11 am

1 stop16h 42m

Asuncion Silvio Pettirossi

Sun 3/15

6:42 am-4:15 am

1 stop22h 33m

$732

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Sun 3/8

9:29 am-3:11 am

1 stop16h 42m

Asuncion Silvio Pettirossi

Mon 3/16

6:42 am-4:15 am

1 stop22h 33m

$732

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Mon 3/9

2:18 am-12:15 am

1 stop20h 57m

Asuncion Silvio Pettirossi

Mon 3/16

6:42 am-4:15 am

1 stop22h 33m

$732

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Fri 3/13

4:00 am-5:15 am

2 stops24h 15m

Asuncion Silvio Pettirossi

Sat 3/21

8:20 am-4:10 am

2 stops20h 50m

$741

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Thu 3/5

6:15 pm-5:15 am

2 stops33h 00m

Asuncion Silvio Pettirossi

Tue 3/10

8:20 am-5:25 am

1 stop22h 05m

$750

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Fri 3/13

3:35 pm-2:15 am

3 stops33h 40m

Asuncion Silvio Pettirossi

Sat 3/21

8:20 am-4:10 am

2 stops20h 50m

$766

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Wed 2/18

2:35 pm-5:15 am

1 stop12h 40m

Asuncion Silvio Pettirossi

Thu 3/5

8:20 am-1:40 am

2 stops19h 20m

$771

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Thu 3/5

3:35 pm-3:11 am

1 stop33h 36m

Asuncion Silvio Pettirossi

Wed 3/11

6:42 am-4:15 am

1 stop22h 33m

$782

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Fri 3/6

5:45 am-5:15 am

1 stop21h 30m

Asuncion Silvio Pettirossi

Tue 3/10

8:20 am-4:10 am

2 stops20h 50m

$890

Washington, D.C.Asuncion

IAD - ASU

IADASU

Washington, D.C. Dulles Intl

Wed 3/18

6:45 am-5:15 am

1 stop21h 30m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 19 results
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2

Compare providers for flights from Dulles Intl to Asuncion

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Asuncion in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Asuncion flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Asuncion flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Asuncion flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Asuncion flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Asuncion flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Asuncion (average of $368). Flying from Washington, D.C. Dulles Intl Airport to Asuncion in March is currently the most expensive (average of $970). 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.

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 January 26, 2026.
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
1,558 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Maria,Dec 2025

MIA - PTY

The second flight to salta Argentina was terrible..the plain is old no entertainment no good food no nothing
Copa Airlines
7.6
Good
1,558 reviews
Copa Airlines
7.6
Good
1,558 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Maria,Dec 2025

MIA - PTY

The second flight to salta Argentina was terrible..the plain is old no entertainment no good food no nothing
Avianca
6.6
Okay
2,492 reviews
Copa Airlines
7.6
Good
1,558 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Maria,Dec 2025

MIA - PTY

The second flight to salta Argentina was terrible..the plain is old no entertainment no good food no nothing

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?

    Copa Airlines can get you from Washington, D.C. Dulles Intl Airport to Asuncion in just under 16h 42m. 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 $365. 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 63% 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Asuncion (average of $368). Flying from Washington, D.C. Dulles Intl Airport to Asuncion in March is currently the most expensive (average of $970). 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$365Average$883FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$538Average$1,088FlexibilityNo cancel feeOn-time70%

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