ASU - IAD

$449 Find Cheap Flights from Asuncion to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Asuncion to Dulles Intl departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$746
Typical prices: $837-$985
Avianca
Wed 9/9Thu 9/24
ASU - IAD • 1 stop
Cheapest one-way
$449
Multiple Airlines
Thu 9/24
ASU - IAD • 3 stops
Top airlines
Cheapest • from $746 (round-trip)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Asuncion and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Asuncion to Dulles Intl (ASU-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Asuncion to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Asuncion to Dulles Intl

Wed, Sep 9 - Thu, Sep 24
Avianca Logo
8:25 am - 5:20 am
ASU
-
IAD
21h 55m
1 stop
Avianca Logo
3:35 pm - 4:40 am
IAD
-
ASU
12h 05m
1 stop
$746Avianca
Wed, Sep 9 - Thu, Sep 24
Avianca Logo
8:25 am - 4:20 am
ASU
-
IAD
20h 55m
2 stops
Avianca Logo
3:35 pm - 4:40 am
IAD
-
ASU
12h 05m
1 stop
$748Avianca
Sat, Dec 19 - Mon, Dec 28
Avianca Logo
8:20 am - 4:25 am
ASU
-
IAD
22h 05m
1 stop
Avianca Logo
2:35 pm - 5:15 am
IAD
-
ASU
12h 40m
1 stop
$778Avianca
Wed, Sep 2 - Wed, Sep 16
Avianca Logo
8:25 am - 5:20 am
ASU
-
IAD
21h 55m
1 stop
Avianca Logo
5:35 pm - 4:40 am
IAD
-
ASU
34h 05m
2 stops
$782Avianca
Wed, Sep 2 - Wed, Sep 16
Avianca Logo
8:25 am - 4:20 am
ASU
-
IAD
20h 55m
2 stops
Avianca Logo
5:35 pm - 4:40 am
IAD
-
ASU
34h 05m
2 stops
$793Avianca
Fri, Oct 16 - Tue, Oct 20
Avianca Logo
8:25 am - 5:20 am
ASU
-
IAD
21h 55m
1 stop
Avianca Logo
3:35 pm - 4:40 am
IAD
-
ASU
12h 05m
1 stop
$794Avianca
Fri, Oct 16 - Tue, Oct 20
LATAM Airlines Logo
8:10 am - 12:31 am
ASU
-
IAD
17h 21m
2 stops
LATAM Airlines Logo
12:30 pm - 5:40 pm
IAD
-
ASU
28h 10m
2 stops
$800LATAM Airlines
Tue, Dec 22 - Fri, Dec 25
Avianca Logo
8:20 am - 1:15 pm
ASU
-
IAD
30h 55m
1 stop
Avianca Logo
2:35 pm - 5:15 am
IAD
-
ASU
12h 40m
1 stop
$803Avianca
Wed, Nov 11 - Wed, Nov 18
Copa Airlines Logo
1:47 am - 11:33 pm
ASU
-
IAD
23h 46m
1 stop
Copa Airlines Logo
1:16 am - 11:57 pm
IAD
-
ASU
20h 41m
1 stop
$805Copa Airlines
Wed, Sep 23 - Tue, Sep 29
Avianca Logo
8:25 am - 4:20 am
ASU
-
IAD
20h 55m
2 stops
Avianca Logo
3:35 pm - 4:40 am
IAD
-
ASU
12h 05m
1 stop
$808Avianca
Booking Insights

KAYAK's insights & trends for Asuncion to Dulles Intl flights

Get data-powered insights and trends into flights from Asuncion to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Asuncion to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Asuncion to Washington, D.C. Dulles Intl Airport is September, where tickets cost $837 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $1,403 and $1,348 respectively.

Good to know

Low seasonOctober
Cheapest flight$449
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Asuncion to Washington Dulles Airport

When to book flights from Asuncion to Dulles Intl

Are your dates flexible? Find out the best times to travel from Asuncion to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Asuncion to Washington Dulles Airport flights

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

    In the last 5 days, the lowest price for a flight from Asuncion to Washington, D.C. Dulles Intl Airport was $449 for a one-way ticket and $746 for a round-trip.

  • Do I need a passport to fly between Asuncion and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Asuncion and on arrival in Washington Dulles Airport.

  • Which airports will I be using when flying from Asuncion to Washington Dulles Airport?

    Asuncion and Washington Dulles Airport are both served by 1 main airport. You will leave Asuncion from Asuncion Silvio Pettirossi and will be arriving at Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Asuncion to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Asuncion to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Asuncion and Washington Dulles Airport.

  • How does KAYAK find such low prices on flights from Asuncion to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Asuncion to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Asuncion to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Asuncion is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Asuncion to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Asuncion with another airline. Booking your flights between Asuncion and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Asuncion to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Asuncion up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Asuncion to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Asuncion to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Asuncion to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Copa AirlinesOverall score based on 1567 reviews
8.1Crew
7.8Boarding
6.9Food
7.4Comfort
6.8Entertainment
Airline reviews

Friendly crew, good food options, food not the best and seats not as comfy but that’s typical.

10.0 ExcellentSasha, Mar 2026
ASU - PTY
Read more Copa Airlines reviews

Friendly crew, good food options, food not the best and seats not as comfy but that’s typical.

Some of the Air hostesses are not that friendly. Need improvement

horrible service, food was an embarrassment, no charging for cellphones, stay away

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

Great experience with a crew always thinking in the passenger

We paid extra with copa for seats near one another The plane was changed and we lost our seats We were all Separated. We have not received a refund for our seats despite emailing and calling.

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

I loved my experience. Very safe, Very informative and very friendly.

It's the first time I couldn't check in online because they told me I had to call because there was a problem. Despite having called twice, I had to check in at the airport

Copa crew is almost never great in terms of service.

Everything you need to know for your flight from Asuncion to Dulles Intl

Information on your arrival and departure airports