IAD - ASU

$385 Find Cheap Flights from Washington Dulles Airport to Asuncion

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Asuncion departing on 11/11. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Asuncion

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Asuncion, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Asuncion, as well as popular online travel agencies
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Asuncion 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 Dulles Intl to Asuncion

Tue, Nov 11 - Sat, Nov 15
Multiple Airlines Logo
4:30 am - 6:15 amIAD-ASU
23h 45m3 stops
Multiple Airlines Logo
8:20 am - 12:10 amASU-IAD
17h 50m2 stops
$849Multiple Airlines
Find Deal
Wed, Mar 11 - Mon, Mar 16
Multiple Airlines Logo
4:30 pm - 5:40 pmIAD-ASU
24h 10m2 stops
Multiple Airlines Logo
12:20 pm - 4:21 pmASU-IAD
29h 01m2 stops
$868Multiple Airlines
Find Deal
Wed, Mar 11 - Mon, Mar 16
LATAM Airlines Logo
1:00 pm - 5:40 pmIAD-ASU
27h 40m2 stops
LATAM Airlines Logo
8:25 am - 12:07 amASU-IAD
16h 42m2 stops
$875LATAM Airlines
Find Deal
Wed, Mar 11 - Mon, Mar 16
Multiple Airlines Logo
4:30 pm - 5:40 pmIAD-ASU
24h 10m2 stops
Multiple Airlines Logo
12:20 pm - 4:21 pmASU-IAD
29h 01m2 stops
$879Multiple Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
Avianca Logo
2:35 pm - 5:15 amIAD-ASU
12h 40m1 stop
Avianca Logo
8:20 am - 12:10 amASU-IAD
17h 50m3 stops
$922Avianca
Find Deal
Thu, Jan 15 - Thu, Jan 22
Avianca Logo
6:15 pm - 5:15 amIAD-ASU
33h 00m2 stops
Avianca Logo
8:20 am - 12:10 amASU-IAD
17h 50m2 stops
$929Avianca
Find Deal
Wed, Apr 1 - Sat, Apr 18
LATAM Airlines Logo
1:00 pm - 6:10 amIAD-ASU
16h 10m2 stops
LATAM Airlines Logo
8:25 am - 12:09 amASU-IAD
16h 44m2 stops
$965LATAM Airlines
Find Deal
Fri, Nov 28 - Mon, Dec 8
United Airlines Logo
10:12 pm - 12:11 amIAD-ASU
23h 59m2 stops
United Airlines Logo
6:33 am - 11:23 amASU-IAD
30h 50m2 stops
$987United Airlines
Find Deal
Mon, Mar 9 - Mon, Mar 16
Copa Airlines Logo
2:18 am - 12:15 amIAD-ASU
20h 57m1 stop
Copa Airlines Logo
6:42 am - 12:32 amASU-IAD
18h 50m1 stop
$988Copa Airlines
Find Deal
Tue, Mar 10 - Mon, Mar 16
Copa Airlines Logo
4:35 pm - 5:32 amIAD-ASU
11h 57m1 stop
Copa Airlines Logo
6:42 am - 12:32 amASU-IAD
18h 50m1 stop
$1,008Copa Airlines
Find Deal

Everything you should know

Top airlines
LATAM Airlines
Cheapest • from $875 (round-trip)
Copa Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 49% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$849
Typical prices: $538-$1,003
Multiple Airlines
Tue 11/11Sat 11/15
IAD - ASU • 3 stops
Cheapest one-way
$385
Multiple Airlines
Tue 11/11
IAD - ASU • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Asuncion!
Booking Insights

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

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

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Asuncion?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Asuncion departing in November.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Asuncion?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Asuncion clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Asuncion, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Saturdays and the most expensive ones on Wednesdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Asuncion, 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 Washington, D.C. Dulles Intl Airport to Asuncion is November, where tickets cost $538 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,566 and $1,323 respectively.

Good to know

Low seasonFebruary
Cheapest flight$385
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Washington Dulles Airport to Asuncion

When to book flights from Dulles Intl to Asuncion

Are your dates flexible? Find out the best times to travel from Dulles Intl to Asuncion 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 Washington Dulles Airport to Asuncion flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Asuncion was $385 for a one-way ticket and $849 for a round-trip.

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

    Yes, you’ll need a passport to travel to Asuncion from Washington Dulles Airport.

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

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

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

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

  • Which is the best airline for flights from Washington, D.C. to Asuncion, Copa Airlines or Avianca?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Asuncion are Copa Airlines and Avianca. With an average price for the route of $1,086 and an overall rating of 7.6, Copa Airlines is the most popular choice. Avianca is also a great choice for the route, with an average price of $668 and an overall rating of 6.6.

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

    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 Washington Dulles Airport to Asuncion.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Asuncion from Washington Dulles Airport 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 Washington Dulles Airport to Asuncion?

    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 Asuncion with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and ASU 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 Washington Dulles Airport to Asuncion?

    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 Asuncion from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl to Asuncion

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Asuncion. 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 Dulles Intl to Asuncion? 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 1563 reviews
8.1Crew
7.8Boarding
7.4Comfort
6.8Entertainment
6.8Food
Airline reviews

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

6.0 GoodZach, Oct 2025DEN - PTY
Read more Copa Airlines reviews

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Simply as follows:- First, there was no vegetarian option for the meal Second, only 2 washrooms for the entire economy class.

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

As always, Copa Airlines is great to fly on. The flights are always on time, the staff are pleasant and helpful and it's always a wonderful flying experience.

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

Great experience with a crew always thinking in the passenger

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

It was horrible. My experience with Avianca. I didn’t know it was Pakistan international Airlines but anyway, whatever it is it is bad horrible you guys need to upgrade everything in those planes. And you guys charge $130 for a carry-on did they wanna let me in with my carry-on that I travel everywhere with the luggage you guys are such a dog thank you

The incoming plane was late and no information was shared. They even announced we would board in 10 muntes 40 minutes prior to the plane arriving, and the website said until takeoff that we had taken off an hour earlier

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

The chicken that was served in business class was cold!

Late departure. When the flight arrived in Medellin the plane sat at the gate for 20 minutes waiting for a bus for us to get off the plane.

I receive a service for what I pay, so it is fair.

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

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