WAS - ASU

$341 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Asuncion departing on 3/18. 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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Everything you should know

Cheapest round-trip
$710
Typical prices: $1,017-$1,199
Avianca
Mon 3/2Tue 3/17
IAD - ASU • 1 stop
Cheapest one-way
$341
Avianca
Wed 3/18
IAD - ASU • 1 stop
Top airlines
Avianca
Cheapest • from $710 (round-trip)
Copa Airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 47% price drop
April
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 Asuncion!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Asuncion (WAS-ASU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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 Washington, D.C. to Asuncion

Mon, Mar 2 - Tue, Mar 17
Avianca Logo
5:45 am - 5:15 am
IAD
-
ASU
21h 30m
1 stop
Avianca Logo
8:20 am - 5:25 am
ASU
-
IAD
22h 05m
1 stop
$710Avianca
Sun, Mar 8 - Sun, Mar 15
Copa Airlines Logo
9:29 am - 3:11 am
IAD
-
ASU
16h 42m
1 stop
Copa Airlines Logo
4:11 am - 12:32 am
ASU
-
IAD
21h 21m
1 stop
$732Copa Airlines
Thu, Mar 12 - Thu, Mar 19
Avianca Logo
7:15 pm - 5:15 am
IAD
-
ASU
33h 00m
2 stops
Avianca Logo
8:20 am - 5:25 am
ASU
-
IAD
22h 05m
1 stop
$742Avianca
Thu, Mar 12 - Thu, Mar 19
Avianca Logo
7:15 pm - 5:15 am
IAD
-
ASU
33h 00m
2 stops
Avianca Logo
8:20 am - 2:40 am
ASU
-
IAD
19h 20m
2 stops
$743Avianca
Thu, Mar 5 - Tue, Mar 10
Avianca Logo
6:15 pm - 5:15 am
IAD
-
ASU
33h 00m
2 stops
Avianca Logo
8:20 am - 5:25 am
ASU
-
IAD
22h 05m
1 stop
$750Avianca
Thu, Mar 5 - Tue, Mar 10
Copa Airlines Logo
3:35 pm - 12:15 am
IAD
-
ASU
30h 40m
1 stop
Copa Airlines Logo
6:42 am - 4:15 am
ASU
-
IAD
22h 33m
1 stop
$782Copa Airlines
Mon, Mar 2 - Tue, Mar 17
United Airlines Logo
6:07 am - 5:32 am
BWI
-
ASU
21h 25m
2 stops
United Airlines Logo
6:42 am - 11:30 am
ASU
-
BWI
29h 48m
2 stops
$962United Airlines
Tue, Apr 7 - Tue, Apr 14
LATAM Airlines Logo
11:52 am - 6:05 am
BWI
-
ASU
17h 13m
2 stops
LATAM Airlines Logo
8:10 am - 12:38 am
ASU
-
BWI
17h 28m
2 stops
$965LATAM Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
6:07 am - 12:15 am
BWI
-
ASU
16h 08m
2 stops
United Airlines Logo
6:42 am - 11:30 am
ASU
-
BWI
29h 48m
2 stops
$968United Airlines
Sat, Apr 18 - Mon, Apr 20
LATAM Airlines Logo
2:26 pm - 12:15 pm
BWI
-
ASU
20h 49m
2 stops
LATAM Airlines Logo
8:10 am - 12:38 am
ASU
-
BWI
17h 28m
2 stops
$1,009LATAM Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Asuncion flights

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

What is the cheapest month to fly from Washington, D.C. 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. 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. to Asuncion is October, where tickets cost $549 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $1,533 and $1,509 respectively.

Good to know

Low seasonJanuary
Cheapest flight$341
Best time to beat the crowds but there is an average 28% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Washington Dulles Airport to Asuncion

When to book flights from Washington, D.C. to Asuncion

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Asuncion

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Asuncion was $341 for a one-way ticket and $710 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Asuncion?

    Yes, you’ll need a passport to travel to Asuncion from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to Asuncion?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Asuncion Silvio Pettirossi.

  • Which aircraft models fly most regularly from Washington, D.C. to Asuncion?

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

  • Which airline alliances offer flights from Washington, D.C. to Asuncion?

    Star Alliance is the only airline alliance operating flights between Washington, D.C. 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 $1,067 and an overall rating of 7.5, Copa Airlines is the most popular choice. Avianca is also a great choice for the route, with an average price of $646 and an overall rating of 6.6.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Asuncion.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Asuncion from Washington, D.C. 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, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. 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 Washington, D.C. 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 Washington, D.C. 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.
7.5
Copa AirlinesOverall score based on 1560 reviews
6.8Food
8.1Crew
7.8Boarding
7.4Comfort
6.8Entertainment
Airline reviews

A lot things happened in this trip.The fly should be less stress.

6.0 GoodIrma, Jan 2026
PTY - MIA
Read more Copa Airlines reviews

A lot things happened in this trip.The fly should be less stress.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

I always enjoy flying Copa. There are very few airlines where I can enjoy a comfortable sleep in-flight. The snacks weren't the best, but they sufficed. The in-flight entertainment was fantastic, and I crossed another movie off my watch list.

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.

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

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

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

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

Deplaning was a mess, I sat in business (seats are horrible) and the front door had a problem so we had to deplane from the rear exit. The stairs were not tall enough to reach so there was a large step down from the plane to the top of the stairs.

Staff are the rudest in the industry … awful customer service … will never fly Avianca again

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

Here we have another airline flying to Guatemala but doesn't have a plus or a less, just in the middle. Why? Well, first we don't have even free water Movie selection is poor Seats don't recline in some places Food selection is carb based Forgot to mention, customer service on the web is the worst. Good things; Very reliable on schedule Kind crew

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

I like the crew they're very friendly. I don't like. on five hour flight they not offered snacks. Any drink. Not even coffee

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

I couldnt recline the seat. Other than that crew was very attentive and helpful. Thsnk you

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

This low cost airline looks and fells more like a local bus. In a 6 hour flight not being able to recline a seat is torture. The only thing available with no charge is a glass of water provided by, mostly, rude staff. Our luggage didn’t arrive

Everything you need to know for your flight from Washington, D.C. to Asuncion

Information on your arrival and departure airports