IAD - MDZ

$365 Find Cheap Flights from Washington, D.C. to Mendoza

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 Mendoza departing on 8/6. 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 Mendoza

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Mendoza, 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 Mendoza, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$827
LATAM Airlines
Mon 5/11Thu 5/14
IAD - MDZ • 2 stops
Cheapest one-way
$365
Copa Airlines
Thu 8/6
IAD - MDZ • 1 stop
Top airlines
LATAM Airlines
Cheapest • from $827 (round-trip)
Copa Airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Mendoza. You'll need at least 1 connection.
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We hope you love your trip to Mendoza!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Mendoza (IAD-MDZ)

 
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 Mendoza 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 Mendoza

Mon, May 11 - Thu, May 14
LATAM Airlines Logo
1:32 pm - 7:03 pm
IAD
-
MDZ
28h 31m
2 stops
LATAM Airlines Logo
7:35 am - 9:16 am
MDZ
-
IAD
26h 41m
2 stops
$827LATAM Airlines
Thu, Sep 3 - Sat, Sep 12
Copa Airlines Logo
2:25 am - 12:22 am
IAD
-
MDZ
20h 57m
1 stop
Copa Airlines Logo
1:25 am - 4:20 am
MDZ
-
IAD
27h 55m
1 stop
$838Copa Airlines
Wed, Jul 1 - Wed, Jul 8
LATAM Airlines Logo
12:29 pm - 7:04 pm
IAD
-
MDZ
29h 35m
2 stops
LATAM Airlines Logo
7:50 pm - 7:15 pm
MDZ
-
IAD
24h 25m
2 stops
$866LATAM Airlines
Fri, Sep 4 - Sun, Sep 13
LATAM Airlines Logo
12:30 pm - 11:06 am
IAD
-
MDZ
21h 36m
2 stops
LATAM Airlines Logo
7:35 am - 12:10 am
MDZ
-
IAD
17h 35m
2 stops
$885LATAM Airlines
Fri, Sep 4 - Sun, Sep 13
LATAM Airlines Logo
7:50 pm - 6:20 am
IAD
-
MDZ
33h 30m
2 stops
LATAM Airlines Logo
7:35 am - 9:10 am
MDZ
-
IAD
26h 35m
2 stops
$926LATAM Airlines
Fri, Sep 4 - Sun, Sep 13
LATAM Airlines Logo
5:30 pm - 6:20 am
IAD
-
MDZ
35h 50m
2 stops
LATAM Airlines Logo
7:35 am - 2:44 pm
MDZ
-
IAD
32h 09m
2 stops
$934LATAM Airlines
Fri, Sep 4 - Sun, Sep 13
LATAM Airlines Logo
7:50 pm - 6:20 am
IAD
-
MDZ
33h 30m
2 stops
LATAM Airlines Logo
7:35 am - 12:10 am
MDZ
-
IAD
17h 35m
2 stops
$984LATAM Airlines
Sun, May 10 - Wed, May 13
LATAM Airlines Logo
12:37 pm - 6:20 am
IAD
-
MDZ
16h 43m
2 stops
LATAM Airlines Logo
7:50 pm - 6:53 pm
MDZ
-
IAD
24h 03m
2 stops
$1,113LATAM Airlines
Fri, Jun 5 - Fri, Jun 12
Multiple Airlines Logo
3:35 pm - 9:10 pm
IAD
-
MDZ
28h 35m
3 stops
Multiple Airlines Logo
11:51 am - 5:20 am
MDZ
-
IAD
18h 29m
2 stops
$1,191Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Copa Airlines Logo
6:25 am - 12:21 am
IAD
-
MDZ
16h 56m
1 stop
Copa Airlines Logo
1:25 am - 3:05 pm
MDZ
-
IAD
14h 40m
1 stop
$1,265Copa Airlines
Booking Insights

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

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

Which airlines provide the cheapest flights from Washington, D.C. to Mendoza?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Mendoza were found on LATAM Airlines ($827) and Copa Airlines ($838).

Find deals

Good to know

Low seasonAugust
Cheapest flight$365
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Washington, D.C. to Mendoza

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

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

  • What are the most common layover cities for flights from Washington, D.C. to Mendoza?

    Flights from Washington, DC to Mendoza include at least a single layover. Most flights include at least two layovers, with Copa Airlines offering the only single-layover flights from IAD to MDZ. The most common layover city is Panama City (PTY).

  • Which airlines offer kid-friendly amenities on flights from Washington, D.C. to Mendoza?

    When flying from IAS to MDZ with kids, consider booking your flight with Copa Airlines. Copa Airlines offers various family-friendly amenities. Families can benefit from priority boarding onboard, allowing them to settle in and organize their belongings. The airline provides bassinets for infants on a first-come, first-served basis and special children's meals catering to different dietary needs. Copa Airlines also offers a range of in-flight entertainment options, including movies, TV shows, and games suitable for all ages.

  • Can a minor fly alone from Washington, D.C. to Mendoza?

    United Airlines allows minors to fly unaccompanied from IAD to MDZ. The child must be between 5 and 14 years old to travel alone. Parents or guardians must make a reservation for the unaccompanied minor service and provide necessary information such as the child's full name, age, contact details, and the name, address, and phone number of the person picking them up at the destination. At check-in, the parent or guardian must present a valid government-issued photo ID, provide their contact information, and complete the required paperwork.

  • Are pets allowed on flights from Washington, D.C. to Mendoza?

    Copa Airlines allows small pets to travel in-cabin with their owners. The pet must be transported in an IATA-approved pet carrier that fits under the seat in front of you. The carrier dimensions must not exceed 17.5 × 12 x 8 inches. The combined weight of the pet and carrier should not exceed 22 lbs. Only dogs and cats are accepted as in-cabin pets on Copa Airlines flights.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Mendoza was $365 for a one-way ticket and $827 for a round-trip.

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

    Yes

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

    When flying out of Washington, D.C. you will be using Washington, D.C. Dulles Intl. You will be landing at Mendoza, also known as Mendoza El Plumerillo.

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

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

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

    Star Alliance is the only airline alliance operating flights between Washington, D.C. and Mendoza.

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

    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 Mendoza.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Mendoza 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 Mendoza?

    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 Mendoza with an airline and back to Washington, D.C. with another airline. Booking your flights between Washington, D.C. and MDZ 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, D.C. to Mendoza?

    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 Mendoza from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Mendoza

  • Washington Dulles International Airport (IAD) provides accessible services to passengers with limited mobility. These services include wheelchair assistance and accessible restrooms throughout the airport. Additionally, IAD provides visual and auditory aids for individuals with visual or hearing impairments.
  • Public transport is available from Mendoza Airport (MDZ) to Downtown Mendoza. The city center is conveniently connected to the airport through bus route 60, accessed from the main access area. Taxis are also available curbside.
  • Copa Airlines, LATAM, United, and Avianca offer business class flights from IAD to MDZ. In business class, you can enjoy enhanced comfort with spacious seating, priority boarding, and access to airport lounges. Gourmet meals, fine wines, entertainment systems, and amenity kits are provided to ensure a premium travel experience.
  • US citizens traveling to Mendoza, Argentina, will need a valid passport to enter the country. However, US citizens are not required to obtain a visa for tourist visits of up to 90 days in Argentina.
  • When traveling on Copa Airlines from Washington Dulles International Airport (IAD) to Mendoza (MDZ), you are allowed to one in-cabin bag and a personal item. The maximum total dimensions for the in-cabin bag, including handles and wheels, should not exceed 46 linear inches. Additionally, the weight of the in-cabin bag must not exceed 22 lbs.

Reviews of the top airline flying from Washington, D.C. to Mendoza

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Mendoza. 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 Mendoza? 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 1580 reviews
6.8Entertainment
7.8Boarding
6.8Food
8.1Crew
7.4Comfort
Airline reviews

Avoid at all costs. My wife had to stay back on a connecting flight as her parents flight was delayed. 10 days later on the way back they cancelled all our flights. We had to rebook all four of us on the next days flight.

2.0 MediocreDaniel, Mar 2026
DAV - PTY
Read more Copa Airlines reviews

Avoid at all costs. My wife had to stay back on a connecting flight as her parents flight was delayed. 10 days later on the way back they cancelled all our flights. We had to rebook all four of us on the next days flight.

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

Seats were awful. Media should have been included for such a long flight.

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.

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

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.

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

Information on your arrival and departure airports

Washington, D.C. (IAD)
Mendoza (MDZ)