IAD - MDZ

$288 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 1/1. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Fri, Nov 14 - Mon, Nov 24
LATAM Airlines Logo
12:11 pm - 6:45 pmIAD-MDZ
28h 34m2 stops
LATAM Airlines Logo
7:50 am - 9:10 amMDZ-IAD
27h 20m2 stops
$639LATAM Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 10
LATAM Airlines Logo
12:09 pm - 6:45 pmIAD-MDZ
29h 36m2 stops
LATAM Airlines Logo
7:50 am - 12:18 amMDZ-IAD
18h 28m2 stops
$659LATAM Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 10
LATAM Airlines Logo
7:59 pm - 6:45 pmIAD-MDZ
21h 46m2 stops
LATAM Airlines Logo
7:50 am - 12:18 amMDZ-IAD
18h 28m2 stops
$665LATAM Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 9
LATAM Airlines Logo
7:59 pm - 6:45 pmIAD-MDZ
21h 46m2 stops
LATAM Airlines Logo
7:55 pm - 11:31 amMDZ-IAD
17h 36m2 stops
$686LATAM Airlines
Find Deal
Wed, Oct 15 - Sun, Oct 26
Copa Airlines Logo
2:25 am - 12:09 amIAD-MDZ
20h 44m1 stop
Copa Airlines Logo
1:25 am - 3:05 pmMDZ-IAD
14h 40m1 stop
$747Copa Airlines
Find Deal
Thu, Oct 30 - Sun, Nov 9
Copa Airlines Logo
2:25 am - 12:14 amIAD-MDZ
20h 49m1 stop
Copa Airlines Logo
1:17 am - 2:02 pmMDZ-IAD
14h 45m1 stop
$797Copa Airlines
Find Deal
Thu, Oct 16 - Mon, Oct 27
Logo
5:05 pm - 8:10 pmIAD-MDZ
26h 05m3 stops
Logo
3:40 pm - 3:55 pmMDZ-IAD
25h 15m3 stops
$800
Find Deal
Thu, Oct 16 - Mon, Oct 27
Logo
5:05 pm - 8:10 pmIAD-MDZ
26h 05m3 stops
Logo
9:00 pm - 5:25 amMDZ-IAD
33h 25m2 stops
$881
Find Deal
Fri, Nov 7 - Tue, Nov 11
American Airlines Logo
5:27 pm - 9:35 pmIAD-MDZ
50h 08m2 stops
American Airlines Logo
2:20 pm - 4:11 pmMDZ-IAD
27h 51m2 stops
$1,006American Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
American Airlines Logo
5:27 pm - 9:35 pmIAD-MDZ
50h 08m2 stops
American Airlines Logo
2:20 pm - 4:11 pmMDZ-IAD
27h 51m2 stops
$1,066American Airlines
Find Deal
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 ($639) and Copa Airlines ($747).

Find deals

Good to know

Cheapest flight$288
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 $288 for a one-way ticket and $639 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, and oneworld are the airline alliances operating flights between Washington, D.C. and Mendoza, with oneworld being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Mendoza are LATAM Airlines and Copa Airlines. With an average price for the route of $897 and an overall rating of 7.5, LATAM Airlines is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $1,488 and an overall rating of 7.5.

  • 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 airlines 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
LATAM AirlinesOverall score based on 1841 reviews
7.4Comfort
8.0Crew
7.6Boarding
6.7Food
7.0Entertainment
Airline reviews

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

2.0 MediocreAnonymous, Aug 2025GIG - GRU
Read more LATAM Airlines reviews

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

Boarding was done by woman who insisted on strict standing in line policy; food was ok; entertainment minimal

Wider seats, better seat cushions, (I felt like there was a board I was sitting on). I had the chicken to eat but It neither tasted nor looked like chicken. The fruit was good.

I was in the last row and they sent me to check in my luggage last minute after boarding. I had to go through the crowd.

I travel often with LATAM, it never disappoints me. The service is great, nice crew, latest and some classic movies. I got 3 small meals, cannot complaint. I’ll definitely travel again with them.

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

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

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.

Seats not reclining, no vegetarian food option, no snacks. 7.5 hr flight should have been more comfortable. Luggage limits are unusually small. Will never fly Copa again and will tell friends and family to avoid this airline.

It was ok. However, the food was quite poor since I don't eat pasta.

Placed us in the last rear row of the plane so could not recline seats because of the rear wall, and also made it more of a tight space when the passenger in front reclined their seat. While understand seat assignments, every passenger should be afforded a reclining seat. The odor control scent from the restrooms was overwhelming strong. My wife and I could not deal with it, and she suffered a terrible headache as a result. I kept getting hit by the crew since I was on the ilse seat. No apologies, nothing. They made me feel like I was supposed to take the beating for a 3 hr flight.

There was no individual at the front check in when I arrived. I waited for at least 15 minutes and walked around asking security/janitors if they could help and they did not have a solution. So I had to take my checked bag through security and they threw away some of my items. I ended up making it to the gate only a few minutes before it closed due to my waiting for an agent at check in.

The flight was delayed twice and I could not speak with anyone at the airport about checking in. The phone number to Copa - the customer service agents were polite. They are just limited at helping because they are not at the airport

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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.