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$217+ Cheap flights from Quito (UIO) to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
UIO — BUE
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
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Cheapflights Tip: The best prices from Quito Mariscal Sucr to Buenos Aires are usually found in March or September, booked 62 days in advance, depart on a Tuesday or Sunday and return on a Wednesday

Cheap flight deals from Quito to Buenos Aires

Cheapest flights from Quito to Buenos Aires
Explore the most affordable flight options available from Quito to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2025.

This Booking.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:00 pmUIO - EZE
1 stop9h 50mMultiple Airlines
Fri 2/612:15 pmEZE - UIO
2 stops24h 50mMultiple Airlines
Deal found 12/2$557
This Copa Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:10 amUIO - EZE
1 stop19h 48mCopa Airlines
Fri 2/202:48 pmEZE - UIO
1 stop11h 43mCopa Airlines
Deal found 12/2$593
This FlightHub deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:15 pmUIO - EZE
1 stop11h 35mAvianca
Fri 2/64:55 pmEZE - UIO
Nonstop10h 25mAvianca
Deal found 12/2$624
This Booking.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:49 pmUIO - AEP
1 stop9h 31mMultiple Airlines
Wed 12/319:05 pmAEP - UIO
2 stops13h 16mMultiple Airlines
Deal found 12/2$633
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:49 pmUIO - AEP
1 stop9h 31mJetSMART
Wed 12/315:20 amAEP - UIO
1 stop12h 40mJetSMART
Deal found 12/2$646
This CheapOair deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:15 pmUIO - EZE
1 stop16h 05mMultiple Airlines
Mon 1/1910:10 pmEZE - UIO
2 stops43h 50mMultiple Airlines
Deal found 12/1$647
This Mytrip deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:15 pmUIO - EZE
1 stop12h 35mLATAM Airlines
Wed 12/317:43 pmEZE - UIO
2 stops22h 07mLATAM Airlines
Deal found 12/2$653
This Priceline deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:15 pmUIO - EZE
Nonstop5h 55mAvianca
Thu 12/117:30 amEZE - UIO
1 stop12h 25mAvianca
Deal found 12/2$659
This CheapOair deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/194:49 pmUIO - EZE
2 stops18h 59mJetSMART
Mon 1/1910:10 pmEZE - UIO
2 stops43h 50mJetSMART
Deal found 12/1$668
This Priceline deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:15 pmUIO - EZE
Nonstop5h 55mAvianca
Fri 12/127:30 amEZE - UIO
1 stop19h 50mAvianca
Deal found 12/2$670
This Kiwi.com deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/174:49 pmUIO - AEP
1 stop9h 31mMultiple Airlines
Sun 12/219:00 pmAEP - UIO
2 stops32h 20mMultiple Airlines
Deal found 12/1$686
This JetSMART deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetSMART is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/124:49 pmUIO - AEP
2 stops40h 31mJetSMART
Thu 1/1510:10 pmAEP - UIO
2 stops19h 50mJetSMART
Deal found 12/2$693

Find flight deals from Quito to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Quito (UIO) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$406
(CheapOair)

One-way from

$217
(FlightHub)

Popular in

December

Cheapest in

March

Average price

$630

Good round-trip deal

$628 or less

Good one-way deal

$346 or less
Provider with most accurate pricing for Quito Mariscal Sucr-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Quito Mariscal Sucr-Buenos Aires (BUE) flights.
Search Deals
From Quito Mariscal Sucr to Buenos Aires (BUE)
Search Deals
One-way flight from Quito Mariscal Sucr to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Quito Mariscal Sucr to Buenos Aires (BUE).
Search Deals
Price to beat on a one-way flight from Quito Mariscal Sucr to Buenos Aires (BUE).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Quito to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 2, 2025.
Use the filters below to find and compare flights from Quito to Buenos Aires that are best for you.

Fly from

Quito

Fly to

Buenos Aires

Route

Depart

Return

Price

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Wed 3/25

4:49 pm-6:40 pm

2 stops23h 51m

Buenos Aires Jorge Newbery

Sat 3/28

4:30 pm-4:00 pm

2 stops25h 30m

$416

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Fri 4/3

4:41 pm-4:20 am

1 stop9h 39m

Buenos Aires Jorge Newbery

Fri 4/10

5:15 am-3:54 pm

1 stop12h 39m

$422

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Fri 4/3

4:41 pm-4:20 am

1 stop9h 39m

Buenos Aires Jorge Newbery

Wed 4/15

5:15 am-3:54 pm

1 stop12h 39m

$424

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Fri 3/20

4:49 pm-3:20 pm

2 stops20h 31m

Buenos Aires Jorge Newbery

Sat 3/28

4:30 pm-4:00 pm

2 stops25h 30m

$439

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Sun 3/15

4:49 pm-11:20 am

2 stops16h 31m

Buenos Aires Jorge Newbery

Tue 3/24

10:10 pm-4:00 pm

2 stops19h 50m

$446

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Sun 3/22

4:49 pm-4:20 am

1 stop9h 31m

Buenos Aires Jorge Newbery

Sun 3/29

5:15 am-4:00 pm

1 stop12h 45m

$460

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Fri 5/1

4:41 pm-11:20 am

2 stops16h 39m

Buenos Aires Jorge Newbery

Tue 5/5

7:06 pm-3:54 pm

2 stops22h 48m

$461

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Sun 3/15

4:49 pm-4:20 am

1 stop9h 31m

Buenos Aires Jorge Newbery

Sun 3/22

5:15 am-4:00 pm

1 stop12h 45m

$474

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Wed 4/1

4:41 pm-4:20 am

1 stop9h 39m

Buenos Aires Jorge Newbery

Fri 4/10

5:15 am-3:54 pm

1 stop12h 39m

$478

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Fri 3/13

4:49 pm-4:20 am

1 stop9h 31m

Buenos Aires Jorge Newbery

Sun 3/22

5:15 am-4:00 pm

1 stop12h 45m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 39 results
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Compare providers for flights from Quito to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Quito to Buenos Aires in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Quito-Buenos Aires flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Quito-Buenos Aires flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Quito-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Quito-Buenos Aires flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Quito-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Quito to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Quito with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Quito to Buenos Aires

How far ahead should I book a flight from Quito to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Quito to Buenos Aires. Price data was last updated on November 28, 2025.

The price you pay for your flight from Quito to Buenos Aires may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Quito to Buenos Aires?

Currently, May is the cheapest month in which you can book a flight from Quito to Buenos Aires (average of $229). Flying from Quito to Buenos Aires in February is currently the most expensive (average of $306). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from UIO to BUE?

Find hourly flight availability from Quito to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 2, 2025.

When flying from Quito to Buenos Aires, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 27% versus a flight at noon.

Weekly flight availability from Quito to Buenos Aires

Explore weekly flight availability from Quito to Buenos Aires. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 2, 2025.

The most flights from UIO to BUE are scheduled on a Monday (3 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Quito to Buenos Aires?

How often are flights from Quito to Buenos Aires delayed?

About 9% of weekly flights between Quito and Buenos Aires have experienced delays in the past year, with the average delay time being 147 minutes.

What is the most punctual flight time for Quito to Buenos Aires flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Quito to Buenos Aires flights?

Over the last year, Avianca have had the lowest number of delays on this route, with just 9% of flights being delayed.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated December 2, 2025.
Read through reviews of airlines operating flights from Quito to Buenos Aires, such as Copa Airlines, LATAM Airlines, and Avianca. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,560 reviews

Food

6.9

Crew

8.1

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
Copa Airlines
7.6
Good
1,560 reviews
Copa Airlines
7.6
Good
1,560 reviews

Food

6.9

Crew

8.1

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
LATAM Airlines
7.5
Good
1,889 reviews
Copa Airlines
7.6
Good
1,560 reviews

Food

6.9

Crew

8.1

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
Avianca
6.6
Okay
2,475 reviews
Copa Airlines
7.6
Good
1,560 reviews

Food

6.9

Crew

8.1

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
JetSMART
6.6
Okay
249 reviews
Copa Airlines
7.6
Good
1,560 reviews

Food

6.9

Crew

8.1

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.

Related info for your journey

Find useful and relevant information for your journey from Quito to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Quito to Buenos Aires?

    For a flight from Quito to Buenos Aires, you will be flying from Mariscal Sucr. Quito Mariscal Sucr (UIO) is just 14.0 mi from the center of the city. Mariscal Sucr is the only Quito airport and it handles 2 outbound flights to Buenos Aires per day. 2 airlines have flights to Buenos Aires from Quito Mariscal Sucr on a regular basis.

  • How long is the flight from Quito to Buenos Aires?

    For as low as $482, JetSMART can have you in Buenos Aires from Quito in 5h 55m. The distance from Quito to Buenos Aires is about 2716 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Quito to Buenos Aires round-trip?

    According to our current data, LATAM Airlines ($298), and Avianca ($514) offers the cheapest pricing from Quito to Buenos Aires. LATAM Airlines is priced at 49% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Quito to Buenos Aires?

    No one likes to see their flight delayed. When booking a flight from Quito to Buenos Aires consider choosing Avianca Costa Rica (64%), Avianca (61%) or Avianca Ecuador (58%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Quito to Buenos Aires?

    On average you can expect to pay $504 for a flight from Quito to Buenos Aires. The cheapest flight overall is $344 while the most popular route, (Quito Mariscal Sucr - Buenos Aires Ministro Pistarini) is currently priced at $406.

  • Can I find deals for flights from Quito to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Quito to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Quito to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Quito to Buenos Aires.

  • Can I find deals for business class flights from Quito to Buenos Aires?

    Yes. Cheapflights offers flight deals from Quito to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Quito to Buenos Aires?

    Currently, May is the cheapest month in which you can book a flight from Quito to Buenos Aires (average of $229). Flying from Quito to Buenos Aires in February is currently the most expensive (average of $306). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Quito to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Guayaquil to Ministro Pistarini flights
Quito to Ministro Pistarini flights
Quito to Jorge Newbery flights

Top 2 airlines flying from Quito to Buenos Aires

Discover the top 2 airlines that operate flights from Quito to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$301Average$610FlexibilityNo cancel feeOn-time81%
AviancaCheapest$514Average$658FlexibilityNo cancel feeOn-time71%

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