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$292+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
UIO — BUE
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Quito Mariscal Sucr to Buenos Aires are usually found in August 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 January 29, 2026.

This Avianca deal was found by Cheapflights users on 1/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:25 pm
UIO
-
EZE
1 stop9h 40m
Avianca
Mon 4/204:50 pm
EZE
-
UIO
Nonstop10h 25m
Avianca
Deal found 1/28$429
This Priceline deal was found by Cheapflights users on 1/28. 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.
Thu 4/166:20 pm
UIO
-
EZE
1 stop8h 45m
Avianca
Tue 4/216:10 am
EZE
-
UIO
Nonstop6h 15m
Avianca
Deal found 1/28$430
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 4/84:49 pm
UIO
-
AEP
1 stop9h 42m
JetSMART
Fri 4/175:27 am
AEP
-
UIO
1 stop12h 37m
JetSMART
Deal found 1/28$431
This Booking.com deal was found by Cheapflights users on 1/27. 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.
Mon 4/279:20 am
UIO
-
EZE
2 stops18h 20m
Avianca
Wed 5/67:10 am
EZE
-
UIO
1 stop12h 30m
Avianca
Deal found 1/27$437
This Avianca deal was found by Cheapflights users on 1/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/253:30 am
UIO
-
EZE
1 stop10h 20m
Avianca
Thu 4/27:10 am
EZE
-
UIO
1 stop12h 30m
Avianca
Deal found 1/28$438
This Avianca deal was found by Cheapflights users on 1/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/259:15 pm
UIO
-
EZE
Nonstop5h 55m
Avianca
Tue 3/316:10 am
EZE
-
UIO
Nonstop6h 15m
Avianca
Deal found 1/28$439
This Priceline deal was found by Cheapflights users on 1/28. 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.
Tue 4/73:30 am
UIO
-
EZE
1 stop10h 10m
Avianca
Fri 4/177:10 am
EZE
-
UIO
1 stop12h 30m
Avianca
Deal found 1/28$440
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Fri 4/174:49 pm
UIO
-
AEP
1 stop9h 42m
JetSMART
Wed 4/225:27 am
AEP
-
UIO
1 stop12h 37m
JetSMART
Deal found 1/28$448
This Avianca deal was found by Cheapflights users on 1/27. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:40 pm
UIO
-
EZE
1 stop10h 25m
Avianca
Wed 5/67:10 am
EZE
-
UIO
2 stops12h 25m
Avianca
Deal found 1/27$448
This FlightHub deal was found by Cheapflights users on 1/28. 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.
Fri 3/204:49 pm
UIO
-
AEP
1 stop9h 31m
JetSMART
Wed 3/255:15 am
AEP
-
UIO
1 stop12h 45m
JetSMART
Deal found 1/28$452
This Avianca deal was found by Cheapflights users on 1/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 pm
UIO
-
EZE
1 stop10h 05m
Avianca
Sat 5/307:10 am
EZE
-
UIO
2 stops12h 05m
Avianca
Deal found 1/28$452
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Sat 4/256:20 pm
UIO
-
EZE
1 stop8h 45m
Avianca
Mon 5/254:50 pm
EZE
-
UIO
1 stop10h 25m
Avianca
Deal found 1/27$457

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$429
(Avianca)

One-way from

$292
(JetSMART)

Popular in

February

Cheapest in

August

Average price

$594

Good round-trip deal

$596 or less

Good one-way deal

$334 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. 1% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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 4/8

4:49 pm-4:31 am

1 stop9h 42m

Buenos Aires Jorge Newbery

Fri 4/17

5:27 am-4:04 pm

1 stop12h 37m

$431

QuitoBuenos Aires

UIO - EZE

UIOEZE

Quito Mariscal Sucr

Wed 3/25

3:30 am-3:50 pm

1 stop10h 20m

Buenos Aires Ministro Pistarini

Thu 4/2

7:10 am-5:40 pm

1 stop12h 30m

$438

QuitoBuenos Aires

UIO - EZE

UIOEZE

Quito Mariscal Sucr

Wed 4/8

3:30 am-3:40 pm

1 stop10h 10m

Buenos Aires Ministro Pistarini

Mon 4/20

6:10 am-10:25 am

Nonstop6h 15m

$440

QuitoBuenos Aires

UIO - EZE

UIOEZE

Quito Mariscal Sucr

Wed 3/25

7:05 pm-3:50 pm

1 stop18h 45m

Buenos Aires Ministro Pistarini

Tue 3/31

7:10 am-11:40 pm

1 stop18h 30m

$440

QuitoBuenos Aires

UIO - EZE

UIOEZE

Quito Mariscal Sucr

Mon 4/27

10:10 am-12:25 am

1 stop12h 15m

Buenos Aires Ministro Pistarini

Wed 5/6

4:50 pm-1:15 am

Nonstop10h 25m

$440

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Fri 3/20

4:49 pm-4:20 am

1 stop9h 31m

Buenos Aires Jorge Newbery

Wed 3/25

5:15 am-4:00 pm

1 stop12h 45m

$453

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Wed 5/6

4:49 pm-4:31 am

1 stop9h 42m

Buenos Aires Jorge Newbery

Wed 5/13

5:27 am-4:04 pm

1 stop12h 37m

$453

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Fri 3/20

4:49 pm-4:20 am

1 stop9h 31m

Buenos Aires Jorge Newbery

Fri 3/27

5:15 am-4:00 pm

1 stop12h 45m

$453

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Sun 3/22

4:49 pm-4:20 am

1 stop9h 31m

Buenos Aires Jorge Newbery

Wed 3/25

5:15 am-4:00 pm

1 stop12h 45m

$453

QuitoBuenos Aires

UIO - AEP

UIOAEP

Quito Mariscal Sucr

Sun 3/22

4:49 pm-4:20 am

1 stop9h 31m

Buenos Aires Jorge Newbery

Fri 3/27

5:15 am-4:00 pm

1 stop12h 45m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 35 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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Quito-Buenos Aires flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

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 $203). Flying from Quito to Buenos Aires in January is currently the most expensive (average of $322). 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 January 29, 2026.

When flying from Quito to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 January 29, 2026.

The most flights from UIO to BUE are scheduled on a Wednesday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 145 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?

Sunday 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 January 29, 2026.
Read through reviews of airlines operating flights from Quito to Buenos Aires, such as LATAM Airlines, Copa Airlines, and JetSMART. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,918 reviews

Comfort

7.3

Crew

8.0

Boarding

7.5

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
LATAM Airlines
7.5
Good
1,918 reviews
LATAM Airlines
7.5
Good
1,918 reviews

Comfort

7.3

Crew

8.0

Boarding

7.5

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
Copa Airlines
7.5
Good
1,560 reviews
LATAM Airlines
7.5
Good
1,918 reviews

Comfort

7.3

Crew

8.0

Boarding

7.5

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
JetSMART
6.7
Okay
263 reviews
LATAM Airlines
7.5
Good
1,918 reviews

Comfort

7.3

Crew

8.0

Boarding

7.5

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
Avianca
6.6
Okay
2,492 reviews
LATAM Airlines
7.5
Good
1,918 reviews

Comfort

7.3

Crew

8.0

Boarding

7.5

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

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 $431, JetSMART can have you in Buenos Aires from Quito in 9h 42m. The distance from Quito to Buenos Aires is about 2704 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 ($488), and Avianca ($514) offers the cheapest pricing from Quito to Buenos Aires. LATAM Airlines is priced at 17% lower than the current average price of a flight leaving 3 months from now.

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

    On average you can expect to pay $501 for a flight from Quito to Buenos Aires. The cheapest flight overall is $298 while the most popular route, (Quito Mariscal Sucr - Buenos Aires Ministro Pistarini) is currently priced at $438.

  • 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 $203). Flying from Quito to Buenos Aires in January is currently the most expensive (average of $322). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$488Average$632FlexibilityNo cancel feeOn-time81%
AviancaCheapest$514Average$656FlexibilityNo cancel feeOn-time71%

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