How long is the flight from Helena to Buenos Aires?

Departing from Helena to Buenos Aires will take you 21h 45m. Helena and Buenos Aires are separated by a distance of 6527 mi. This flight may include one or multiple stops.

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

Currently, April is the cheapest month in which you can book a flight from Helena to Buenos Aires (average of $795). Flying from Helena to Buenos Aires in December is currently the most expensive (average of $1,260). 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 day to fly from Helena to Buenos Aires?

Travelers seeking maximum savings on their Helena to Buenos Aires flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

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

When flying from Helena 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.

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

If you book a flight to Buenos Aires from Helena, you will be flying from Helena, which is the city’s only airport. Helena (HLN) is located 2.7 mi from the center of Helena. There are 0 flights from Helena to Buenos Aires per day from 0 different airlines.

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

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

How can I find direct flights from Helena to Buenos Aires?

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

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

Yes. Cheapflights offers flight deals from Helena 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.

$571+ Flights from Helena to Buenos Aires

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Cheap flight deals from Helena to Buenos Aires

Round-trip from	$1,304 (Delta)
One-way from	$571 (Kiwi.com)

From Helena to Buenos Aires (BUE)

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One-way flight from Helena to Buenos Aires (BUE)

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Find flight deals from Helena to Buenos Aires

Cheapest flights from Helena to Buenos Aires
Explore the most affordable flight options available from Helena to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Mon 12/81:06 pmHLN - EZE

2 stops36h 59mDelta

Fri 12/128:00 amEZE - HLN

2 stops18h 30mDelta

Deal found 9/15

$1,465

Tue 10/142:44 pmHLN - EZE

2 stops38h 16mUnited Airlines

Tue 10/219:00 pmEZE - HLN

2 stops27h 00mUnited Airlines

Deal found 9/14

$1,542

Best flights from Helena to Buenos Aires
Discover carefully curated flight deals from Helena to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2025.

Tue 1/135:35 amHLN - EZE

2 stops21h 45mDelta

Fri 1/3010:25 pmEZE - HLN

2 stops42h 02mDelta

Deal found 9/17

$1,304

Mon 1/126:15 amHLN - EZE

2 stops23h 05mUnited Airlines

Fri 1/3011:55 pmEZE - HLN

2 stops25h 31mUnited Airlines

Deal found 9/17

$1,330

Wed 1/146:15 amHLN - EZE

2 stops21h 05mUnited Airlines

Fri 1/3011:55 pmEZE - HLN

2 stops25h 31mUnited Airlines

Deal found 9/17

$1,330

Mon 12/81:06 pmHLN - EZE

2 stops36h 59mDelta

Fri 12/128:00 amEZE - HLN

2 stops18h 30mDelta

Deal found 9/15

$1,465

Tue 10/142:44 pmHLN - EZE

2 stops38h 16mUnited Airlines

Tue 10/219:00 pmEZE - HLN

2 stops27h 00mUnited Airlines

Deal found 9/14

$1,542

Wed 1/145:35 amHLN - EZE

2 stops21h 45mDelta

Sat 1/3111:55 pmEZE - HLN

2 stops26h 43mDelta

Deal found 9/17

$5,128

Last-minute flights from Helena to Buenos Aires
Discover last-minute flight deals from Helena to Buenos Aires. Data last updated September 17, 2025 and is based on user searches.

Tue 10/142:44 pmHLN - EZE

2 stops38h 16mUnited Airlines

Tue 10/219:00 pmEZE - HLN

2 stops27h 00mUnited Airlines

Deal found 9/14

$1,542

One-way flights from Helena to Buenos Aires
Search for one-way flight options from Helena to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Sat 11/86:13 pmHLN - EZE

3 stops44h 30mMultiple Airlines

Deal found 9/15

$571

Sat 11/86:40 amHLN - EZE

2 stops20h 40mUnited Airlines

Deal found 9/15

$688

Cheapflights Fare Finder

Use the filters below to find and compare flights from Helena to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Tue 1/13

5:35 am-7:20 am

2 stops21h 45m

Buenos Aires Ministro Pistarini

Fri 1/30

10:25 pm-12:27 pm

2 stops42h 02m

$1,304

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Mon 1/12

6:15 am-9:20 am

2 stops23h 05m

Buenos Aires Ministro Pistarini

Fri 1/30

11:55 pm-9:26 pm

2 stops25h 31m

$1,330

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Wed 1/14

6:15 am-7:20 am

2 stops21h 05m

Buenos Aires Ministro Pistarini

Fri 1/30

11:55 pm-9:26 pm

2 stops25h 31m

$1,330

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Mon 12/8

1:06 pm-6:05 am

2 stops36h 59m

Buenos Aires Ministro Pistarini

Fri 12/12

8:00 am-10:30 pm

2 stops18h 30m

$1,465

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Tue 10/14

2:44 pm-8:00 am

2 stops38h 16m

Buenos Aires Ministro Pistarini

Tue 10/21

9:00 pm-9:00 pm

2 stops27h 00m

$1,542

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Wed 1/14

5:35 am-7:20 am

2 stops21h 45m

Buenos Aires Ministro Pistarini

Sat 1/31

11:55 pm-10:38 pm

2 stops26h 43m

$5,128

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Sat 11/8

6:13 pm-6:43 pm

3 stops44h 30m

$571

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Sat 11/8

6:40 am-7:20 am

2 stops20h 40m

$688

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Helena to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Helena 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 Helena to Buenos Aires

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from Helena to Buenos Aires?
If you book a flight to Buenos Aires from Helena, you will be flying from Helena, which is the city’s only airport. Helena (HLN) is located 2.7 mi from the center of Helena. There are 0 flights from Helena to Buenos Aires per day from 0 different airlines.
How long is the flight from Helena to Buenos Aires?
Departing from Helena to Buenos Aires will take you 21h 45m. Helena and Buenos Aires are separated by a distance of 6527 mi. This flight may include one or multiple stops.
Can I find deals for flights from Helena to Buenos Aires that include hotel bookings?
Yes. In addition to deals on Helena to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Helena to Buenos Aires?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to Buenos Aires.
Can I find deals for business class flights from Helena to Buenos Aires?
Yes. Cheapflights offers flight deals from Helena 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 Helena to Buenos Aires?
Currently, April is the cheapest month in which you can book a flight from Helena to Buenos Aires (average of $795). Flying from Helena to Buenos Aires in December is currently the most expensive (average of $1,260). 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.

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$571+ Cheap flights from Helena (HLN) 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Helena to Buenos Aires with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Helena to Buenos Aires

Round-trip from

One-way from

Find flight deals from Helena to Buenos Aires

Cheapest flights from Helena to Buenos AiresExplore the most affordable flight options available from Helena to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Explore the most affordable flight options available from Helena to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Helena to Buenos Aires that are best for you.

Best time to book a flight from Helena to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Helena with our price prediction graph.

Cheapflights Insights

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

Related info for your journey

Find useful and relevant information for your journey from Helena 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 Helena to Buenos Aires?

How long is the flight from Helena to Buenos Aires?

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

How can I find direct flights from Helena to Buenos Aires?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Helena to Buenos Aires

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Cheapest flights from Helena to Buenos Aires
Explore the most affordable flight options available from Helena to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.