How long is the flight from Helena to Buenos Aires?

Departing from Helena to Buenos Aires will take you 23h 30m. Helena and Buenos Aires are separated by a distance of 6527 mi.

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.

Most accurate provider : When it comes to deals on Helena-Buenos Aires flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Helena-Buenos Aires flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Helena-Buenos Aires flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Helena-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 Helena-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$1,410+ Flights from Helena to Buenos Aires

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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 October 30, 2025.

Mon 12/85:30 amHLN - EZE

2 stops23h 30mDelta

Fri 12/128:55 pmEZE - HLN

2 stops29h 35mDelta

Deal found 10/28

$1,470

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 October 30, 2025.

Mon 1/125:30 amHLN - EZE

2 stops23h 30mDelta

Tue 2/38:55 pmEZE - HLN

2 stops29h 34mDelta

Deal found 10/30

$1,410

Tue 1/136:15 amHLN - EZE

2 stops21h 05mUnited Airlines

Thu 2/510:05 pmEZE - HLN

2 stops27h 21mUnited Airlines

Deal found 10/30

$1,410

Mon 1/125:30 amHLN - EZE

2 stops24h 45mDelta

Wed 2/48:55 pmEZE - HLN

2 stops29h 34mDelta

Deal found 10/30

$1,410

Sat 1/102:27 pmHLN - EZE

2 stops60h 53mUnited Airlines

Wed 2/411:55 pmEZE - HLN

2 stops25h 31mUnited Airlines

Deal found 10/30

$1,431

Tue 1/135:30 amHLN - EZE

2 stops21h 50mDelta

Thu 2/511:55 pmEZE - HLN

2 stops26h 34mDelta

Deal found 10/30

$1,410

Thu 1/155:30 amHLN - EZE

2 stops23h 30mDelta

Wed 2/48:55 pmEZE - HLN

2 stops29h 34mDelta

Deal found 10/30

$1,410

Tue 1/135:30 amHLN - EZE

2 stops24h 45mDelta

Tue 2/38:55 pmEZE - HLN

2 stops29h 34mDelta

Deal found 10/30

$1,410

Wed 1/145:30 amHLN - EZE

2 stops23h 30mDelta

Wed 2/48:55 pmEZE - HLN

2 stops29h 34mDelta

Deal found 10/30

$1,410

Wed 1/145:30 amHLN - EZE

2 stops24h 45mDelta

Thu 2/511:55 pmEZE - HLN

2 stops26h 34mDelta

Deal found 10/30

$1,410

Thu 1/155:30 amHLN - EZE

2 stops23h 30mDelta

Thu 2/511:55 pmEZE - HLN

2 stops26h 34mDelta

Deal found 10/30

$1,410

Mon 1/125:30 amHLN - EZE

2 stops24h 45mDelta

Mon 2/28:55 pmEZE - HLN

2 stops29h 34mDelta

Deal found 10/30

$1,410

Mon 1/125:30 amHLN - EZE

2 stops24h 45mDelta

Thu 2/511:55 pmEZE - HLN

2 stops26h 34mDelta

Deal found 10/30

$1,410

Cheap flight deals from Helena to Buenos Aires

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,410 (United Airlines)

Provider with most accurate pricing for Helena-Buenos Aires (BUE) flight deals.

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Provider most trusted by Cheapflights users for Helena-Buenos Aires (BUE) flights.

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From Helena to Buenos Aires (BUE)

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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

Mon 1/12

5:30 am-9:00 am

2 stops23h 30m

Buenos Aires Ministro Pistarini

Tue 2/3

8:55 pm-10:29 pm

2 stops29h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Tue 1/13

6:15 am-7:20 am

2 stops21h 05m

Buenos Aires Ministro Pistarini

Thu 2/5

10:05 pm-9:26 pm

2 stops27h 21m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Mon 1/12

5:30 am-10:15 am

2 stops24h 45m

Buenos Aires Ministro Pistarini

Wed 2/4

8:55 pm-10:29 pm

2 stops29h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Tue 1/13

5:30 am-7:20 am

2 stops21h 50m

Buenos Aires Ministro Pistarini

Thu 2/5

11:55 pm-10:29 pm

2 stops26h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Thu 1/15

5:30 am-9:00 am

2 stops23h 30m

Buenos Aires Ministro Pistarini

Wed 2/4

8:55 pm-10:29 pm

2 stops29h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Tue 1/13

5:30 am-10:15 am

2 stops24h 45m

Buenos Aires Ministro Pistarini

Tue 2/3

8:55 pm-10:29 pm

2 stops29h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Wed 1/14

5:30 am-9:00 am

2 stops23h 30m

Buenos Aires Ministro Pistarini

Wed 2/4

8:55 pm-10:29 pm

2 stops29h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Wed 1/14

5:30 am-10:15 am

2 stops24h 45m

Buenos Aires Ministro Pistarini

Thu 2/5

11:55 pm-10:29 pm

2 stops26h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Thu 1/15

5:30 am-9:00 am

2 stops23h 30m

Buenos Aires Ministro Pistarini

Thu 2/5

11:55 pm-10:29 pm

2 stops26h 34m

$1,410

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Mon 1/12

5:30 am-10:15 am

2 stops24h 45m

Buenos Aires Ministro Pistarini

Mon 2/2

8:55 pm-10:29 pm

2 stops29h 34m

$1,410

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 12 results

Most accurate provider: When it comes to deals on Helena-Buenos Aires flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Helena-Buenos Aires flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Helena-Buenos Aires flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Helena-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 Helena-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 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 23h 30m. Helena and Buenos Aires are separated by a distance of 6527 mi.
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.

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$1,410+ Cheap flights from Helena (HLN) to Buenos Aires (BUE)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. 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

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 October 30, 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 October 30, 2025.

Cheap flight deals from Helena to Buenos Aires

Most accurate provider

Most trusted provider

Round-trip from

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?

Browse thousands of different options on Cheapflights for your next trip

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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 October 30, 2025.