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$673+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — BUE
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Helena to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) 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 mayo 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,450
(United Airlines)

One-way from

$673
(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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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 mayo 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/146:25 amHLN - EZE
2 stops22h 35mUnited Airlines
vie. 5/239:00 pmEZE - HLN
2 stops27h 15mUnited Airlines
Deal found 4/30$1,450

Cheapflights Fare Finder

Customize your flight search to find flights from Helena 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 mayo 1, 2025.
Use the filters below to find and compare flights from Helena to Buenos Aires that are best for you.

Fly from

Helena

Fly to

Buenos Aires

Route

Depart

Return

Price

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

mié. 5/14

6:25 am-8:00 am

2 stops22h 35m

Buenos Aires Ministro Pistarini

vie. 5/23

9:00 pm-9:15 pm

2 stops27h 15m

$1,450

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

dom. 8/24

6:45 am-8:00 am

2 stops22h 15m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

  • 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

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

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.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

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).

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 mayo 1, 2025.
United Airlines
7.4
Good
8,696 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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?

    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.

  • 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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