Buenos Aires

$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.
HLN — BUE
Oct 17 — Oct 241
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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 September 17, 2025.

Round-trip from

$1,304
(Delta)

One-way from

$571
(Kiwi.com)
From Helena to Buenos Aires (BUE)
One-way flight from Helena to Buenos Aires (BUE)

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.

This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:06 pmHLN - EZE
2 stops36h 59mDelta
Fri 12/128:00 amEZE - HLN
2 stops18h 30mDelta
Deal found 9/15$1,465
This United Airlines deal was found by Cheapflights users on 9/14. 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.
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

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 September 17, 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

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

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.

  • 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.

See more FAQs

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