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Cheap flights from Montana to Buenos Aires from $639

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Buenos Aires departing on 7/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Montana to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:05 am - 8:00 am
BIL
-
EZE
23h 55m
2 stops
United Airlines Logo
9:00 pm - 5:16 pm
EZE
-
BIL
23h 16m
2 stops
$1,596United Airlines
Tue, May 12 - Tue, May 19
United Airlines Logo
10:35 am - 8:00 am
BIL
-
EZE
18h 25m
2 stops
United Airlines Logo
9:00 pm - 8:57 pm
EZE
-
BIL
26h 57m
2 stops
$1,636United Airlines
Sun, May 10 - Sun, May 17
United Airlines Logo
2:29 pm - 8:00 am
HLN
-
EZE
38h 31m
2 stops
United Airlines Logo
9:00 pm - 4:05 pm
EZE
-
HLN
22h 05m
2 stops
$1,672United Airlines
Sat, Sep 19 - Wed, Sep 23
United Airlines Logo
6:15 am - 8:00 am
HLN
-
EZE
46h 45m
2 stops
United Airlines Logo
9:00 pm - 8:59 pm
EZE
-
HLN
26h 59m
2 stops
$1,713United Airlines
Sat, Sep 19 - Wed, Sep 23
Multiple Airlines Logo
10:35 am - 9:20 am
BIL
-
EZE
19h 45m
3 stops
Multiple Airlines Logo
1:10 pm - 1:23 pm
EZE
-
BIL
27h 13m
2 stops
$4,478Multiple Airlines
Tue, May 12 - Tue, May 19
United Airlines Logo
5:00 am - 8:00 am
BIL
-
EZE
24h 00m
2 stops
United Airlines Logo
9:00 pm - 10:20 pm
EZE
-
BIL
28h 20m
2 stops
$5,591United Airlines
Thu, Jul 16 - Sat, Jul 25
Multiple Airlines Logo
7:59 pm - 9:20 am
BZN
-
EZE
34h 21m
2 stops
Multiple Airlines Logo
8:10 pm - 1:09 pm
EZE
-
BZN
19h 59m
1 stop
$5,687Multiple Airlines
Sun, May 3 - Wed, May 13
Multiple Airlines Logo
7:59 pm - 9:20 am
BZN
-
EZE
34h 21m
2 stops
Multiple Airlines Logo
1:10 pm - 1:09 pm
EZE
-
BZN
26h 59m
2 stops
$5,692Multiple Airlines
Sun, May 3 - Wed, May 13
LATAM Airlines Logo
2:53 pm - 1:00 am
BZN
-
EZE
55h 07m
2 stops
LATAM Airlines Logo
7:35 am - 1:09 pm
EZE
-
BZN
32h 34m
3 stops
$5,762LATAM Airlines
Sun, May 3 - Wed, May 13
Delta Logo
6:25 am - 9:20 am
BIL
-
EZE
23h 55m
2 stops
Delta Logo
1:10 pm - 10:24 pm
EZE
-
BIL
36h 14m
2 stops
$6,281Delta
Wed, Apr 8 - Fri, Apr 17

United Airlines flights from Montana to Buenos Aires Ministro Pistarini Airport

Our best United Airlines deals on Montana to Buenos Aires Ministro Pistarini Airport flight tickets
United Airlines
May 12
BIL5:05 amBillings Logan Intl
23h 55m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
May 19
EZE9:00 pmBuenos Aires Ministro Pistarini
23h 16m
2 stops
BIL5:16 pmBillings Logan Intl
$1,596
United Airlines
May 10
BIL10:35 amBillings Logan Intl
18h 25m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
May 17
EZE9:00 pmBuenos Aires Ministro Pistarini
26h 57m
2 stops
BIL8:57 pmBillings Logan Intl
$1,636
United Airlines
Sep 19
HLN2:29 pmHelena
38h 31m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 23
EZE9:00 pmBuenos Aires Ministro Pistarini
22h 05m
2 stops
HLN4:05 pmHelena
$1,672

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Buenos Aires Ministro Pistarini Airport 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, momondo users made 832,500 searches. Data last updated March 30, 2026.
Use the filters below to find and compare flights from Montana to Buenos Aires Ministro Pistarini Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsBuenos Aires

BIL - EZE

BILEZE

Billings Logan Intl

Tue 5/12

5:05 am-8:00 am

2 stops23h 55m

Buenos Aires Ministro Pistarini

Tue 5/19

9:00 pm-5:16 pm

2 stops23h 16m

$1,596
Quickest round-trip

BillingsBuenos Aires

BIL - EZE

BILEZE

Billings Logan Intl

Sun 5/10

10:35 am-8:00 am

2 stops18h 25m

Buenos Aires Ministro Pistarini

Sun 5/17

9:00 pm-8:57 pm

2 stops26h 57m

$1,636

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Sat 9/19

2:29 pm-8:00 am

2 stops38h 31m

Buenos Aires Ministro Pistarini

Wed 9/23

9:00 pm-4:05 pm

2 stops22h 05m

$1,672

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Sat 9/19

6:15 am-8:00 am

2 stops46h 45m

Buenos Aires Ministro Pistarini

Wed 9/23

9:00 pm-8:59 pm

2 stops26h 59m

$1,713

BillingsBuenos Aires

BIL - EZE

BILEZE

Billings Logan Intl

Tue 5/12

10:35 am-9:20 am

3 stops19h 45m

Buenos Aires Ministro Pistarini

Tue 5/19

1:10 pm-1:23 pm

2 stops27h 13m

$4,478

BillingsBuenos Aires

BIL - EZE

BILEZE

Billings Logan Intl

Thu 7/16

5:00 am-8:00 am

2 stops24h 00m

Buenos Aires Ministro Pistarini

Sat 7/25

9:00 pm-10:20 pm

2 stops28h 20m

$5,591

BozemanBuenos Aires

BZN - EZE

BZNEZE

Bozeman Gallatin Field

Sun 5/3

7:59 pm-9:20 am

2 stops34h 21m

Buenos Aires Ministro Pistarini

Wed 5/13

8:10 pm-1:09 pm

1 stop19h 59m

$5,687

BozemanBuenos Aires

BZN - EZE

BZNEZE

Bozeman Gallatin Field

Sun 5/3

7:59 pm-9:20 am

2 stops34h 21m

Buenos Aires Ministro Pistarini

Wed 5/13

1:10 pm-1:09 pm

2 stops26h 59m

$5,692

BozemanBuenos Aires

BZN - EZE

BZNEZE

Bozeman Gallatin Field

Sun 5/3

2:53 pm-1:00 am

2 stops55h 07m

Buenos Aires Ministro Pistarini

Wed 5/13

7:35 am-1:09 pm

3 stops32h 34m

$5,762

BillingsBuenos Aires

BIL - EZE

BILEZE

Billings Logan Intl

Wed 4/8

6:25 am-9:20 am

2 stops23h 55m

Buenos Aires Ministro Pistarini

Fri 4/17

1:10 pm-10:24 pm

2 stops36h 14m

$6,281

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Montana to Buenos Aires Ministro Pistarini Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Montana to Buenos Aires Ministro Pistarini Airport flights?

You could potentially save up to 1% on your flight if you consider stops on a Montana to Buenos Aires Ministro Pistarini Airport flight.

Cheap Montana to Buenos Aires Ministro Pistarini Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Buenos Aires Ministro Pistarini Airport

Fastest flight time

15h 52m

Direct flights

None
The fastest flight from Montana to Buenos Aires Ministro Pistarini Airport takes 15h 52m
There are no direct flights from Montana to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Montana to Buenos Aires Ministro Pistarini Airport.
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  • When did momondo last update prices for flights from Montana to Buenos Aires Ministro Pistarini Airport?

    Prices for flights from Montana to Buenos Aires Ministro Pistarini Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Montana to Buenos Aires Ministro Pistarini Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montana to Buenos Aires Ministro Pistarini Airport.

  • What documentation or ID do you need to fly to Buenos Aires Ministro Pistarini Airport?

    The travel and health documents required for your trip to Buenos Aires Ministro Pistarini Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires Ministro Pistarini Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Buenos Aires?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montana to Buenos Aires. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montana to Buenos Aires with flexible booking policies on momondo?

All flight searches from Montana to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Montana to Buenos Aires?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Montana to Buenos Aires.

I’m not ready to book a flight from Montana to Buenos Aires right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Montana to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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