$512 Cheap Flights from Monterrey (MTY) to Helena (HLN)

View $512 flight on Fri, Jul 10, 2026Opens in a new window

Popular airlines from General Mariano Escobedo Intl. Airport (MTY) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Monterrey to Helena (MTY-HLN)

Prices were available within the past 7 days and start at $512 for one-way flights and $905 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$905 Roundtrip, found 3 days ago
$905
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $905 found 3 days ago
United
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$967 Roundtrip, found 3 days ago
$967
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $967 found 3 days ago
United
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,031 Roundtrip, found 3 days ago
$1,031
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,031 found 3 days ago
Delta
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,048 Roundtrip, found 3 days ago
$1,048
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,048 found 3 days ago
United
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,058 Roundtrip, found 3 days ago
$1,058
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,058 found 3 days ago
Aeromexico
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,076 Roundtrip, found 3 days ago
$1,076
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,076 found 3 days ago
Delta
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,081 Roundtrip, found 3 days ago
$1,081
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,081 found 3 days ago
Delta
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,090 Roundtrip, found 3 days ago
$1,090
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,090 found 3 days ago
Delta
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,119 Roundtrip, found 3 days ago
$1,119
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,119 found 3 days ago
Delta
Fri, Jul 10 - Sat, Jul 18
MTY
Monterrey
HLN
Helena
$1,123 Roundtrip, found 3 days ago
$1,123
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jul 10 from Monterrey to Helena, returning Sat, Jul 18, priced at $1,123 found 3 days ago

Frequently asked questions

How much does a flight from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN) cost?
Lock in a cheap one-way flight from $512 or cheap return flight from $905 from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN)?
Traveling in July may help you find better deals, as it's the cheapest month for flights between MTY and HLN. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest MTY to HLN flight.
How many flights per day from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN)?
Direct flights from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MTY to HLN?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN)?
To reach Helena Regional Airport (HLN) without delays, opt for a flight that leaves General Mariano Escobedo Intl. Airport (MTY) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN) last-minute?
Last-minute bookings from MTY to HLN are usually more expensive. To secure the best rates, start searching for flights well ahead of time. That being said, if your travel plans are flexible, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a MTY to HLN flight and hotel package?
Securing a MTY to HLN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from General Mariano Escobedo Intl. Airport (MTY) to Helena Regional Airport (HLN)?
In most cases, you're able to reschedule or cancel your MTY to HLN flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need more information, go to our Customer Service portal.

Travel information

Origin airport
General Mariano Escobedo Intl.
Destination airport
Helena Regional
Roundtrip price
$905
Distance
1580 mi

Book with confidence

Monterrey to Helena Flights

The cheapest times to fly from Monterrey to Helena

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Monterrey to Helena are during the month of July. You can find some of the cheapest flights from Monterrey to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Monterrey to Helena

Sunday is one of the best days to book for cheap flights from Monterrey to Helena: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Monterrey to Helena

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Monterrey to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $512 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Monterrey to Helena flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Monterrey to Helena airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Monterrey to Helena Flights

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*Available to One Key members.