$319 Cheap Flights from Helena (HLN) to Buffalo (BUF)

View $319 flight on Wed, Apr 1, 2026Opens in a new window

Popular airlines from Helena, MT (HLN-Helena Regional) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Helena to Buffalo (HLN-BUF)

Prices were available within the past 7 days and start at $319 for one-way flights and $480 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$480 Roundtrip, found 4 days ago
$480
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $480 found 4 days ago
United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$570 Roundtrip, found 4 days ago
$570
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $570 found 4 days ago
United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$582 Roundtrip, found 4 days ago
$582
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $582 found 4 days ago
United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$630 Roundtrip, found 4 days ago
$630
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $630 found 4 days ago
United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$645 Roundtrip, found 4 days ago
$645
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $645 found 4 days ago
United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$655 Roundtrip, found 4 days ago
$655
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $655 found 4 days ago
United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$661 Roundtrip, found 4 days ago
$661
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $661 found 4 days ago
United
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$685 Roundtrip, found 4 days ago
$685
Roundtrip
found 4 days ago
Select United flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $685 found 4 days ago
Alaska Airlines
Thu, Mar 26 - Tue, Mar 31
HLN
Helena
BUF
Buffalo
$828 Roundtrip, found 4 days ago
$828
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Mar 26 from Helena to Buffalo, returning Tue, Mar 31, priced at $828 found 4 days ago
Delta
Fri, Jul 17 - Sat, Jul 25
HLN
Helena
BUF
Buffalo
$1,102 Roundtrip, found 2 days ago
$1,102
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Jul 17 from Helena to Buffalo, returning Sat, Jul 25, priced at $1,102 found 2 days ago

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Frequently asked questions

How much does a flight from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $319 and cheap return flights from $480 Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. One-way flights generally range between $498 and $1926, and roundtrip flights usually range from $406 to $1728. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The cheapest month to fly from HLN to BUF is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Enter HLN to BUF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
United is one of the cheapest airlines offering connecting flights from Helena Regional (HLN) to Buffalo Niagara Intl. (BUF), with round-trip tickets starting from around $1,005 with a layover in Denver Intl. (DEN). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Helena Regional Airport (HLN) to Buffalo Niagara International Airport (BUF) usually leaves at 5:30 AM, operated by Delta. This seasonal service is active in November, giving you a head start on your travels to Buffalo. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
For flights from Helena, MT (HLN) to Buffalo, NY (BUF), the most popular departure times are in the early morning, from 6am to 9am. About 57% of passengers prefer this time window. Many major carriers, including United Airlines, offer flights during this window. This timing is popular as it allows you to start your day early and arrive in Buffalo with plenty of time to spare.
How long does it take to fly from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Flying from HLN to BUF with a connection usually takes about 6 hours 30 minutes, traveling roughly 1,639 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Select the "Business class" and "First class" filters when looking for HLN to BUF flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Buffalo from Helena Regional (HLN)?
If you're planning to travel to Buffalo from Helena Regional (HLN), you can fly into Buffalo Niagara Intl. (BUF) Some flights may connect through major hubs like Denver Intl. (DEN), Salt Lake City Intl. (SLC), Seattle - Tacoma Intl. (SEA) before reaching Buffalo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) Buffalo Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your Helena, MT (HLN-Helena Regional) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Helena Regional
Destination airport
Buffalo Niagara Intl.
Roundtrip price
$479
Distance
1638 mi

Book with confidence

Helena to Buffalo Flights

The cheapest times to fly from Helena to Buffalo

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 Helena to Buffalo are during the month of March. You can find some of the cheapest flights from Helena to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helena to Buffalo

Sunday is one of the best days to book for cheap flights from Helena to Buffalo: 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 Helena to Buffalo

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 Helena to Buffalo in 2026. You can also book with separate airlines for your outbound and return journeys, from $319 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 Helena to Buffalo 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 Helena to Buffalo 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.

 

Helena to Buffalo Flights

*Flight schedules are subject to change.

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