Cheap Flights from Denver International (DEN) to Helena (HLN)

Compare Denver International to Helena flight deals

Find the cheapest month or even day of the year to fly to Helena

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Flight deals from Denver International Airport to Helena Airport

Looking for a cheap last-minute deal or the best return flight from Denver International Airport to Helena Airport? If you want to travel next month, return fares start from £214. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Denver International to Helena

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Helena flights are currently cheapest in May.

Direct flights from Denver International to Helena

Denver International to Helena: Alternative routes

Compare routes from Denver International to Helena below. You may find an airport to fly into that's cheaper, faster, or easier than Helena.

Denver to Helena: Flight information

The things to know before you go.
Cheapest flight found£186
Cheapest month to flyMay
Average flight time2 hrs, 1 min
Most popular airlineUnited
Average flights per week32

Finding cheap flights from Denver International to Helena: Frequently asked questions

The best price we found for a return flight from Denver International to Helena is £214. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 1 minute is the average flight time from Denver International to Helena.
United and SkyWest Airlines fly direct from Denver International to Helena.
As of April 2026, there are 32 flights per week flying from Denver International to Helena.
The cheapest month to fly from Denver International to Helena is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Helena Airport on Sunday, 3 May 2026.
Yes – the average flight time is 2 hours and 1 minute.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Helena but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Helena is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Helena.

Flying from Denver International Airport (DEN) to Helena Regional Airport (HLN): what you need to know

  • The average duration of a direct flight from Denver International Airport to Helena Regional Airport is 1 hour 55 minutes.

  • Take your pick of 20 weekly Denver International Airport to Helena Regional Airport flights. The 11:16 departure with United Airlines is the earliest available. United Airlines operates the latest service of the day at 19:40.

  • To ensure you catch your DEN to HLN flight, allow plenty of time to check in and drop off your luggage. Arriving two hours before international departures and an hour before domestic flights is the standard rule.

  • You can expect longer lines in popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a good idea.

  • Jetting into Helena (and then exploring more of United States!) is a breeze with United Airlines. This popular airline has direct flights from Denver International Airport to Helena Regional Airport.

  • Most passengers choose to travel with United Airlines on this route.

  • With a reliable 80.0% of services arriving on schedule, United Airlines has the best on-time record for DEN to HLN flights.

  • Pick a stopover if you'd love to break up your flight. Simply deselect 'Direct flights only' to look at your options for tickets from Denver International Airport to Helena Regional Airport. Salt Lake City International Airport is a popular stopover on the DEN to HLN route.

How to find the cheapest flights from Denver International Airport (DEN) to Helena Regional Airport (HLN)

  • Right now, £186 is the cheapest price we've seen for a one-way Denver International Airport to Helena Regional Airport flight. The best price for a return plane ticket is £214. Bear in mind that fares may change due to availability at the time of booking.

  • Book six months before your departure date. After looking at the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from DEN to HLN.

  • May is the cheapest month for flights from Denver International Airport to Helena Regional Airport. If you prefer to fly at a different time of year, the 'Whole month' tool will give you the lowest airfares for every month.

  • Snapping up cheap flights from DEN to HLN couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when fares go down.

  • Select your preferred arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Denver International Airport to Helena Regional Airport.

Handy information about Denver International Airport (DEN)

  • You'll find DEN at 8500 Pena Boulevard.

  • 80.23% of flights departing from Denver International Airport land at their destination on time. Given its reliable on-time performance, you're unlikely to face delays when jetting out of DEN.

  • Denver International Airport is around 25 miles from central Denver. If you're driving, catching a cab or ride-sharing from the centre, it'll take 35 minutes or so to get there, depending on the traffic.

  • You can expect a journey time of roughly 1 hour 30 minutes on public transport.

  • Booking a night at a hotel can take the stress out of reaching the airport on time. If you want a place to stay before your flight from Denver International Airport to Helena Regional Airport, check out Baymont by Wyndham Denver International Airport. It's a quick drive from DEN.

Arriving at Helena Regional Airport (HLN)

  • If you're landing on a late Denver International Airport to Helena Regional Airport flight, few things beat the convenience of being close to the terminal. Grab your bags from the carousel and then be tucked up in bed not long after at one of these accommodation options near HLN:

  • Get your adventure underway by picking up a Helena Regional Airport rental car. Grab your wheels from Budget, Enterprise or Avis and experience the lesser-explored corners of Helena and beyond.

  • Reserve your ride from Helena Regional Airport a few weeks in advance to secure the best deal. If you're planning to travel during a busy period, it's a smart idea to book even earlier.

Getting from Helena Regional Airport (HLN) to central Helena

  • HLN is located at 2850 Mercer Loop.

  • Helena Regional Airport is roughly 4 miles from the centre of Helena. The drive time takes around 15 minutes.

  • Travelling on public transport takes roughly 1 hour 50 minutes.

When to fly to Helena Regional Airport (HLN)

  • July is the busiest month for flights from Denver International Airport to Helena Regional Airport. To skip the crowds, travel to Helena in February.

  • Before locking in your flight from Denver International Airport to Helena Regional Airport, consider the type of weather you enjoy. July is the warmest month in Helena, with the temperature ranging from 9ºC (48ºF) to 31ºC (88ºF).

  • December sees average temperatures of between -15ºC (5ºF) and 2ºC (36ºF). Search for cheap tickets from DEN to HLN around that time if you'd rather travel in cooler conditions.

Explore more of United States

  • You've seen Helena, now it's time to discover more of United States. Travel around 260 miles west to Spokane to check off its popular sights. From Manito Park to Northwest Museum of Arts & Culture and Spokane Falls, there's plenty to keep you busy.

  • Boise is another must-experience destination in United States and is around 290 miles south-west of Helena. No journey is complete without visiting Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.