Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Helena to Oslo from $714

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Oslo departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Helena to Oslo (HLN-OSL)

Cheap round-trip flights

United Airlines Logo
5:18 pm - 10:10 pmHLN-OSL
20h 52m2 stops
United Airlines Logo
11:50 am - 9:22 pmOSL-HLN
40h 32m2 stops
$714United Airlines
Find Deal
vie., oct. 24 - mar., oct. 28
United Airlines Logo
5:18 pm - 10:10 pmHLN-OSL
20h 52m2 stops
United Airlines Logo
1:45 pm - 9:22 pmOSL-HLN
38h 37m2 stops
$717United Airlines
Find Deal
vie., oct. 24 - mar., oct. 28

United Airlines flights from Helena to Oslo Gardermoen Airport

Our best United Airlines deals on Helena to Oslo Gardermoen Airport flight tickets
United Airlines
Oct 24
HLN5:18 pmHelena
20h 52m
2 stops
OSL10:10 pmOslo Gardermoen
Oct 28
OSL11:50 amOslo Gardermoen
40h 32m
2 stops
HLN9:22 pmHelena
$714
Find similar
United Airlines
Oct 24
HLN5:18 pmHelena
20h 52m
2 stops
OSL10:10 pmOslo Gardermoen
Oct 28
OSL1:45 pmOslo Gardermoen
38h 37m
2 stops
HLN9:22 pmHelena
$717
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Helena to Oslo Gardermoen 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 agosto 18, 2025.
Use the filters below to find and compare flights from Helena to Oslo Gardermoen Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaOslo

HLN - OSL

HLNOSL

Helena

vie. 10/24

5:18 pm-10:10 pm

2 stops20h 52m

Oslo Gardermoen

mar. 10/28

11:50 am-9:22 pm

2 stops40h 32m

$714

HelenaOslo

HLN - OSL

HLNOSL

Helena

vie. 10/24

5:18 pm-10:10 pm

2 stops20h 52m

Oslo Gardermoen

mar. 10/28

1:45 pm-9:22 pm

2 stops38h 37m

$717

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Oslo from

How to get the cheapest flight ticket from Helena to Oslo Gardermoen 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

What airlines fly to Oslo Gardermoen Airport?

Delta, KLM and United Airlines are the top three most popular airlines that fly to Oslo Gardermoen Airport from Helena according to our data. Delta is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Oslo Gardermoen Airport. Keep in mind that there are 4 different airlines that fly to Oslo Gardermoen Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from Helena to Oslo Gardermoen Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to Oslo Gardermoen Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Helena to Oslo Gardermoen Airport (HLN to OSL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Oslo Gardermoen Airport

Best Price Found

$714

Fastest flight time

20h 52m

Direct flights

None
The best flight deal from Helena to Oslo Gardermoen Airport found on momondo in the last 72 hours is $714
The fastest flight from Helena to Oslo Gardermoen Airport takes 20h 52m
There are no direct flights from Helena to Oslo Gardermoen Airport. Popular non-direct route for this connection is Helena Airport - Oslo Gardermoen Airport.
Search flight deals

  • How far is Helena to Oslo Gardermoen by plane?

    The distance between Helena and Oslo Gardermoen is about 4395.6 mi. In terms of flight time, this usually takes a little over 20h 52m.

  • When did momondo last update prices for flights from Helena Airport to Oslo Gardermoen Airport?

    Prices for flights from Helena Airport to Oslo Gardermoen Airport were last updated today.

  • How old do you have to be to fly from Helena Airport to Oslo Gardermoen 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 Helena Airport to Oslo Gardermoen Airport.

  • What documentation or ID do you need to fly to Oslo Gardermoen Airport?

    The required travel and health documents for your Oslo Gardermoen Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Oslo Gardermoen Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Oslo?

Book flights to Oslo if you plan to visit one of these locations
Gardermoen
Fredrikstad
Drammen
Lillehammer

Why use momondo?

Why should I use momondo to find a flight deal from Helena to Oslo?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Helena to Oslo. momondo saves you time and could save you money on your trip.

Can I find flights from Helena to Oslo with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Helena to Oslo flights to just show those with flexible booking policies.

How can momondo help me find flights from Helena to Oslo?

momondo provides multiple filters to help you find the best flight to Oslo from Helena. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Helena to Oslo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Oslo and let you know when they change.

An easier way to manage your Oslo Gardermoen Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 8/23
sáb. 8/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Oslo

Popular cities in Norway

Popular flights according to clicks in the last 7 days on momondo
Flights to Oslo Sandefjord Airportfrom $373