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Oslo Gardermoen

$692+ Cheap flights from Helena (HLN) to Oslo Gardermoen (OSL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — OSL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Helena to Oslo Gardermoen

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Oslo Gardermoen (OSL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$692
(Delta)
From Helena to Oslo Gardermoen
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Find flight deals from Helena to Oslo Gardermoen

Cheapest flights from Helena to Oslo Gardermoen
Explore the most affordable flight options available from Helena to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:45 amHLN - OSL
2 stops26h 55mDelta
Tue 10/286:25 amOSL - HLN
2 stops22h 51mDelta
Deal found 7/26$692

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to Oslo Gardermoen 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Helena to Oslo Gardermoen Airport that are best for you.

Fly from

Helena

Fly to

Oslo Gardermoen

Route

Depart

Return

Price

HelenaOslo

HLN - OSL

HLNOSL

Helena

Fri 10/24

5:45 am-4:40 pm

2 stops26h 55m

Oslo Gardermoen

Tue 10/28

6:25 am-10:16 pm

2 stops22h 51m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Best time to book a flight from Helena to Oslo Gardermoen

Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen from Helena with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helena to Oslo Gardermoen Airport

What is the cheapest month to book a flight from Helena to Oslo Gardermoen Airport?

Currently, November is the cheapest month in which you can book a flight from Helena to Oslo Gardermoen Airport (average of $567). Flying from Helena to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,010). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Oslo Gardermoen

Get insights into the airlines that provide service to Oslo Gardermoen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oslo Gardermoen. Reviews last updated July 29, 2025.
Read through reviews of airlines operating flights from Helena to Oslo Gardermoen Airport, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Helena to Oslo Gardermoen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Helena to Oslo Gardermoen?

    Most people fly from Helena (HLN) if they book a flight from Helena to Oslo Gardermoen. On average, Helena has 0 outbound flights to Oslo Gardermoen per day from 0 airlines. Helena is conveniently located just 2.7 mi from Helena’s city center.

  • Can I find deals for flights from Helena to Oslo Gardermoen that include hotel bookings?

    Yes. In addition to deals on Helena to Oslo Gardermoen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to Oslo Gardermoen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to Oslo Gardermoen.

  • Can I find deals for business class flights from Helena to Oslo Gardermoen?

    Yes. Cheapflights offers flight deals from Helena to Oslo Gardermoen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helena to Oslo Gardermoen Airport?

    Currently, November is the cheapest month in which you can book a flight from Helena to Oslo Gardermoen Airport (average of $567). Flying from Helena to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,010). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
Gardermoen

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