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Cheap flights from Helena to Oslo from $602

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 4/8. 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

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Find the cheapest flights from Helena to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:25 pm - 10:05 pm
HLN
-
OSL
23h 40m
2 stops
United Airlines Logo
6:35 am - 9:33 pm
OSL
-
HLN
22h 58m
2 stops
$602United Airlines
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
1:02 pm - 9:00 pm
HLN
-
OSL
24h 58m
2 stops
Multiple Airlines Logo
6:25 am - 10:30 pm
OSL
-
HLN
23h 05m
2 stops
$658Multiple Airlines
Sun, Mar 8 - Wed, Mar 11
United Airlines Logo
6:15 am - 11:40 pm
HLN
-
OSL
33h 25m
2 stops
United Airlines Logo
6:10 am - 9:25 pm
OSL
-
HLN
46h 15m
2 stops
$722United Airlines
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
2:25 pm - 5:55 pm
HLN
-
OSL
19h 30m
3 stops
United Airlines Logo
6:35 am - 9:33 pm
OSL
-
HLN
22h 58m
3 stops
$768United Airlines
Wed, Apr 8 - Wed, Apr 15
United Airlines Logo
6:15 am - 5:50 pm
HLN
-
OSL
27h 35m
2 stops
United Airlines Logo
6:10 am - 9:25 pm
OSL
-
HLN
22h 15m
2 stops
$916United Airlines
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
4:36 pm - 10:40 pm
HLN
-
OSL
23h 04m
2 stops
Multiple Airlines Logo
11:50 am - 3:59 pm
OSL
-
HLN
35h 09m
3 stops
$938Multiple Airlines
Sun, Mar 8 - Wed, Mar 11
United Airlines Logo
6:15 am - 11:00 am
HLN
-
OSL
21h 45m
3 stops
United Airlines Logo
6:05 am - 9:25 pm
OSL
-
HLN
22h 20m
3 stops
$1,760United Airlines
Sun, Mar 8 - Wed, Mar 11
Lufthansa Logo
6:15 am - 3:45 pm
HLN
-
OSL
25h 30m
2 stops
Lufthansa Logo
7:10 am - 9:33 pm
OSL
-
HLN
22h 23m
2 stops
$4,449Lufthansa
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
2:25 pm - 10:05 pm
HLN
-
OSL
47h 40m
2 stops
United Airlines Logo
7:10 am - 9:33 pm
OSL
-
HLN
22h 23m
2 stops
$4,672United Airlines
Mon, Apr 6 - Wed, Apr 22
United Airlines Logo
6:15 am - 10:05 pm
HLN
-
OSL
31h 50m
2 stops
United Airlines Logo
11:45 am - 9:33 pm
OSL
-
HLN
41h 48m
2 stops
$4,675United Airlines
Tue, Apr 7 - Mon, Apr 20

United Airlines flights from Helena to Oslo Gardermoen Airport

Our best United Airlines deals on Helena to Oslo Gardermoen Airport flight tickets
United Airlines
Apr 8
HLN2:25 pmHelena
23h 40m
2 stops
OSL10:05 pmOslo Gardermoen
Apr 15
OSL6:35 amOslo Gardermoen
22h 58m
2 stops
HLN9:33 pmHelena
$602
United Airlines
Mar 5
HLN6:15 amHelena
33h 25m
2 stops
OSL11:40 pmOslo Gardermoen
Mar 9
OSL6:10 amOslo Gardermoen
46h 15m
2 stops
HLN9:25 pmHelena
$722
United Airlines
Apr 8
HLN2:25 pmHelena
19h 30m
3 stops
OSL5:55 pmOslo Gardermoen
Apr 15
OSL6:35 amOslo Gardermoen
22h 58m
3 stops
HLN9:33 pmHelena
$768

Lufthansa flights from Helena to Oslo Gardermoen Airport

Our best Lufthansa deals on Helena to Oslo Gardermoen Airport flight tickets
Lufthansa
Apr 7
HLN6:15 amHelena
25h 30m
2 stops
OSL3:45 pmOslo Gardermoen
Apr 21
OSL7:10 amOslo Gardermoen
22h 23m
2 stops
HLN9:33 pmHelena
$4,449
Lufthansa
Apr 8
HLN2:25 pmHelena
19h 30m
2 stops
OSL5:55 pmOslo Gardermoen
Apr 23
OSL7:10 amOslo Gardermoen
22h 23m
2 stops
HLN9:33 pmHelena
$5,829
Lufthansa
Apr 9
HLN2:25 pmHelena
19h 30m
2 stops
OSL5:55 pmOslo Gardermoen
Apr 23
OSL9:55 amOslo Gardermoen
19h 38m
2 stops
HLN9:33 pmHelena
$6,073

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 February 23, 2026.
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

Wed 4/8

2:25 pm-10:05 pm

2 stops23h 40m

Oslo Gardermoen

Wed 4/15

6:35 am-9:33 pm

2 stops22h 58m

$602

HelenaOslo

HLN - OSL

HLNOSL

Helena

Sun 3/8

1:02 pm-9:00 pm

2 stops24h 58m

Oslo Gardermoen

Wed 3/11

6:25 am-10:30 pm

2 stops23h 05m

$658

HelenaOslo

HLN - OSL

HLNOSL

Helena

Thu 3/5

6:15 am-11:40 pm

2 stops33h 25m

Oslo Gardermoen

Mon 3/9

6:10 am-9:25 pm

2 stops46h 15m

$722

HelenaOslo

HLN - OSL

HLNOSL

Helena

Wed 4/8

2:25 pm-5:55 pm

3 stops19h 30m

Oslo Gardermoen

Wed 4/15

6:35 am-9:33 pm

3 stops22h 58m

$768

HelenaOslo

HLN - OSL

HLNOSL

Helena

Thu 3/5

6:15 am-5:50 pm

2 stops27h 35m

Oslo Gardermoen

Mon 3/9

6:10 am-9:25 pm

2 stops22h 15m

$916

HelenaOslo

HLN - OSL

HLNOSL

Helena

Sun 3/8

4:36 pm-10:40 pm

2 stops23h 04m

Oslo Gardermoen

Wed 3/11

11:50 am-3:59 pm

3 stops35h 09m

$938

HelenaOslo

HLN - OSL

HLNOSL

Helena

Sun 3/8

6:15 am-11:00 am

3 stops21h 45m

Oslo Gardermoen

Wed 3/11

6:05 am-9:25 pm

3 stops22h 20m

$1,760

HelenaOslo

HLN - OSL

HLNOSL

Helena

Tue 4/7

6:15 am-3:45 pm

2 stops25h 30m

Oslo Gardermoen

Tue 4/21

7:10 am-9:33 pm

2 stops22h 23m

$4,449

HelenaOslo

HLN - OSL

HLNOSL

Helena

Mon 4/6

2:25 pm-10:05 pm

2 stops47h 40m

Oslo Gardermoen

Wed 4/22

7:10 am-9:33 pm

2 stops22h 23m

$4,672

HelenaOslo

HLN - OSL

HLNOSL

Helena

Tue 4/7

6:15 am-10:05 pm

2 stops31h 50m

Oslo Gardermoen

Mon 4/20

11:45 am-9:33 pm

2 stops41h 48m

$4,675

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Fastest flight time

23h 40m

Direct flights

None
The fastest flight from Helena to Oslo Gardermoen Airport takes 23h 40m
There are no direct flights from Helena to Oslo Gardermoen Airport. There are no popular flight routes from Helena to 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 23h 40m.

  • 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.

  • How do I get Price Alerts for flights from Helena to Oslo Gardermoen Airport?

    Price Alerts will notify you by email when the price for flights to Oslo Gardermoen Airport from Helena decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Helena to Oslo Gardermoen Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Oslo?

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

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

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