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Oslo Gardermoen

$233+ Cheap flights from Ontario (ONT) to Oslo Gardermoen (OSL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OSL
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from Ontario to Oslo Gardermoen

Cheapest flights from Ontario to Oslo Gardermoen
Explore the most affordable flight options available from Ontario to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This oojo deal was found by Cheapflights users on 2/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:39 pm
ONT
-
OSL
2 stops24h 01m
British Airways
Mon 3/238:50 pm
OSL
-
ONT
2 stops33h 59m
British Airways
Deal found 2/5$541
This American Airlines deal was found by Cheapflights users on 2/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:59 pm
ONT
-
OSL
2 stops25h 41m
American Airlines
Tue 8/257:45 am
OSL
-
ONT
2 stops19h 32m
American Airlines
Deal found 2/3$543
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/231:45 pm
ONT
-
OSL
2 stops18h 55m
United Airlines
Fri 2/276:15 am
OSL
-
ONT
2 stops22h 52m
United Airlines
Deal found 2/3$544
This United Airlines deal was found by Cheapflights users on 2/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:15 am
ONT
-
OSL
2 stops28h 25m
United Airlines
Mon 3/3011:45 am
OSL
-
ONT
2 stops39h 17m
United Airlines
Deal found 2/6$550
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/811:59 pm
ONT
-
OSL
2 stops33h 11m
United Airlines
Sun 3/229:35 am
OSL
-
ONT
2 stops44h 43m
United Airlines
Deal found 2/4$553
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:00 am
ONT
-
OSL
2 stops20h 20m
United Airlines
Mon 4/137:10 am
OSL
-
ONT
2 stops19h 37m
United Airlines
Deal found 2/4$554
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:00 am
ONT
-
OSL
2 stops22h 05m
United Airlines
Sat 11/149:35 am
OSL
-
ONT
2 stops21h 51m
United Airlines
Deal found 2/3$558
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/297:00 am
ONT
-
OSL
2 stops25h 15m
United Airlines
Sun 4/129:55 am
OSL
-
ONT
2 stops45h 31m
United Airlines
Deal found 2/3$562
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:00 am
ONT
-
OSL
2 stops18h 55m
United Airlines
Tue 9/81:10 pm
OSL
-
ONT
2 stops18h 56m
United Airlines
Deal found 2/4$567
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:00 am
ONT
-
OSL
2 stops18h 55m
United Airlines
Tue 9/86:55 am
OSL
-
ONT
2 stops19h 52m
United Airlines
Deal found 2/4$570

Find flight deals from Ontario to Oslo Gardermoen

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) 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 February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$541
(oojo)

One-way from

$233
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$629
Provider with most accurate pricing for Ontario-Oslo Gardermoen flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Oslo Gardermoen flights.
Search Deals
From Ontario to Oslo Gardermoen
Search Deals
One-way flight from Ontario to Oslo Gardermoen
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 February 6, 2026.
Use the filters below to find and compare flights from Ontario to Oslo Gardermoen Airport that are best for you.

Fly from

Ontario

Fly to

Oslo Gardermoen

Route

Depart

Return

Price

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Mon 3/9

2:39 pm-10:40 pm

2 stops24h 01m

Oslo Gardermoen

Mon 3/23

8:50 pm-10:49 pm

2 stops33h 59m

$541

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Mon 2/23

1:45 pm-5:40 pm

2 stops18h 55m

Oslo Gardermoen

Fri 2/27

6:15 am-8:07 pm

2 stops22h 52m

$544

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Mon 3/23

5:15 am-5:40 pm

2 stops28h 25m

Oslo Gardermoen

Mon 3/30

11:45 am-6:02 pm

2 stops39h 17m

$550

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Wed 4/29

4:52 pm-11:25 pm

2 stops21h 33m

Oslo Gardermoen

Tue 5/5

7:45 am-8:54 pm

2 stops22h 09m

$553

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sun 3/15

11:59 pm-5:10 pm

2 stops33h 11m

Oslo Gardermoen

Sun 3/22

9:35 am-10:18 pm

2 stops44h 43m

$553

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sun 3/8

11:59 pm-5:10 pm

2 stops33h 11m

Oslo Gardermoen

Sun 3/22

9:35 am-10:18 pm

2 stops44h 43m

$553

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sun 3/8

11:59 pm-5:10 pm

2 stops33h 11m

Oslo Gardermoen

Sun 3/15

1:50 pm-10:18 pm

2 stops40h 28m

$553

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Mon 3/30

7:00 am-12:20 pm

2 stops20h 20m

Oslo Gardermoen

Mon 4/13

7:10 am-5:47 pm

2 stops19h 37m

$554

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Wed 2/25

1:45 pm-5:30 pm

2 stops18h 45m

Oslo Gardermoen

Wed 3/4

1:50 pm-10:57 pm

2 stops18h 07m

$556

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sat 5/9

6:59 pm-10:05 pm

2 stops42h 06m

Oslo Gardermoen

Tue 5/19

6:55 am-8:36 pm

2 stops22h 41m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 22 results
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Compare providers for flights from Ontario to Oslo Gardermoen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Oslo Gardermoen in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Oslo Gardermoen Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Oslo Gardermoen Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Oslo Gardermoen Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Oslo Gardermoen Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Oslo Gardermoen Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Oslo Gardermoen

Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen from Ontario 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 Ontario to Oslo Gardermoen Airport

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Oslo Gardermoen Airport (average of $462). Flying from Ontario to Oslo Gardermoen Airport in June is currently the most expensive (average of $677). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario 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 Ontario to Oslo Gardermoen?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Oslo Gardermoen. 0 airlines have flights from Ontario to Oslo Gardermoen on a regular basis. Booking flights from Ontario to Oslo Gardermoen should not be difficult; the airport handles an average of 0 outbound flights to Oslo Gardermoen per day.

  • How long is the flight from Ontario to Oslo Gardermoen Airport?

    Departing from Ontario to Oslo Gardermoen Airport will take you 18h 55m. The distance from Ontario to Oslo Gardermoen Airport is about 5302 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario 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 Ontario to Oslo Gardermoen Airport?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Oslo Gardermoen Airport (average of $462). Flying from Ontario to Oslo Gardermoen Airport in June is currently the most expensive (average of $677). 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.

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