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Oslo Gardermoen

$447+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OSL
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap 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 April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$711
(Delta)

One-way from

$447
(Delta)

Popular in

June

Cheapest in

March

Average price

$656
Provider with most accurate pricing for Ontario-Oslo Gardermoen flight deals.
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Provider most trusted by Cheapflights users for Ontario-Oslo Gardermoen flights.
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From Ontario to Oslo Gardermoen
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One-way flight from Ontario to Oslo Gardermoen
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Highest demand for flights based on searches. 17% potential increase in price ($150 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 24, 2025.

This British Airways deal was found by Cheapflights users on 4/23. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:01 pmONT - OSL
2 stops16h 09mBritish Airways
Tue 11/188:45 amOSL - ONT
2 stops18h 04mBritish Airways
Deal found 4/23$659
This Delta deal was found by Cheapflights users on 4/23. 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.
Sat 9/139:55 amONT - OSL
2 stops21h 45mDelta
Sat 9/206:30 amOSL - ONT
2 stops25h 11mDelta
Deal found 4/23$711
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 9/137:00 amONT - OSL
3 stops23h 40mUnited Airlines
Sat 9/207:15 amOSL - ONT
2 stops37h 58mUnited Airlines
Deal found 4/23$715
This Icelandair deal was found by Cheapflights users on 4/23. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2011:30 amONT - OSL
2 stops16h 05mMultiple Airlines
Mon 11/31:05 pmOSL - ONT
2 stops18h 32mMultiple Airlines
Deal found 4/23$1,108

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 April 24, 2025.
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

Sat 9/13

9:55 am-4:40 pm

2 stops21h 45m

Oslo Gardermoen

Sat 9/20

6:30 am-10:41 pm

2 stops25h 11m

$711

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sat 9/13

7:00 am-3:40 pm

3 stops23h 40m

Oslo Gardermoen

Sat 9/20

7:15 am-12:13 pm

2 stops37h 58m

$715

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sun 8/24

8:37 am-10:35 am

2 stops16h 58m

Oslo Gardermoen

Sun 9/7

8:35 am-5:40 pm

2 stops18h 05m

$804

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Mon 10/20

11:30 am-12:35 pm

2 stops16h 05m

Oslo Gardermoen

Mon 11/3

1:05 pm-10:37 pm

2 stops18h 32m

$1,108

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Tue 9/2

1:00 pm-4:20 pm

2 stops18h 20m

$447

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Tue 9/2

5:10 am-3:40 pm

2 stops25h 30m

$449

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sun 5/18

10:00 am-11:40 pm

2 stops28h 40m

$710

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sat 6/14

10:54 am-4:25 pm

2 stops20h 31m

$5,718

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-Oslo Gardermoen Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 $567). Flying from Ontario to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,101). 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.

What is the cheapest time of day to fly from ONT to OSL?

Find hourly flight availability from Ontario to Oslo Gardermoen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

It’s typically best to fly out from Ontario to Oslo Gardermoen Airport in the morning. Doing so could potentially save you 41% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Oslo Gardermoen by month

Plan your trip to Oslo Gardermoen by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oslo Gardermoen Airport ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo Gardermoen Airport when rainfall is around 1.6 in.

Temperature in Oslo Gardermoen by month

Plan your trip to Oslo Gardermoen by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oslo Gardermoen Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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 April 24, 2025.
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,799 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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. 1 airline 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.

  • What are the cheapest airlines flying from Ontario to Oslo Gardermoen Airport round-trip?

    Cheapflights users have booked flights from Ontario to Oslo Gardermoen Airport round-trip from $711. Other airlines that can offer you cheap pricing are United Airlines, from $715, and British Airways, from $804.

  • What are the cheapest airlines to fly from Ontario to Oslo Gardermoen Airport one-way?

    One-way options have recently been found by users for as low as $447 on Delta. Other airlines that offer cheap prices include United Airlines from $449 and American Airlines from $710 one-way.

  • 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 $567). Flying from Ontario to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,101). 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 Ontario?

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Gardermoen

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Alternative routes for Ontario to Oslo Gardermoen

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Top airline flying from Ontario to Oslo Gardermoen

Discover the top airline that operate flights from Ontario to Oslo Gardermoen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$614Average$785FlexibilityNo cancel feeOn-timeN/A

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