Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Ontario to Oslo from $323

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Oslo departing on 8/9. 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
1 adult, Economy, 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 Ontario to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:50 pm - 8:40 pm
ONT
-
OSL
17h 50m
2 stops
Delta Logo
6:30 am - 10:43 pm
OSL
-
ONT
25h 13m
2 stops
$714Delta
Wed, Oct 7 - Sun, Oct 18
Delta Logo
2:00 pm - 6:45 pm
ONT
-
OSL
43h 45m
2 stops
Delta Logo
6:30 am - 9:56 pm
OSL
-
ONT
24h 26m
2 stops
$715Delta
Tue, Sep 8 - Sun, Sep 20
Delta Logo
5:55 pm - 8:40 pm
ONT
-
OSL
17h 45m
2 stops
Delta Logo
6:30 am - 9:01 am
OSL
-
ONT
35h 31m
2 stops
$721Delta
Wed, Sep 9 - Sun, Sep 20
Delta Logo
1:00 pm - 8:40 pm
ONT
-
OSL
22h 40m
2 stops
Delta Logo
6:30 am - 6:18 pm
OSL
-
ONT
20h 48m
2 stops
$748Delta
Wed, Oct 7 - Sun, Oct 18
Delta Logo
12:00 pm - 6:35 pm
ONT
-
OSL
21h 35m
2 stops
Delta Logo
6:30 am - 10:43 pm
OSL
-
ONT
25h 13m
2 stops
$759Delta
Sun, Oct 4 - Sat, Oct 10
Delta Logo
2:00 pm - 8:40 pm
ONT
-
OSL
21h 40m
2 stops
Delta Logo
9:20 am - 9:56 pm
OSL
-
ONT
21h 36m
2 stops
$764Delta
Thu, Sep 10 - Sun, Sep 20
United Airlines Logo
6:39 pm - 10:05 pm
ONT
-
OSL
18h 26m
2 stops
United Airlines Logo
6:25 am - 6:11 pm
OSL
-
ONT
20h 46m
2 stops
$765United Airlines
Sun, Aug 9 - Sun, Aug 23
Multiple Airlines Logo
10:39 am - 12:35 pm
ONT
-
OSL
40h 56m
2 stops
Multiple Airlines Logo
1:50 pm - 10:32 pm
OSL
-
ONT
17h 42m
2 stops
$767Multiple Airlines
Tue, May 5 - Tue, May 12
KLM Logo
4:57 pm - 8:55 pm
ONT
-
OSL
18h 58m
2 stops
KLM Logo
6:30 am - 5:08 pm
OSL
-
ONT
19h 38m
2 stops
$768KLM
Tue, May 26 - Tue, Jun 2
United Airlines Logo
1:18 pm - 3:55 pm
ONT
-
OSL
17h 37m
2 stops
United Airlines Logo
1:05 pm - 10:58 pm
OSL
-
ONT
18h 53m
2 stops
$776United Airlines
Wed, Aug 19 - Mon, Aug 24

Delta flights from Ontario to Oslo Gardermoen Airport

Our best Delta deals on Ontario to Oslo Gardermoen Airport flight tickets
Delta
Sep 8
ONT2:00 pmOntario
21h 40m
2 stops
OSL8:40 pmOslo Gardermoen
Sep 18
OSL6:30 amOslo Gardermoen
24h 26m
2 stops
ONT9:56 pmOntario
$714
Delta
Sep 8
ONT2:00 pmOntario
43h 45m
2 stops
OSL6:45 pmOslo Gardermoen
Sep 20
OSL6:30 amOslo Gardermoen
24h 26m
2 stops
ONT9:56 pmOntario
$715
Delta
Sep 9
ONT5:55 pmOntario
17h 45m
2 stops
OSL8:40 pmOslo Gardermoen
Sep 20
OSL6:30 amOslo Gardermoen
35h 31m
2 stops
ONT9:01 amOntario
$721

British Airways flights from Ontario to Oslo Gardermoen Airport

Our best British Airways deals on Ontario to Oslo Gardermoen Airport flight tickets
British Airways
Aug 10
ONT4:54 pmOntario
21h 31m
2 stops
OSL11:25 pmOslo Gardermoen
Aug 24
OSL8:30 pmOslo Gardermoen
31h 27m
2 stops
ONT6:57 pmOntario
$782
British Airways
Oct 5
ONT4:59 pmOntario
21h 26m
2 stops
OSL11:25 pmOslo Gardermoen
Oct 19
OSL8:35 amOslo Gardermoen
19h 22m
2 stops
ONT6:57 pmOntario
$787
British Airways
Sep 9
ONT4:59 pmOntario
21h 26m
2 stops
OSL11:25 pmOslo Gardermoen
Sep 23
OSL8:35 amOslo Gardermoen
19h 22m
2 stops
ONT6:57 pmOntario
$815

momondo Fare Finder

 
Customize your flight search to find flights from Ontario 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 April 11, 2026.
Use the filters below to find and compare flights from Ontario to Oslo Gardermoen Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Wed 10/7

5:50 pm-8:40 pm

2 stops17h 50m

Oslo Gardermoen

Sun 10/18

6:30 am-10:43 pm

2 stops25h 13m

$714

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Tue 9/8

2:00 pm-6:45 pm

2 stops43h 45m

Oslo Gardermoen

Sun 9/20

6:30 am-9:56 pm

2 stops24h 26m

$715

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Wed 9/9

5:55 pm-8:40 pm

2 stops17h 45m

Oslo Gardermoen

Sun 9/20

6:30 am-9:01 am

2 stops35h 31m

$721

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Wed 10/7

1:00 pm-8:40 pm

2 stops22h 40m

Oslo Gardermoen

Sun 10/18

6:30 am-6:18 pm

2 stops20h 48m

$748

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sun 10/4

12:00 pm-6:35 pm

2 stops21h 35m

Oslo Gardermoen

Sat 10/10

6:30 am-10:43 pm

2 stops25h 13m

$759

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Thu 9/10

2:00 pm-8:40 pm

2 stops21h 40m

Oslo Gardermoen

Sun 9/20

9:20 am-9:56 pm

2 stops21h 36m

$764

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Sun 8/9

6:39 pm-10:05 pm

2 stops18h 26m

Oslo Gardermoen

Sun 8/23

6:25 am-6:11 pm

2 stops20h 46m

$765

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Tue 5/5

10:39 am-12:35 pm

2 stops40h 56m

Oslo Gardermoen

Tue 5/12

1:50 pm-10:32 pm

2 stops17h 42m

$767

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Tue 5/26

4:57 pm-8:55 pm

2 stops18h 58m

Oslo Gardermoen

Tue 6/2

6:30 am-5:08 pm

2 stops19h 38m

$768
Quickest round-trip

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Wed 8/19

1:18 pm-3:55 pm

2 stops17h 37m

Oslo Gardermoen

Mon 8/24

1:05 pm-10:58 pm

2 stops18h 53m

$776

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Oslo from

How to get the cheapest flight ticket from Ontario 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 is the cheapest airline that flies from Ontario to Oslo Gardermoen?

British Airways, Icelandair, and United Airlines are the most popular carriers operating from Ontario to Oslo Gardermoen

What airlines fly to Oslo Gardermoen Airport?

Scandinavian Airlines, Lufthansa and KLM are the top three most popular airlines that fly to Oslo Gardermoen Airport from Ontario according to our data. Scandinavian Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Oslo Gardermoen Airport. Keep in mind that there are 9 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 Ontario to Oslo Gardermoen Airport

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

Cheap Ontario to Oslo Gardermoen Airport (ONT to OSL) flight deals and tips

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

Fastest flight time

18h 00m

Direct flights

None
The fastest flight from Ontario to Oslo Gardermoen Airport takes 18h 00m
There are no direct flights from Ontario to Oslo Gardermoen Airport. There are no popular flight routes from Ontario to Oslo Gardermoen Airport.
Search flight deals

Frequently asked questions about flying from Ontario to Oslo Gardermoen Airport

  • How far is Ontario to Oslo Gardermoen by plane?

    The straight-line distance from Ontario to Oslo Gardermoen is 5303.0 mi. Flights usually cover this in 18h 00m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Ontario Airport to Oslo Gardermoen Airport are updated daily.

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

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

    The necessary travel and health documents for your Oslo Gardermoen Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
Lillehammer
Drammen

Why use momondo?

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

Finding the right flight to Oslo from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Oslo quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Oslo from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Oslo from Ontario.

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

Yes momondo offers price alerts on flights to Oslo from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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
Mon 5/11
Mon 5/18
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 $503