ONT - OSL

$284 Find Cheap Flights from Ontario to Oslo - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$690
Typical prices: $792-$1,270
Air France, KLM
Mon 11/5Mon 11/12
ONT - OSL • 2 stops
Cheapest one-way
$284
Typical prices: $497-$704
Multiple Airlines
Wed 10/31
ONT - OSL • 2 stops
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We hope you love your trip to Oslo Gardermoen Airport!
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Booking Insights
Flight Deals

Cheap Flights from Ontario to Oslo Gardermoen (ONT-OSL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Oslo Gardermoen

Thu, Nov 5 - Thu, Nov 12
Multiple Airlines Logo
12:16 pm - 2:35 pmONT  Ontario-OSL Oslo Gardermoen
17h 19m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Multiple Airlines Logo
6:05 am - 4:24 pmOSL  Oslo Gardermoen-ONT Ontario
19h 19m2 stops Amsterdam Schiphol Salt Lake City
$690Multiple Airlines
Thu, Nov 5 - Thu, Nov 12
Multiple Airlines Logo
6:25 am - 11:35 amONT  Ontario-OSL Oslo Gardermoen
20h 10m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
1:10 pm - 11:51 pmOSL  Oslo Gardermoen-ONT Ontario
19h 41m2 stops Reykjavik Keflavik Intl Denver Intl
$744Multiple Airlines
Tue, Oct 20 - Tue, Nov 3
United Airlines Logo
4:03 pm - 10:05 pmONT  Ontario-OSL Oslo Gardermoen
21h 02m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
6:15 am - 6:01 pmOSL  Oslo Gardermoen-ONT Ontario
20h 46m2 stops Frankfurt am Main San Francisco
$764United Airlines
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
1:29 pm - 5:40 pmONT  Ontario-OSL Oslo Gardermoen
19h 11m2 stops Denver Intl Munich Franz Josef Strauss
United Airlines Logo
11:50 am - 10:48 pmOSL  Oslo Gardermoen-ONT Ontario
19h 58m2 stops Munich Franz Josef Strauss San Francisco
$766United Airlines
Wed, Jan 20 - Wed, Feb 3
Multiple Airlines Logo
10:38 am - 2:15 pmONT  Ontario-OSL Oslo Gardermoen
18h 37m2 stops Dallas/Fort Worth Madrid Barajas
Multiple Airlines Logo
8:40 am - 6:51 pmOSL  Oslo Gardermoen-ONT Ontario
19h 11m2 stops Helsinki-Vantaa Dallas/Fort Worth
$770Multiple Airlines
Thu, Nov 5 - Thu, Nov 12
United Airlines Logo
1:29 pm - 5:40 pmONT  Ontario-OSL Oslo Gardermoen
19h 11m2 stops Denver Intl Munich Franz Josef Strauss
United Airlines Logo
6:15 am - 8:15 pmOSL  Oslo Gardermoen-ONT Ontario
23h 00m3 stops Frankfurt am Main Denver Intl San Francisco
$770United Airlines
Sun, Feb 21 - Sun, Mar 7
United Airlines Logo
6:30 am - 5:10 pmONT  Ontario-OSL Oslo Gardermoen
25h 40m2 stops Chicago O'Hare Intl Brussels Bruxelles-National
United Airlines Logo
6:15 am - 11:06 pmOSL  Oslo Gardermoen-ONT Ontario
25h 51m2 stops Frankfurt am Main San Francisco
$770United Airlines
Thu, Feb 18 - Thu, Mar 4
United Airlines Logo
6:30 am - 5:10 pmONT  Ontario-OSL Oslo Gardermoen
25h 40m2 stops Chicago O'Hare Intl Brussels Bruxelles-National
United Airlines Logo
1:55 pm - 12:20 pmOSL  Oslo Gardermoen-ONT Ontario
31h 25m2 stops Frankfurt am Main San Francisco
$775United Airlines
Wed, Nov 25 - Wed, Dec 9
United Airlines Logo
4:17 pm - 11:40 pmONT  Ontario-OSL Oslo Gardermoen
22h 23m2 stops San Francisco Frankfurt am Main
United Airlines Logo
6:15 am - 5:36 pmOSL  Oslo Gardermoen-ONT Ontario
20h 21m2 stops Frankfurt am Main San Francisco
$775United Airlines
Wed, Dec 2 - Thu, Dec 10
United Airlines Logo
4:17 pm - 11:40 pmONT  Ontario-OSL Oslo Gardermoen
22h 23m2 stops San Francisco Frankfurt am Main
United Airlines Logo
6:15 am - 5:36 pmOSL  Oslo Gardermoen-ONT Ontario
20h 21m2 stops Frankfurt am Main San Francisco
$776United Airlines
Booking Insights

Price, demand and travel trends for Ontario to Oslo Gardermoen Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Ontario to Oslo Gardermoen Airport with more confidence.

What is the cheapest airline to fly from Ontario to Oslo Gardermoen Airport?

United Airlines ($764) offered the cheapest round-trip ticket from Ontario to Oslo Gardermoen Airport in the last 5 days.

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Key details for Ontario to Oslo Gardermoen Airport flights

Cheapest flight

$284
Flight from Ontario to Oslo Gardermoen Airport

When to book flights from Ontario to Oslo Gardermoen

Are your dates flexible? Find out the best times to travel from Ontario to Oslo Gardermoen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Oslo Gardermoen Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What cabin classes can I book on flights from Ontario to Oslo Gardermoen Airport?

    Only Economy Class is available on flights from Ontario to Oslo Gardermoen Airport.

  • Do I need a passport to fly from Ontario to Oslo Gardermoen Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Ontario to Oslo Gardermoen Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $690 to $6,628. That means the highest observed fare was about 10x higher than the lowest one.

  • How are flight prices from Ontario to Oslo Gardermoen Airport looking right now?

    One-way fares from Ontario to Oslo Gardermoen Airport are currently lower than usual. Average one-way flight prices are about $331, which is 35% below the typical average for this route.

  • What car rental options are available at Oslo Gardermoen Airport (OSL)?

    Oslo Gardermoen Airport (OSL) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
    • Hertz
    • Budget
    • Sixt
    • Avis
    • Thrifty

  • Which airports can I use when flying from Ontario to Oslo Gardermoen Airport?

    Flights from Ontario to Oslo Gardermoen Airport usually depart from Ontario (ONT) and arrive at Oslo Gardermoen (OSL).

  • Can I save money by using flexible dates for flights from Ontario to Oslo Gardermoen Airport?

    Yes. Being flexible with your travel dates can save you up to 40% on the Ontario to Oslo Gardermoen Airport route. Monday is the cheapest departure day at $764 round-trip on average, while Tuesday is the most expensive at $1,270, a difference of $506. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Ontario and Oslo Gardermoen Airport?

    Oslo Gardermoen Airport is 9 hours ahead of Ontario (Central European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Oslo Gardermoen Airport?

    Some of the most popular sights in Oslo Gardermoen Airport are Nationaltheatret, Rockefeller and Oslo domkirke. These are among the most viewed places in Oslo Gardermoen Airport on KAYAK.

Your guide to booking Ontario to Oslo Gardermoen Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Tuesday. On this route, Monday flights average $764 - about $506 less than Tuesday (40% savings) based on the last 12 months.

More options for your flight from Ontario to Oslo Gardermoen

Complete your trip to Oslo with a hotel stay or car rental

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