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Cheap flight deals from Oslo to Ontario Starting at €289

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • OSL04:05 pm
        33h 34m
        2 stops
        ONT04:39 pm
        Sat, Mar 8|Oslo - Ontario|Norse Atlantic Airways
        €289€532
        46% OFF
        46% OFF
        €532€289

        Choose Norse Atlantic Airways flights from Oslo to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from Oslo Airport on Sat, Mar 8, arriving at Ontario International Airport. One-way Prices start from €289 including taxes and charges.

      • OSL04:05 pm
        35h 13m
        2 stops
        ONT06:18 pm
        Sat, Mar 1|Oslo - Ontario|Norse Atlantic Airways
        €314€532
        41% OFF
        41% OFF
        €532€314

        Choose Norse Atlantic Airways flights from Oslo to Ontario. The one-way connecting flight with Norse Atlantic Airways departs from Oslo Airport on Sat, Mar 1, arriving at Ontario International Airport. One-way Prices start from €314 including taxes and charges.

      • OSL01:10 pm
        19h 59m
        2 stops
        ONT12:09 am
        Thu, Feb 20|Oslo - Ontario|Icelandair
        €442€532
        17% OFF
        17% OFF
        €532€442

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Thu, Feb 20, arriving at Ontario International Airport. One-way Prices start from €442 including taxes and charges.

      • OSL01:50 pm
        19h 9m
        2 stops
        ONT11:59 pm
        Wed, Apr 23|Oslo - Ontario|Icelandair
        €444
        €444

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Wed, Apr 23, arriving at Ontario International Airport. One-way Prices start from €444 including taxes and charges.

      • OSL01:50 pm
        19h 9m
        2 stops
        ONT11:59 pm
        Wed, Apr 2|Oslo - Ontario|Icelandair
        €446
        €446

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Wed, Apr 2, arriving at Ontario International Airport. One-way Prices start from €446 including taxes and charges.

      • OSL01:50 pm
        19h 9m
        2 stops
        ONT11:59 pm
        Wed, May 7|Oslo - Ontario|Icelandair
        €453
        €453

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Wed, May 7, arriving at Ontario International Airport. One-way Prices start from €453 including taxes and charges.

      • OSL01:10 pm
        19h 56m
        2 stops
        ONT12:06 am
        Wed, Feb 26|Oslo - Ontario|Icelandair
        €459
        €459

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Wed, Feb 26, arriving at Ontario International Airport. One-way Prices start from €459 including taxes and charges.

      • OSL01:10 pm
        19h 56m
        2 stops
        ONT12:06 am
        Wed, Mar 5|Oslo - Ontario|Icelandair
        €461
        €461

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Wed, Mar 5, arriving at Ontario International Airport. One-way Prices start from €461 including taxes and charges.

      • OSL01:10 pm
        19h 49m
        2 stops
        ONT11:59 pm
        Mon, Mar 3|Oslo - Ontario|Icelandair
        €463
        €463

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Mon, Mar 3, arriving at Ontario International Airport. One-way Prices start from €463 including taxes and charges.

      • OSL01:05 pm
        19h 49m
        2 stops
        ONT11:54 pm
        Sun, Mar 2|Oslo - Ontario|Icelandair
        €479
        €479

        Choose Icelandair flights from Oslo to Ontario. The one-way connecting flight with Icelandair departs from Oslo Airport on Sun, Mar 2, arriving at Ontario International Airport. One-way Prices start from €479 including taxes and charges.

      • OSL01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Thu, Feb 27|Oslo - Ontario|Norse Atlantic Airways
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Oslo to Los Angeles Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. FI319

    Icelandair

    01:50 pm

    OSL

    2.9h

    02:45 pm

    KEF

    SMTWTFS
    Search

  2. FI671

    Icelandair

    04:50 pm

    KEF

    8.1h

    06:55 pm

    DEN

    S-TWT-S

  3. F91499

    Frontier Airlines

    10:38 pm

    DEN

    2.4h

    11:59 pm

    ONT

    SMTWTFS

  4. FI319

    Icelandair

    01:50 pm

    OSL

    2.9h

    02:45 pm

    KEF

    SMTWTFS
    Search

  5. FI671

    Icelandair

    04:50 pm

    KEF

    8.1h

    06:55 pm

    DEN

    S-TWT-S

  6. F93825

    Frontier Airlines

    10:22 pm

    DEN

    2.5h

    11:54 pm

    ONT

    ------S

  7. FI319

    Icelandair

    01:50 pm

    OSL

    2.9h

    02:45 pm

    KEF

    SMTWTFS
    Search

  8. FI671

    Icelandair

    04:50 pm

    KEF

    8.1h

    06:55 pm

    DEN

    S-TWT-S

  9. F92907

    Frontier Airlines

    09:30 am

    DEN

    2.5h

    11:00 am

    ONT

    S---T--

  10. FI319

    Icelandair

    01:50 pm

    OSL

    2.9h

    02:45 pm

    KEF

    SMTWTFS
    Search

  11. FI681

    Icelandair

    04:50 pm

    KEF

    8.0h

    05:50 pm

    SEA

    SMTWTFS

  12. HA6609

    Hawaiian Airlines

    06:55 pm

    SEA

    2.5h

    09:27 pm

    ONT

    SMTWT-S

  13. FI319

    Icelandair

    01:50 pm

    OSL

    2.9h

    02:45 pm

    KEF

    SMTWTFS
    Search

  14. FI681

    Icelandair

    04:50 pm

    KEF

    8.0h

    05:50 pm

    SEA

    SMTWTFS

  15. AS1003

    Alaska Airlines

    09:23 pm

    SEA

    2.6h

    11:59 pm

    ONT

    SMTWTFS

  16. FI319

    Icelandair

    01:50 pm

    OSL

    2.9h

    02:45 pm

    KEF

    SMTWTFS
    Search

  17. FI681

    Icelandair

    04:50 pm

    KEF

    8.0h

    05:50 pm

    SEA

    SMTWTFS

  18. AS1088

    Alaska Airlines

    05:55 pm

    SEA

    2.6h

    08:29 pm

    ONT

    -MT----

  19. LH2457

    Lufthansa

    07:15 am

    OSL

    2.3h

    09:30 am

    MUC

    SMTWTFS
    Search

  20. LH488

    Lufthansa

    03:45 pm

    MUC

    10.2h

    04:59 pm

    SEA

    -M--T-S

  21. AS1088

    Alaska Airlines

    05:55 pm

    SEA

    2.6h

    08:29 pm

    ONT

    -MT----

  22. BA761

    British Airways

    07:15 am

    OSL

    2.8h

    09:05 am

    LHR

    SMTWTFS
    Search

  23. IB3626

    Iberia

    10:45 am

    LHR

    11.1h

    01:50 pm

    SFO

    SMT--FS

  24. UA794

    United Airlines

    07:05 pm

    SFO

    1.5h

    08:34 pm

    ONT

    SMTWTFS

  25. AY5911

    Finnair

    07:25 pm

    OSL

    2.3h

    08:45 pm

    LHR

    SM-WTFS
    Search

  26. AY5449

    Finnair

    04:30 pm

    LHR

    9.8h

    06:20 pm

    SEA

    SMTWTFS

  27. AS1003

    Alaska Airlines

    09:23 pm

    SEA

    2.6h

    11:59 pm

    ONT

    SMTWTFS

  28. BA763

    British Airways

    11:40 am

    OSL

    2.7h

    01:20 pm

    LHR

    SM-WTFS
    Search

  29. IB3507

    Iberia

    04:30 pm

    LHR

    9.8h

    06:20 pm

    SEA

    SMTWTFS

  30. AS1003

    Alaska Airlines

    09:23 pm

    SEA

    2.6h

    11:59 pm

    ONT

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly from Oslo to Ontario?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Oslo (OSL) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from Oslo to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Oslo (OSL) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around €956.

How to find a cheap flight from Oslo to Ontario

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Oslo to Ontario. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Oslo to Ontario

Flight distance6,723.62 km
Popular airlineIcelandair

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