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Oslo

$126+ Cheap flights from California to Oslo

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OSL
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap flight deals from California to Oslo

Cheapest flights from California to Oslo
Explore the most affordable flight options available from California to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 11/106:53 pm
ONT
-
OSL
2 stops33h 12m
United Airlines
Fri 11/136:15 am
OSL
-
ONT
2 stops25h 11m
United Airlines
Deal found 6/7$737
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:59 pm
ONT
-
OSL
2 stops22h 41m
British Airways
Tue 11/178:25 am
OSL
-
ONT
2 stops24h 32m
British Airways
Deal found 6/8$742
This FlightHub deal was found by Cheapflights users on 6/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:25 am
SMF
-
OSL
2 stops23h 05m
Lufthansa
Wed 11/116:15 am
OSL
-
SMF
2 stops18h 07m
Lufthansa
Deal found 6/6$753
This Air France deal was found by Cheapflights users on 6/8. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:55 am
ONT
-
OSL
2 stops19h 40m
Multiple Airlines
Tue 11/176:15 am
OSL
-
ONT
2 stops21h 03m
Multiple Airlines
Deal found 6/8$761
This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:00 pm
ONT
-
OSL
2 stops19h 40m
United Airlines
Tue 11/171:55 pm
OSL
-
ONT
2 stops18h 11m
United Airlines
Deal found 6/5$763
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 11/210:47 am
ONT
-
OSL
2 stops22h 53m
American Airlines
Tue 11/177:20 am
OSL
-
ONT
2 stops24h 03m
American Airlines
Deal found 6/8$764
This United Airlines deal was found by Cheapflights users on 6/8. 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 12/611:00 pm
SMF
-
OSL
2 stops33h 10m
United Airlines
Thu 12/106:15 am
OSL
-
SMF
2 stops25h 20m
United Airlines
Deal found 6/8$764
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 11/47:00 am
ONT
-
OSL
2 stops16h 45m
Delta
Tue 11/176:15 am
OSL
-
ONT
2 stops21h 03m
Delta
Deal found 6/8$766
This Delta deal was found by Cheapflights users on 6/7. 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.
Tue 9/812:00 pm
ONT
-
OSL
2 stops23h 40m
Delta
Mon 9/219:20 am
OSL
-
ONT
2 stops22h 20m
Delta
Deal found 6/7$767
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/66:10 am
ONT
-
OSL
2 stops26h 05m
United Airlines
Thu 8/206:45 am
OSL
-
ONT
2 stops23h 08m
United Airlines
Deal found 6/9$768
This Priceline deal was found by Cheapflights users on 6/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:25 am
ONT
-
OSL
2 stops21h 00m
British Airways
Tue 11/107:20 am
OSL
-
ONT
2 stops20h 02m
British Airways
Deal found 6/8$771
This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/306:40 am
SJC
-
OSL
2 stops25h 30m
United Airlines
Mon 12/76:15 am
OSL
-
SJC
2 stops20h 28m
United Airlines
Deal found 6/5$772

Find flight deals from California to Oslo

Keep the following information in mind while searching for California to Oslo flight deals. Data was last updated June 9, 2026.

Round-trip from

$737
(United Airlines)

One-way from

$126
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$1,071
From California to Oslo
Search Deals
One-way flight from California to Oslo
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($179 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Oslo 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 June 9, 2026.
Use the filters below to find and compare flights from California to Oslo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Tue 11/10

6:53 pm-1:05 pm

2 stops33h 12m

Oslo Gardermoen

Fri 11/13

6:15 am-8:20 pm

2 stops23h 05m

$738

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Mon 11/2

7:00 am-11:45 am

2 stops19h 45m

Oslo Gardermoen

Thu 11/19

6:15 am-5:17 pm

2 stops20h 02m

$766

San JoseOslo

SJC - OSL

SJCOSL

San Jose

Mon 11/30

6:40 am-5:10 pm

2 stops25h 30m

Oslo Gardermoen

Mon 12/7

6:15 am-5:43 pm

2 stops20h 28m

$772

OntarioOslo

ONT - OSL

ONTOSL

Ontario

Fri 10/30

6:00 am-1:05 pm

2 stops23h 05m

Oslo Gardermoen

Tue 11/17

1:55 pm-11:06 pm

2 stops18h 11m

$778

Santa AnaOslo

SNA - OSL

SNAOSL

Santa Ana J. Wayne/Orange Cnty

Sat 11/14

9:45 am-1:05 pm

2 stops18h 20m

Oslo Gardermoen

Sat 11/21

6:15 am-8:19 pm

2 stops23h 04m

$780

San DiegoOslo

SAN - OSL

SANOSL

San Diego

Tue 10/27

3:05 pm-8:55 pm

1 stop21h 50m

Oslo Gardermoen

Tue 11/10

6:15 am-12:10 pm

1 stop14h 55m

$785

San DiegoOslo

SAN - OSL

SANOSL

San Diego

Tue 10/27

2:00 pm-4:20 pm

2 stops18h 20m

Oslo Gardermoen

Tue 11/10

6:15 am-12:10 pm

1 stop14h 55m

$785

San DiegoOslo

SAN - OSL

SANOSL

San Diego

Wed 11/4

11:05 am-6:50 pm

2 stops22h 45m

Oslo Gardermoen

Fri 11/20

6:15 am-4:06 pm

2 stops18h 51m

$787

Los AngelesOslo

LAX - OSL

LAXOSL

Los Angeles

Tue 8/18

3:05 pm-6:05 pm

1 stop18h 00m

Oslo Gardermoen

Wed 9/2

6:35 am-1:10 pm

1 stop15h 35m

$788

San DiegoOslo

SAN - OSL

SANOSL

San Diego

Mon 9/14

11:06 am-12:35 pm

2 stops16h 29m

Oslo Gardermoen

Wed 9/30

4:30 pm-11:44 pm

2 stops40h 14m

$796

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from California to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo from California 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 California to Oslo

What is the cheapest month to book a flight from California to Oslo?

Currently, April is the cheapest month in which you can book a flight from California to Oslo (average of $269). Flying from California to Oslo in June is currently the most expensive (average of $589). 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.

How much does it cost to fly round-trip from California to Oslo?

How far ahead should I book a flight from California to Oslo?

The best time to book flights from California to Oslo is 64 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from California to Oslo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from California to Oslo?

    Delta, United Airlines, and KLM can get you from California to Oslo in just under 19h 45m. Your travel time can differ by up to 5h 45m. The distance between California and Oslo is about 5302 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from California to Oslo one-way?

    For one-way options, check prices for KLM. According to our data, you can fly for as low as $228. Users have also found prices from $234 and $237 on British Airways and Finnair, respectively.

  • What are the most popular routes from California to Oslo?

    Most travelers choose Los Angeles - Oslo Gardermoen, San Francisco - Oslo Gardermoen or Los Angeles - Oslo Sandefjord when deciding on the best route from California to Oslo.

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

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

  • How can I find direct flights from California to Oslo?

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

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

    Yes. Cheapflights offers flight deals from California to Oslo 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 California to Oslo?

    Currently, April is the cheapest month in which you can book a flight from California to Oslo (average of $269). Flying from California to Oslo in June is currently the most expensive (average of $589). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from California to Oslo

Discover the top 10 airlines that operate flights from California to Oslo. 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$418Average$871FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$473Average$767FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$474Average$731FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$488Average$695FlexibilityNo cancel feeOn-time76%
DeltaCheapest$508Average$895FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$514Average$611FlexibilityNo cancel feeOn-time77%
KLMCheapest$515Average$798FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$530Average$706FlexibilityNo cancel feeOn-time71%
FinnairCheapest$588Average$717FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$766Average$888FlexibilityNo cancel feeOn-time76%

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