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$425+ Cheap flights from Copenhagen (CPH) to Ontario (ONT)

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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — ONT
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
1 adult, Economy
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Find flight deals from Copenhagen to Ontario

Cheapest flights from Copenhagen to Ontario
Explore the most affordable flight options available from Copenhagen to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

This United Airlines deal was found by Cheapflights users on 11/20. 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 12/29:50 amCPH - ONT
2 stops21h 59mUnited Airlines
Tue 12/91:34 pmONT - CPH
2 stops19h 01mUnited Airlines
Deal found 11/20$828
This United Airlines deal was found by Cheapflights users on 11/20. 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 12/212:30 pmCPH - ONT
2 stops36h 13mUnited Airlines
Sun 12/286:00 amONT - CPH
2 stops21h 25mUnited Airlines
Deal found 11/20$1,640
This United Airlines deal was found by Cheapflights users on 11/20. 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 12/202:30 pmCPH - ONT
2 stops36h 13mUnited Airlines
Sat 12/276:00 amONT - CPH
2 stops22h 45mUnited Airlines
Deal found 11/20$1,663
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:40 amCPH - ONT
2 stops18h 36mMultiple Airlines
Sun 1/1110:58 amONT - CPH
2 stops17h 32mMultiple Airlines
Deal found 11/19$1,747
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 11/192:20 pmCPH - ONT
2 stops41h 31mUnited Airlines
Wed 11/267:00 amONT - CPH
2 stops21h 35mUnited Airlines
Deal found 11/19$2,208
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Fri 12/196:50 amCPH - ONT
2 stops36h 09mUnited Airlines
Fri 12/266:00 amONT - CPH
2 stops26h 35mUnited Airlines
Deal found 11/19$2,377
This Icelandair deal was found by Cheapflights users on 11/20. 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.
Tue 12/1612:55 pmCPH - ONT
2 stops18h 10mMultiple Airlines
Fri 12/2610:44 amONT - CPH
2 stops16h 01mMultiple Airlines
Deal found 11/20$4,712

Cheap flight deals from Copenhagen to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Copenhagen (CPH) to Ontario (ONT). 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 November 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$645
(flygcity.se)

One-way from

$425
(British Airways)

Popular in

July

Cheapest in

February

Average price

$749
Provider with most accurate pricing for Kastrup Copenhagen-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kastrup Copenhagen-Los Angeles flights.
Search Deals
From Kastrup Copenhagen to Ontario
Search Deals
One-way flight from Kastrup Copenhagen to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Copenhagen to Ontario 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 November 21, 2025.
Use the filters below to find and compare flights from Copenhagen to Ontario that are best for you.

Fly from

Copenhagen

Fly to

Ontario

Route

Depart

Return

Price

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Fri 4/10

7:25 am-5:46 pm

2 stops19h 21m

Ontario

Tue 4/14

8:05 pm-8:05 pm

2 stops39h 00m

$663

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Fri 4/10

8:40 am-5:47 pm

2 stops18h 07m

Ontario

Tue 4/14

7:00 am-6:40 pm

2 stops26h 40m

$688

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Mon 1/12

1:10 pm-10:53 pm

2 stops18h 43m

Ontario

Sat 1/24

1:53 pm-6:25 pm

2 stops19h 32m

$690

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Tue 12/2

9:50 am-10:49 pm

2 stops21h 59m

Ontario

Tue 12/9

1:34 pm-5:35 pm

2 stops19h 01m

$828

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Thu 1/15

6:45 am-5:22 pm

2 stops19h 37m

Ontario

Wed 1/28

4:45 pm-7:00 pm

2 stops17h 15m

$834

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Mon 1/12

12:55 pm-11:56 pm

2 stops20h 01m

Ontario

Mon 2/2

8:55 am-11:45 am

2 stops17h 50m

$959

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Wed 1/14

10:30 am-8:10 pm

2 stops18h 40m

Ontario

Fri 1/23

4:45 pm-5:35 pm

2 stops15h 50m

$968

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Sun 12/21

2:30 pm-5:43 pm

2 stops36h 13m

Ontario

Sun 12/28

6:00 am-12:25 pm

2 stops21h 25m

$1,640

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Sat 12/20

2:30 pm-5:43 pm

2 stops36h 13m

Ontario

Sat 12/27

6:00 am-1:45 pm

2 stops22h 45m

$1,663

CopenhagenOntario

CPH - ONT

CPHONT

Kastrup Copenhagen

Thu 3/26

10:30 am-9:40 pm

2 stops19h 10m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 21 results
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Best time to book a flight from Copenhagen to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Copenhagen 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 Copenhagen to Ontario

What is the cheapest month to book a flight from Copenhagen to Ontario?

Currently, February is the cheapest month in which you can book a flight from Copenhagen to Ontario (average of $485). Flying from Copenhagen to Ontario in July is currently the most expensive (average of $681). 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.

Related info for your journey

Find useful and relevant information for your journey from Copenhagen to Ontario. 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 Copenhagen to Ontario?

    There are many flights that can get you from Copenhagen to Ontario in 18h 07m. Fly via American Airlines or United Airlines to get the fastest option. Airlines will cover a distance of 5579 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Copenhagen to Ontario that include hotel bookings?

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

  • How can I find direct flights from Copenhagen to Ontario?

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

  • Can I find deals for business class flights from Copenhagen to Ontario?

    Yes. Cheapflights offers flight deals from Copenhagen to Ontario 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 Copenhagen to Ontario?

    Currently, February is the cheapest month in which you can book a flight from Copenhagen to Ontario (average of $485). Flying from Copenhagen to Ontario in July is currently the most expensive (average of $681). 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

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