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$405+ Cheap flights from Ontario (ONT) to Copenhagen (CPH)

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Ontario to Copenhagen

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Copenhagen (CPH). 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$528
(United Airlines)

One-way from

$405
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$629
Provider with most accurate pricing for Ontario-Kastrup Copenhagen flight deals.
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Provider most trusted by Cheapflights users for Ontario-Kastrup Copenhagen flights.
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From Ontario to Kastrup Copenhagen
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One-way flight from Ontario to Kastrup Copenhagen
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Highest demand for flights based on searches. 6% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Ontario to Copenhagen

Cheapest flights from Ontario to Copenhagen
Explore the most affordable flight options available from Ontario to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/28. 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 11/111:33 pmONT - CPH
2 stops19h 02mUnited Airlines
Fri 12/510:10 amCPH - ONT
2 stops20h 39mUnited Airlines
Deal found 10/28$548
This United Airlines deal was found by Cheapflights users on 10/29. 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 10/297:00 amONT - CPH
2 stops20h 25mUnited Airlines
Fri 11/710:10 amCPH - ONT
2 stops21h 41mUnited Airlines
Deal found 10/29$550
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/307:00 amONT - CPH
2 stops26h 05mUnited Airlines
Fri 12/510:10 amCPH - ONT
2 stops21h 39mUnited Airlines
Deal found 10/30$561
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/101:50 pmONT - CPH
2 stops19h 15mUnited Airlines
Wed 12/171:10 pmCPH - ONT
2 stops18h 39mUnited Airlines
Deal found 10/30$563
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/307:00 amONT - CPH
2 stops19h 25mUnited Airlines
Sun 12/141:10 pmCPH - ONT
2 stops18h 39mUnited Airlines
Deal found 10/30$637
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/27:00 amONT - CPH
2 stops25h 30mUnited Airlines
Tue 11/1110:10 amCPH - ONT
2 stops20h 39mUnited Airlines
Deal found 10/29$750
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/41:33 pmONT - CPH
2 stops19h 02mUnited Airlines
Sun 11/910:05 amCPH - ONT
2 stops20h 44mUnited Airlines
Deal found 10/30$771
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/91:34 pmONT - CPH
2 stops19h 01mUnited Airlines
Mon 1/1910:10 amCPH - ONT
2 stops21h 43mUnited Airlines
Deal found 10/29$773
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/245:05 amONT - CPH
2 stops28h 00mUnited Airlines
Sat 1/2410:05 amCPH - ONT
2 stops20h 53mUnited Airlines
Deal found 10/29$786
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/81:32 pmONT - CPH
2 stops39h 03mUnited Airlines
Sun 11/166:50 amCPH - ONT
2 stops23h 59mUnited Airlines
Deal found 10/29$790
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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.
Tue 11/1110:47 amONT - CPH
2 stops17h 28mMultiple Airlines
Wed 11/198:40 amCPH - ONT
2 stops18h 41mMultiple Airlines
Deal found 10/28$864
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/27:00 amONT - CPH
2 stops17h 20mUnited Airlines
Tue 11/46:50 amCPH - ONT
2 stops19h 44mUnited Airlines
Deal found 10/29$1,031

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Copenhagen 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 October 30, 2025.
Use the filters below to find and compare flights from Ontario to Copenhagen that are best for you.

Fly from

Ontario

Fly to

Copenhagen

Route

Depart

Return

Price

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Tue 3/31

6:00 am-10:50 am

2 stops19h 50m

Kastrup Copenhagen

Tue 4/14

12:25 pm-6:00 pm

2 stops38h 35m

$528

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Tue 11/11

1:33 pm-5:35 pm

2 stops19h 02m

Kastrup Copenhagen

Fri 12/5

10:10 am-9:49 pm

2 stops20h 39m

$548

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Sun 11/30

7:00 am-6:05 pm

2 stops26h 05m

Kastrup Copenhagen

Fri 12/5

10:10 am-10:49 pm

2 stops21h 39m

$561

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Wed 12/10

1:50 pm-6:05 pm

2 stops19h 15m

Kastrup Copenhagen

Wed 12/17

1:10 pm-10:49 pm

2 stops18h 39m

$563

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Fri 3/27

10:30 pm-6:55 pm

2 stops36h 25m

Kastrup Copenhagen

Tue 3/31

9:25 am-4:19 pm

2 stops39h 54m

$600

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Sun 11/30

7:00 am-11:25 am

2 stops19h 25m

Kastrup Copenhagen

Sun 12/14

1:10 pm-10:49 pm

2 stops18h 39m

$637

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Fri 3/27

5:40 am-9:50 am

2 stops44h 10m

Kastrup Copenhagen

Tue 3/31

12:25 pm-6:00 pm

3 stops38h 35m

$720

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Fri 3/27

5:40 am-9:50 am

2 stops44h 10m

Kastrup Copenhagen

Tue 3/31

12:25 pm-8:17 pm

2 stops40h 52m

$721

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Tue 12/9

1:34 pm-5:35 pm

2 stops19h 01m

Kastrup Copenhagen

Mon 1/19

10:10 am-10:53 pm

2 stops21h 43m

$773

OntarioCopenhagen

ONT - CPH

ONTCPH

Ontario

Tue 11/4

1:40 pm-11:05 pm

2 stops24h 25m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 21 results
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Compare providers for flights from Ontario to Copenhagen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Copenhagen in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Copenhagen flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Copenhagen flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Copenhagen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Copenhagen flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Copenhagen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Copenhagen

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

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Copenhagen (average of $457). Flying from Ontario to Copenhagen in June is currently the most expensive (average of $605). 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.

What is the cheapest time of day to fly from ONT to CPH?

Find hourly flight availability from Ontario to Copenhagen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s optimal to fly from Ontario to Copenhagen at noon. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the afternoon.

Related info for your journey

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

    Departing from Ontario to Copenhagen will take you 19h 50m. Ontario and Copenhagen are separated by 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 Ontario to Copenhagen that include hotel bookings?

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Ontario to Copenhagen (average of $457). Flying from Ontario to Copenhagen in June is currently the most expensive (average of $605). 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

Traveling to a place near Copenhagen?

Book flights to Copenhagen if you plan to visit one of these locations
Kastrup

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