Cheap flights from Ontario to Trondheim from C$ 1,916
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/12. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Ontario to Trondheim
Cheapest flights from Ontario to TrondheimExplore the most affordable flight options available from Ontario to Trondheim. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.
Explore the most affordable flight options available from Ontario to Trondheim. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Ontario to Trondheim that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
TorontoTrondheim
YYZ - TRD
YYZTRD
Toronto Pearson Intl
Sat 20/12
9:15 p.m.-10:55 p.m.
1 stop19h 40m
Trondheim Vaernes
Tue 30/12
6:15 a.m.-7:15 p.m.
1 stop19h 00m
TorontoTrondheim
YYZ - TRD
YYZTRD
Toronto Pearson Intl
Sat 20/12
7:40 p.m.-8:50 p.m.
2 stops19h 10m
Trondheim Vaernes
Tue 30/12
6:35 p.m.-6:15 p.m.
2 stops29h 40m
TorontoTrondheim
YYZ - TRD
YYZTRD
Toronto Pearson Intl
Sat 20/12
6:15 p.m.-2:55 p.m.
2 stops14h 40m
Trondheim Vaernes
Tue 30/12
9:10 a.m.-7:50 p.m.
2 stops16h 40m
Best time to book a flight from Ontario to Trondheim
Have a flexible travel schedule? Discover the best time to fly to Trondheim from Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Trondheim
How much does it cost to fly round-trip from Region of Ontario to Trondheim?
Related info for your journey
Find useful and relevant information for your journey from Ontario to Trondheim. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
Alternative routes for Ontario to Trondheim
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Ontario to Trondheim
Discover the top 2 airlines that operate flights from Ontario to Trondheim. 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 629,999 searches. Data last updated 18 August 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Ontario to Trondheim?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Trondheim from Ontario today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Ontario to Trondheim?
Cheapflights helps you find that perfect flight to Trondheim from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Ontario to Trondheim with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Trondheim, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Ontario to Trondheim become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!