Cheap flights from Ontario to Trondheim from C$ 945
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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Ontario to Trondheim
Best flights from Ontario to TrondheimDiscover carefully curated flight deals from Ontario to Trondheim that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 17 October 2025.
Discover carefully curated flight deals from Ontario to Trondheim that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 17 October 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
Sun 5/4
10:10 p.m.-4:30 p.m.
1 stop12h 20m
Trondheim Vaernes
Wed 8/4
12:05 p.m.-1:20 p.m.
1 stop31h 15m
TorontoTrondheim
YYZ - TRD
YYZTRD
Toronto Pearson Intl
Fri 13/3
12:10 p.m.-2:30 p.m.
2 stops21h 20m
Trondheim Vaernes
Fri 20/3
6:25 a.m.-4:40 p.m.
2 stops15h 15m
TorontoTrondheim
YYZ - TRD
YYZTRD
Toronto Pearson Intl
Fri 13/3
6:30 p.m.-9:20 p.m.
3 stops21h 50m
Trondheim Vaernes
Fri 20/3
7:45 a.m.-7:15 p.m.
3 stops16h 30m
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
Related info for your journey
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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 17 October 2025.
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How does Cheapflights help users find flights from Ontario to Trondheim?
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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!