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Cheap flights from Ontario to Tonga from C$ 2,320

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — TBU
17 Apr — 24 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Tonga

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Tonga
Explore the most affordable flight options available from Ontario to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 March 2026.

Mon 30/35:55 p.m.
YUL
-
TBU
2 stops38h 10m
Multiple Airlines
Tue 26/55:40 a.m.
TBU
-
YUL
2 stops42h 11m
Multiple Airlines
Deal found 17/3C$ 2,320
Mon 30/35:55 p.m.
YUL
-
TBU
2 stops38h 10m
Multiple Airlines
Tue 28/45:40 a.m.
TBU
-
YUL
2 stops52h 16m
Multiple Airlines
Deal found 17/3C$ 2,329
Mon 30/35:55 p.m.
YUL
-
TBU
2 stops38h 10m
Multiple Airlines
Wed 27/511:20 a.m.
TBU
-
YUL
2 stops36h 31m
Multiple Airlines
Deal found 17/3C$ 2,370
Mon 30/35:55 p.m.
YUL
-
TBU
2 stops38h 10m
Multiple Airlines
Wed 29/45:00 a.m.
TBU
-
YUL
2 stops56h 40m
Multiple Airlines
Deal found 17/3C$ 2,380
Mon 30/35:55 p.m.
YUL
-
TBU
2 stops38h 10m
Multiple Airlines
Mon 25/511:20 a.m.
TBU
-
YUL
2 stops36h 31m
Multiple Airlines
Deal found 17/3C$ 2,435
Tue 31/36:10 p.m.
YUL
-
TBU
2 stops57h 20m
Multiple Airlines
Wed 27/53:50 p.m.
TBU
-
YUL
2 stops32h 01m
Multiple Airlines
Deal found 17/3C$ 2,832
Tue 31/36:10 p.m.
YUL
-
TBU
2 stops57h 20m
Multiple Airlines
Mon 27/411:55 a.m.
TBU
-
YUL
2 stops37h 43m
Multiple Airlines
Deal found 17/3C$ 3,364
Tue 31/36:10 p.m.
YUL
-
TBU
2 stops57h 20m
Multiple Airlines
Wed 29/44:25 p.m.
TBU
-
YUL
2 stops41h 31m
Multiple Airlines
Deal found 17/3C$ 3,426
Tue 31/36:10 p.m.
YUL
-
TBU
2 stops57h 20m
Multiple Airlines
Tue 26/511:55 a.m.
TBU
-
YUL
2 stops35h 56m
Multiple Airlines
Deal found 17/3C$ 3,467
Tue 31/36:00 p.m.
YUL
-
TBU
2 stops57h 30m
Air New Zealand
Mon 25/511:55 a.m.
TBU
-
YUL
2 stops35h 56m
Air New Zealand
Deal found 17/3C$ 3,818
Tue 31/35:55 p.m.
YUL
-
TBU
2 stops28h 30m
Multiple Airlines
Tue 28/411:20 a.m.
TBU
-
YUL
2 stops46h 07m
Multiple Airlines
Deal found 17/3C$ 3,961
Wed 1/46:00 p.m.
YUL
-
TBU
2 stops28h 25m
Multiple Airlines
Tue 28/411:20 a.m.
TBU
-
YUL
2 stops46h 07m
Multiple Airlines
Deal found 17/3C$ 3,978

Find flight deals from Ontario to Tonga

Keep the following information in mind while searching for Ontario to Tonga flight deals. Data was last updated 18 March 2026.

Round-trip from

C$ 2,320
30/3-26/5
  • 30/3-26/5
  • 4 total stops
  • 80h 21m total
  • Ontario to Tonga
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Tonga 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 629,999 searches. Data last updated 18 March 2026.
Use the filters below to find and compare flights from Ontario to Tonga that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealNuku‘alofa

YUL - TBU

YULTBU

Montreal Pierre Elliott Trudeau Intl

Mon 30/3

5:55 p.m.-1:05 a.m.

2 stops38h 10m

Nuku‘alofa Fua'Amotu Intl

Wed 29/4

5:00 a.m.-8:40 p.m.

2 stops56h 40m

C$ 2,380

MontrealNuku‘alofa

YUL - TBU

YULTBU

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

6:10 p.m.-8:30 p.m.

2 stops57h 20m

Nuku‘alofa Fua'Amotu Intl

Wed 27/5

3:50 p.m.-6:51 a.m.

2 stops32h 01m

C$ 2,832

MontrealNuku‘alofa

YUL - TBU

YULTBU

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

6:10 p.m.-8:30 p.m.

2 stops57h 20m

Nuku‘alofa Fua'Amotu Intl

Mon 27/4

11:55 a.m.-8:38 a.m.

2 stops37h 43m

C$ 3,364
Quickest round-trip

MontrealNuku‘alofa

YUL - TBU

YULTBU

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

6:00 p.m.-3:25 p.m.

2 stops28h 25m

Nuku‘alofa Fua'Amotu Intl

Wed 29/4

11:20 a.m.-4:50 p.m.

2 stops46h 30m

C$ 4,646

MontrealNuku‘alofa

YUL - TBU

YULTBU

Montreal Pierre Elliott Trudeau Intl

Mon 30/3

5:55 p.m.-1:05 a.m.

2 stops38h 10m

Nuku‘alofa Fua'Amotu Intl

Tue 28/4

5:30 p.m.-4:40 p.m.

3 stops64h 10m

C$ 12,740

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/3

Sorted by cheapest first

Best time to book a flight from Ontario to Tonga

Have a flexible travel schedule? Discover the best time to fly to Tonga 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 Tonga
No data available for this route at this time. Please check back soon.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Tonga by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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