# Travel >> Destinations >> Canada

Postage Rates for Letters to Ontario, Canada (Canada Post)

Sending a letter from the US to Ontario, Canada requires international postage. Rates below are for Canada Post (sender in Canada mailing within Canada) — if you're in the US, use USPS rates.

If Mailing FROM Canada TO Ontario (Domestic)

Letter Type	Max Size	Price (No Tracking)	Price (With Tracking*)
Standard (≤30g, ≤245×156×5mm)	Non-oversized	$1.44 (1 stamp)	Not available
Oversized (≤500g, ≤380×270×20mm)	Oversized	$2.50	$4.57 (Registered Mail)

*Tracking = Registered Mail (signature optional). No tracking for standard letters.

If Mailing FROM USA TO Ontario (International)

USPS Service	Est. Delivery	Price (1 oz)	Tracking
Global Forever Stamp	7–21 days	$1.65	No
First-Class Mail International	7–21 days	$1.65+	No (letters); Yes (flats >15.99 oz)
First-Class Package International	7–21 days	$15.50+	Yes
Priority Mail International	6–10 days	$30.50+	Yes
Priority Mail Express International	3–5 days	$50.50+	Yes (guaranteed)

Key Details

Oversized (Canada Post): >245mm L or >156mm W or >5mm thick or >30g.
Max weight (letter rate): 500g (Canada); 2kg (USPS FCMI).
Customs: US→CA requires CN22 form (value, contents). Gifts <$60 CAD duty-free.
Forever Stamps: US Global Forever = always valid for 1 oz international letter.

Recommendation

From US: Global Forever Stamp ($1.65) for standard letters.
From Canada: $1.44 stamp for standard; $2.50 for large envelopes.
Need proof of delivery? Use Registered Mail (CA) or Priority Mail International (US).

Rates current as of 2024; verify at canadapost.ca or usps.com.

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