As a lawful permanent resident of the United States (U.S.), you do not need an electronic travel authorization (eTA) to travel to Canada.
Documents you'll need when you travel
At check-in, you'll need to show airline staff proof of your valid status as a permanent resident of the U.S.
All methods of travel
When you arrive in Canada, a border services officer will ask to see your passport and proof of your valid status as a permanent resident of the U.S. or other documents.
When you travel, make sure to bring
- proper identification document(s), such as a valid passport from your country of nationality
- proof of your status as a permanent resident of the U.S., such as a valid green card (officially known as a permanent resident card)