As defined by Transport Canada, an international airport means any airport that situated as an airport of entry and departure for international air traffic, where the formalities incident to customs, immigration, public health, animal and plant quarantine and similar procedures are carried out. Trans-border commercial air transport operations conducted from within the USA to Canadian air transport ports of entry are not deemed to be international through bilateral agreement.[1]
| Airport name | Community | Province | iATA Code | ICAO Code | WMO Code | Passengers[2] | | Calgary International Airport | Calgary | Alberta | YYC | CYYC | 71877 |
| Edmonton International Airport | Edmonton Capital Region | Alberta | YEG | CYEG | 71123 |
| Gander International Airport | Gander | Newfoundland and Labrador | YQX | CYQX | 71803 |
| Greater Moncton Roméo LeBlanc International Airport | Moncton | New Brunswick | YQM | CYQM | 71705 | 300[3] |
| Halifax Stanfield International Airport | Halifax Regional Municipality | Nova Scotia | YHZ | CYHZ | 71395 |
| Hamilton/John C. Munro International Airport | Hamilton | Ontario | YHM | CYHM | 71263 | 110 (450) |
| London International Airport | London | Ontario | YXU | CYXU | 71623 |
| Montréal-Pierre Elliott Trudeau International Airport | Montreal | Quebec | YUL | CYUL | 71627 |
| Ottawa Macdonald-Cartier International Airport | Ottawa | Ontario | YOW | CYOW | 71628 | 165 (450) |
| Québec/Jean Lesage International Airport | Quebec City | Quebec | YQB | CYQB | 71708 |
| Regina International Airport | Regina | Saskatchewan | YQR | CYQR | 71863 | 120 (250) |
| Saskatoon/John G. Diefenbaker International Airport | Saskatoon | Saskatchewan | YXE | CYXE | 71866 | 200 (300) |
| St. John's International Airport | St. John's | Newfoundland and Labrador | YYT | CYYT | 71801 | 165 (450) |
| Toronto Pearson International Airport | Toronto | Ontario | YYZ | CYYZ | 71624 |
| Vancouver International Airport | Vancouver | British Columbia | YVR | CYVR | 71892 |
| Victoria International Airport | Victoria | British Columbia | YYJ | CYYJ | 71799 | 120 (450) |
| Winnipeg International Airport | Winnipeg | Manitoba | YWG | CYWG | 71852 |
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Toronto Pearson is the largest and busiest international airport in Canada; Montréal-Pierre Elliott Trudeau International Airport, however, serves a higher percentage of international passengers.[4]
The following airports are listed in the Canada Flight Supplement, or Water Aerodrome Supplement, published by Nav Canada as an airport of entry—but are not classified as international airports.[5] All these airports, with the exception of military airports, have a Canada Border Services Agency person available but they may not be available 24 hours a day and may only be open part of the week.
| Airport name | Community | Province | Passengers[6] | | Abbotsford International Airport | Abbotsford | British Columbia | 15 |
| Atlin Airport | Atlin | British Columbia | 15 |
| Atlin Water Aerodrome | Atlin | British Columbia | 15 |
| Baie-Comeau Water Aerodrome | Baie-Comeau | Quebec | 15 |
| Beaver Creek Airport | Beaver Creek | Yukon | 15[7] |
| Bedwell Harbour Water Aerodrome | Bedwell Harbour | British Columbia | 15 |
| Billy Bishop Toronto City Airport (Toronto Island) | Toronto | Ontario | 15 |
| Billy Bishop Toronto City Water Aerodrome (Toronto Harbour) | Toronto | Ontario | 15 |
| Boundary Bay Airport | Boundary Bay | British Columbia | 15 |
| Brandon Municipal Airport | Brandon | Manitoba | 15 |
| Brantford Airport | Brantford | Ontario | 15 |
| Bromont (Roland Désourdy) Airport | Bromont | Quebec | 15 |
| Calgary International Airport | Calgary | Alberta |
| Calgary/Springbank Airport | Calgary | Alberta | 15 |
| Campbell River Airport | Campbell River | British Columbia | 15 |
| Campbell River Water Aerodrome | Campbell River | British Columbia | 15 |
| Castlegar Airport | Castlegar | British Columbia | 15 |
| CFB Bagotville | Bagotville | Quebec | 15 |
| CFB Cold Lake | Cold Lake | Alberta | [8] |
| CFB Comox | Comox | British Columbia | 15 |
| CFB Goose Bay | Happy Valley – Goose Bay | Newfoundland and Labrador | 15 |
| CFB Greenwood | Greenwood | Nova Scotia | [9] |
| CFB Shearwater | Dartmouth | Nova Scotia |
| CFB Trenton | Trenton | Ontario | [10] |
| Charlo Airport | Charlo | New Brunswick | 15 |
| Charlottetown Airport | Charlottetown | Prince Edward Island | 60 |
| Cornwall Regional Airport | Cornwall | Ontario | 15 |
| Coronach/Scobey Border Station Airport | Coronach | Saskatchewan | 15 |
| Coutts/Ross International Airport | Coutts | Alberta | 15 |
| Cranbrook/Canadian Rockies International Airport | Cranbrook | British Columbia | 15 |
| Dawson City Airport | Dawson City | Yukon | 30 |
| Dawson City Water Aerodrome | Dawson City | Yukon | 30 |
| Dawson Creek Water Aerodrome | Dawson Creek | British Columbia | 15 |
| Del Bonita/Whetstone International Airport | Del Bonita | Alberta | 15 |
| Drummondville Water Aerodrome | Drummondville | Quebec | 15 |
| Drummondville Airport | Drummondville | Quebec | 15 |
| Dryden Regional Airport | Dryden | Ontario | 15 |
| Dryden Water Aerodrome | Dryden | Ontario | 19 |
| Dunseith/International Peace Garden Airport | International Peace Garden | Manitoba/North Dakota | 15 |
| Edmonton International Airport | Edmonton Capital Region | Alberta |
| Edmundston Airport | Edmundston | New Brunswick | 15 |
| Florenceville Airport | Florenceville | New Brunswick | 15 |
| Fort Frances Municipal Airport | Fort Frances | Ontario | 15 |
| Fort Frances Water Aerodrome | Fort Frances | Ontario | 15 |
| Gander International Airport | Gander | Newfoundland and Labrador |
| Goderich Airport | Goderich | Ontario | 15 |
| Goose (Otter Creek) Water Aerodrome | Happy Valley-Goose Bay | Newfoundland and Labrador | 15 |
| Gore Bay-Manitoulin Airport | Gore Bay | Ontario | 15 |
| Grand Falls Airport | Grand Falls | New Brunswick | 15 |
| Grand Manan Airport | Grand Manan Island | New Brunswick | 15 |
| Greater Fredericton Airport | Fredericton | New Brunswick | 55 |
| Greater Moncton Roméo LeBlanc International Airport | Moncton | New Brunswick | 300[11] |
| Guelph Airport | Guelph | Ontario | 15 |
| Halifax Stanfield International Airport | Halifax Regional Municipality | Nova Scotia |
| Hamilton/John C. Munro International Airport | Hamilton | Ontario | 110 (450) |
| Hanover Saugeen Airport | Hanover | Ontario | 15 |
| Îles-de-la-Madeleine Airport | Magdalen Islands | Quebec | 15 |
| Inuvik (Mike Zubko) Airport | Inuvik | Northwest Territories | 15 |
| Inuvik/Shell Lake Water Aerodrome | Inuvik | Northwest Territories | 15 |
| Iqaluit Airport | Iqaluit | Nunavut | 15 |
| J.A. Douglas McCurdy Sydney Airport (Sydney Airport) | Sydney | Nova Scotia | 44 (200) |
| Kamloops Airport | Kamloops | British Columbia | 15 |
| Kamloops Water Aerodrome | Kamloops | British Columbia | 15 |
| Kelowna International Airport | Kelowna | British Columbia |
| Kenora Airport | Kenora | Ontario |
| Kenora Water Aerodrome | Kenora | Ontario | 15 |
| Kingston/Norman Rogers Airport | Kingston | Ontario | 30 |
| Lac-à-la-Tortue Airport | Lac-à-la-Tortue | Quebec | 15 |
| Lac-à-la-Tortue Water Aerodrome | Lac-à-la-Tortue | Quebec | 15 |
| Lachute Airport | Lachute | Quebec | 15 |
| Lake Simcoe Regional Airport | Barrie | Ontario | 24 |
| Lethbridge County Airport | Lethbridge | Alberta | 15 |
| London International Airport | London | Ontario | 180 (450) |
| Masset Water Aerodrome | Masset | British Columbia | 15 |
| Montréal/St-Hubert Airport | Montreal | Quebec | 15 |
| Montréal-Mirabel International Airport | Montreal | Quebec | 15 |
| Montréal-Pierre Elliott Trudeau International Airport | Montreal | Quebec |
| Moose Jaw/Air Vice Marshal C.M. McEwen Airport | Moose Jaw | Saskatchewan | [12] |
| Muskoka Airport | Muskoka District Municipality | Ontario | 15 |
| Nanaimo Airport | Nanaimo | British Columbia | 30 |
| Nanaimo Harbour Water Aerodrome | Nanaimo | British Columbia | 15 |
| North Bay Water Aerodrome | North Bay | Ontario | 15 |
| North Bay/Jack Garland Airport | North Bay | Ontario | 15 |
| Old Crow Airport | Old Crow | Yukon | 15 |
| Orillia Airport | Orillia | Ontario | 15 |
| Orillia/Lake St John Water Aerodrome | Orillia | Ontario | 15 |
| Oshawa Airport | Oshawa | Ontario | 50 |
| Ottawa Macdonald-Cartier International Airport | Ottawa | Ontario | 165 (450) |
| Owen Sound/Billy Bishop Regional Airport | Owen Sound | Ontario | 15 |
| Pelee Island Airport | Pelee | Ontario | 15 |
| Penticton Regional Airport | Penticton | British Columbia | 30 |
| Penticton Water Aerodrome | Penticton | British Columbia | 15 |
| Peterborough Airport | Peterborough | Ontario | 15 |
| Piney Pinecreek Border Airport | Piney | Manitoba | 15 |
| Port Hardy Airport | Port Hardy | British Columbia | 15 |
| Prince George Airport | Prince George | British Columbia | 15 |
| Prince Rupert Airport | Prince Rupert | British Columbia | 15 |
| Prince Rupert/Seal Cove Water Aerodrome | Prince Rupert | British Columbia | 15 |
| Québec/Jean Lesage International Airport | Quebec City | Quebec |
| Québec/Lac St-Augustin Water Aerodrome | Quebec City | Quebec | 15 |
| Rainy River Water Aerodrome | Rainy River | Ontario | 15 |
| Red Lake Airport | Red Lake | Ontario | 15 |
| Regina International Airport | Regina | Saskatchewan | 120 (250) |
| Region of Waterloo International Airport | Regional Municipality of Waterloo | Ontario | 15/180[13] |
| Rivière Rouge/Mont-Tremblant International Inc Airport | Mont-Tremblant | Quebec | 15 |
| Rykerts Water Aerodrome | Rykerts | British Columbia | 15 |
| Saint John Airport | Saint John | New Brunswick | 120 |
| Sand Point Lake Water Aerodrome | Sand Point Lake | Ontario | 15 |
| Sarnia Chris Hadfield Airport | Sarnia | Ontario | 30 |
| Saskatoon/John G. Diefenbaker International Airport | Saskatoon | Saskatchewan | 200 (300) |
| Sault Ste. Marie Airport | Sault Ste. Marie | Ontario | 30 |
| Sault Ste. Marie Water Aerodrome | Sault Ste. Marie | Ontario | 15 |
| Sault Ste. Marie/Partridge Point Water Aerodrome | Sault Ste. Marie | Ontario | 15 |
| Sept-Îles Airport | Sept-Îles | Quebec | 15 |
| Sept-Îles/Lac Rapides Water Aerodrome | Sept-Îles | Quebec | 15 |
| Sherbrooke Airport | Sherbrooke | Quebec | 30 |
| Sioux Lookout Airport | Sioux Lookout | Ontario | 15 |
| St. Catharines/Niagara District Airport | St. Catharines | Ontario | 15 |
| St. John's International Airport | St. John's | Newfoundland and Labrador | 165 (450) |
| St. Stephen Airport | St. Stephen | New Brunswick | 15 |
| St. Thomas Municipal Airport | St. Thomas | Ontario | 15 |
| Stephenville International Airport | Stephenville | Newfoundland and Labrador | 30 |
| Stewart Water Aerodrome | Stewart | British Columbia | 15 |
| St-Georges Airport | Saint-Georges | Quebec | 15 |
| Stratford Municipal Airport | Stratford | Ontario | 15 |
| Sudbury Airport | Greater Sudbury | Ontario | 15 |
| Thunder Bay International Airport | Thunder Bay | Ontario | 40 |
| Thunder Bay Water Aerodrome | Thunder Bay | Ontario | 15 |
| Toronto Pearson International Airport | Toronto | Ontario |
| Toronto/Buttonville Municipal Airport | Buttonville | Ontario | 15 |
| Trois-Rivières Airport | Trois-Rivières | Quebec | 15 |
| Tuktoyaktuk Airport | Tuktoyaktuk | Northwest Territories | 15 |
| Vancouver Harbour Water Aerodrome | Vancouver | British Columbia | 15 |
| Vancouver International Airport | Vancouver | British Columbia |
| Vancouver International Water Aerodrome | Vancouver | British Columbia | 15 |
| Victoria Inner Harbour Airport | Victoria | British Columbia | 15 |
| Victoria International Airport | Victoria | British Columbia | 120 (450) |
| Victoria Airport Water Aerodrome | Victoria | British Columbia | 15 |
| Whitehorse International Airport | Whitehorse | Yukon | 50 (225) |
| Whitehorse Water Aerodrome | Whitehorse | Yukon | 15 |
| Wiarton Airport | Wiarton | Ontario | X |
| Windsor Airport | Windsor | Ontario | 325 (450) |
| Wingham/Richard W. LeVan Aerodrome | Wingham | Ontario | 15 |
| Winnipeg International Airport | Winnipeg | Manitoba |
| Winterland Airport | Winterland | Newfoundland and Labrador | 15 |
| Yarmouth Airport | Yarmouth | Nova Scotia | 110 |
| Yellowknife Airport | Yellowknife | Northwest Territories | 15 |
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1. ^
2. ^This number refers to the processing capacity of the Canada Border Services Agency. Where no number is given it indicates that the airport is able to handle an aircraft of any size. The numbers in parentheses indicate the number of passengers that may be handled if the aircraft is able to unload in stages. An airport with the number 15 indicates that only general aviation aircraft with 15 or fewer passengers may be handled.
3. ^[https://www.cbsa-asfc.gc.ca/do-rb/offices-bureaux/114-eng.html Greater Moncton Roméo LeBlanc International Airport] at Canada Border Services Agency
4. ^Enplaned / Deplaned Passengers {{webarchive|url=https://web.archive.org/web/20080216033216/http://www.admtl.com/uploadedFiles/a_propos/salle_de_presse/Pax%20Aout07-A.pdf |date=2008-02-16 }}
5. ^
6. ^This number refers to the processing capacity of the Canada Border Services Agency. Where no number is given it indicates that the airport is able to handle an aircraft of any size. The numbers in parentheses indicate the number of passengers that may be handled if the aircraft is able to unload in stages. An airport with the number 15 indicates that only general aviation aircraft with 15 or fewer passengers may be handled.
7. ^Seasonal
8. ^Military aircraft and personnel only
9. ^Military flights only
10. ^No civilian aircraft except for emergencies or MEDIVAC's
11. ^[https://www.cbsa-asfc.gc.ca/do-rb/offices-bureaux/114-eng.html Greater Moncton Roméo LeBlanc International Airport] at Canada Border Services Agency
12. ^15 Wing - Moose Jaw aircraft only
13. ^180 passengers with 2 hours prior notice