Published at 1600GMT 01MAR23

Star Alliance members Air Canada and United Airlines last week announced planned Transborder service during Northern summer 2023 season. Based on schedule listing in the OAG as of 26FEB23, the two will operate combined daily flights of up to 280 on one-way basis, using the week of 16JUL23 for general reference to July/August 2023 schedule (frequency variations remain in effect for Air Canada in May and June, United in May).

The following frequency comparison is based on schedule listing 13NOV22 vs 26FEB23, for the week of 16JUL23.

United
Overall increase from 425 to 447 weekly one-way flights, equivalent of up to 64 daily.

Chicago O’Hare – Calgary Increase from 13 to 14 weekly
Chicago O’Hare – Montreal Reduce from 20 to 14 weekly
Chicago O’Hare – Ottawa Reduce from 19 to 7 weekly
Chicago O’Hare – Toronto Increase from 38 to 40 weekly
Denver – Calgary Reduce from 3 to 2 daily
Denver – Toronto Increase from 13 to 14 weekly
Denver – Vancouver Increase from 2 to 3 daily
Houston – Calgary Reduce from 14 to 12 weekly
Houston – Vancouver Increase from 1 to 2 daily
Los Angeles – Vancouver Increase from 1 to 2 daily
Newark – Toronto Increase from 35 to 60 weekly (Previously filed up to 63 weekly)
San Francisco – Calgary Reduce from 2 to 1 daily
San Francisco – Toronto Reduce from 2 to 1 daily
San Francisco – Vancouver Increase from 28 to 41 weekly
Washington Dulles – Montreal Reduce from 3 to 2 daily
Washington Dulles – Toronto Reduce from 4 to 3 daily

Air Canada
Overall reduction from 1802 to 1512 weekly one-way flights, equivalent of 216 daily.

Calgary – Los Angeles Reduce from 2 to 1 daily
Halifax – Boston Reduce from 2 to 1 daily
Montreal – Boston Reduce from 5 to 4 daily
Montreal – Chicago O’Hare Reduce from 5 to 3 daily
Montreal – Denver Reduce from 2 to 1 daily
Montreal – Fort Lauderdale Reduce from 3 to 2 daily
Montreal – Las Vegas Reduce from 2 to 1 daily
Montreal – Phoenix Increase from 2 to 3 weekly
Montreal – San Diego Increase from 3 to 7 weekly
Montreal – San Francisco Reduce from 21 to 20 weekly
Montreal – Washington Reagan Increase from 2 to 3 daily
Ottawa – Newark Reduce from 3 to 1 daily
Ottawa – Washington Reagan Reduce from 2 to 1 daily
Toronto – Atlanta Reduce from 35 to 27 weekly
Toronto – Austin Reduce from 2 to 1 daily
Toronto – Baltimore/Washington Reduce from 21 to 20 weekly
Toronto – Boston Reduce from 7 to 5 daily
Toronto – Chicago O’Hare Reduce from 56 to 48 weekly
Toronto – Cleveland Reduce from 21 to 20 weekly
Toronto – Columbus OH Reduce from4 to 2 daily
Toronto – Dallas/Ft. Worth Reduce from 4 to 2 daily
Toronto – Detroit Reduce from 4 to 3 daily
Toronto – Fort Myers Reduce from 4 to 3 weekly
Toronto – Houston Reduce from 3 to 2 daily
Toronto – Indianapolis Reduce from 14 to 13 weekly
Toronto – Los Angeles Reduce from 6 to 5 daily
Toronto – Minneapolis/St. Paul Reduce from 4 to 3 daily
Toronto – Nashville Reduce from 14 to 13 weekly
Toronto – New Orleans Reduce from 7 to 3 weekly
Toronto – New York LaGuardia Reduce from 91 to 83 weekly
Toronto – Orlando Increase from 3 to 4 daily
Toronto – Philadelphia Reduce from 5 to 3 daily
Toronto – Pittsburgh Reduce from 4 to 3 daily
Toronto – Portland OR Increase from 4 to 7 weekly
Toronto – St. Louis Reduce from 3 to 2 daily
Toronto – San Diego Increase from 1 to 2 daily
Toronto – Tampa Reduce from 2 to 1 daily
Vancouver – Austin Reduce from 4 to 2 weekly
Vancouver – Boston Reduce from 7 to 6 weekly
Vancouver – Chicago O’Hare Reduce from 2 to 1 daily
Vancouver – Denver Reduce from 3 to 2 daily
Vancouver – Los Angeles Reduce from 6 to 5 daily
Vancouver – Newark Increase from 1 to 2 daily
Vancouver – Phoenix Increase from 1 to 2 daily
Vancouver – Portland OR Reduce from 4 to 3 daily
Vancouver – Seattle Reduce from 6 to 5 daily

The following frequency comparison of reduce and increase is based on schedule listing for US calendar week 29 of 2019 (14-20JUL19) vs 2023 (16-22JUL23), as of 26FEB23.

United
Frequency-wise United operates 79% of 2019 schedule (561 weekly one-way flights in US calendar week 29 of 2019)

Chicago O’Hare – Calgary Reduce from 22 to 14 weekly
Chicago O’Hare – Montreal Reduce from 21 to 14 weekly
Chicago O’Hare – Toronto Reduce from 48 to 40 weekly
Chicago O’Hare – Vancouver Reduce from 29 to 14 weekly
Denver – Calgary Reduce from 27 to 14 weekly
Houston – Toronto Reduce from 21 to 14 weekly
Newark – Montreal Increase from 20 to 21 weekly
Newark – Ottawa Increase from 19 to 21 weekly
Newark – Quebec City Reduce from 21 to 14 weekly
Newark – Toronto Increase from 26 to 60 weekly
San Francisco – Calgary Reduce from 2 to 1 daily
San Francisco – Toronto Reduce from 2 to 1 daily
San Francisco – Vancouver Increase from 36 to 41 weekly
Washington Dulles – Montreal Reduce from 20 to 14 weekly
Washington Dulles – Toronto Reduce from 28 to 21 weekly

Air Canada
Frequency-wise Air Canada operates 86% of 2019 schedule (1753 weekly one-way flights in US calendar week 29 of 2019)

Calgary – Los Angeles Reduce from 2 to 1 daily
Halifax – Boston Reduce from 2 to 1 daily
Montreal – Boston Reduce from 34 to 28 weekly
Montreal – Chicago O’Hare Reduce from 5 to 3 daily
Montreal – Denver Reduce from 2 to 1 daily
Montreal – Las Vegas Reduce from 2 to 1 daily
Montreal – Miami Increase from 11 to 14 weekly
Montreal – Newark Increase from 26 to 28 weekly
Montreal – New York LaGuardia Increase from 55 to 56 weekly
Montreal – Philadelphia Increase from 13 to 14 weekly
Montreal – San Francisco Reduce from 21 to 20 weekly
Montreal – Washington Reagan Increase from 2 to 3 daily
Ottawa – Newark Reduce from 18 to 7 weekly
Ottawa – Washington Reagan Reduce from 12 to 7 weekly
Toronto – Atlanta Reduce from 34 to 27 weekly
Toronto – Austin Reduce from 13 to 7 weekly
Toronto – Baltimore/Washington Reduce from 21 to 20 weekly
Toronto – Boston Reduce from 47 to 35 weekly
Toronto – Chicago O’Hare Reduce from 56 to 48 weekly
Toronto – Cincinnati Increase from 19 to 21 weekly
Toronto – Cleveland Reduce from 27 to 20 weekly
Toronto – Columbus OH Reduce from 26 to 14 weekly
Toronto – Dallas/Ft. Worth Reduce from 27 to 14 weekly
Toronto – Denver Reduce from 3 to 2 daily
Toronto – Detroit Reduce from 34 to 21 weekly
Toronto – Fort Myers Reduce from 4 to 3 weekly
Toronto – Hartford Reduce from 3 to 2 daily
Toronto – Houston Reduce from 3 to 2 daily
Toronto – Indianapolis Reduce from 20 to 13 weekly
Toronto – Los Angeles Reduce from 41 to 35 weekly
Toronto – Nashville Reduce from 21 to 13 weekly
Toronto – New Orleans Reduce from 7 to 3 weekly
Toronto – New York LaGuardia Reduce from 84 to 83 weekly
Toronto – Orlando Increase from 3 to 4 daily
Toronto – Philadelphia Reduce from 29 to 21 weekly
Toronto – Pittsburgh Reduce from 4 to 3 daily
Toronto – Raleigh/Durham Reduce from 4 to 3 daily
Toronto – St. Louis Reduce from 3 to 2 daily
Toronto – San Diego Increase from 1 to 2 daily
Toronto – Tampa Reduce from 2 to 1 daily
Vancouver – Anchorage Reduce from 2 to 1 daily
Vancouver – Boston Reduce from 7 to 6 weekly
Vancouver – Chicago O’Hare Reduce from 2 to 1 daily
Vancouver – Denver Reduce from 20 to 14 weekly
Vancouver – Honolulu Increase from 4 to 7 weekly
Vancouver – Kahului Increase from 3 to 7 weekly
Vancouver – Las Vegas Increase from 1 to 2 daily
Vancouver – Los Angeles Reduce from 6 to 5 daily
Vancouver – Newark Increase from 1 to 2 daily
Vancouver – Phoenix Increase from 1 to 2 daily
Vancouver – Portland OR Reduce from 4 to 3 daily
Vancouver – Seattle Reduce from 6 to 5 daily

Following United routes previously operated in 2019 remains cancelled in 2023:
Chicago O’Hare – Halifax
Chicago O’Hare – Quebec City
Chicago O’Hare – Winnipeg
Denver – Winnipeg
Houston – Edmonton
Newark – Halifax
Washington Dulles – Vancouver (replaced by Air Canada in 2023)

Following Air Canada routes previously operated in 2019 remains cancelled in 2023:
Calgary – Houston
Calgary – Las Vegas
Calgary – Portland OR
Calgary – San Francisco
Montreal – Baltimore/Washington
Montreal – Hartford
Ottawa – Boston
Ottawa – Orlando
Toronto – Memphis
Toronto – Milwaukee
Toronto – Omaha
Toronto – Providence
Toronto – Savannah
Vancouver – Dallas/Ft. Worth
Vancouver – San Jose CA

Previously reported network additions:
Calgary – Washington Dulles 02JUN23 – 30SEP23 1 daily United A319
Montreal – New York JFK eff 26MAR23 1 daily Air Canada Embraer E175
Toronto – New York JFK eff 26MAR23 2 daily Air Canada Embraer E175
Toronto – Sacramento eff 01JUN23 4 weekly Air Canada A220-300
Vancouver – Washington Dulles eff 01JUN23 5 weekly Air Canada 737 MAX 8 (4 from 12OCT23)