For four years, United and Air Canada have quietly shared the business of flying between the two countries, coordinating schedules and fares on a set of transborder routes. On October 16, 2026, the two carriers said they want more of that, and the United Air Canada joint venture is now headed for a fresh review in Ottawa with six new routes already set for summer 2027.
The short version for travelers: the expanded deal is not approved yet, but new flights from Louisville, Indianapolis, Newark and Denver have already been announced. Here is how the arrangement works and what it could mean for the miles in your account.
The short answer on the United Air Canada joint venture
The two airlines agreed to renew and widen their Transborder Joint Business Agreement, the formal name for the partnership. Because it lets two competitors plan together, Transport Canada says the Minister of Transport has to sign off under the Canada Transportation Act. Transport Canada has opened a public interest assessment, and the minister can approve the deal, approve it with conditions, or refuse it.
Canadians who want to weigh in can comment through letstalktransportation.ca until November 15, 2026. Neither airline has given a target date for a decision.
How the united air canada partnership works in plain English
A joint venture is not a merger. Both carriers keep their own brands, crews and loyalty programs. What changes is the planning: according to Transport Canada’s notice, on certain Canada-U.S. routes the two carriers jointly handle timetables, pricing, marketing, sales and revenue management.
In practice, the United Air Canada joint venture is why you can find a single ticket that pairs a United flight with an Air Canada flight at one price. The carriers count more than 1,200 connecting itineraries sold with integrated through-fares, plus over 4.3 million passengers flown jointly since the deal began in 2022.
The six new routes for summer 2027
Air Canada published flight numbers and dates for its three additions. United named its three new routes without dates in the joint announcement, then filed its schedules on October 22, according to AeroRoutes. End dates for the United routes have not been published.
| Route | Airline | Season | Frequency |
|---|---|---|---|
| Toronto – Louisville | Air Canada | April 28 to October 31, 2027 | Up to daily (daily from May) |
| Montreal – Indianapolis | Air Canada | June 1 to September 30, 2027 | Daily |
| Edmonton – Newark | Air Canada | June 1 to October 17, 2027 | 4 times a week |
| Newark – St. John’s | United | From June 24, 2027 | Daily |
| Denver – Ottawa | United | From April 29, 2027 | Daily |
| Denver – Quebec City | United | From May 29, 2027 | Once a week |
Existing routes are getting attention too. Air Canada is moving Edmonton to San Francisco onto the larger Airbus A220, United plans more Washington Dulles flights to Quebec City, and daily United seats between Denver and Winnipeg rise 65%. The full details sit in Air Canada’s release.
Why the airlines want a bigger deal
The pitch is network reach. The pair says the partnership has launched 20 new routes between the two countries since 2022, six of them this year, and now touches 10 Canadian gateways. A wider United Air Canada joint venture would give both sides more room to fill each other’s planes from their hubs.
Regulators will look at the other side of that coin. Transport Canada says its review will weigh economic impacts and effects on competition, and the minister framed the goal as making sure any expanded cooperation benefits Canadians.
What it means for your MileagePlus and Aeroplan points
Nothing about the United Air Canada joint venture changes your points today. The announcement does not mention earning rates, elite status credit, award pricing or upgrades in either program, so treat any claim of new mileage perks as unconfirmed.
The practical upside is more choice. If you live in Louisville, Indianapolis or Denver, nonstop options to Canada get better next summer, and more two-airline trips can be booked as a single through-fare. A common snag is assuming every codeshare earns the same as flying your own airline. Check the partner earning chart of the program you credit to before you book.
If you hold Aeroplan points from a Chase card, our look at the Chase Aeroplan credit card covers how those points are earned. For United flyers building a balance, see how to transfer Wyndham points to United.
Common misconceptions about the deal
- It is already final. Not yet. The renewal and expansion of the United Air Canada joint venture still need Transport Canada approval, and conditions are possible.
- The two airlines are combining. No. They coordinate on certain routes but stay separate carriers with separate programs.
- The new routes depend on approval. The release does not say so. The 2027 flights were announced alongside the renewal, and neither carrier tied them to the outcome.
Frequently asked questions
Do Air Canada flights count towards United status?
The October 16 announcement does not address status earning. Neither airline said the renewed deal changes how Air Canada flights credit to MileagePlus, so check United’s partner earning chart before you book.
When does the expanded united air canada joint venture take effect?
There is no date yet. Transport Canada must first finish its public interest assessment, and public comments are open until November 15, 2026.
Is the United Air Canada joint venture a merger?
No. On selected transborder routes the carriers plan timetables, pricing, sales and marketing together, but each keeps its own brand and loyalty program.
Should you plan summer 2027 Canada trips around the new routes?
If you live near Louisville, Indianapolis, Edmonton or Denver, the new nonstops are worth a look now, since both airlines have already put them on the 2027 map. Everyone else can watch the United Air Canada joint venture decision from the sidelines, because nothing about your miles has changed. The schedule moved first; the paperwork is still catching up.
