What are the cheapest Canada-to-US flight routes?
The cheapest Canada-to-US flights are short cross-border hops where budget and full-service airlines compete hard for passengers. One-way fares from around C$42 on Air Transat and C$79 on WestJet show up on routes such as Toronto–New York and Vancouver–Seattle. The biggest saving lever is flexibility — flying mid-week, using nearby airports and booking 4–8 weeks ahead.
Which Canada-to-US routes have the lowest fares?
Short-haul routes between major hubs consistently see the lowest base fares because of high flight frequency and airline competition. The table below shows routes where budget fares appear most often.
| Route | Lowest one-way fares seen | Why it is cheap |
|---|---|---|
| Toronto – New York | C$79–120 | High frequency, multiple airlines |
| Vancouver – Seattle | C$60–110 | Very short hop, strong competition |
| Toronto – Chicago | C$90–150 | Major hub-to-hub route |
| Montreal – New York | C$85–130 | Short haul, frequent service |
| Calgary – Las Vegas | C$110–170 | Leisure route with budget carriers |
How can you find the best Canada-to-US deals?
Five habits make the biggest difference. Fly mid-week — Tuesday, Wednesday and Thursday departures are cheaper than weekends. Book on a Thursday, the cheapest day to purchase cross-border tickets. Use nearby airports, such as Hamilton instead of Toronto or Abbotsford instead of Vancouver. Track prices with fare alerts so you book the moment fares dip. And compare total cost, not just the base fare.
Are budget airlines really cheaper?
Ultra-low-cost carriers advertise the lowest headline fares, but their business model relies on unbundling. Before comparing a budget fare to WestJet, Porter or Air Canada, add the cost of a carry-on bag and seat selection — once those are included, the “expensive” airline is sometimes the cheaper choice. Always compare the full price you will actually pay.
Book your Canada-to-US flight with Metairfare
Metairfare compares fares across Canadian and US airlines so you see the real lowest price for your route. For a full overview of routes and costs, read our Canada-to-USA flights guide, or contact Metairfare for a tailored quote.
Frequently Asked Questions
What is the cheapest Canada-to-US route?
Very short hops such as Vancouver–Seattle and Toronto–New York consistently have the lowest base fares thanks to high frequency and airline competition.
Do budget airlines offer the cheapest Canada-to-US flights?
Budget airlines advertise the lowest base fares, but added fees for bags and seats can erase the saving. Always compare the total price including extras.
How can I find cheap last-minute Canada-to-US flights?
Stay flexible on dates and airports, fly mid-week, and use fare alerts. Last-minute deals do appear, but booking 4–8 weeks ahead is more reliable.