- Cheapest round trip
- $553
- Dates
- Oct 22 to Oct 28 (6 nights)
- Flight
- 1 stop on Delta
- Flight time
- About 7 h 49 min each way
- Distance
- About 2,940 km from Toronto
We're still building this route's price history, so we can't yet say how $553 compares. When it drops well below its usual price, it shows up on our deals page.
Check these dates on Google Flights
Fares change constantly. This was the cheapest round trip of about a week that we found; other dates and trip lengths can cost more or less. Always confirm the price before you book, and book with the airline when you can.
What this route has cost recently
The cheapest round trip we found each day since July 30, 2026: as low as $434, typically about $512, and as high as $561. That's $10 more than a week ago.
Cheapest time to fly to Boise
We don't have enough fares for Boise yet to name its cheapest month. Across all routes from Toronto, Tuesday departures and Wednesday returns beat Friday and weekend flights by 6 to 11%, and December is the most expensive month on most routes.
Airlines and nonstop flights
We haven't seen a nonstop from Toronto to Boise; expect at least one connection. The airlines behind the cheapest fares we've found: United (from $543), Delta (from $544), Delta and United (from $694).
More cheap flights from Toronto to the U.S.
OddFare checks the price of every destination from Toronto daily and flags the ones that drop well below normal. See today's deals or browse every route from Toronto.