Washington DC (IAD) to Toronto (YTO): 346 miles (556 km) great-circle, about 1h 10m nonstop by our estimate. Cheapest fare observed: $299 round-trip on airline P3, nonstop, departing July 3, 2026.
$299 round-trip, airline P3 P32726, departing 2026-07-03 at 16:00, returning 2026-07-05. The recorded itinerary left on a Friday, returning on a Sunday 2 nights later; the fare was observed 69 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $299, it ranked 11th of the 30 round-trip fares we recorded from IAD (median $775). That is 86.5 cents per great-circle mile (round-trip price over one-way distance), above the IAD median of 22.5 cents across 30 round-trip routes.
Routes from IAD of similar length: Atlanta (534 mi) at $122 and Chicago (587 mi) at $210.
airline P3 had the cheapest fare on 2 of 30 IAD routes. It is the 30th longest of the 30 routes we track from IAD.
Of 16 departure airports with a fare to Toronto, Washington DC (IAD) ranked 8th at $299. Lowest: $214 from Edmonton (YEG); highest: $1091 from Bangalore (BLR); 6 nonstop. Cheapest-fare airlines (routes): United Airlines (5), Porter Airlines (3), WestJet (3), airline P3 (1), Flair Airlines (1) and Frontier (1), plus 2 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/Toronto; flight time is our estimate.