Dulles (IAD) to Toronto (YTZ)
Flight time
≈ 1h 29m
Bearing
343° N
Dulles (IAD) to Toronto (YTZ) is 339 miles (545 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–YTZ
Filed traffic dataIn May 2026, Porter Airlines was the only carrier flying nonstop IAD–YTZ; the De Havilland DHC8-400 Dash-8 was the most common aircraft at 100% of departures; flights ran 60% full.
Departures
97
May 2026
Seats
7,566
both directions
Passengers
4,565
both directions
Load factor
60.3%
RPM ÷ ASM
Who flies IAD–YTZ?
Porter Airlines was the only carrier to fly nonstop IAD–YTZ in May 2026 (97 departures).
- P3
Porter Airlines
97 departures · 7,566 seats
Share of departures100.0%60.3%
Load
What plane flies IAD–YTZ?
In May 2026, the De Havilland DHC8-400 Dash-8 flew 100% of IAD–YTZ departures.
- De Havilland DHC8-400 Dash-8
97 departures · 60.3% load
100.0%
How has IAD–YTZ traffic changed?
Nonstop IAD–YTZ departures rose from 95 in June 2025 to 97 in May 2026.
Monthly nonstop IAD–YTZ traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
95 departures · 5,695 passengers
76.9%
Load
July 2025
94 departures · 5,817 passengers
79.3%
Load
August 2025
97 departures · 6,110 passengers
80.8%
Load
September 2025
94 departures · 3,638 passengers
49.6%
Load
October 2025
102 departures · 4,594 passengers
57.7%
Load
November 2025
97 departures · 3,851 passengers
50.9%
Load
December 2025
106 departures · 4,687 passengers
57.2%
Load
January 2026
47 departures · 1,955 passengers
53.3%
Load
February 2026
40 departures · 1,377 passengers
44.1%
Load
March 2026
50 departures · 2,431 passengers
62.3%
Load
April 2026
66 departures · 2,794 passengers
54.3%
Load
May 2026
97 departures · 4,565 passengers
60.3%
Load
By direction
Each direction is filed separately — they rarely match.
YTZ → IAD
56.3% full
49 departures · 2,152 passengers
IAD → YTZ
64.5% full
48 departures · 2,413 passengers
Nonstop IAD–YTZ traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Toronto
CA
Billy Bishop Toronto City Airport
Coordinates
43.63°N, 79.40°W
Hemisphere
N · W
Frequently asked
How far is Dulles (IAD) from Toronto (YTZ)?
IAD to YTZ is 339 miles (545 km / 294 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to YTZ?
A nonstop covers the 339-mile great-circle distance in roughly 1h 29m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–YTZ?
In May 2026, the De Havilland DHC8-400 Dash-8 flew the largest share of departures (100.0%).
What mileage do I earn flying IAD–YTZ?
Distance-based programs credit off the 339-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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