Washington DC (IAD)Montréal-Pierre Elliott Trudeau International (YUL)
- non-stop flights:
- 3–7 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $335number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
2–5 2–5 2–5 2–5 2–5 2–5 2–5 
1–2 1–2 1–2 1–2 1–2 1–2 1–2 Washington DC (IAD)Toronto (YYZ)
- non-stop flights:
- 5–10 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $358number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
3–6 3–6 3–6 3–6 3–6 3–6 3–6 
2–4 2–4 2–3 2–3 2–3 2–3 2–3