Toronto (YTO)Washington-DC (WAS)
- non-stop flights:
- 44–72 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $290number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
20–28 20–28 20–28 20–28 20–28 20–28 20–28 
12–16 12–16 12–16 12–16 12–16 12–16 12–16 
8–12 8–12 8–12 8–12 8–12 8–12 8–12 
4–16 4–16 4–16 4–16 4–16 4–12 4–16 Toronto (YYZ)Washington-DC (WAS)
- non-stop flights:
- 20–26 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesnumber of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
10–12 10–12 10–12 10–12 10–12 10–12 10–12 
6–8 6–8 6–8 6–8 6–8 6–8 6–8 
4–6 4–6 4–6 4–6 4–6 4–6 4–6 Montréal-Pierre Elliott Trudeau International (YUL)Washington-DC (WAS)
- non-stop flights:
- 10–16 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesnumber of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
6–10 6–10 6–10 6–10 6–10 6–10 6–10 
4–6 4–6 4–6 4–6 4–6 4–6 4–6 Quebec (YQB)Washington-DC (WAS)
- non-stop flights:
- 4 per week
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $657number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
0 0 0 0 0 4 0 Ottawa (YOW)Washington-DC (WAS)
- non-stop flights:
- 6–10 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $398number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
4–8 4–8 4–8 4–8 4–8 4–8 4–8 
2 2 2 2 2 2 2