AirHint found the following cheapest one-way flights from Toronto (YTZ) to Washington (IAD)
in May 2025 (see full year ).
One-Way flights
01 May
Porter Airlines (Canada) Ltd
$ 84
direct
17 May
Porter Airlines (Canada) Ltd
$ 86
direct
02 May
Porter Airlines (Canada) Ltd
$ 87
direct
04 May
Porter Airlines (Canada) Ltd
$ 88
direct
07 May
Porter Airlines (Canada) Ltd
$ 88
direct
27 May
Porter Airlines (Canada) Ltd
$ 88
direct
22 May
Porter Airlines (Canada) Ltd
$ 96
direct
09 May
Porter Airlines (Canada) Ltd
$ 112
direct
24 May
Porter Airlines (Canada) Ltd
$ 112
direct
20 May
Porter Airlines (Canada) Ltd
$ 112
direct
Also check the deals for return flights from Toronto to Washington in May .
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers.
Only the cheapest flights are offered.
Select a price to book and secure these cheap prices.