Cheap flight tickets from Toronto to Washington Dulles

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Flight deals from Toronto to Washington Dulles Airport

Looking for a cheap last-minute deal or the best return flight from Toronto to Washington Dulles Airport? If you want to travel next month, return fares start from RM729. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Toronto to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Toronto to Washington Dulles flights are currently cheapest in April.

Direct flights from Toronto to Washington Dulles

Toronto to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundRM726
Cheapest month to flyMarch
Average flight time1 hr, 31 mins
Most popular airlineAir Canada
Average flights per week216

Finding cheap flights from Toronto to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Toronto to Washington Dulles is RM726. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 31 minutes is the average flight time from Toronto to Washington Dulles.
Air Canada, United and Republic Airways fly direct from Toronto to Washington Dulles.
As of March 2026, there are 216 flights per week flying from Toronto to Washington Dulles.
The cheapest month to fly from Toronto to Washington Dulles is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Toronto to Washington Dulles Airport on Monday, 30 March 2026.
Yes – the average flight time is 1 hour and 31 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Washington Dulles is Porter Airlines .

Flying from Toronto to Washington Dulles International Airport (IAD): What you need to know

  • When planning your flight from Toronto to Washington Dulles International Airport (IAD), there's a good selection of airports you can start your trip from. Pearson International Airport (YYZ), Billy Bishop Toronto City Airport (YTZ) and Region of Waterloo International Airport (YKF) are Toronto's main terminals.

  • Take off on a direct Toronto to Washington Dulles International Airport flight and you'll be in the air for around 1 hour 35 minutes.

  • Washington Dulles International Airport is located in Washington DC. The city's timezone is UTC-4 — the same as Toronto.

  • Pearson International Airport (YYZ) to Washington Dulles International Airport (IAD) is the most popular route. There are 43 direct departures a week to pick from. If you have things to do before leaving, take the last flight with United Airlines at 7:47pm. Opt for the first YYZ to IAD departure with United Airlines at 6am if you'd rather get going earlier.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your flight from Toronto to IAD.

  • If you're taking off during a major holiday or other peak period, allow for even more time. Arrive two hours before domestic flights and up to four hours before international departures. Queues at security and check-in will be longer.

Airports in Toronto

Pearson International Airport (YYZ)

  • Pearson International Airport (YYZ) is a convenient option for travelling directly to your destination. Nonstop flights from Toronto to Washington Dulles International Airport (IAD) depart from this terminal.

  • When leaving from YYZ, you can catch a direct flight from Toronto to Washington Dulles International Airport with United Airlines.

  • Most travellers choose to fly with United Airlines from YYZ to IAD.

  • The carrier with the best punctuality score on this route is Air Canada. Its services land as scheduled 76.9% of the time.

  • Located around 27 kilometres from the centre of Toronto, YYZ can be reached in about 25 minutes by car, depending on traffic. The journey by public transport is roughly 50 minutes.

  • In search of a convenient hotel close to Pearson International Airport? If you've booked an early flight from Toronto to Washington Dulles International Airport, these accommodation options will have you sleeping moments from your departure gate:

  • Of all flights leaving Pearson International Airport, 63.97% land on time at their destination.

Billy Bishop Toronto City Airport (YTZ)

  • Planning to leave from Billy Bishop Toronto City Airport (YTZ)? Direct Toronto to Washington Dulles International Airport (IAD) plane tickets are available from here.

  • Get on your direct flight from Toronto to IAD with Porter Airlines. This is one of the top airlines that operates this route out of YTZ.

  • Porter Airlines is the most popular choice for passengers flying from YTZ to IAD.

  • Flights between Billy Bishop Toronto City Airport and Washington Dulles International Airport are more likely to arrive as scheduled with Porter Airlines compared to other carriers.

  • YTZ is about 3 kilometres from central Toronto. It'll take 35 minutes or so to get to the airport in a car from the city centre. Public transport takes roughly 40 minutes.

  • Want to enjoy an extra night away before catching your Toronto to IAD flight? Kick back in a hotel near Billy Bishop Toronto City Airport before your holiday officially begins. Here's where you can stay:

  • Billy Bishop Toronto City Airport has an on-time performance of 62.09%. This figure highlights how frequently flights departing from this airport arrive at their destination on schedule.

Region of Waterloo International Airport (YKF)

  • The journey to YKF from central Toronto is around 4 hours 5 minutes by public transport. If you're planning to travel by car, it'll take you about 1 hour 15 minutes to cover the 105 kilometres or so.

  • Make catching an early Toronto to Washington Dulles International Airport flight one of the easiest parts of your trip. Stay at one of these accommodation options near Region of Waterloo International Airport and get to your gate feeling relaxed and unhurried:

  • The on-time performance rate of YKF is 63.64%. In simpler terms, that's how frequently flights that depart this airport arrive as planned.

About Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • Washington Dulles International Airport to the centre of Washington DC is roughly 40 kilometres. If you're taking a cab or renting a car, do some research to make your trip as easy as possible. Journey times will vary depending on the time of day and traffic conditions.

  • It'll take around 1 hour 10 minutes when travelling by public transport.

How to find the cheapest flights from Toronto to Washington Dulles International Airport (IAD)

  • Currently, RM434 is the best price we've found for a one-way ticket from Toronto to Washington Dulles International Airport. The cheapest price for a return flight is RM726. Keep in mind fares can change due to demand at the time of booking.

  • Booking ahead of time is often the key to scoring a cheap flight from Toronto to IAD. Prices tend to rise as demand increases, so the closer your departure date, the more you'll likely spend.

  • If you have some flexibility with your travel dates, try using the 'Whole month' tool. It'll show you the cheapest price across each month when searching for your Toronto to Washington Dulles International Airport ticket.

  • Locking in a cheap plane ticket from Toronto to IAD is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as a lower fare pops up.

  • Discover the best deal on a flight from Toronto to Washington Dulles International Airport with the help of the filters. Choose your preferred arrival and departure times, number of stops and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest.'

The best time to fly from Toronto to Washington Dulles International Airport (IAD)

  • Picture the kind of break you want when deciding when to fly. February is the quietest month to go to Washington DC. July is when most people book flights from Toronto to Washington Dulles International Airport (IAD), which may be ideal if you're after more action.

  • When booking your Toronto to IAD plane ticket, consider the kind of weather forecast you're hoping for. July is the warmest month in Washington DC, with temperatures ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • Search for cheap tickets from Toronto to Washington Dulles International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -6ºC (21ºF) and 10ºC (50ºF).

More about Washington DC

Explore more of the United States

  • You've seen Washington DC, now it's time to explore more of the United States. Journey about 225 kilometres north-east to Philadelphia to check off its leading attractions. From Independence Hall to Liberty Bell and Philadelphia Museum of Art, your itinerary will be busy.

  • Around 274 kilometres south-east of Washington DC, Virginia Beach is another favourite stop in the United States. Experience this destination's highlights firsthand at Virginia Beach Oceanfront, Virginia Beach Boardwalk and Resort Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.