Cheap flights from Ontario to Washington, D.C. from C$ 158
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Washington, D.C. departing on 28/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights
These are some of the best round-trip flight deals from Ontario to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to Washington, D.C..
Cheap last-minute flights
Planning a quick getaway from Ontario to Washington, D.C.? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Washington, D.C., so you can enjoy a seamless trip without layovers.
Air Transat flights from Region of Ontario to Washington, D.C. Dulles Intl Airport
Our best Air Transat deals on Region of Ontario to Washington, D.C. Dulles Intl Airport flight tickets
Air Transat![Air Transat]()
6 Jun![Air Transat]()
10 Jun
YTZ8:45 a.m.Toronto Island
1h 31m
IAD10:16 a.m.Washington, D.C. Dulles Intl
IAD4:20 p.m.Washington, D.C. Dulles Intl
1h 33m
YTZ5:53 p.m.Toronto Island
Air Transat![Air Transat]()
6 Jun![Air Transat]()
10 Jun
YTZ1:35 p.m.Toronto Island
1h 31m
IAD3:06 p.m.Washington, D.C. Dulles Intl
IAD4:20 p.m.Washington, D.C. Dulles Intl
1h 33m
YTZ5:53 p.m.Toronto Island
Porter Airlines flights from Region of Ontario to Washington, D.C. Dulles Intl Airport
Our best Porter Airlines deals on Region of Ontario to Washington, D.C. Dulles Intl Airport flight tickets
Porter Airlines![Porter Airlines]()
3 Jun![Porter Airlines]()
4 Jun
YTZ1:35 p.m.Toronto Island
1h 31m
IAD3:06 p.m.Washington, D.C. Dulles Intl
IAD4:20 p.m.Washington, D.C. Dulles Intl
1h 33m
YTZ5:53 p.m.Toronto Island
Porter Airlines![Porter Airlines]()
4 Jun![Porter Airlines]()
10 Jun
YTZ1:35 p.m.Toronto Island
1h 31m
IAD3:06 p.m.Washington, D.C. Dulles Intl
IAD4:20 p.m.Washington, D.C. Dulles Intl
1h 33m
YTZ5:53 p.m.Toronto Island
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Region of Ontario to Washington, D.C. Dulles Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?
The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Region of Ontario is in January. Flight prices, which tend to average around C$ 315, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. Dulles Intl Airport in January, then you should wait until March to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 326.
What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?
According to our data, Friday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Region of Ontario. The lowest ticket price found for a Friday departure recently was C$ 513. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Monday is C$ 829.
What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Our most recent data shows that the best time of day to fly to Washington, D.C. Dulles Intl Airport is in the afternoon. Flights from Region of Ontario to Washington, D.C. Dulles Intl Airport during this time can be as low as C$ 460. In the evening is when there is more demand to fly to Washington, D.C. Dulles Intl Airport, so prices are often more expensive at around C$ 727 per ticket.
What is the cheapest Ontario to Washington, D.C. Dulles Intl flight route?
Fly from Toronto Island to Washington, D.C. Dulles Intl for the best Ontario - Washington, D.C. Dulles Intl flight prices
How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?
You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Region of Ontario when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around C$ 410 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Region of Ontario for as low as C$ 354 on momondo.
What cabin class options are available on Ontario to Washington, D.C. Dulles Intl flights?
There are 4 cabin classes available to choose from on Ontario to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to Washington, D.C. Dulles Intl?
Porter Airlines, United Airlines, and Air Canada are the most popular carriers operating from Ontario to Washington, D.C. Dulles Intl
Which airlines fly to Washington, D.C. Dulles Intl Airport?
Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Region of Ontario according to our data. Air Canada is the first choice among our users, with 67% of people opting to fly with this airline when travelling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Region of Ontario to Washington, D.C. Dulles Intl Airport on average per day?
As of May 2025, there are 31 flights per day flying from Region of Ontario to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 6:00a.m., with 49% of flights taking off at noon.
How many flights depart from Region of Ontario to Washington, D.C. Dulles Intl Airport on average per week?
As of May 2025, there are 217 flights per week flying from Region of Ontario to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Wed, with 20% of flights taking off on this day.
Cheap Region of Ontario to Washington, D.C. Dulles Intl Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Washington, D.C. Dulles Intl Airport
When did momondo last update prices for flights from Ontario to Washington, D.C. Dulles Intl Airport?
Prices for flights from Ontario to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from Ontario to Washington, D.C. Dulles Intl Airport?
As of May 2025, there are 5 operators available to choose from for flights from Ontario to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Ontario to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Region of Ontario to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for flights between Region of Ontario and Washington, D.C. Dulles Intl Airport, the leading plane model is De Havilland (Bombardier) DHC-8-400 Dash 8Q, making up 21.31% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 18.39%, Embraer 175 with 11.27%, and Embraer 170 with 7.68%.
Best airlines flying from Region of Ontario to Washington, D.C. Dulles Intl Airport
Compare and see reviews for airlines that fly from Region of Ontario to Washington, D.C. Dulles Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 204 | Free Cancellation | Rating 7.8 385 reviews | |||
| PriceFrom C$ 225 | Free Cancellation | Rating 8.0 285 reviews | |||
| PriceFrom C$ 260 | Free Cancellation | Rating 7.0 9,252 reviews | |||
| PriceFrom C$ 267 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom C$ 466 | Free Cancellation | Rating 7.2 2,826 reviews |
Travelling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWinchester
Silver Spring
National Harbor
Herndon
Linthicum Heights
Manassas
Fredericksburg
Bethesda
Reston
Laurel
Pikesville
Chantilly
Capitol Heights
Arlington
Gettysburg
Ashburn
Woodbridge
Charles Town
Alexandria
Rockville
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Washington, D.C.?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Ontario.
Can I find flights from Ontario to Washington, D.C. with flexible booking policies on momondo?
Flights from Ontario to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Ontario to Washington, D.C.?
Once all potential Ontario to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Ontario to Washington, D.C. right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ontario to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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