Cheap flights from Ontario to Washington, D.C. from $125

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 10/16. 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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Porter Airlines Logo
8:55 am - 10:24 amYTZ-IAD
1h 29mnonstop
Porter Airlines Logo
11:40 am - 1:10 pmIAD-YTZ
1h 30mnonstop
$189Porter Airlines
Find Deal
vie., nov. 14 - dom., nov. 16
Porter Airlines Logo
11:00 am - 12:29 pmYTZ-IAD
1h 29mnonstop
Porter Airlines Logo
6:30 pm - 8:00 pmIAD-YTZ
1h 30mnonstop
$190Porter Airlines
Find Deal
sáb., nov. 22 - mar., dic. 2
Air Canada Logo
8:10 am - 9:38 amYYZ-IAD
1h 28mnonstop
Air Canada Logo
4:30 pm - 5:58 pmIAD-YYZ
1h 28mnonstop
$192Air Canada
Find Deal
sáb., oct. 25 - mar., oct. 28
Air Canada Logo
8:10 am - 9:38 amYYZ-IAD
1h 28mnonstop
Air Canada Logo
9:45 am - 3:04 pmIAD-YYZ
5h 19m1 stop
$199Air Canada
Find Deal
jue., oct. 23 - lun., oct. 27
Multiple Airlines Logo
1:35 pm - 3:06 pmYTZ-IAD
1h 31mnonstop
Multiple Airlines Logo
9:45 am - 2:55 pmIAD-YTZ
5h 10m1 stop
$212Multiple Airlines
Find Deal
vie., oct. 24 - dom., oct. 26
Multiple Airlines Logo
8:45 am - 10:16 amYTZ-IAD
1h 31mnonstop
Multiple Airlines Logo
9:45 am - 2:55 pmIAD-YTZ
5h 10m1 stop
$214Multiple Airlines
Find Deal
jue., oct. 23 - lun., oct. 27
Air Transat Logo
1:35 pm - 3:06 pmYTZ-IAD
1h 31mnonstop
Air Transat Logo
4:20 pm - 5:53 pmIAD-YTZ
1h 33mnonstop
$215Air Transat
Find Deal
mar., oct. 21 - sáb., oct. 25
Air Transat Logo
8:55 am - 10:24 amYTZ-IAD
1h 29mnonstop
Air Transat Logo
11:40 am - 1:10 pmIAD-YTZ
1h 30mnonstop
$216Air Transat
Find Deal
dom., oct. 26 - mié., oct. 29
United Airlines Logo
7:40 pm - 9:20 pmYYZ-IAD
1h 40mnonstop
United Airlines Logo
10:11 pm - 11:46 pmIAD-YYZ
1h 35mnonstop
$217United Airlines
Find Deal
mar., oct. 28 - lun., nov. 3
United Airlines Logo
7:40 pm - 9:20 pmYYZ-IAD
1h 40mnonstop
United Airlines Logo
10:11 pm - 11:46 pmIAD-YYZ
1h 35mnonstop
$218United Airlines
Find Deal
sáb., nov. 15 - lun., nov. 24

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
Nov 14
YTZ8:55 amToronto Island
1h 29m
IAD10:24 amWashington, D.C. Dulles Intl
Nov 16
IAD11:40 amWashington, D.C. Dulles Intl
1h 30m
YTZ1:10 pmToronto Island
Porter Airlines
Nov 22
YTZ11:00 amToronto Island
1h 29m
IAD12:29 pmWashington, D.C. Dulles Intl
Dec 2
IAD6:30 pmWashington, D.C. Dulles Intl
1h 30m
YTZ8:00 pmToronto Island
Porter Airlines
Oct 23
YTZ1:35 pmToronto Island
1h 31m
IAD3:06 pmWashington, D.C. Dulles Intl
Oct 25
IAD4:20 pmWashington, D.C. Dulles Intl
1h 33m
YTZ5:53 pmToronto Island

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
Oct 21
YTZ1:35 pmToronto Island
1h 31m
IAD3:06 pmWashington, D.C. Dulles Intl
Oct 25
IAD4:20 pmWashington, D.C. Dulles Intl
1h 33m
YTZ5:53 pmToronto Island
Air Transat
Oct 26
YTZ8:55 amToronto Island
1h 29m
IAD10:24 amWashington, D.C. Dulles Intl
Oct 29
IAD11:40 amWashington, D.C. Dulles Intl
1h 30m
YTZ1:10 pmToronto Island
Air Transat
Oct 16
YTZ8:45 amToronto Island
1h 31m
IAD10:16 amWashington, D.C. Dulles Intl
Oct 20
IAD11:35 amWashington, D.C. Dulles Intl
1h 33m
YTZ1:08 pmToronto Island

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated octubre 2, 2025.
Use the filters below to find and compare flights from Ontario to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

vie. 11/14

8:55 am-10:24 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

dom. 11/16

11:40 am-1:10 pm

Nonstop1h 30m

$189

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

sáb. 11/22

11:00 am-12:29 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

mar. 12/2

6:30 pm-8:00 pm

Nonstop1h 30m

$190

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

sáb. 10/25

8:10 am-9:38 am

Nonstop1h 28m

Washington, D.C. Dulles Intl

mar. 10/28

4:30 pm-5:58 pm

Nonstop1h 28m

$192

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

jue. 10/23

8:10 am-9:38 am

Nonstop1h 28m

Washington, D.C. Dulles Intl

lun. 10/27

9:45 am-3:04 pm

1 stop5h 19m

$199

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

vie. 10/24

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

dom. 10/26

9:45 am-2:55 pm

1 stop5h 10m

$212

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

jue. 10/23

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

lun. 10/27

9:45 am-2:55 pm

1 stop5h 10m

$214

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

mar. 10/21

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

sáb. 10/25

4:20 pm-5:53 pm

Nonstop1h 33m

$215

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

dom. 10/26

8:55 am-10:24 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

mié. 10/29

11:40 am-1:10 pm

Nonstop1h 30m

$216

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

mar. 10/28

7:40 pm-9:20 pm

Nonstop1h 40m

Washington, D.C. Dulles Intl

lun. 11/3

10:11 pm-11:46 pm

Nonstop1h 35m

$217

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

sáb. 11/15

7:40 pm-9:20 pm

Nonstop1h 40m

Washington, D.C. Dulles Intl

lun. 11/24

10:11 pm-11:46 pm

Nonstop1h 35m

$218

Flights are sorted by cheapest round-trip flights first.

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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

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, July is the cheapest month to fly from Region of Ontario to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $195. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of July, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $208.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $300. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Washington, D.C. Dulles Intl Airport for around $454.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Region of Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $277 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $436 on average. Flights to Washington, D.C. Dulles Intl Airport from Region of Ontario in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $287 when searching 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 $255 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.

Can stopping save me money on Region of Ontario to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 11% on your flight if you consider stops on a Region of Ontario to Washington, D.C. Dulles Intl Airport flight.

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

Best Price Found

$124

Fastest flight time

1h 28m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Region of Ontario in the past 72 hours is $124. The best round-trip flight deal from Region of Ontario to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $192.
The fastest flight from Region of Ontario to Washington, D.C. Dulles Intl Airport takes 1h 28m
Direct flights go from Region of Ontario to Washington, D.C. Dulles Intl Airport every day.
  • 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 were last updated today.

  • How many operators does momondo search 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Region of Ontario to Washington, D.C. Dulles Intl Airport?

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
Air CanadaPriceFrom $171Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Porter AirlinesPriceFrom $174Free CancellationRating
7.9
372 reviews
Search Porter Airlines flights
United AirlinesPriceFrom $184Free CancellationRating
7.4
8,933 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Fairfax
Reston
Gaithersburg
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Washington, D.C.?

Finding the right flight to Washington, D.C. from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Ontario to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Ontario.

I’m not ready to book a flight from Ontario to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
sáb. 11/1
sáb. 11/8

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