What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Region of Ontario one-way?

The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $106. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Region of Ontario for a low price.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario (average of $243). Flying from Washington, D.C. Dulles Intl Airport to Region of Ontario in July is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Region of Ontario

The most flights from IAD to CAON are scheduled on a Monday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Region of Ontario?

The most popular flight routes from Washington, D.C. Dulles Intl Airport to Region of Ontario are Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl, Washington, D.C. Dulles Intl - Toronto Pearson Intl and Washington, D.C. Dulles Intl - Toronto Island.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Region of Ontario?

On average you can expect to pay $1,172 for a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario. The cheapest flight overall is $112 while the most popular route, (Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $257.

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Region of Ontario?

No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario consider choosing Jazz (95%), United Airlines (94%) or ANA (93%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Region of Ontario?

When booking a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario, you may want to consider flying on Air Canada, Porter Airlines or United Airlines as they are the most popular for this route.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario?

Travelers have found it’s best to book a flight 44 days in advance to save up to 121% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario 1-2 weeks in advance for as low as $346, or $567 for flights within the next 24 hours.

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

The best pricing can be found in the month of February. Prices to Region of Ontario from Washington, D.C. Dulles Intl Airport average $289. You can even find prices in February for less than $289, as users have found deals to Region of Ontario from as low as $129. The month of August appears to be one of the more expensive times to travel to Region of Ontario from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 16%.

What is the cheapest time of day to fly from IAD to ON?

When flying from Washington, D.C. Dulles Intl Airport to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Dulles Intl to Ontario that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Ontario.

Can I find deals for business class flights from Dulles Intl to Ontario?

Yes. Cheapflights offers flight deals from Dulles Intl to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$106+ Flights from Washington, D.C. Dulles Intl Airport to Ontario

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Cheap flight deals from Dulles Intl to Ontario

Find flight deals from Dulles Intl to Ontario

Cheapest flights from Dulles Intl to Ontario
Explore the most affordable flight options available from Dulles Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.

Tue 12/178:05 amIAD - YYZ

1 stop11h 25mMultiple Airlines

Fri 1/107:10 amYYZ - IAD

1 stop11h 08mMultiple Airlines

Deal found 12/2

$213

Tue 12/177:00 amIAD - YTZ

Nonstop1h 30mPorter Airlines

Thu 12/198:55 pmYTZ - IAD

Nonstop1h 29mPorter Airlines

Deal found 12/1

$222

Tue 12/178:21 amIAD - YYZ

Nonstop1h 37mUnited Airlines

Thu 12/196:15 amYYZ - IAD

Nonstop1h 50mUnited Airlines

Deal found 12/1

$262

Sun 12/298:15 amIAD - YYZ

Nonstop1h 43mAir Canada

Sun 1/56:15 amYYZ - IAD

Nonstop1h 50mAir Canada

Deal found 12/2

$272

Mon 12/237:00 amIAD - YTZ

Nonstop1h 30mMultiple Airlines

Thu 1/28:55 pmYTZ - IAD

Nonstop1h 29mMultiple Airlines

Deal found 12/2

$281

Tue 12/247:00 amIAD - YUL

1 stop4h 10mPorter Airlines

Thu 1/96:55 amYUL - IAD

1 stop5h 54mPorter Airlines

Deal found 12/1

$317

Tue 12/243:55 pmIAD - YUL

Nonstop1h 55mAir Canada

Thu 1/99:15 amYUL - IAD

Nonstop2h 15mAir Canada

Deal found 12/1

$328

Tue 12/178:05 amIAD - YOW

1 stop12h 04mMultiple Airlines

Fri 12/207:00 amYOW - IAD

1 stop5h 59mMultiple Airlines

Deal found 12/1

$340

Wed 12/251:45 pmIAD - YOW

1 stop4h 46mPorter Airlines

Sun 4/135:45 pmYOW - IAD

1 stop4h 39mPorter Airlines

Deal found 12/3

$343

Sat 12/287:00 amIAD - YTZ

Nonstop1h 30mAir Transat

Fri 1/38:55 pmYTZ - IAD

Nonstop1h 29mAir Transat

Deal found 12/3

$359

Fri 12/137:45 amIAD - YYZ

1 stop11h 21mWestJet

Mon 12/166:00 amYYZ - IAD

1 stop10h 44mWestJet

Deal found 12/2

$365

Mon 12/95:14 pmIAD - YYZ

1 stop5h 45mDelta

Thu 1/97:45 amYYZ - IAD

1 stop4h 06mDelta

Deal found 12/2

$372

Best flights from Dulles Intl to Ontario
Discover carefully curated flight deals from Dulles Intl to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2024.

Tue 12/178:05 amIAD - YYZ

1 stop11h 25mMultiple Airlines

Fri 1/107:10 amYYZ - IAD

1 stop11h 08mMultiple Airlines

Deal found 12/2

$213

Tue 12/177:00 amIAD - YTZ

Nonstop1h 30mPorter Airlines

Thu 12/198:55 pmYTZ - IAD

Nonstop1h 29mPorter Airlines

Deal found 12/1

$222

Fri 1/108:15 amIAD - YYZ

Nonstop1h 43mAir Canada

Mon 1/1310:00 amYYZ - IAD

1 stop5h 13mAir Canada

Deal found 12/1

$235

Thu 1/168:22 amIAD - YYZ

1 stop5h 21mUnited Airlines

Thu 1/238:10 amYYZ - IAD

Nonstop1h 36mUnited Airlines

Deal found 12/1

$271

Fri 1/1012:31 pmIAD - YYZ

1 stop3h 41mDelta

Thu 1/1610:10 amYYZ - IAD

1 stop5h 43mDelta

Deal found 12/2

$278

Thu 1/96:00 amIAD - YYZ

1 stop5h 07mWestJet

Sun 1/127:45 amYYZ - IAD

1 stop4h 06mWestJet

Deal found 12/3

$323

Wed 2/122:10 pmIAD - YTZ

Nonstop1h 30mAir Transat

Wed 2/1911:20 amYTZ - IAD

Nonstop1h 29mAir Transat

Deal found 12/2

$337

Fri 1/102:10 pmIAD - YTZ

Nonstop1h 30mMultiple Airlines

Mon 1/1311:20 amYTZ - IAD

Nonstop1h 29mMultiple Airlines

Deal found 12/1

$247

Fri 1/172:10 pmIAD - YUL

1 stop3h 50mPorter Airlines

Sun 1/196:50 amYUL - IAD

1 stop5h 59mPorter Airlines

Deal found 12/1

$269

Sat 2/158:24 amIAD - YTZ

1 stop6h 26mAir Canada

Sun 2/164:20 pmYTZ - IAD

1 stop5h 03mAir Canada

Deal found 12/2

$290

Mon 1/67:00 amIAD - YOW

1 stop4h 11mPorter Airlines

Thu 1/169:30 amYOW - IAD

1 stop3h 19mPorter Airlines

Deal found 12/1

$276

Thu 1/166:00 amIAD - YUL

1 stop5h 47mDelta

Tue 1/217:05 amYUL - IAD

1 stop8h 48mDelta

Deal found 12/1

$323

Last-minute flights from Dulles Intl to Ontario
Discover last-minute flight deals from Dulles Intl to Ontario. Data last updated December 3, 2024 and is based on user searches.

Sun 12/85:57 pmIAD - YUL

1 stop20h 13mMultiple Airlines

Thu 12/126:45 amYUL - IAD

1 stop10h 11mMultiple Airlines

Deal found 12/2

$396

Mon 12/93:55 pmIAD - YYZ

1 stop5h 55mAir Canada

Mon 12/168:00 amYYZ - IAD

1 stop7h 13mAir Canada

Deal found 12/2

$349

Mon 12/95:14 pmIAD - YYZ

1 stop5h 45mDelta

Thu 1/97:45 amYYZ - IAD

1 stop4h 06mDelta

Deal found 12/2

$372

Tue 12/101:17 pmIAD - YYZ

2 stops10h 33mMultiple Airlines

Wed 12/118:00 pmYYZ - IAD

1 stop20h 56mMultiple Airlines

Deal found 12/2

$278

Tue 12/107:00 amIAD - YTZ

Nonstop1h 30mPorter Airlines

Fri 1/311:30 amYTZ - IAD

Nonstop1h 29mPorter Airlines

Deal found 12/2

$299

Wed 12/1110:05 pmIAD - YYZ

1 stop13h 24mUnited Airlines

Thu 12/122:45 pmYYZ - IAD

Nonstop1h 39mUnited Airlines

Deal found 12/1

$420

Thu 12/121:45 pmIAD - YTZ

Nonstop1h 30mAir Transat

Thu 1/911:20 amYTZ - IAD

Nonstop1h 29mAir Transat

Deal found 12/2

$429

Fri 12/137:45 amIAD - YYZ

1 stop11h 21mWestJet

Mon 12/166:00 amYYZ - IAD

1 stop10h 44mWestJet

Deal found 12/2

$365

Fri 12/131:45 pmIAD - YTZ

Nonstop1h 30mMultiple Airlines

Mon 12/1610:25 amYTZ - IAD

1 stop4h 48mMultiple Airlines

Deal found 12/2

$372

Fri 12/131:45 pmIAD - YUL

1 stop5h 35mPorter Airlines

Mon 12/166:50 amYUL - IAD

1 stop6h 09mPorter Airlines

Deal found 12/2

$390

Fri 12/131:45 pmIAD - YOW

1 stop3h 21mPorter Airlines

Mon 12/168:35 amYOW - IAD

1 stop4h 24mPorter Airlines

Deal found 12/1

$404

Fri 12/131:45 pmIAD - YOW

1 stop4h 46mMultiple Airlines

Mon 12/164:05 pmYOW - IAD

1 stop15h 10mMultiple Airlines

Deal found 12/2

$414

One-way flights from Dulles Intl to Ontario
Search for one-way flight options from Dulles Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated December 3, 2024.

Mon 12/237:00 amIAD - YTZ

Nonstop1h 30mPorter Airlines

Deal found 12/3

$106

Fri 1/318:15 amIAD - YYZ

Nonstop1h 43mUnited Airlines

Deal found 12/1

$107

Tue 12/178:05 amIAD - YTZ

2 stops14h 18mMultiple Airlines

Deal found 12/2

$108

Sat 2/18:18 amIAD - YYZ

1 stop5h 23mAir Canada

Deal found 12/1

$108

Sat 1/113:55 pmIAD - YTZ

1 stop5h 55mAir Canada

Deal found 12/2

$110

Wed 1/296:00 amIAD - YYZ

1 stop5h 59mDelta

Deal found 12/1

$112

Tue 12/1710:10 pmIAD - YYZ

2 stops15h 45mMultiple Airlines

Deal found 12/2

$117

Thu 2/132:10 pmIAD - YTZ

Nonstop1h 30mAir Transat

Deal found 12/1

$140

Mon 12/163:55 pmIAD - YUL

Nonstop1h 55mAir Canada

Deal found 12/1

$147

Wed 2/262:10 pmIAD - YUL

1 stop5h 15mPorter Airlines

Deal found 12/2

$148

Wed 1/152:10 pmIAD - YOW

1 stop6h 24mPorter Airlines

Deal found 12/2

$150

Mon 12/165:35 pmIAD - YYZ

1 stop5h 01mWestJet

Deal found 12/2

$154

Find flights from Dulles Intl to Ontario within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 12/17

8:05 am-7:30 pm

1 stop11h 25m

Toronto Pearson Intl

Fri 1/10

7:10 am-6:18 pm

1 stop11h 08m

$213

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Tue 12/17

7:00 am-8:30 am

Nonstop1h 30m

Toronto Island

Thu 12/19

8:55 pm-10:24 pm

Nonstop1h 29m

$222

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 1/10

8:15 am-9:58 am

Nonstop1h 43m

Toronto Pearson Intl

Mon 1/13

10:00 am-3:13 pm

1 stop5h 13m

$235

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 1/10

2:10 pm-3:40 pm

Nonstop1h 30m

Toronto Island

Mon 1/13

11:20 am-12:49 pm

Nonstop1h 29m

$247

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 1/22

3:55 pm-9:50 pm

1 stop5h 55m

Toronto Island

Sat 1/25

8:50 am-3:13 pm

2 stops6h 23m

$254

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 12/17

8:21 am-9:58 am

Nonstop1h 37m

Toronto Pearson Intl

Thu 12/19

6:15 am-8:05 am

Nonstop1h 50m

$262

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 1/17

2:10 pm-6:00 pm

1 stop3h 50m

Montreal Pierre Elliott Trudeau Intl

Sun 1/19

6:50 am-12:49 pm

1 stop5h 59m

$269

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 1/6

7:00 am-11:11 am

1 stop4h 11m

Ottawa

Thu 1/16

9:30 am-12:49 pm

1 stop3h 19m

$276

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 1/10

12:31 pm-4:12 pm

1 stop3h 41m

Toronto Pearson Intl

Thu 1/16

10:10 am-3:53 pm

1 stop5h 43m

$278

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 1/30

8:18 am-10:20 am

Nonstop2h 02m

Montreal Pierre Elliott Trudeau Intl

Wed 2/5

9:15 am-11:30 am

Nonstop2h 15m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 60 results

...

Best time to book a flight from Dulles Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Ontario

Find flight deals from Dulles Intl to Ontario

Cheapest flights from Dulles Intl to Ontario
Explore the most affordable flight options available from Dulles Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.

Explore the most affordable flight options available from Dulles Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.

Best flights from Dulles Intl to Ontario
Discover carefully curated flight deals from Dulles Intl to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2024.

Discover carefully curated flight deals from Dulles Intl to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2024.

Last-minute flights from Dulles Intl to Ontario
Discover last-minute flight deals from Dulles Intl to Ontario. Data last updated December 3, 2024 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Ontario. Data last updated December 3, 2024 and is based on user searches.

One-way flights from Dulles Intl to Ontario
Search for one-way flight options from Dulles Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated December 3, 2024.

Search for one-way flight options from Dulles Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated December 3, 2024.

Find flights from Dulles Intl to Ontario within your budget

Best time to book a flight from Dulles Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dulles Intl with our price prediction graph.

Travel insights for flights from Dulles Intl to Ontario

Get recent, data-driven insights about flights from Dulles Intl to Ontario including ideal travel times, pricing trends, and more.

$106+ Cheap flights from Dulles Intl (IAD) to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Ontario

Find flight deals from Dulles Intl to Ontario

Cheapest flights from Dulles Intl to OntarioExplore the most affordable flight options available from Dulles Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.

Explore the most affordable flight options available from Dulles Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.

Find flights from Dulles Intl to Ontario within your budget

Best time to book a flight from Dulles Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dulles Intl with our price prediction graph.

Travel insights for flights from Dulles Intl to Ontario

Get recent, data-driven insights about flights from Dulles Intl to Ontario including ideal travel times, pricing trends, and more.

Cheapest flights from Dulles Intl to Ontario
Explore the most affordable flight options available from Dulles Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.