How long is the flight from Washington, D.C. Dulles Intl Airport to Ottawa?

A quick flight from Washington, D.C. Dulles Intl Airport to Ottawa can take about 3h 24m. Porter Airlines provides one of the quickest options available for as low as $295. There are 449 mi between Washington, D.C. Dulles Intl Airport and Ottawa.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Ottawa round-trip?

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Ottawa is Air Canada. Our recent data shows that you can find tickets from as low as $164 on this airline. Additional options worth looking into are Porter Airlines and United Airlines, starting at $169 and $189 round-trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Ottawa for 61% less than the average price by searching for these airlines.

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

$118 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $155 and $180, respectively.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Ottawa

The most flights from IAD to YOW are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

In terms of precipitation, rainfall in Ottawa ranges from 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.

If weather is an important factor for your trip to Ottawa, 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 14.0 F).

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

The cheapest flight price from Washington, D.C. Dulles Intl Airport to Ottawa is $155. On average you can expect to pay $490. The most popular route, (Washington, D.C. Dulles Intl - Ottawa), can usually be booked for $266.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Ottawa on time: Republic Airways (85%), United Airlines (74%), Air Canada (72%).

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

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to Ottawa are Air Canada, United Airlines and Porter Airlines. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Ottawa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Ottawa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Ottawa flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Ottawa flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Ottawa from Washington, D.C. Dulles Intl?

Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Ottawa. 3 airlines have flights to Ottawa from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Ottawa should not be difficult; the airport handles an average of 7 inbound flights from Washington, D.C. Dulles Intl per day.

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

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

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

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

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

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

$109+ Flights from Washington, D.C. Dulles Intl Airport to Ottawa

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Cheap flight deals from Dulles Intl to Ottawa

Cheapest flights from Dulles Intl to Ottawa
Explore the most affordable flight options available from Dulles Intl to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

Wed 12/316:05 amIAD - YOW

2 stops32h 53mMultiple Airlines

Fri 1/21:20 pmYOW - IAD

1 stop3h 54mMultiple Airlines

Deal found 12/19

$572

Sat 12/278:26 pmIAD - YOW

2 stops44h 44mMultiple Airlines

Fri 1/21:20 pmYOW - IAD

1 stop3h 54mMultiple Airlines

Deal found 12/19

$608

Mon 12/299:58 pmIAD - YOW

1 stop19h 15mMultiple Airlines

Wed 12/316:50 amYOW - IAD

1 stop3h 34mMultiple Airlines

Deal found 12/19

$615

Wed 12/3111:40 amIAD - YOW

1 stop5h 49mPorter Airlines

Fri 1/21:20 pmYOW - IAD

1 stop3h 54mPorter Airlines

Deal found 12/19

$652

Sat 12/276:30 pmIAD - YOW

1 stop3h 59mPorter Airlines

Fri 1/21:20 pmYOW - IAD

1 stop3h 54mPorter Airlines

Deal found 12/19

$670

Sat 12/276:30 pmIAD - YOW

1 stop3h 59mMultiple Airlines

Wed 12/314:20 pmYOW - IAD

2 stops19h 18mMultiple Airlines

Deal found 12/20

$678

Mon 12/299:58 pmIAD - YOW

1 stop19h 15mMultiple Airlines

Thu 1/18:55 pmYOW - IAD

1 stop13h 24mMultiple Airlines

Deal found 12/19

$693

Thu 12/257:11 pmIAD - YOW

2 stops22h 14mMultiple Airlines

Thu 1/18:55 pmYOW - IAD

1 stop20h 19mMultiple Airlines

Deal found 12/20

$737

Sat 12/276:30 pmIAD - YOW

1 stop13h 29mPorter Airlines

Wed 12/316:50 amYOW - IAD

1 stop3h 34mPorter Airlines

Deal found 12/20

$748

Wed 12/3110:08 pmIAD - YOW

Nonstop1h 46mAir Canada

Fri 1/27:27 pmYOW - IAD

Nonstop1h 58mAir Canada

Deal found 12/19

$820

Wed 12/242:35 pmIAD - YOW

2 stops26h 50mMultiple Airlines

Fri 1/28:55 pmYOW - IAD

1 stop13h 24mMultiple Airlines

Deal found 12/20

$837

Best flights from Dulles Intl to Ottawa
Discover carefully curated flight deals from Dulles Intl to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2025.

Mon 2/211:40 amIAD - YOW

1 stop3h 24mPorter Airlines

Fri 2/67:00 amYOW - IAD

1 stop3h 22mPorter Airlines

Deal found 12/19

$295

Sat 1/175:30 amIAD - YOW

2 stops11h 55mMultiple Airlines

Mon 1/197:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/20

$302

Sat 2/145:11 pmIAD - YOW

Nonstop1h 44mUnited Airlines

Tue 2/172:15 pmYOW - IAD

Nonstop1h 56mUnited Airlines

Deal found 12/19

$349

Thu 1/2211:37 amIAD - YOW

2 stops13h 06mMultiple Airlines

Sun 1/254:20 pmYOW - IAD

1 stop20h 16mMultiple Airlines

Deal found 12/19

$308

Fri 1/1611:35 amIAD - YOW

1 stop5h 54mPorter Airlines

Mon 1/197:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Deal found 12/20

$328

Thu 1/156:00 amIAD - YOW

2 stops18h 25mMultiple Airlines

Mon 1/197:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/19

$312

Wed 2/412:43 pmIAD - YOW

Nonstop1h 44mUnited Airlines

Wed 2/112:15 pmYOW - IAD

Nonstop1h 58mUnited Airlines

Deal found 12/20

$349

Tue 2/310:10 pmIAD - YOW

Nonstop1h 44mUnited Airlines

Tue 2/102:15 pmYOW - IAD

Nonstop1h 58mUnited Airlines

Deal found 12/19

$349

Fri 1/162:58 pmIAD - YOW

2 stops9h 00mMultiple Airlines

Mon 1/197:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/20

$338

Sat 1/2411:39 amIAD - YOW

2 stops12h 19mMultiple Airlines

Wed 1/287:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/19

$341

Last-minute flights from Dulles Intl to Ottawa
Discover last-minute flight deals from Dulles Intl to Ottawa. Data last updated December 21, 2025 and is based on user searches.

Fri 1/92:53 pmIAD - YOW

1 stop26h 22mMultiple Airlines

Mon 1/127:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/20

$324

Thu 1/156:00 amIAD - YOW

2 stops18h 25mMultiple Airlines

Mon 1/197:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/19

$312

Thu 1/1511:35 amIAD - YOW

1 stop3h 29mPorter Airlines

Mon 1/197:00 amYOW - IAD

1 stop3h 19mPorter Airlines

Deal found 12/19

$328

Fri 1/168:53 pmIAD - YOW

2 stops20h 32mMultiple Airlines

Mon 1/197:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/19

$299

Sun 1/187:27 pmIAD - YOW

1 stop21h 48mMultiple Airlines

Thu 1/297:00 amYOW - IAD

1 stop3h 19mMultiple Airlines

Deal found 12/20

$266

Thu 1/2211:37 amIAD - YOW

2 stops13h 06mMultiple Airlines

Sun 1/254:20 pmYOW - IAD

1 stop20h 16mMultiple Airlines

Deal found 12/19

$308

Thu 1/229:45 amIAD - YOW

1 stop4h 22mAir Canada

Sun 1/257:27 pmYOW - IAD

Nonstop1h 58mAir Canada

Deal found 12/19

$319

Thu 1/2210:10 pmIAD - YOW

Nonstop1h 44mLufthansa

Sun 1/257:27 pmYOW - IAD

Nonstop1h 58mLufthansa

Deal found 12/19

$326

One-way flights from Dulles Intl to Ottawa
Search for one-way flight options from Dulles Intl to Ottawa. Find affordable one-way fares based on user searches. Data last updated December 21, 2025.

Mon 2/21:31 pmIAD - YOW

1 stop27h 42mMultiple Airlines

Deal found 12/19

$109

Sun 2/156:30 pmIAD - YOW

1 stop3h 59mPorter Airlines

Deal found 12/20

$135

Thu 1/83:21 pmIAD - YOW

2 stops33h 22mMultiple Airlines

Deal found 12/19

$136

Sun 2/19:18 amIAD - YOW

1 stop7h 55mMultiple Airlines

Deal found 12/19

$137

Tue 1/136:00 amIAD - YOW

2 stops35h 13mMultiple Airlines

Deal found 12/19

$138

Thu 1/156:00 amIAD - YOW

2 stops18h 25mMultiple Airlines

Deal found 12/20

$139

Wed 2/1112:43 pmIAD - YOW

Nonstop1h 44mUnited Airlines

Deal found 12/19

$150

Wed 1/1411:35 amIAD - YOW

1 stop13h 07mMultiple Airlines

Deal found 12/19

$157

Sun 2/110:10 pmIAD - YOW

Nonstop1h 44mUnited Airlines

Deal found 12/19

$158

Thu 1/1511:35 amIAD - YOW

1 stop3h 29mPorter Airlines

Deal found 12/20

$165

Find flight deals from Dulles Intl to Ottawa

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$266 (Kiwi.com)
One-way from	$109 (Kiwi.com)
Popular in	May
Cheapest in	April
Average price	$407
Good round-trip deal	$538 or less
Good one-way deal	$155 or less

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Ottawa flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Ottawa flights.

Search Deals

From Washington, D.C. Dulles Intl to Ottawa

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Ottawa

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Ottawa.

Search Deals

Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Ottawa.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 2/2

11:40 am-3:04 pm

1 stop3h 24m

Ottawa

Fri 2/6

7:00 am-10:22 am

1 stop3h 22m

$295

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 1/17

5:30 am-5:25 pm

2 stops11h 55m

Ottawa

Mon 1/19

7:00 am-10:19 am

1 stop3h 19m

$302

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 1/22

11:37 am-12:43 am

2 stops13h 06m

Ottawa

Sun 1/25

4:20 pm-12:36 pm

1 stop20h 16m

$308

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-12:25 am

2 stops18h 25m

Ottawa

Mon 1/19

7:00 am-10:19 am

1 stop3h 19m

$312

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 1/16

11:35 am-5:29 pm

1 stop5h 54m

Ottawa

Mon 1/19

7:00 am-10:19 am

1 stop3h 19m

$328

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 1/16

2:58 pm-11:58 pm

2 stops9h 00m

Ottawa

Mon 1/19

7:00 am-10:19 am

1 stop3h 19m

$338

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 1/24

11:39 am-11:58 pm

2 stops12h 19m

Ottawa

Wed 1/28

7:00 am-10:19 am

1 stop3h 19m

$341

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 2/14

5:11 pm-6:55 pm

Nonstop1h 44m

Ottawa

Tue 2/17

2:15 pm-4:11 pm

Nonstop1h 56m

$349

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 2/4

12:43 pm-2:27 pm

Nonstop1h 44m

Ottawa

Wed 2/11

2:15 pm-4:13 pm

Nonstop1h 58m

$349

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 2/3

10:10 pm-11:54 pm

Nonstop1h 44m

Ottawa

Tue 2/10

2:15 pm-4:13 pm

Nonstop1h 58m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 20 results

Compare providers for flights from Dulles Intl to Ottawa

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Ottawa in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Ottawa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Ottawa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Ottawa flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Ottawa flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Ottawa

Prices

Airlines

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ottawa (average of $112). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in August is currently the most expensive (average of $255). 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.

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

When flying from Washington, D.C. Dulles Intl Airport to Ottawa, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 30% versus a flight in the evening.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Ottawa?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Ottawa flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ottawa

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Ottawa, such as Porter Airlines, United Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Porter Airlines

8.0

Very good

399 reviews

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

United Airlines

7.4

Good

9,100 reviews

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Air Canada

7.1

Good

10,550 reviews

Porter Airlines

8.0

Very good

399 reviews

Reviews

1 / 20

8.0

Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Related info for your journey

What airport do you fly into for flights to Ottawa from Washington, D.C. Dulles Intl?
Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Ottawa. 3 airlines have flights to Ottawa from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Ottawa should not be difficult; the airport handles an average of 7 inbound flights from Washington, D.C. Dulles Intl per day.
How long is the flight from Washington, D.C. Dulles Intl Airport to Ottawa?
A quick flight from Washington, D.C. Dulles Intl Airport to Ottawa can take about 3h 24m. Porter Airlines provides one of the quickest options available for as low as $295. There are 449 mi between Washington, D.C. Dulles Intl Airport and Ottawa.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Ottawa round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Ottawa is Air Canada. Our recent data shows that you can find tickets from as low as $164 on this airline. Additional options worth looking into are Porter Airlines and United Airlines, starting at $169 and $189 round-trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Ottawa for 61% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Ottawa one-way?
$118 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $155 and $180, respectively.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Ottawa?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Ottawa on time: Republic Airways (85%), United Airlines (74%), Air Canada (72%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Ottawa?
The cheapest flight price from Washington, D.C. Dulles Intl Airport to Ottawa is $155. On average you can expect to pay $490. The most popular route, (Washington, D.C. Dulles Intl - Ottawa), can usually be booked for $266.
Can I find deals for flights from Dulles Intl to Ottawa that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Ottawa.
Can I find deals for business class flights from Dulles Intl to Ottawa?
Yes. Cheapflights offers flight deals from Dulles Intl to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Ottawa?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ottawa (average of $112). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in August is currently the most expensive (average of $255). 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.

See more FAQs

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Other flights to Ottawa

Top 3 airlines flying from Dulles Intl to Ottawa

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$206	Average$502	FlexibilityNo cancel fee	On-time67%
Porter Airlines	Cheapest$265	Average$335	FlexibilityNo cancel fee	On-time52%
United Airlines	Cheapest$273	Average$465	FlexibilityNo cancel fee	On-time69%

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$109+ Cheap flights from Dulles Intl (IAD) to Ottawa (YOW)

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Dulles Intl to Ottawa

Cheapest flights from Dulles Intl to OttawaExplore the most affordable flight options available from Dulles Intl to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

Explore the most affordable flight options available from Dulles Intl to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

Find flight deals from Dulles Intl to Ottawa

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

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Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Ottawa

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Weekly flight availability from Washington, D.C. Dulles Intl Airport to Ottawa

Reviews of airlines servicing Ottawa

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Ottawa, such as Porter Airlines, United Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ottawa from Washington, D.C. Dulles Intl?

How long is the flight from Washington, D.C. Dulles Intl Airport to Ottawa?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Ottawa round-trip?

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

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

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

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

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

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

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

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Alternative routes for Dulles Intl to Ottawa

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Top 3 airlines flying from Dulles Intl to Ottawa

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Cheapest flights from Dulles Intl to Ottawa
Explore the most affordable flight options available from Dulles Intl to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.