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 Porter Airlines. Our recent data shows that you can find tickets from as low as $315 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at $370 and $528 round-trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Ottawa for 19% 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?

$156 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 WestJet, with prices starting from $182 and $468, respectively.

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 $170. On average you can expect to pay $371. The most popular route, (Washington, D.C. Dulles Intl - Ottawa), can usually be booked for $309.

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: Air Canada (75%), GoJet (74%), United Airlines (74%).

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, Porter Airlines and Air Transat. Something to consider prior to booking your flight.

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

Travelers have found that booking a Wednesday departure is the best way to save up to 25% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

January is one of the best times of the year to fly to Ottawa from Washington, D.C. Dulles Intl Airport. Prices for January average $385 per person but you can even find prices for as low as $174. The most expensive prices can be found in the month of March. Opting for a January flight can save you 23% on your journey compared to booking in March

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Ottawa flight deals on Cheapflights vs. FlightHub >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. 4 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.

$156+ Flights from Washington, D.C. Dulles Intl Airport to Ottawa

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Ottawa are usually found in April or March, booked 70 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Dulles Intl to Ottawa

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$315 (Trip.com)
One-way from	$156 (FlightHub)
Popular in	September
Cheapest in	April
Average price	$291
Good round-trip deal	$300 or less
Good one-way deal	$284 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.

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From Washington, D.C. Dulles Intl to Ottawa

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

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($23 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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

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

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Find 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 April 24, 2025.

Mon 5/2611:35 amIAD - YOW

1 stop4h 58mPorter Airlines

Wed 5/2810:15 amYOW - IAD

1 stop4h 51mPorter Airlines

Deal found 4/23

$315

Tue 5/274:20 pmIAD - YOW

1 stop8h 02mMultiple Airlines

Sun 6/19:35 amYOW - IAD

1 stop5h 31mMultiple Airlines

Deal found 4/23

$323

Thu 5/298:18 amIAD - YOW

Nonstop1h 40mAir Canada

Sun 6/17:29 pmYOW - IAD

Nonstop1h 35mAir Canada

Deal found 4/23

$370

Tue 5/278:18 amIAD - YOW

Nonstop1h 40mUnited Airlines

Fri 5/307:29 pmYOW - IAD

Nonstop1h 35mUnited Airlines

Deal found 4/23

$528

Tue 5/279:40 amIAD - YOW

2 stops14h 42mDelta

Fri 5/305:55 amYOW - IAD

2 stops10h 49mDelta

Deal found 4/23

$966

Wed 5/2110:09 amIAD - YOW

2 stops14h 13mWestJet

Wed 5/285:55 amYOW - IAD

2 stops16h 59mWestJet

Deal found 4/23

$988

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 April 24, 2025.

Mon 5/2611:35 amIAD - YOW

1 stop4h 58mPorter Airlines

Wed 5/2810:15 amYOW - IAD

1 stop4h 51mPorter Airlines

Deal found 4/23

$315

Tue 5/274:20 pmIAD - YOW

1 stop8h 02mMultiple Airlines

Sun 6/19:35 amYOW - IAD

1 stop5h 31mMultiple Airlines

Deal found 4/23

$323

Thu 5/298:18 amIAD - YOW

Nonstop1h 40mAir Canada

Sun 6/17:29 pmYOW - IAD

Nonstop1h 35mAir Canada

Deal found 4/23

$370

Tue 5/278:18 amIAD - YOW

Nonstop1h 40mUnited Airlines

Fri 5/307:29 pmYOW - IAD

Nonstop1h 35mUnited Airlines

Deal found 4/23

$528

Tue 5/279:40 amIAD - YOW

2 stops14h 42mDelta

Fri 5/305:55 amYOW - IAD

2 stops10h 49mDelta

Deal found 4/23

$966

Wed 5/2110:09 amIAD - YOW

2 stops14h 13mWestJet

Wed 5/285:55 amYOW - IAD

2 stops16h 59mWestJet

Deal found 4/23

$988

Last-minute flights from Dulles Intl to Ottawa
Discover last-minute flight deals from Dulles Intl to Ottawa. Data last updated April 24, 2025 and is based on user searches.

Mon 4/281:56 pmIAD - YOW

2 stops10h 26mWestJet

Wed 4/305:55 amYOW - IAD

2 stops10h 42mWestJet

Deal found 4/23

$1,295

Tue 4/291:45 pmIAD - YOW

1 stop4h 49mPorter Airlines

Wed 4/308:50 amYOW - IAD

1 stop4h 09mPorter Airlines

Deal found 4/23

$470

Tue 4/2910:14 pmIAD - YOW

Nonstop1h 39mAir Canada

Wed 4/302:45 pmYOW - IAD

Nonstop1h 43mAir Canada

Deal found 4/23

$612

Tue 4/297:00 amIAD - YOW

1 stop4h 14mMultiple Airlines

Wed 4/309:50 amYOW - IAD

3 stops25h 36mMultiple Airlines

Deal found 4/23

$683

Tue 4/2910:19 pmIAD - YOW

2 stops15h 05mUnited Airlines

Wed 4/305:50 pmYOW - IAD

2 stops19h 51mUnited Airlines

Deal found 4/23

$1,086

Wed 5/2110:09 amIAD - YOW

2 stops14h 13mWestJet

Wed 5/285:55 amYOW - IAD

2 stops16h 59mWestJet

Deal found 4/23

$988

Mon 5/2611:35 amIAD - YOW

1 stop4h 58mPorter Airlines

Wed 5/2810:15 amYOW - IAD

1 stop4h 51mPorter Airlines

Deal found 4/23

$315

Tue 5/274:20 pmIAD - YOW

1 stop8h 02mMultiple Airlines

Sun 6/19:35 amYOW - IAD

1 stop5h 31mMultiple Airlines

Deal found 4/23

$323

Tue 5/278:18 amIAD - YOW

Nonstop1h 40mUnited Airlines

Fri 5/307:29 pmYOW - IAD

Nonstop1h 35mUnited Airlines

Deal found 4/23

$528

Tue 5/279:40 amIAD - YOW

2 stops14h 42mDelta

Fri 5/305:55 amYOW - IAD

2 stops10h 49mDelta

Deal found 4/23

$966

Thu 5/298:18 amIAD - YOW

Nonstop1h 40mAir Canada

Sun 6/17:29 pmYOW - IAD

Nonstop1h 35mAir Canada

Deal found 4/23

$370

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 April 24, 2025.

Sat 6/74:20 pmIAD - YOW

1 stop3h 33mPorter Airlines

Deal found 4/23

$156

Tue 5/204:20 pmIAD - YOW

1 stop8h 02mMultiple Airlines

Deal found 4/23

$167

Sat 6/71:00 pmIAD - YOW

Nonstop1h 42mAir Canada

Deal found 4/23

$182

Tue 4/295:23 pmIAD - YOW

2 stops30h 59mWestJet

Deal found 4/23

$468

Tue 5/209:40 amIAD - YOW

2 stops14h 42mDelta

Deal found 4/23

$548

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 5/26

11:35 am-4:33 pm

1 stop4h 58m

Ottawa

Wed 5/28

10:15 am-3:06 pm

1 stop4h 51m

$315

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 5/27

4:20 pm-12:22 am

1 stop8h 02m

Ottawa

Sun 6/1

9:35 am-3:06 pm

1 stop5h 31m

$323

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 5/29

8:18 am-9:58 am

Nonstop1h 40m

Ottawa

Sun 6/1

7:29 pm-9:04 pm

Nonstop1h 35m

$370

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 5/27

8:18 am-9:58 am

Nonstop1h 40m

Ottawa

Fri 5/30

7:29 pm-9:04 pm

Nonstop1h 35m

$528

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 5/27

9:40 am-12:22 am

2 stops14h 42m

Ottawa

Fri 5/30

5:55 am-4:44 pm

2 stops10h 49m

$966

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 5/21

10:09 am-12:22 am

2 stops14h 13m

Ottawa

Wed 5/28

5:55 am-10:54 pm

2 stops16h 59m

$988

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 6/7

4:20 pm-7:53 pm

1 stop3h 33m

$156

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 5/20

4:20 pm-12:22 am

1 stop8h 02m

$167

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 6/7

1:00 pm-2:42 pm

Nonstop1h 42m

$182

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 4/29

5:23 pm-12:22 am

2 stops30h 59m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 11 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 April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Ottawa flight deals on Cheapflights vs. FlightHub >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

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Ottawa?

The best time to book flights from Washington, D.C. Dulles Intl Airport to Ottawa is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ottawa (average of $294). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in May is currently the most expensive (average of $460). 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 47% versus a flight in the afternoon.

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 Monday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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).

Rainfall in Ottawa by month

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.

Temperature in Ottawa by month

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).

Reviews of airlines servicing Ottawa

Get a feel of what it's like to fly with Porter Airlines, Delta and United Airlines from Washington, D.C. to Ottawa by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

284 reviews

Reviews

1 / 18

10.0

Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Porter Airlines

8.0

Very good

284 reviews

Porter Airlines

8.0

Very good

284 reviews

Reviews

1 / 18

10.0

Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Delta

8.0

Very good

7,920 reviews

Porter Airlines

8.0

Very good

284 reviews

Reviews

1 / 18

10.0

Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

United Airlines

7.4

Good

8,685 reviews

Porter Airlines

8.0

Very good

284 reviews

Reviews

1 / 18

10.0

Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

WestJet

7.2

Good

2,816 reviews

Porter Airlines

8.0

Very good

284 reviews

Reviews

1 / 18

10.0

Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Air Canada

7.0

Good

9,195 reviews

Porter Airlines

8.0

Very good

284 reviews

Reviews

1 / 18

10.0

Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

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. 4 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.
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 Porter Airlines. Our recent data shows that you can find tickets from as low as $315 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at $370 and $528 round-trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Ottawa for 19% 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?
$156 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 WestJet, with prices starting from $182 and $468, 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: Air Canada (75%), GoJet (74%), United Airlines (74%).
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 $170. On average you can expect to pay $371. The most popular route, (Washington, D.C. Dulles Intl - Ottawa), can usually be booked for $309.
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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ottawa (average of $294). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in May is currently the most expensive (average of $460). 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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Alternative routes for Dulles Intl to Ottawa

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Other flights to Ottawa

Top 4 airlines flying from Dulles Intl to Ottawa

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$176	Average$437	FlexibilityNo cancel fee	On-time67%
Porter Airlines	Cheapest$188	Average$380	FlexibilityNo cancel fee	On-time52%
United Airlines	Cheapest$279	Average$563	FlexibilityNo cancel fee	On-time69%
Air Transat	Cheapest$347	Average$348	FlexibilityNo cancel fee	On-time50%

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$156+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Ottawa with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Ottawa are usually found in April or March, booked 70 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap 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

Good one-way deal

Find 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 April 24, 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 April 24, 2025.

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.

Compare providers for flights from Dulles Intl to Ottawa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

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 April.

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.

Cheapflights Insights

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

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Ottawa. Price data was last updated on April 18, 2025.

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

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

Find hourly flight availability from Dulles Intl to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Ottawa. Price data was last updated on March 30, 2025.

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

Explore weekly flight availability from Dulles Intl to Ottawa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 24, 2025.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

Reviews of airlines servicing Ottawa

Get a feel of what it's like to fly with Porter Airlines, Delta and United Airlines from Washington, D.C. to Ottawa by reading reviews from past customers. You can also see how each airline stacks up in terms of 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?

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?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Dulles Intl to Ottawa

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Top 4 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 April 24, 2025.