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

Lufthansa and United Airlines can get you from Washington, D.C. Dulles Intl Airport to Ottawa in just under 1h 48m. Your travel time will be generally consistent. Airlines will cover a distance of 723 km. Generally, flights for this route are direct.

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

The most flights from IAD to YOW are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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

On average you can expect to pay C$ 1,614 for a flight from Washington, D.C. Dulles Intl Airport to Ottawa. The cheapest flight overall is C$ 1,614 while the most popular route, (Washington, D.C. Dulles Intl - Ottawa) is currently priced at C$ 444.

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

No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Ottawa consider choosing Air Canada (79%), GoJet (75%) or United Airlines (72%) as they are the most reliable in getting you off to your destination on time.

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

Most people fly into Ottawa (YOW) if they book a flight to Ottawa from Washington, D.C. Dulles Intl. On average, Ottawa has 9 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

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.

C$ 199+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Ottawa

Cheap flight deals from Dulles Intl to Ottawa

Enter your travel dates to find the best prices.

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Best

Direct

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One-way

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 7 October 2026.

Thu 29/1011:20 a.m. -

1 stop4h 49m

Sun 1/1112:15 p.m. -

1 stop5h 28m

Deal found 4/10C$ 443

Fri 20/1111:20 a.m. -

1 stop5h 17m

Fri 27/1112:15 p.m. -

1 stop5h 29m

Deal found 6/10C$ 444

Thu 19/1111:20 a.m. -

1 stop4h 49m

Sun 22/1112:15 p.m. -

1 stop5h 28m

Deal found 2/10C$ 464

Fri 6/1111:20 a.m. -

1 stop4h 49m

Sun 8/1112:15 p.m. -

1 stop5h 28m

Deal found 4/10C$ 471

Wed 4/1111:20 a.m. -

1 stop4h 49m

Sun 8/1112:15 p.m. -

1 stop5h 28m

Deal found 4/10C$ 481

Thu 5/1111:20 a.m. -

1 stop4h 49m

Mon 9/1112:15 p.m. -

1 stop5h 28m

Deal found 3/10C$ 484

Wed 18/1111:20 a.m. -

1 stop4h 49m

Sun 22/1112:15 p.m. -

1 stop5h 28m

Deal found 3/10C$ 487

Fri 11/1211:20 a.m. -

1 stop4h 49m

Mon 14/1212:15 p.m. -

1 stop5h 28m

Deal found 3/10C$ 521

Sun 1/1111:20 a.m. -

1 stop5h 17m

Mon 30/1112:15 p.m. -

1 stop5h 29m

Deal found 6/10C$ 548

Thu 19/115:20 p.m. -

1 stop4h 32m

Thu 26/119:10 a.m. -

1 stop6h 35m

Deal found 5/10C$ 560

Find flight deals from Dulles Intl to Ottawa

Round-trip from	C$ 443
One-way from	C$ 199
Popular in	February
Cheapest in	December
Average price	C$ 793
Good round-trip deal	C$ 1,614 or less

Porter Airlines
29/10-1/11
2 total stops
10h 17m total
Washington, D.C. to Ottawa

Search Deals

Porter Airlines
15/11-31/12
1 total stop
5h 17m total
Washington, D.C. to Ottawa

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (C$ 62 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 47 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

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

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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.

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Tue 17/11

11:20 a.m.-4:09 p.m.

1 stop4h 49m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 206

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 19/11

5:20 p.m.-9:52 p.m.

1 stop4h 32m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 245

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Mon 14/12

10:33 p.m.-12:09 a.m.

2 stops25h 36m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 282

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Mon 9/11

5:37 p.m.-7:27 p.m.

Nonstop1h 50m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 290

Quickest round-trip

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 29/10

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 290

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 3/12

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 290

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Mon 14/12

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 290

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Fri 6/11

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Sun 8/11

9:45 a.m.-11:48 a.m.

Nonstop2h 03m

C$ 592

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Sat 21/11

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Sat 28/11

9:45 a.m.-11:48 a.m.

Nonstop2h 03m

C$ 655

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Mon 2/11

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Mon 30/11

2:00 p.m.-3:53 p.m.

Nonstop1h 53m

C$ 655

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 18 resultsSorted by cheapest first

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.

IAD-YOW

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, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ottawa (average of C$ 510). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in February is currently the most expensive (average of C$ 1,075). 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?

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Ottawa at noon. Doing so could potentially save you 82% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Ottawa?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Ottawa flights typically cost between C$ 614 and C$ 866 in October.
The cheapest round-trip price found within the last 5 days was C$ 443 on Porter Airlines (29 Oct-1 Nov).

Related info for your journey

What airport do you fly into for flights to Ottawa from Washington, D.C. Dulles Intl?
Most people fly into Ottawa (YOW) if they book a flight to Ottawa from Washington, D.C. Dulles Intl. On average, Ottawa has 9 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.
How long is the flight from Washington, D.C. Dulles Intl Airport to Ottawa?
Lufthansa and United Airlines can get you from Washington, D.C. Dulles Intl Airport to Ottawa in just under 1h 48m. Your travel time will be generally consistent. Airlines will cover a distance of 723 km. Generally, flights for this route are direct.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Ottawa?
No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Ottawa consider choosing Air Canada (79%), GoJet (75%) or United Airlines (72%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Ottawa?
On average you can expect to pay C$ 1,614 for a flight from Washington, D.C. Dulles Intl Airport to Ottawa. The cheapest flight overall is C$ 1,614 while the most popular route, (Washington, D.C. Dulles Intl - Ottawa) is currently priced at C$ 444.
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, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ottawa (average of C$ 510). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in February is currently the most expensive (average of C$ 1,075). 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.

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How does Cheapflights help users find flights from Dulles Intl to Ottawa?

When you search for this flight from Dulles Intl to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Ottawa?

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to Ottawa by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dulles Intl to Ottawa with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dulles Intl to Ottawa flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Dulles Intl to Ottawa become cheaper?

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Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from C$ 199

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 7 October 2026.

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 7 October 2026.

Best flights from Dulles Intl to OttawaDiscover 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 7 October 2026.

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 7 October 2026.

Direct flights from Dulles Intl to OttawaExplore direct flight options from Dulles Intl to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 October 2026.

Explore direct flight options from Dulles Intl to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 October 2026.

Last-minute flights from Dulles Intl to OttawaDiscover last-minute flight deals from Dulles Intl to Ottawa. Data last updated 7 October 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Ottawa. Data last updated 7 October 2026 and is based on user searches.

One-way flights from Dulles Intl to OttawaSearch for one-way flight options from Dulles Intl to Ottawa. Find affordable one-way fares based on user searches. Data last updated 7 October 2026.

Search for one-way flight options from Dulles Intl to Ottawa. Find affordable one-way fares based on user searches. Data last updated 7 October 2026.

Find flight deals from Dulles Intl to Ottawa

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

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

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?

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Ottawa at noon. Doing so could potentially save you 82% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Ottawa?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Ottawa flights typically cost between C$ 614 and C$ 866 in October.The cheapest round-trip price found within the last 5 days was C$ 443 on Porter Airlines (29 Oct-1 Nov).

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

The most flights from IAD to YOW are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

Related info for your journey

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 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?

Travelling to a place near Ottawa?

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Alternative routes for Dulles Intl to Ottawa

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Complete your trip

Complete your trip to Ottawa by adding a car rental and/or hotel reservation to your travel itinerary.

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Search flights from Dulles Intl to Ottawa by cabin class

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Dulles Intl and Ottawa flights

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Can Cheapflights notify me if prices for flights from Dulles Intl to Ottawa become cheaper?

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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 7 October 2026.

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 7 October 2026.

Direct flights from Dulles Intl to Ottawa
Explore direct flight options from Dulles Intl to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 October 2026.

Last-minute flights from Dulles Intl to Ottawa
Discover last-minute flight deals from Dulles Intl to Ottawa. Data last updated 7 October 2026 and is based on user searches.

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 7 October 2026.

Washington, D.C. Dulles Intl Airport to Ottawa flights typically cost between C$ 614 and C$ 866 in October.
The cheapest round-trip price found within the last 5 days was C$ 443 on Porter Airlines (29 Oct-1 Nov).