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Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from C$ 175

IAD — YOW
19 Nov — 26 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Ottawa

Mon 30/1111:20 a.m. -
1 stop5h 17m
Mon 7/1212:15 p.m. -
1 stop5h 30m
Deal found 16/10C$ 443
Sat 12/1211:20 a.m. -
1 stop5h 18m
Mon 14/127:00 a.m. -
1 stop14h 50m
Deal found 20/10C$ 467
Sat 12/1211:20 a.m. -
1 stop8h 48m
Mon 14/1212:15 p.m. -
1 stop5h 30m
Deal found 20/10C$ 468
Thu 5/116:07 p.m. -
1 stop23h 17m
Mon 9/117:05 a.m. -
1 stop13h 06m
Deal found 19/10C$ 505
Mon 16/1111:20 a.m. -
1 stop6h 52m
Mon 23/1110:20 a.m. -
1 stop7h 24m
Deal found 19/10C$ 513
Tue 17/116:07 p.m. -
2 stops20h 25m
Tue 24/117:05 a.m. -
1 stop14h 57m
Deal found 19/10C$ 523
Mon 16/116:07 p.m. -
1 stop23h 17m
Mon 23/117:05 a.m. -
1 stop14h 57m
Deal found 19/10C$ 525
Thu 3/1211:20 a.m. -
1 stop8h 48m
Thu 10/127:00 a.m. -
1 stop14h 50m
Deal found 19/10C$ 542
Thu 19/115:20 p.m. -
1 stop4h 32m
Mon 23/1112:05 p.m. -
1 stop4h 42m
Deal found 19/10C$ 543
Thu 19/1111:20 a.m. -
1 stop5h 17m
Sun 22/1112:15 p.m. -
1 stop5h 29m
Deal found 19/10C$ 544

Find flight deals from Dulles Intl to Ottawa

Round-trip from

C$ 443

One-way from

C$ 175

Popular in

February

Cheapest in

December

Average price

C$ 755

Good round-trip deal

C$ 764 or less

Good one-way deal

C$ 667 or less
Porter Airlines
  • Porter Airlines
  • 30/11-7/12
  • 2 total stops
  • 10h 47m total
  • Washington, D.C. to Ottawa
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9/12-31/12
  • 9/12-31/12
  • 2 total stops
  • 25h 41m total
  • Washington, D.C. to Ottawa
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 73 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 47 potential savings vs. average RT price).
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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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Price to beat on a one-way 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.

Fly from

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 1/12

3:34 p.m.-11:20 p.m.

1 stop31h 46m

Ottawa

Wed 31/12

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

Nonstop0h 00m

C$ 250

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Sun 13/12

11:20 a.m.-4:38 p.m.

1 stop5h 18m

Ottawa

Wed 31/12

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

Nonstop0h 00m

C$ 310

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Sun 29/11

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$ 316

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Thu 3/12

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$ 317

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Thu 10/12

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$ 341
Quickest round-trip

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Fri 1/1

5:40 p.m.-7:27 p.m.

Nonstop1h 47m

Ottawa

Wed 31/12

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

Nonstop0h 00m

C$ 341

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Wed 9/12

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$ 341

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Tue 15/12

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$ 341

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Thu 3/12

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$ 341

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Sat 12/12

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

Nonstop1h 48m

Ottawa

Mon 14/12

2:00 p.m.-8:10 p.m.

1 stop6h 10m

C$ 647

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/10

Showing 1-10 of 18 resultsSorted by cheapest first
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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

Cheapflights Insights

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

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$ 505). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in February is currently the most expensive (average of C$ 1,065). 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 84% on the flight price compared to flying in the evening, 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$ 480 and C$ 855 in November.
The cheapest round-trip price found within the last 5 days was C$ 443 on Porter Airlines (30 Nov-7 Dec).

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?

    Porter Airlines can get you from Washington, D.C. Dulles Intl Airport to Ottawa in just under 5h 17m. Your travel time can differ by up to . Airlines will cover a distance of 723 km.

  • 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 Republic Airways (90%), Air Canada (84%) or United Airlines (84%) 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$ 1,185 for a flight from Washington, D.C. Dulles Intl Airport to Ottawa. The cheapest flight overall is C$ 389 while the most popular route, (Washington, D.C. Dulles Intl - Ottawa) is currently priced at C$ 575.

  • 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$ 505). Flying from Washington, D.C. Dulles Intl Airport to Ottawa in February is currently the most expensive (average of C$ 1,065). 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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Prescott
Brockville
Wakefield
Pembroke
Smiths Falls

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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?

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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?

Yes, Cheapflights offers price alerts on Dulles Intl to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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