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Cheap flights from Ottawa to Washington, D.C. Dulles Intl Airport from C$ 187

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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — IAD
26 Jan — 2 Feb1
1 adult

The best prices from Ottawa to Washington, D.C. Dulles Intl are usually found in June or September, booked 29 days in advance, depart on a Saturday or Monday and return on a Friday

Cheap flight deals from Ottawa to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 387

One-way from

C$ 187

Popular in

December

Cheapest in

June

Average price

C$ 556

Good round-trip deal

C$ 720 or less

Good one-way deal

C$ 456 or less
Air Canada
  • Air Canada
  • 10/3-7/4
  • Nonstop
  • 3h 34m total
  • Ottawa to Washington, D.C.
Porter Airlines
  • Porter Airlines
  • 26/2
  • 1 total stop
  • 3h 19m total
  • Ottawa to Washington, D.C.
Highest demand for flights based on searches. 9% potential increase in price (C$ 79 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Average for round-trip flights in January 2025
Price to beat on a round-trip flight from Ottawa to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Ottawa to Washington, D.C. Dulles Intl.

Find flight deals from Ottawa to Dulles Intl

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

Mon 10/37:30 p.m.YOW - IAD
Nonstop1h 53mAir Canada
Sun 6/48:17 a.m.IAD - YOW
Nonstop1h 41mAir Canada
Deal found 20/1C$ 387
Fri 7/35:45 p.m.YOW - IAD
1 stop4h 39mPorter Airlines
Fri 4/47:00 a.m.IAD - YOW
1 stop4h 14mPorter Airlines
Deal found 20/1C$ 389
Thu 20/27:00 a.m.YOW - IAD
1 stop5h 49mMultiple Airlines
Sun 23/210:15 p.m.IAD - YOW
Nonstop1h 39mMultiple Airlines
Deal found 20/1C$ 429
Mon 10/37:30 p.m.YOW - IAD
Nonstop1h 53mUnited Airlines
Thu 3/48:17 a.m.IAD - YOW
Nonstop1h 41mUnited Airlines
Deal found 20/1C$ 595

Find flights from Ottawa to Dulles Intl within your budget

Customize your flight search to find flights from Ottawa to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 13/2

9:45 a.m.-11:38 a.m.

Nonstop1h 53m

Washington, D.C. Dulles Intl

Sun 16/2

10:20 p.m.-10:31 a.m.

1 stop12h 11m

C$ 384

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Fri 7/3

5:45 p.m.-10:24 p.m.

1 stop4h 39m

Washington, D.C. Dulles Intl

Fri 4/4

7:00 a.m.-11:14 a.m.

1 stop4h 14m

C$ 389

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 20/2

7:00 a.m.-12:49 p.m.

1 stop5h 49m

Washington, D.C. Dulles Intl

Sun 23/2

10:15 p.m.-11:54 p.m.

Nonstop1h 39m

C$ 429

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Mon 10/3

7:30 p.m.-9:23 p.m.

Nonstop1h 53m

Washington, D.C. Dulles Intl

Fri 4/4

3:47 p.m.-10:05 p.m.

1 stop6h 18m

C$ 595

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 13/2

9:45 a.m.-11:38 a.m.

Nonstop1h 53m

Washington, D.C. Dulles Intl

Sun 16/2

12:50 p.m.-2:29 p.m.

Nonstop1h 39m

C$ 597

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Tue 1/4

5:55 a.m.-4:23 p.m.

2 stops10h 28m

Washington, D.C. Dulles Intl

Tue 8/4

1:35 p.m.-12:09 a.m.

2 stops10h 34m

C$ 836

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 26/2

9:30 a.m.-12:49 p.m.

1 stop3h 19m

C$ 187

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 26/2

7:30 p.m.-9:23 p.m.

Nonstop1h 53m

C$ 209

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 12/2

5:55 a.m.-12:49 p.m.

1 stop6h 54m

C$ 292

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Tue 4/3

7:30 p.m.-9:23 p.m.

Nonstop1h 53m

C$ 314

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Best time to book a flight from Ottawa to Dulles Intl

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

Travel insights for flights from Ottawa to Dulles Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Dulles Intl. Price data was last updated on 17 January 2025.

The best time to book flights from Ottawa to Washington, D.C. Dulles Intl Airport is 29 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 Ottawa to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Ottawa to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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 YOW to IAD?

Find hourly flight availability from Ottawa to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2025.

A simple way to save on the total cost of your ticket is to fly from Ottawa to Washington, D.C. Dulles Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.

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

Explore weekly flight availability from Ottawa to Dulles Intl. 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 21 January 2025.

The most flights from YOW to IAD are scheduled on a Saturday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 21 January 2025.
Read reviews from past customers who have flown Porter Airlines, Air Canada and United Airlines from Ottawa to Washington, D.C.. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.9
Good
277 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.4
Good
8,984 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.2
Good
2,829 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.0
Good
8,633 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Dulles Intl. 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 from for flights from Ottawa to Washington, D.C. Dulles Intl?

    Ottawa (YOW) is the airport you will fly out of if you book a flight from Ottawa to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Ottawa; the airport handles an average of 4 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Ottawa airport to Washington, D.C. Dulles Intl. It is only a 10.6 km journey to Ottawa (YOW) from Ottawa’s city centre.

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

    According to our current data, Air Canada (C$ 387), Porter Airlines (C$ 389), and United Airlines (C$ 595) offers the cheapest pricing from Ottawa to Washington, D.C. Dulles Intl Airport. These flights start at 29% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as C$ 187 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from C$ 209 and United Airlines from C$ 314 one-way.

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

    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 Ottawa to Washington, D.C. Dulles Intl Airport on time: Avianca (100%), GoJet (66%), Air Canada (66%).

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

    Looking at all options, your cheapest flight can be booked for C$ 285. While the most popular route (Ottawa - Washington, D.C. Dulles Intl) can be booked for C$ 317 on average our data indicates C$ 1,526 when flying from Ottawa to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa to Dulles Intl 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 Ottawa to Washington, D.C. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Ottawa to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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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Top 3 airlines flying from Ottawa to Dulles Intl

Discover the top 3 airlines that operate flights from Ottawa to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 259AverageC$ 556FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 378AverageC$ 455FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 413AverageC$ 598FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Ottawa to Dulles Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to Dulles Intl from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Yes! Cheapflights helps users easily find flights from Ottawa to Dulles Intl with no change fees.

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

Yes! Start tracking prices for Ottawa to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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