Find Cheap Flights from Ottawa to Washington Dulles Intl (YOW - IAD)

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Good to Know

Average Price:
$416
(avg. price over the last 2 weeks)
Good Deal:
$248
or less (round trip)

When to Book Flights from Ottawa to Washington Dulles Intl

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $247 or less.
The cheapest flight from Ottawa to Washington Dulles Intl was found 75 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 9% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Ottawa to Washington Dulles Intl Flights

How long does a flight from Ottawa to Washington Dulles Intl take?
An average nonstop flight takes 3h 10m, covering a distance of 449 miles.
How many flights are there between Ottawa and Washington Dulles Intl?
There are 70 (nonstop) flights between Ottawa and Washington Dulles Intl per week, averaging 10 per day.
Which airlines provide the cheapest flights from Ottawa to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Porter Airlines ($236)
Do I need a passport to fly between Ottawa and Washington Dulles Intl?
Yes.
Which airlines fly most frequently between Ottawa and Washington Dulles Intl?
Air Canada (5 times daily), United (5 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Ottawa to Washington Dulles Intl?
For Ottawa to Washington Dulles Intl, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from Washington Dulles Intl back to Ottawa, the best deals are generally found on Wednesday, with Friday being the most expensive.

Book cheap flights from Ottawa to Washington Dulles Intl (round-trip)

Airports
Origin
Ottawa
$236
only
$236
Destination
Washington
$236
only
$236
Sun, Feb 25
YOW
IAD
3h 35m
Thu, Mar 1
IAD
YOW
6h 28m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 1789 reviews
Boarding
8.0
Comfort
8.0
Crew
8.4
Entertainment
7.0
Food
7.9
BOS
YTZ
Excellent 10.0

Prompt service and proximity of airport to the city. We literally walked to our hotel

YTZ
BOS
Excellent 10.0

The Porter Lounge is so nice

YTZ
EWR
Good 7.6

The waiting lounge was nice and complemented with refreshments

When I got to Toronto I was directed to the wrong lounge for a while before I asked and was redirected to the correct lounge

YTZ
IAD
Good 6.0

The cabin crew provided the most information out of the entire experience and were extremely friendly. I appreciate Dawn in particular. The lounge is nice when it is not so over-crowded. I appreciate some complimentary minor snacks and drinks; it certainly helped with the delay. What would normally be sufficient seating and power outlets became people tripping over each other with delayed flights.

The lounge staff were hard to find and not communicative about delays. The board only had 1 update to my departure time, which was 30 mins after the originally scheduled time, and did not update again until 25 minutes after that second time had passed. The lounge staff did not make an announcement until after that board update and even then the information was wrong. The one time I found someone to ask a question to, I was given the same information. I had no idea why there was a delay or what to expect and no way of finding out. It made coordinating next steps upon my arrival to my destination extremely difficult. The lounge is not particularly well-equipped for multiple delayed flights.

YTZ
IAD
Good 6.0

Flight was delayed by 35 mins

Fri, Apr 20
YOW
IAD
3h 10m
Mon, Apr 23
IAD
YOW
4h 28m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 1789 reviews
Boarding
8.0
Comfort
8.0
Crew
8.4
Entertainment
7.0
Food
7.9
YTZ
EWR
Good 7.6

The waiting lounge was nice and complemented with refreshments

When I got to Toronto I was directed to the wrong lounge for a while before I asked and was redirected to the correct lounge

YTZ
BOS
Excellent 8.0

Arriving and calling someone to help me with the wheelchair was good. The women were so friendly and helpful. But when you're "stuck" in a chair and I arrived early, it would be nice for someone to check to see if you had to go the washroom. And I had to flag someone down to get me to the aircraft. No one came by and offered. But overall fantastic experience. I would fly porter again.

Wish their was more food on the flight. Even though it was a short one.

EWR
YTZ
Okay 5.0

The flight attendants were nice and pleasant

BOS
YTZ
Excellent 10.0

Prompt service and proximity of airport to the city. We literally walked to our hotel

YTZ
IAD
Good 6.0

Flight was delayed by 35 mins

Tue, May 1
YOW
IAD
3h 25m
Wed, May 2
IAD
YOW
5h 02m
Trip: 2 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 1789 reviews
Boarding
8.0
Comfort
8.0
Crew
8.4
Entertainment
7.0
Food
7.9
YTZ
BOS
Excellent 8.0

Arriving and calling someone to help me with the wheelchair was good. The women were so friendly and helpful. But when you're "stuck" in a chair and I arrived early, it would be nice for someone to check to see if you had to go the washroom. And I had to flag someone down to get me to the aircraft. No one came by and offered. But overall fantastic experience. I would fly porter again.

Wish their was more food on the flight. Even though it was a short one.

YTZ
BOS
Excellent 10.0

The Porter Lounge is so nice

BOS
YTZ
Excellent 10.0

Prompt service and proximity of airport to the city. We literally walked to our hotel

YTZ
IAD
Good 6.0

Flight was delayed by 35 mins

YTZ
IAD
Good 6.0

The cabin crew provided the most information out of the entire experience and were extremely friendly. I appreciate Dawn in particular. The lounge is nice when it is not so over-crowded. I appreciate some complimentary minor snacks and drinks; it certainly helped with the delay. What would normally be sufficient seating and power outlets became people tripping over each other with delayed flights.

The lounge staff were hard to find and not communicative about delays. The board only had 1 update to my departure time, which was 30 mins after the originally scheduled time, and did not update again until 25 minutes after that second time had passed. The lounge staff did not make an announcement until after that board update and even then the information was wrong. The one time I found someone to ask a question to, I was given the same information. I had no idea why there was a delay or what to expect and no way of finding out. It made coordinating next steps upon my arrival to my destination extremely difficult. The lounge is not particularly well-equipped for multiple delayed flights.

Fri, Jun 1
YOW
IAD
3h 25m
Mon, Jun 4
IAD
YOW
3h 33m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 1789 reviews
Boarding
8.0
Comfort
8.0
Crew
8.4
Entertainment
7.0
Food
7.9
YTZ
YQG
Okay 4.0

Was not happy that the flight kept on getting delayed a 1/2 hr for a few hrs

YTZ
BOS
Excellent 10.0

The Porter Lounge is so nice

YTZ
BOS
Excellent 8.0

Arriving and calling someone to help me with the wheelchair was good. The women were so friendly and helpful. But when you're "stuck" in a chair and I arrived early, it would be nice for someone to check to see if you had to go the washroom. And I had to flag someone down to get me to the aircraft. No one came by and offered. But overall fantastic experience. I would fly porter again.

Wish their was more food on the flight. Even though it was a short one.

EWR
YTZ
Okay 5.0

The flight attendants were nice and pleasant

EWR
YTZ
Good 6.0

They keep us updated at all times about the delays

1 hour delay!!!! And no storm

Fri, Jan 26
YOW
IAD
3h 10m
Fri, Feb 2
IAD
YOW
3h 23m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 1789 reviews
Boarding
8.0
Comfort
8.0
Crew
8.4
Entertainment
7.0
Food
7.9
EWR
YTZ
Okay 5.0

The flight attendants were nice and pleasant

YOW
YTZ
Good 6.6

I could not believe that the wine and beer were free

I did not like the landing. Too much delay and I was concerned that I might have missed my next flight to Newark

EWR
YTZ
Good 6.0

They keep us updated at all times about the delays

1 hour delay!!!! And no storm

YTZ
EWR
Good 7.6

The waiting lounge was nice and complemented with refreshments

When I got to Toronto I was directed to the wrong lounge for a while before I asked and was redirected to the correct lounge

YTZ
IAD
Good 6.0

The cabin crew provided the most information out of the entire experience and were extremely friendly. I appreciate Dawn in particular. The lounge is nice when it is not so over-crowded. I appreciate some complimentary minor snacks and drinks; it certainly helped with the delay. What would normally be sufficient seating and power outlets became people tripping over each other with delayed flights.

The lounge staff were hard to find and not communicative about delays. The board only had 1 update to my departure time, which was 30 mins after the originally scheduled time, and did not update again until 25 minutes after that second time had passed. The lounge staff did not make an announcement until after that board update and even then the information was wrong. The one time I found someone to ask a question to, I was given the same information. I had no idea why there was a delay or what to expect and no way of finding out. It made coordinating next steps upon my arrival to my destination extremely difficult. The lounge is not particularly well-equipped for multiple delayed flights.

Ottawa to Washington Dulles Intl Flight Information

Flights Arrive in Washington Dulles Intl
Flights Depart from Ottawa
Flight Price $236
Distance 449 miles
Airlines Porter Airlines
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.