Cheap flights from Ottawa to Washington, D.C. from C$ 213
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Washington, D.C. departing on 27/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air Canada flights from Ottawa to Washington, D.C. Dulles Intl Airport
Our best Air Canada deals on Ottawa to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines flights from Ottawa to Washington, D.C. Dulles Intl Airport
Our best United Airlines deals on Ottawa to Washington, D.C. Dulles Intl Airport flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Ottawa to Washington, D.C. Dulles Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?
The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Ottawa is in April. Flight prices, which tend to average around C$ 425, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. Dulles Intl Airport in April, then you should wait until March to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 433.
What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?
According to our data, Friday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Ottawa. The lowest ticket price found for a Friday departure recently was C$ 869. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is C$ 1,078.
What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Our most recent data shows that the best time of day to fly to Washington, D.C. Dulles Intl Airport is in the afternoon. Flights from Ottawa to Washington, D.C. Dulles Intl Airport during this time can be as low as C$ 431. At noon is when there is more demand to fly to Washington, D.C. Dulles Intl Airport, so prices are often more expensive at around C$ 1,076 per ticket.
What is the cheapest Ottawa to Washington, D.C. Dulles Intl flight route?
Fly from Ottawa to Washington, D.C. Dulles Intl for the best Ottawa - Washington, D.C. Dulles Intl flight prices
How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?
You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Ottawa when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around C$ 504 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Ottawa for as low as C$ 379 on momondo.
What cabin class options are available on Ottawa to Washington, D.C. Dulles Intl flights?
There are 4 cabin classes available to choose from on Ottawa to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ottawa to Washington, D.C. Dulles Intl?
Porter Airlines, Air Canada, and United Airlines are the most popular carriers operating from Ottawa to Washington, D.C. Dulles Intl
Which airlines fly to Washington, D.C. Dulles Intl Airport?
Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Ottawa according to our data. Air Canada is the first choice among our users, with 49% of people opting to fly with this airline when travelling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ottawa to Washington, D.C. Dulles Intl Airport on average per day?
As of June 2025, 6 flights take off from Ottawa and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 9:00a.m., with 33% of daily flights taking off at noon.
How many flights depart from Ottawa to Washington, D.C. Dulles Intl Airport on average per week?
The number of flights available between Ottawa and Washington, D.C. Dulles Intl Airport is 42 per week as of June 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from Ottawa to Washington, D.C. Dulles Intl Airport
Cheap Ottawa to Washington, D.C. Dulles Intl Airport (YOW to IAD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ottawa to Washington, D.C. Dulles Intl Airport
How far is Ottawa to Washington, D.C. Dulles Intl by plane?
Washington, D.C. Dulles Intl is 732.9 km away from Ottawa. 1h 35m is a normal flight duration for this route.
When did momondo last update prices for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport refresh daily.
How many operators does momondo search for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport?
As of June 2025, there are 3 operators available to choose from for flights from Ottawa Airport to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Ottawa Airport to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ottawa to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Ottawa to Washington, D.C. Dulles Intl Airport is Canadair (Bombardier) Regional Jet CRJ-550, representing 46.11% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 900 at 10.78%, Embraer 195 E2 at 10.58%, and Airbus A319 at 6.19%.
What is the most popular airline from Ottawa to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ottawa to Washington, D.C. Dulles Intl Airport is Air Canada (47% of total bookings). The next most popular airlines are Porter Airlines (44%) and United Airlines (9%).
Best airlines flying from Ottawa to Washington, D.C. Dulles Intl Airport
Compare and see reviews for airlines that fly from Ottawa to Washington, D.C. Dulles Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 350 | Free Cancellation | Rating 8.0 288 reviews | |||
| PriceFrom C$ 362 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom C$ 441 | Free Cancellation | Rating 7.4 8,790 reviews |
United Airlines Flights From Ottawa to Washington, D.C. Dulles Intl Airport
United Airlines operates around 21 flights from Ottawa to Washington, D.C. Dulles Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 460, but momondo users have found United Airlines deals from Ottawa to Washington, D.C. Dulles Intl Airport from as low as C$ 322 round-trip. United Airlines has been scored 7.4/10 in 8,790 reviews.
Air Canada Flights From Ottawa to Washington, D.C. Dulles Intl Airport
Air Canada is also a popular choice for this route. Air Canada flight deals for Ottawa to Washington, D.C. Dulles Intl Airport start from as low as C$ 265 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around C$ 393. Air Canada operates 21 flights to Washington, D.C. Dulles Intl Airport from Ottawa in an average week. Users have rated it 7.1/10 across 9,531 reviews.
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Why should I use momondo to find a flight deal from Ottawa to Washington, D.C.?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ottawa to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Ottawa to Washington, D.C. with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Washington, D.C. from Ottawa with this policy.
How can momondo help me find flights from Ottawa to Washington, D.C.?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Ottawa.
I’m not ready to book a flight from Ottawa to Washington, D.C. right now. Can momondo alert me if prices change?
Price alerts on flights to Washington, D.C. from Ottawa are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.