Cheap flights from Washington, D.C. to Ottawa from $138
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Ottawa departing on 6/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Washington, D.C. to Ottawa
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
United Airlines flights from Washington, D.C. to Ottawa
Our best United Airlines deals on Washington, D.C. to Ottawa flight tickets
Delta flights from Washington, D.C. to Ottawa
Our best Delta deals on Washington, D.C. to Ottawa flight tickets
See travel insights to Ottawa from
How to get the cheapest flight ticket from Washington, D.C. to Ottawa
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 typical price of a round-trip flight between Washington, D.C. and Ottawa?
What is the cheapest month to fly to Ottawa?
In general, January is the cheapest month to fly from Washington, D.C. to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $257. The month of November is another great option to travel to Ottawa, with average flight prices from Washington, D.C. averaging around $309.
What is the cheapest day to depart on your flight to Ottawa?
The cheapest day to depart from Washington, D.C. to Ottawa is on a Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $426. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Tuesday is $546.
What is the cheapest time of day to depart on your flight to Ottawa?
At noon is the cheapest time of day to fly from Washington, D.C. to Ottawa when you can find flight prices for as low as $348. Flying to Ottawa at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $648 on average. Flights to Ottawa from Washington, D.C. in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Washington, D.C. to Ottawa flight route?
Fly from Washington, D.C. Reagan-National to Ottawa for the best Washington, D.C. - Ottawa flight prices
How far in advance should I book a flight to Ottawa?
You are more likely to see cheaper flights to Ottawa from Washington, D.C. when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around $390 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from Washington, D.C. for as low as $266 on momondo.
What cabin class options are available on Washington, D.C. to Ottawa flights?
There are 4 cabin classes available to choose from on Washington, D.C. to Ottawa 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 Washington, D.C. to Ottawa?
Porter Airlines, Air Canada, and United Airlines are the most popular carriers operating from Washington, D.C. to Ottawa
What airlines fly to Ottawa?
Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Ottawa from Washington, D.C. according to our data. Air Canada is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 6 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.
How many flights depart from Washington, D.C. to Ottawa on average per day?
As of April 2025, there are 8 flights per day flying from Washington, D.C. to Ottawa. The most common time of day flights depart is 5:00PM, with 57% of flights taking off in the afternoon.
How many flights depart from Washington, D.C. to Ottawa on average per week?
As of April 2025, there are 59 flights per week flying from Washington, D.C. to Ottawa. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.
When to book flights from Washington, D.C. to Ottawa
Cheap Washington, D.C. to Ottawa (WAS to YOW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Ottawa
How far is Washington, D.C. to Ottawa by plane?
The straight-line distance from Washington, D.C. to Ottawa is 454.6 mi. 1h 31m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Ottawa Airport?
Prices for flights from Washington, D.C. to Ottawa Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Ottawa Airport?
As of April 2025, there are 4 operators available to choose from for flights from Washington, D.C. to Ottawa Airport.
How old do you have to be to fly from Washington, D.C. to Ottawa 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 Washington, D.C. to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Washington, D.C. to Ottawa?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Ottawa is Canadair (Bombardier) Regional Jet CRJ-550, representing 36.37% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 900 at 22.04%, Boeing 777 at 6.28%, and Embraer 175 (Enhanced Winglets) at 4.42%.
What is the most popular airline from Washington, D.C. to Ottawa?
Based on momondo bookings for flights between Washington, D.C. and Ottawa, the leading airline is Air Canada, making up 67% of the total bookings. Other popular airlines include United Airlines with 24% and Porter Airlines with 9%.
Best airlines flying from Washington, D.C. to Ottawa
Compare and see reviews for airlines that fly from Washington, D.C. to Ottawa with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $155 | Free Cancellation | Rating 7.0 9,240 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $201 | Free Cancellation | Rating 8.0 285 reviews | |||
| PriceFrom $347 | Free Cancellation | Rating 7.8 385 reviews |
United Airlines Flights From Washington, D.C. to Ottawa
The lowest priced United Airlines flight from Washington, D.C. to Ottawa from the last 72 hours was $176. Generally, United Airlines has 28 flights on this route every week with an average price of $514. United Airlines is rated 7.4/10 by our users.
Air Canada Flights From Washington, D.C. to Ottawa
Across 9,242 Air Canada reviews on momondo, the average score is 7.0/10. Air Canada flies from Washington, D.C. to Ottawa about 24 times each week, with ticket deals ranging from $155 to $400. Price data is based on momondo searches in the last 72 hours.
Traveling to a place near Ottawa?
Book flights to Ottawa if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Ottawa?
It is quick and easy to find Washington, D.C. to Ottawa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ottawa that suits you.
Can I find flights from Washington, D.C. to Ottawa with flexible booking policies on momondo?
All flight searches from Washington, D.C. to Ottawa on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Washington, D.C. to Ottawa?
Once you have performed a search for Washington, D.C. to Ottawa flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Washington, D.C. to Ottawa right now. Can momondo alert me if prices change?
Price alerts on flights to Ottawa from Washington, D.C. 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.