Cheap Flights from Washington Dulles to Ottawa

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Flight deals from Washington Dulles to Ottawa

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Ottawa? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington Dulles to Ottawa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Ottawa flights are currently cheapest in April.

Direct flights from Washington Dulles to Ottawa

Alternative Washington Dulles to Ottawa routes

Looking for the cheapest, fastest or easiest route from Washington Dulles to Ottawa? You could fly into the following airports instead.

Washington D.C. to Ottawa: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 357
Cheapest month to flyApril
Average flight time1 hr, 40 mins
Most popular airlineAir Canada
Average flights per week76

Finding cheap flights from Washington Dulles to Ottawa: Frequently asked questions

There are 2 airports in Ottawa: Ottawa International and Ottawa Gatineau.
The best price we found for a return flight from Washington Dulles to Ottawa is ر.ق.‏ 886. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 40 minutes is the average flight time from Washington Dulles to Ottawa.
Air Canada, United and GoJet Airlines fly direct from Washington Dulles to Ottawa.
As of March 2025, there are 76 flights per week flying from Washington Dulles to Ottawa.
The cheapest month to fly from Washington Dulles to Ottawa is usually March 2025.
If you're flying from Washington Dulles Airport, the cheapest airport near Ottawa is Ottawa International – which is 11.2 km away from the centre of Ottawa. We've found flights into this airport from ر.ق.‏ 886.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Ottawa on Wednesday, 16 April 2025.
Yes – the average flight time is 1 hour and 40 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ottawa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around -3°C. July is typically the warmest month in Ottawa, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -16°C. The rainiest month is June.
Currently, Porter Airlines (Canada) Ltd and Air Canada offer the cheapest flight tickets to Ottawa.

Travelling from Washington Dulles International Airport (IAD) to Ottawa: what you need to know

  • The average time for a direct flight from Washington Dulles International Airport to Ottawa is 1 hour 45 minutes.

  • Washington DC (the location of Washington Dulles International Airport) and Ottawa are in the same timezone — UTC-4.

  • With 28 flights a week between the two airports, Washington Dulles International Airport (IAD) to Ottawa/Macdonald-Cartier International Airport (YOW) is the most popular route. United operates the earliest flight at 12:33. If you prefer to make the most of your day before jetting off, the latest departure from IAD to YOW is with United at 22:25.

  • To ensure you catch your flight from IAD to Ottawa, leave plenty of time to check in and find your gate. Turning up two hours before international departures and one hour before domestic flights is the standard rule.

  • Getting on a plane during a peak month like July? High seasons (like summer, Christmas/New Year and spring break) can add another hour at check-in and security. Be extra safe and arrive up to four hours before an international flight and two hours before a domestic departure.

  • You can book a nonstop flight from Washington Dulles International Airport to Ottawa. Start your trip at IAD and land at Ottawa/Macdonald-Cartier International Airport (YOW).

  • Book your ticket with United. This airline operates direct flights from Washington Dulles International Airport to Ottawa.

  • A stopover is the ideal opportunity to break up your journey — and possibly even tour another city. When searching for flights from IAD to Ottawa, uncheck the 'Direct flights only' box to see where you can stop along the way. Some popular options include:

    • Montreal-Pierre Elliott Trudeau International Airport (YUL)

    • Newark Liberty International Airport (EWR)

    • Pearson International Airport (YYZ)

  • You can visit Canada for tourism purposes without a visa if you have a passport from United States. But before booking your flight tickets from Washington Dulles International Airport to Ottawa, double-check for the newest rules and regulations. Visa rules are subject to change, and you may require some travel documentation if your trip is for business or other reasons.

  • IAD is about 56 kilometres from central Washington DC. If you're catching a cab, ride-sharing or driving from the centre, it'll take 51 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the travel time to be around 3 hours and 26 minutes.

  • Searching for a handy hotel near IAD? If you've booked an early flight from Washington Dulles International Airport to Ottawa, these accommodation options will have you sleeping moments from check-in:

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Ottawa

  • ر.ق.‏ 357 is the lowest price we've seen for a one-way ticket from Washington Dulles International Airport to Ottawa. For a return flight on this route, the best price is ر.ق.‏ 886. Depending on when you book and the availability, these fares could change.

  • Book 9 months before you travel. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from IAD to Ottawa.

  • Schedule your trip for May. That's the cheapest month for tickets from Washington Dulles International Airport to Ottawa. If you have flexibility with your dates, use the 'Whole month' tool to see the cheapest price across every month.

  • Locking in a cheap ticket from IAD to Ottawa couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Use the filters to tailor your flights from Washington Dulles International Airport to Ottawa. Simply select your ideal departure and arrival times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to see the best deals.

Airports in Ottawa

Ottawa Gatineau Airport (YND)

Ottawa/Macdonald-Cartier International Airport (YOW)

  • After your flight from Washington Dulles International Airport to Ottawa has arrived, you can make your way to the city centre in about 19 minutes by car. Central Ottawa is approximately 13 kilometres from Ottawa/Macdonald-Cartier International Airport (YOW).

  • You can expect the trip to take approximately 43 minutes on public transport.

  • Hang up the 'Do not disturb' sign and rest at a hotel near YOW. Here are a few options where you can take a load off after your flight from IAD to Ottawa:

Best time to go to Ottawa

  • Carefully consider your dates before securing your flight from Washington Dulles International Airport to Ottawa. The city comes alive during peak season, but prices are usually higher and attractions can be busy. Go to Ottawa in the low season if you want a quieter vibe.

  • Lock in your flight from Washington Dulles International Airport to Ottawa for July to experience the city during its warmest month. You can expect temperatures to range from 13ºC to 27ºC.

  • January sees average temperatures of between -19ºC and -2ºC. Search for cheap flights from IAD to Ottawa sometime around then if you like cooler conditions.

More about Ottawa

  • After booking your flight from Washington Dulles International Airport to Ottawa, think about where to rest your head in this city. Make one of these accommodation options your base for exploring Ottawa:

  • Parliament Hill and Rideau Canal are a couple of major attractions to put on your Ottawa must-do list. Continue your sightseeing adventures at National Gallery of Canada.

Complete your Ottawa trip with a car rental

  • We use the same magic that helped you find your cheap flight from Washington Dulles International Airport to Ottawa to track down awesome deals on car rentals. Search for your ride in seconds and compare your options in one place. Plus you'll find all the info you need on car rentals in Ottawa, from the most popular car type to the best time to book.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.