Cheap flights from Ottawa to the United States from C$ 157
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 the United States departing on 8/9. 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, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your resultsTrusted 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 Ottawa to the United States
Cheap round-trip flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
WestJet flights from Ottawa to United States
Our best WestJet deals on Ottawa to United States flight tickets
United Airlines flights from Ottawa to United States
Our best United Airlines deals on Ottawa to United States flight tickets
See travel insights to the United States from
How to get the cheapest flight ticket from Ottawa to United States
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 United States?
The month of June is, on average, the cheapest month to fly to United States from Ottawa, with most prices found around C$ 342. If you don’t want to visit United States in June, then you should wait until May to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 357.
What is the cheapest day to depart on your flight to United States?
On average, the least expensive day to fly to United States from Ottawa is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as C$ 352. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to United States on Saturday is C$ 467.
What is the cheapest time of day to depart on your flight to United States?
Our most recent data shows that the best time of day to fly to United States is in the evening. Flights from Ottawa to United States during this time can be as low as C$ 217. Flights to United States are more costly in the morning, with an average ticket price of C$ 423. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Ottawa to United States flight route?
Fly from Ottawa to Las Vegas Harry Reid Intl for the best Ottawa - United States flight prices
How far in advance should I book a flight to United States?
You are more likely to see cheaper flights to United States from Ottawa when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to United States for around C$ 404 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Ottawa for as low as C$ 349 on momondo.
What cabin class options are available on Ottawa to United States flights?
There are 4 cabin classes available to choose from on Ottawa to United States 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 United States?
WestJet, Porter Airlines, and Air Canada are the most popular carriers operating from Ottawa to United States
Which airlines fly to United States?
Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to United States from Ottawa according to our data. Air Canada is the first choice among our users, with 52% of people opting to fly with this airline when travelling to United States. Keep in mind that there are 9 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ottawa to United States on average per day?
As of June 2025, 24 flights take off from Ottawa and land in United States each day. The most common flight departure time for this route is 4:00p.m., with 52% of daily flights taking off in the afternoon.
How many flights depart from Ottawa to United States on average per week?
As of June 2025, there are 174 flights per week flying from Ottawa to United States. The most common day of the week flights depart is Thu, with 16% of flights taking off on this day.
Cheap Ottawa to United States flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ottawa to United States
Best price found | C$ 157 |
|---|---|
Fastest flight time | 1h 28m |
Direct flights | Every day |
Airports in United States | 6 airports |
When did momondo last update prices for flights from Ottawa Airport to United States?
Prices for flights from Ottawa Airport to United States were last updated today.
How many operators does momondo search for flights from Ottawa Airport to United States?
As of June 2025, there are 5 operators available to choose from for flights from Ottawa Airport to United States.
How old do you have to be to fly from Ottawa Airport to United States?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to United States.
What documentation or ID do you need to fly to United States?
The required travel and health documents for your United States 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 United States. 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 Ottawa to United States?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ottawa to United States is Embraer 195 E2 (32.58% of total bookings). The next most popular plane models are De Havilland (Bombardier) DHC-8-400 Dash 8Q (18.26%), Embraer 175 (Enhanced Winglets) (17.47%), and Canadair (Bombardier) Regional Jet CRJ-550 (12.38%).
Best airlines flying from Ottawa to United States
Compare and see reviews for airlines that fly from Ottawa to United States with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 225 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom C$ 242 | Free Cancellation | Rating 7.2 2,868 reviews | |||
| PriceFrom C$ 272 | Free Cancellation | Rating 8.0 288 reviews | |||
| PriceFrom C$ 280 | Free Cancellation | Rating 7.8 396 reviews | |||
| PriceFrom C$ 309 | Free Cancellation | Rating 7.4 8,790 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ottawa to United States?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United States from Ottawa.
Can I find flights from Ottawa to United States with flexible booking policies on momondo?
momondo does allow users to show only those flights to United States from Ottawa which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Ottawa to United States?
Once all potential Ottawa to United States flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Ottawa to United States right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to United States from Ottawa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.