What are the cheapest airlines to fly from USA to Ottawa one-way?

For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as $71. Users have also found prices from $116 and $124 on WestJet and Air Canada, respectively.

What is the cheapest month to book a flight from USA to Ottawa?

Currently, January is the cheapest month in which you can book a flight from USA to Ottawa (average of $294). Flying from USA to Ottawa in September is currently the most expensive (average of $428). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in Ottawa ranges from 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

What are the most popular routes from USA to Ottawa?

Most travelers choose Newark - Ottawa, New York John F Kennedy Intl - Ottawa or San Francisco - Ottawa when deciding on the best route from USA to Ottawa.

What are the most popular airlines that fly from USA to Ottawa?

The most popular airlines flying from USA to Ottawa are Air Canada, Porter Airlines and United Airlines. Something to consider prior to booking your flight.

How far in advance should I book a flight from USA to Ottawa?

Travelers have found it’s best to book a flight 50 days in advance to save up to 121% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 50 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from USA to Ottawa 1-2 weeks in advance for as low as $248, or $332 for flights within the next 24 hours.

What is the cheapest month to fly from USA to Ottawa?

Our data shows that May tends to be the cheapest month to fly to Ottawa from USA. Users have commonly found prices around $283 for the month, but tickets can be as low as $133. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest time of day to fly from US to YOW?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to Ottawa as you normally would.

What airport do you fly into for flights to Ottawa from United States?

Most people fly into Ottawa (YOW) if they book a flight to Ottawa from United States. Ottawa is conveniently located just 6.6 mi from Ottawa’s city center.

Can I find deals for flights from USA to Ottawa that include hotel bookings?

Yes. In addition to deals on USA to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from USA to Ottawa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Ottawa.

Can I find deals for business class flights from USA to Ottawa?

Yes. Cheapflights offers flight deals from USA to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$248+ Flights from the United States to Ottawa

Round-trip from	$232 (Kiwi.com)
One-way from	$71 (Kiwi.com)
Popular in	December
Cheapest in	May
Average price	$275
Good round-trip deal	$178 or less
Good one-way deal	$120 or less

Porter Airlines

PorterReserve includes early boarding and front-of-cabin seating with extra legroom (36 inches).

PorterClassic offers free snacks and drinks, plus no middle seats for a comfortable journey.

Read more about Porter Airlinesby Daniel Scheffler

Air Canada

Economy Latitude includes priority check-in and two checked bags, ideal for added convenience.

Preferred Seats offer up to four inches extra space; free for Aeroplan Elite or Economy Latitude.

Read more about Air Canadaby Jessica Macdonald

United Airlines

Basic Economy allows no carry-on bags unless flying to Canada; check restrictions carefully.

Prepay checked bags 24 hours before to save on fees; premium cabins may skip fees.

Read more about United Airlinesby Harriet Baskas

WestJet

EconoFlex includes one free checked bag and free seat selection, ideal for flexible travel.

Pay for checked bags in advance online to save; fees increase within 24 hours of departure.

Air Transat

Club Class offers priority check-in and boarding, plus extra baggage allowance for comfort.

Option Plus adds extra baggage and priority boarding to Economy Class for less than Club Class.

Read more about Air Transatby Miquel Ros

Airline	Cheapest	Average	Flexibility	On-time
WestJet	Cheapest$120	Average$328	FlexibilityNo cancel fee	On-time60%
Porter Airlines	Cheapest$127	Average$346	FlexibilityNo cancel fee	On-time52%
Air Canada	Cheapest$135	Average$505	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$149	Average$588	FlexibilityNo cancel fee	On-time69%
Air Transat	Cheapest$213	Average$355	FlexibilityNo cancel fee	On-time50%

$71+ Cheap flights from the United States to Ottawa (YOW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from USA to Ottawa

Keep the following information in mind while searching for USA to Ottawa flight deals. Data was last updated julio 3, 2025.

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Find flight deals from USA to Ottawa

Cheapest flights from USA to OttawaExplore the most affordable flight options available from USA to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

Explore the most affordable flight options available from USA to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

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The best insider tips for theUnited States to Ottawa flights

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Best time to book a flight from USA to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from USA with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from the United States to Ottawa

What is the cheapest month to book a flight from USA to Ottawa?

What is the cheapest time of day to fly from US to YOW?

Find hourly flight availability from USA to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated julio 3, 2025.

See what other customers who have flown with Porter Airlines, Delta, and Air Transat from the United States to Ottawa have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from USA to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ottawa from United States?

What are the cheapest airlines to fly from USA to Ottawa one-way?

What are the most popular routes from USA to Ottawa?

Can I find deals for flights from USA to Ottawa that include hotel bookings?

How can I find direct flights from USA to Ottawa?

Can I find deals for business class flights from USA to Ottawa?

What is the cheapest month to book a flight from USA to Ottawa?

Traveling to a place near the United States?

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Cheapest flights from USA to Ottawa
Explore the most affordable flight options available from USA to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.