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Cheap flights from Denver to Ottawa from C$ 239

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YOW
3 Feb — 10 Feb1
1 adult

Cheap flight deals from Denver to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 January 2025.

Round-trip from

C$ 485

One-way from

C$ 239

Popular in

April

Cheapest in

October

Average price

C$ 983
3/4-14/4
  • 3/4-14/4
  • 3 total stops
  • 32h 02m total
  • Denver to Ottawa
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13/3
  • 13/3
  • 3 total stops
  • 30h 45m total
  • Denver to Ottawa
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Highest demand for flights based on searches. 35% potential increase in price (C$ 749 potential increase over avg. RT price).
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Cheapest flight prices on average. 13% potential price decrease (C$ 159 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Denver to Ottawa

Cheapest flights from Denver to Ottawa
Explore the most affordable flight options available from Denver to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 January 2025.

Thu 3/49:09 p.m.DEN - YOW
2 stops15h 11mMultiple Airlines
Mon 14/46:10 p.m.YOW - DEN
1 stop16h 51mMultiple Airlines
Deal found 29/1C$ 485
Thu 19/612:15 p.m.DEN - YOW
1 stop10h 26mWestJet
Mon 23/63:45 p.m.YOW - DEN
1 stop21h 42mWestJet
Deal found 29/1C$ 747
Sat 15/26:00 a.m.DEN - YOW
1 stop6h 29mUnited Airlines
Sat 22/25:00 p.m.YOW - DEN
1 stop6h 58mUnited Airlines
Deal found 29/1C$ 838
Mon 17/37:05 p.m.DEN - YOW
1 stop17h 34mAir Canada
Sat 22/36:00 p.m.YOW - DEN
1 stop16h 56mAir Canada
Deal found 29/1C$ 913
Fri 31/111:04 a.m.DEN - YOW
2 stops11h 06mDelta
Tue 4/25:55 a.m.YOW - DEN
2 stops10h 01mDelta
Deal found 29/1C$ 1,936

Find flights from Denver to Ottawa within your budget

Customize your flight search to find flights from Denver to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 3/4

9:09 p.m.-2:20 p.m.

2 stops15h 11m

Ottawa

Mon 14/4

6:10 p.m.-9:01 a.m.

1 stop16h 51m

C$ 485

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 19/6

12:15 p.m.-12:41 a.m.

1 stop10h 26m

Ottawa

Mon 23/6

3:45 p.m.-11:27 a.m.

1 stop21h 42m

C$ 747

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sat 15/2

6:00 a.m.-2:29 p.m.

1 stop6h 29m

Ottawa

Sat 22/2

5:00 p.m.-9:58 p.m.

1 stop6h 58m

C$ 838

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 17/3

7:05 p.m.-2:39 p.m.

1 stop17h 34m

Ottawa

Sat 22/3

6:00 p.m.-8:56 a.m.

1 stop16h 56m

C$ 913

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 13/3

6:20 a.m.-3:05 p.m.

3 stops30h 45m

C$ 239

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 14/3

7:05 p.m.-2:39 p.m.

1 stop17h 34m

C$ 384

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 27/5

6:00 a.m.-9:09 p.m.

2 stops13h 09m

C$ 390

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 27/5

12:15 p.m.-12:41 a.m.

1 stop10h 26m

C$ 436

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/1

Best time to book a flight from Denver to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Denver to Ottawa

Get recent, data-driven insights about flights from Denver to Ottawa including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Denver to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Ottawa. Price data was last updated on 24 January 2025.

The price you pay for your flight from Denver to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 39 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Denver to Ottawa (average of C$ 224). Flying from Denver to Ottawa in March is currently the most expensive (average of C$ 359). 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.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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 29 January 2025.
United Airlines
7.4
Good
8,916 reviews
Check prices

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.7

Crew

8.1

Boarding

7.7

Reviews

1 / 20

6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews
Check prices

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.7

Crew

8.1

Boarding

7.7

Reviews

1 / 20

6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

WestJet
7.2
Good
2,819 reviews
United Airlines
7.4
Good
8,916 reviews
Check prices

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.7

Crew

8.1

Boarding

7.7

Reviews

1 / 20

6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

Air Canada
7.0
Good
8,638 reviews
United Airlines
7.4
Good
8,916 reviews
Check prices

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.7

Crew

8.1

Boarding

7.7

Reviews

1 / 20

6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

Related info for your journey

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

  • What are the cheapest airlines flying from Denver to Ottawa round-trip?

    WestJet, at C$ 747, was found to be the cheapest airline from Denver to Ottawa.Alternate airlines to your destination round-trip include United Airlines and Air Canada. WestJet is currently priced 19% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as C$ 384. Users have also found prices from C$ 390 and C$ 436 on United Airlines and WestJet, respectively.

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

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

  • How can I find direct flights from Denver to Ottawa?

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

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

    Yes. Cheapflights offers flight deals from Denver 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.

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

    Currently, October is the cheapest month in which you can book a flight from Denver to Ottawa (average of C$ 224). Flying from Denver to Ottawa in March is currently the most expensive (average of C$ 359). 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.

See more FAQs

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Gatineau
Smiths Falls
Perth
Prescott
Brockville
Lanark

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Top airline flying from Denver to Ottawa

Discover the top airline that operate flights from Denver to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 495AverageC$ 982FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Denver to Ottawa?

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Why should you use Cheapflights to find cheap flight tickets from Denver to Ottawa?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Denver to Ottawa.

Can Cheapflights find flights from Denver to Ottawa with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Denver to Ottawa, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Denver to Ottawa become cheaper?

Yes! Start tracking prices for Denver to Ottawa flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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