YOW - DEN

$222 Find Cheap Flights from Ottawa to Denver - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$356
Typical prices: $367-$627
WestJet
Mon 10/1Thu 10/4
YOW - DEN • 1 stop
Cheapest one-way
$215
Typical prices: $344-$507
Multiple Airlines
Sat 9/29
YOW - DEN • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Ottawa and Denver. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 49% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Calgary (YYC)
Cheapest • Avg $290 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 6h 29m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ottawa to Denver (YOW-DEN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Denver

Thu, Oct 1 - Sun, Oct 4
WestJet Logo
4:15 pm - 11:20 amYOW  Ottawa-DEN Denver Intl
21h 05m1 stop Calgary
WestJet Logo
12:15 pm - 7:20 pmDEN  Denver Intl-YOW Ottawa
29h 05m1 stop Calgary
$356WestJet
Thu, Oct 1 - Sun, Oct 4
WestJet Logo
6:15 pm - 11:20 amYOW  Ottawa-DEN Denver Intl
19h 05m2 stops Edmonton Calgary
WestJet Logo
12:15 pm - 7:20 pmDEN  Denver Intl-YOW Ottawa
29h 05m1 stop Calgary
$359WestJet
Thu, Oct 1 - Sun, Oct 4
WestJet Logo
6:15 pm - 11:20 amYOW  Ottawa-DEN Denver Intl
19h 05m2 stops Edmonton Calgary
WestJet Logo
12:15 pm - 12:30 pmDEN  Denver Intl-YOW Ottawa
22h 15m2 stops Calgary Edmonton
$391WestJet
Fri, Oct 2 - Tue, Oct 6
Delta Logo
6:55 am - 5:21 pmYOW  Ottawa-DEN Denver Intl
12h 26m2 stops Toronto Pearson Intl Detroit Metropolitan Wayne County
Delta Logo
10:41 am - 12:20 amDEN  Denver Intl-YOW Ottawa
11h 39m2 stops Atlanta Hartsfield-Jackson Toronto Pearson Intl
$411Delta
Mon, Nov 16 - Mon, Nov 23
Air Canada Logo
7:45 am - 6:13 pmYOW  Ottawa-DEN Denver Intl
12h 28m1 stop Vancouver Intl
Air Canada Logo
5:40 pm - 1:40 amDEN  Denver Intl-YOW Ottawa
6h 00m1 stop Toronto Pearson Intl
$598Air Canada
Fri, Nov 13 - Fri, Nov 20
Air Canada Logo
7:45 am - 6:13 pmYOW  Ottawa-DEN Denver Intl
12h 28m1 stop Vancouver Intl
Air Canada Logo
5:40 pm - 1:40 amDEN  Denver Intl-YOW Ottawa
6h 00m1 stop Toronto Pearson Intl
$598Air Canada
Tue, Nov 24 - Sat, Nov 28
Air Canada Logo
7:45 am - 6:13 pmYOW  Ottawa-DEN Denver Intl
12h 28m1 stop Vancouver Intl
Air Canada Logo
11:20 am - 7:52 pmDEN  Denver Intl-YOW Ottawa
6h 32m1 stop Montreal Pierre Elliott Trudeau Intl
$632Air Canada
Mon, Jan 11 - Mon, Jan 11
United Airlines Logo
6:15 am - 4:32 pmYOW  Ottawa-DEN Denver Intl
12h 17m1 stop Chicago O'Hare Intl
United Airlines Logo
8:30 pm - 2:09 pmDEN  Denver Intl-YOW Ottawa
15h 39m1 stop Chicago O'Hare Intl
$672United Airlines
Fri, Nov 13 - Fri, Nov 20
United Airlines Logo
6:15 am - 3:17 pmYOW  Ottawa-DEN Denver Intl
11h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
11:59 pm - 3:07 pmDEN  Denver Intl-YOW Ottawa
13h 08m1 stop Washington, D.C. Dulles Intl
$677United Airlines
Fri, Oct 2 - Tue, Oct 6
United Airlines Logo
6:01 pm - 10:41 pmYOW  Ottawa-DEN Denver Intl
6h 40m1 stop Newark
United Airlines Logo
1:58 pm - 11:54 pmDEN  Denver Intl-YOW Ottawa
7h 56m1 stop Washington, D.C. Dulles Intl
$677United Airlines
Booking Insights

Price, demand and travel trends for Ottawa to Denver flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Ottawa to Denver with more confidence.

How much is a round-trip flight from Ottawa to Denver?

Round-trip flights from Ottawa to Denver start at $356. Prices are below average for this route right now, with typical round-trip fares ranging from $367 to $627. The lowest price found in the past 5 days was $356 on WestJet.

What's the cheapest day of the week to fly from Ottawa to Denver?

Saturday is the cheapest day of the week to fly from Ottawa to Denver, it is 19% cheaper than the average day. Monday is the most expensive day with flight prices 17% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • September is the cheapest month to fly from Ottawa to Denver at $291 round-trip.
  • November ($869) and January ($798) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 198% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Ottawa to Denver flights

Low season

February

Cheapest flight

$215
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 53% increase in price.
Flight from Ottawa to Denver

When to book flights from Ottawa to Denver

Are your dates flexible? Find out the best times to travel from Ottawa to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ottawa to Denver flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Ottawa to Denver?

    Flights from Ottawa to Denver usually depart from Ottawa (YOW) and arrive at Denver Intl (DEN).

  • What cabin classes can I book on flights from Ottawa to Denver?

    Only Economy Class is available on flights from Ottawa to Denver.

  • Which airports do connecting flights from Ottawa to Denver pass through?

    One-stop flights from Ottawa to Denver most commonly connect through:

    • Toronto Pearson Intl (YYZ) - 52% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 30% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) - 11% of one-stop connections
    • Washington, D.C. Dulles Intl (IAD) - 3% of one-stop connections

    Toronto Pearson Intl (YYZ) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Ottawa to Denver?

    On the Ottawa to Denver route, being flexible with your departure day can save you up to 31%. Saturday is the cheapest day at $464 round-trip on average, while Monday is the most expensive at $668: a $204 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in Denver?

    Some of the most popular sights in Denver are Colorado Convention Center, Union Station Denver and Coors Field. These are among the most viewed places in Denver on KAYAK.

  • How long is a flight from Ottawa to Denver?

    A nonstop flight from Ottawa to Denver takes 0h 00m, covering 1,513 miles.

  • Do I need a passport to fly from Ottawa to Denver?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Ottawa to Denver changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $356 to $1,694. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Ottawa to Denver looking right now?

    One-way fares from Ottawa to Denver are currently lower than usual. Average one-way flight prices are about $334, which is 21% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Ottawa to Denver?

    Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 6h 29m, compared with 6h 47m via Montreal Pierre Elliott Trudeau Intl (YUL) and 6h 54m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Ottawa and Denver?

    Denver is 2 hours behind Ottawa (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Denver Intl Airport (DEN)?

    Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $16 for economy cars. Top options include:
    · Routes Car & Truck Rentals
    · Ace
    · NU Car
    · Europcar
    · Hertz

  • How much should I expect to pay for a Ottawa to Denver flight?

    Round-trip flights from Ottawa to Denver range from $367 to $627, with an average of $567 over the past 12 months. Anything below $367 counts as a good deal.

Your guide to booking Ottawa to Denver flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Saturday departure instead of Monday. On this route, Saturday flights average $464 - about $204 less than Monday (31% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ottawa to Denver trip for September. Fares historically average $291 round-trip in that month - typically $578 less than the most expensive month, which is November (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Denver Intl Airport.
    - The Westin Denver International Airport

Everything you need to know for your flight from Ottawa to Denver

Information on your arrival and departure airports

Ottawa (YOW)
Denver (DEN)