YOW - DEN

$247 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
$496
Typical prices: $566-$691
Multiple Airlines
Sun 11/25Sun 12/2
YOW - DEN • 3 stops
Cheapest one-way
$259
Typical prices: $361-$507
Multiple Airlines
Sun 11/25
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
April
Cheapest • 8% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Orlando (MCO)
Cheapest • Avg $330 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 6h 31m (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

Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
10:15 am - 12:07 amYOW  Ottawa-DEN Denver Intl
15h 52m3 stops Toronto Pearson Intl Edmonton Phoenix Sky Harbor Intl
Multiple Airlines Logo
8:54 am - 8:08 pmDEN  Denver Intl-YOW Ottawa
9h 14m2 stops Nashville Intl Toronto Island
$496Multiple Airlines
Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
8:40 am - 12:07 amYOW  Ottawa-DEN Denver Intl
17h 27m2 stops Vancouver Intl Phoenix Sky Harbor Intl
Multiple Airlines Logo
8:54 am - 8:08 pmDEN  Denver Intl-YOW Ottawa
9h 14m2 stops Nashville Intl Toronto Island
$514Multiple Airlines
Fri, Nov 27 - Fri, Dec 4
Multiple Airlines Logo
10:20 am - 12:54 amYOW  Ottawa-DEN Denver Intl
16h 34m3 stops Toronto Island Nashville Intl Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:10 am - 12:41 amDEN  Denver Intl-YOW Ottawa
15h 31m3 stops Dallas/Fort Worth Tampa Toronto Pearson Intl
$545Multiple Airlines
Fri, Nov 27 - Fri, Dec 4
Multiple Airlines Logo
8:40 am - 12:07 amYOW  Ottawa-DEN Denver Intl
17h 27m2 stops Vancouver Intl Phoenix Sky Harbor Intl
Multiple Airlines Logo
7:25 am - 12:41 amDEN  Denver Intl-YOW Ottawa
15h 16m2 stops Phoenix Sky Harbor Intl Toronto Pearson Intl
$549Multiple Airlines
Fri, Jan 15 - Mon, Jan 18
Multiple Airlines Logo
7:05 am - 8:07 pmYOW  Ottawa-DEN Denver Intl
15h 02m1 stop Fort Lauderdale
Multiple Airlines Logo
8:55 am - 1:12 pmDEN  Denver Intl-YOW Ottawa
26h 17m2 stops Phoenix Sky Harbor Intl Calgary
$560Multiple Airlines
Fri, Nov 27 - Fri, Dec 4
Multiple Airlines Logo
7:00 am - 6:25 pmYOW  Ottawa-DEN Denver Intl
13h 25m2 stops Toronto Pearson Intl Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:10 am - 12:41 amDEN  Denver Intl-YOW Ottawa
15h 31m3 stops Dallas/Fort Worth Tampa Toronto Pearson Intl
$563Multiple Airlines
Thu, Jan 14 - Mon, Jan 18
Multiple Airlines Logo
7:00 am - 8:19 pmYOW  Ottawa-DEN Denver Intl
15h 19m2 stops Toronto Pearson Intl Los Angeles
Multiple Airlines Logo
6:58 pm - 12:07 amDEN  Denver Intl-YOW Ottawa
27h 09m1 stop Tampa
$568Multiple Airlines
Fri, Nov 27 - Fri, Dec 4
Multiple Airlines Logo
7:00 am - 12:54 amYOW  Ottawa-DEN Denver Intl
19h 54m2 stops Toronto Pearson Intl Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:10 am - 12:41 amDEN  Denver Intl-YOW Ottawa
15h 31m3 stops Dallas/Fort Worth Tampa Toronto Pearson Intl
$568Multiple Airlines
Tue, Nov 24 - Sun, Nov 29
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
$577Air Canada
Thu, Nov 19 - Wed, Nov 25
Air Canada Logo
7:45 am - 6:13 pmYOW  Ottawa-DEN Denver Intl
12h 28m1 stop Vancouver Intl
Air Canada Logo
11:25 am - 7:47 pmDEN  Denver Intl-YOW Ottawa
6h 22m1 stop Montreal Pierre Elliott Trudeau Intl
$592Air Canada
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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Ottawa to Denver. It’s 9% cheaper than the average day, while Tuesday is the most expensive, with prices 27% higher.

What’s the cheapest month to fly from Ottawa to Denver?

•April is the cheapest month to fly from Ottawa to Denver at $562 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 54% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Ottawa to Denver flights

Low season

August

Cheapest flight

$259
Beat the crowds with an average 33% drop in travelers.
The most popular month to fly with an average 50% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

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

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

  • How long is a flight from Ottawa to Denver?

    A nonstop flight from Ottawa to Denver takes 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.

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

    Round-trip flights from Ottawa to Denver range from $566 to $691, with an average of $609 over the past 12 months. Anything below $566 counts as a good deal.

  • 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 $496 to $1,382. That means the highest observed fare was about 3x 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 $318, which is 24% below the typical average for this route.

  • 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 $15 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Ace
    • Europcar
    • NU Car
    • Hertz

  • 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).

  • 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) - 53% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 20% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) - 18% of one-stop connections
    • Washington, D.C. Dulles Intl (IAD) - 5% of one-stop connections

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

    Yes. Flexible dates can save you up to 28% on flights from Ottawa to Denver. Friday is the cheapest departure day at $560 round-trip on average, while Tuesday is the most expensive at $776, a difference of $216.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 31m, compared with 6h 50m via Montreal Pierre Elliott Trudeau Intl (YUL) and 7h via Newark (EWR).

  • 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 popular places can I visit in Denver?

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

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 are flexible, aim for a Friday departure and avoid flying on Tuesday. On this route, Friday flights average $560, about $216 less than Tuesday fares (28% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ottawa to Denver trip for April. Fares historically average $562 round-trip in that month - typically $307 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

More options for your flight from Ottawa to Denver

Complete your trip to Denver with a hotel stay or car rental

Car rentals in Denver
Hotels in Denver
Vacations in Denver