YOW - DEN

$267 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
$422
Typical prices: $578-$692
Multiple Airlines
Mon 12/3Sun 12/9
YOW - DEN • 2 stops
Cheapest one-way
$267
Typical prices: $361-$520
Multiple Airlines
Tue 12/4
YOW - DEN • 3 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 • 10% 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 35m (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, Dec 3 - Wed, Dec 9
Multiple Airlines Logo
9:10 am - 7:51 pmYOW  Ottawa-DEN Denver Intl
12h 41m2 stops Toronto Pearson Intl Los Angeles
Multiple Airlines Logo
9:53 am - 9:15 amDEN  Denver Intl-YOW Ottawa
21h 22m2 stops Los Angeles Toronto Pearson Intl
$422Multiple Airlines
Tue, Dec 1 - Wed, Dec 16
Multiple Airlines Logo
4:40 pm - 8:09 amYOW  Ottawa-DEN Denver Intl
17h 29m1 stop Tampa
Multiple Airlines Logo
10:18 am - 12:09 amDEN  Denver Intl-YOW Ottawa
35h 51m2 stops Dallas/Fort Worth Tampa
$449Multiple Airlines
Thu, Dec 3 - Wed, Dec 9
Multiple Airlines Logo
5:10 am - 7:12 pmYOW  Ottawa-DEN Denver Intl
16h 02m3 stops Toronto Pearson Intl Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:53 am - 9:15 amDEN  Denver Intl-YOW Ottawa
21h 22m2 stops Los Angeles Toronto Pearson Intl
$452Multiple Airlines
Mon, Dec 14 - Thu, Dec 17
Multiple Airlines Logo
7:00 am - 7:45 pmYOW  Ottawa-DEN Denver Intl
14h 45m2 stops Toronto Pearson Intl Los Angeles
Multiple Airlines Logo
6:00 am - 12:09 amDEN  Denver Intl-YOW Ottawa
16h 09m1 stop Tampa
$461Multiple Airlines
Mon, Dec 14 - Thu, Dec 17
Multiple Airlines Logo
7:00 am - 7:45 pmYOW  Ottawa-DEN Denver Intl
14h 45m2 stops Toronto Pearson Intl Los Angeles
Multiple Airlines Logo
6:25 am - 12:09 amDEN  Denver Intl-YOW Ottawa
15h 44m2 stops Dallas/Fort Worth Tampa
$469Multiple Airlines
Tue, Dec 1 - Wed, Dec 16
Multiple Airlines Logo
7:00 am - 9:49 pmYOW  Ottawa-DEN Denver Intl
16h 49m3 stops Toronto Pearson Intl Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl
Multiple Airlines Logo
7:39 am - 12:41 amDEN  Denver Intl-YOW Ottawa
15h 02m3 stops San Francisco Las Vegas Harry Reid Intl Toronto Pearson Intl
$483Multiple Airlines
Tue, Dec 1 - Wed, Dec 16
Multiple Airlines Logo
7:00 am - 9:49 pmYOW  Ottawa-DEN Denver Intl
16h 49m3 stops Toronto Pearson Intl Las Vegas Harry Reid 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
$490Multiple Airlines
Thu, Dec 3 - Wed, Dec 9
Multiple Airlines Logo
5:10 am - 7:12 pmYOW  Ottawa-DEN Denver Intl
16h 02m3 stops Toronto Pearson Intl Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:25 am - 1:40 amDEN  Denver Intl-YOW Ottawa
16h 15m3 stops Phoenix Sky Harbor Intl Los Angeles Toronto Pearson Intl
$495Multiple Airlines
Thu, Dec 3 - Wed, Dec 9
Air Canada Logo
7:45 am - 6:13 pmYOW  Ottawa-DEN Denver Intl
12h 28m1 stop Vancouver Intl
Air Canada Logo
8:15 am - 12:26 amDEN  Denver Intl-YOW Ottawa
14h 11m2 stops Vancouver Intl Calgary
$684Air Canada
Thu, Dec 3 - Wed, Dec 9
Air Canada Logo
7:45 am - 6:13 pmYOW  Ottawa-DEN Denver Intl
12h 28m1 stop Vancouver Intl
Air Canada Logo
1:30 pm - 9:50 pmDEN  Denver Intl-YOW Ottawa
6h 20m1 stop Toronto Pearson Intl
$684Air 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, Wednesday is the cheapest day of the week to fly from Ottawa to Denver. It’s 8% cheaper than the average day, while Tuesday is the most expensive, with prices 24% 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.
•January ($798) and October ($743) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 41% 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

September

Cheapest flight

$267
Beat the crowds with an average 41% 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 $578 to $692, with an average of $622 over the past 12 months. Anything below $578 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 $422 to $1,856. That means the highest observed fare was about 4x 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 $320, 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 averaging $56 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Europcar
    • Ace
    • 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) - 57% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) - 19% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 18% of one-stop connections
    • Washington, D.C. Dulles Intl (IAD) - 2% 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 26% on flights from Ottawa to Denver. Wednesday is the cheapest departure day at $578 round-trip on average, while Tuesday is the most expensive at $776, a difference of $198.

    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 35m, 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 Wednesday departure and avoid flying on Tuesday. On this route, Wednesday flights average $578, about $198 less than Tuesday fares (26% 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 $236 less than the most expensive month, which is January (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