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YOW - DEN

$215 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
$416
Typical prices: $367-$627
Multiple Airlines
Fri 11/23Sat 12/1
YOW - DEN • 3 stops
Cheapest one-way
$215
Typical prices: $344-$507
Multiple Airlines
Wed 11/14
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

Mon, Nov 23 - Tue, Dec 1
Multiple Airlines Logo
8:25 am - 12:54 amYOW  Ottawa-DEN Denver Intl
18h 29m3 stops Toronto Island Nashville Intl Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:54 am - 8:09 pmDEN  Denver Intl-YOW Ottawa
9h 15m2 stops Nashville Intl Toronto Island
$416Multiple Airlines
Wed, Oct 21 - Fri, Oct 23
Delta Logo
6:50 am - 5:52 pmYOW  Ottawa-DEN Denver Intl
13h 02m2 stops Toronto Pearson Intl Atlanta Hartsfield-Jackson
Delta Logo
12:59 am - 5:35 pmDEN  Denver Intl-YOW Ottawa
14h 36m2 stops Detroit Metropolitan Wayne County Toronto Pearson Intl
$457Delta
Fri, Nov 20 - Fri, Nov 27
Multiple Airlines Logo
12:45 pm - 8:39 amYOW  Ottawa-DEN Denver Intl
21h 54m2 stops Toronto Pearson Intl Tampa
Multiple Airlines Logo
7:12 pm - 12:50 amDEN  Denver Intl-YOW Ottawa
27h 38m3 stops Atlanta Hartsfield-Jackson Tampa Toronto Pearson Intl
$483Multiple Airlines
Tue, Nov 3 - Tue, Nov 17
Multiple Airlines Logo
5:30 am - 9:32 pmYOW  Ottawa-DEN Denver Intl
18h 02m3 stops Toronto Pearson Intl Fort Lauderdale Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:31 pm - 11:10 pmDEN  Denver Intl-YOW Ottawa
26h 39m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
$483Multiple Airlines
Mon, Nov 23 - Tue, Dec 1
Air Canada Logo
2:55 pm - 8:27 pmYOW  Ottawa-DEN Denver Intl
7h 32m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
11:25 am - 7:52 pmDEN  Denver Intl-YOW Ottawa
6h 27m1 stop Montreal Pierre Elliott Trudeau Intl
$599Air Canada
Wed, Nov 4 - Sun, Nov 8
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
$600Air Canada
Fri, Nov 20 - Mon, Nov 23
Air Canada Logo
7:45 am - 6:13 pmYOW  Ottawa-DEN Denver Intl
12h 28m1 stop Vancouver Intl
Air Canada Logo
8:15 am - 12:56 amDEN  Denver Intl-YOW Ottawa
14h 41m1 stop Vancouver Intl
$629Air Canada
Fri, Nov 20 - Mon, Nov 23
United Airlines Logo
6:15 am - 5:49 pmYOW  Ottawa-DEN Denver Intl
13h 34m1 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
$681United Airlines
Tue, Nov 3 - Tue, Nov 17
United Airlines Logo
9:45 am - 12:19 amYOW  Ottawa-DEN Denver Intl
16h 34m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:00 am - 2:09 pmDEN  Denver Intl-YOW Ottawa
6h 09m1 stop Chicago O'Hare Intl
$681United Airlines
Sat, Dec 19 - Fri, Jan 1
United Airlines Logo
6:15 am - 6:25 pmYOW  Ottawa-DEN Denver Intl
14h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
8:57 pm - 2:09 pmDEN  Denver Intl-YOW Ottawa
15h 12m1 stop Chicago O'Hare Intl
$682United 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 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, Saturday is the cheapest day of the week to fly from Ottawa to Denver. It’s 19% cheaper than the average day, while Monday is the most expensive, with prices 17% higher.

What’s 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.

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Key details for Ottawa to Denver flights

Low season

February

Cheapest flight

$215
Beat the crowds with an average 87% drop 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 $367 to $627, with an average of $567 over the past 12 months. Anything below $367 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 $416 to $1,679. 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 $322, which is 23% 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 $16 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Ace
    • NU Car
    • Europcar
    • 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) - 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

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

    Yes. Flexible dates can save you up to 31% on flights from Ottawa to Denver. Saturday is the cheapest departure day at $464 round-trip on average, while Monday is the most expensive at $668, a difference of $204.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • 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 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 Saturday departure and avoid flying on Monday. On this route, Saturday flights average $464, about $204 less than Monday fares (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

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