DEN - YOW

C$ 236 Find Cheap Flights from Denver to Ottawa – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 502
Typical prices: C$ 637-C$ 1,219
WestJet
Tue 2/10Thu 11/10
DEN - YOW • 1 stop
Cheapest one-way flights
C$ 236
Typical prices: C$ 456-C$ 1,025
WestJet
Tue 25/9
DEN - YOW • 2 stops
Direct flights
Not available
There are currently no direct flights between Denver and Ottawa. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
October
Cheapest • 48% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Calgary (YYC)
Cheapest • Avg C$ 646 (round-trip)
Montreal Pierre Elliott Trudeau Intl (YUL)
Shortest trip • 6h 10m (one-way)
Insights
Insights
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We hope you enjoy your trip to Ottawa!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Ottawa (DEN-YOW)

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

Recent round-trip flight deals from Denver to Ottawa

Fri, 2 Oct - Sun, 11 Oct
WestJet Logo
12:15 p.m. - 5:35 a.m.DEN  Denver Intl-YOW Ottawa
15h 20m1 stop Calgary
WestJet Logo
4:15 p.m. - 11:20 a.m.YOW  Ottawa-DEN Denver Intl
21h 05m1 stop Calgary
C$ 502WestJet
Thu, 15 Oct - Sat, 17 Oct
WestJet Logo
12:15 p.m. - 5:35 a.m.DEN  Denver Intl-YOW Ottawa
15h 20m1 stop Calgary
WestJet Logo
4:15 p.m. - 11:20 a.m.YOW  Ottawa-DEN Denver Intl
21h 05m1 stop Calgary
C$ 505WestJet
Fri, 2 Oct - Sun, 11 Oct
Multiple Airlines Logo
7:00 a.m. - 5:35 a.m.DEN  Denver Intl-YOW Ottawa
20h 35m2 stops Phoenix Sky Harbor Intl Calgary
Multiple Airlines Logo
4:15 p.m. - 11:20 a.m.YOW  Ottawa-DEN Denver Intl
21h 05m1 stop Calgary
C$ 507Multiple Airlines
Thu, 15 Oct - Sat, 17 Oct
WestJet Logo
12:15 p.m. - 5:35 a.m.DEN  Denver Intl-YOW Ottawa
15h 20m1 stop Calgary
WestJet Logo
6:15 p.m. - 11:20 a.m.YOW  Ottawa-DEN Denver Intl
19h 05m2 stops Edmonton Calgary
C$ 510WestJet
Fri, 2 Oct - Sun, 11 Oct
WestJet Logo
12:15 p.m. - 12:30 p.m.DEN  Denver Intl-YOW Ottawa
22h 15m2 stops Calgary Edmonton
WestJet Logo
1:20 p.m. - 11:20 a.m.YOW  Ottawa-DEN Denver Intl
24h 00m1 stop Calgary
C$ 556WestJet
Fri, 2 Oct - Sun, 11 Oct
WestJet Logo
12:15 p.m. - 5:35 a.m.DEN  Denver Intl-YOW Ottawa
15h 20m1 stop Calgary
WestJet Logo
1:20 p.m. - 11:20 a.m.YOW  Ottawa-DEN Denver Intl
24h 00m1 stop Calgary
C$ 557WestJet
Thu, 1 Oct - Tue, 6 Oct
Multiple Airlines Logo
12:15 p.m. - 12:55 p.m.DEN  Denver Intl-YOW Ottawa
22h 40m1 stop Calgary
Multiple Airlines Logo
1:20 p.m. - 9:32 a.m.YOW  Ottawa-DEN Denver Intl
22h 12m2 stops Calgary Los Angeles Los Angeles
C$ 563Multiple Airlines
Thu, 1 Oct - Tue, 6 Oct
Multiple Airlines Logo
7:50 p.m. - 5:58 p.m.DEN  Denver Intl-YOW Ottawa
20h 08m2 stops Vancouver Intl Calgary
Multiple Airlines Logo
8:15 p.m. - 11:08 p.m.YOW  Ottawa-DEN Denver Intl
28h 53m2 stops Calgary Vancouver Intl
C$ 572Multiple Airlines
Thu, 1 Oct - Tue, 6 Oct
Multiple Airlines Logo
7:50 p.m. - 5:58 p.m.DEN  Denver Intl-YOW Ottawa
20h 08m2 stops Vancouver Intl Calgary
Multiple Airlines Logo
2:00 p.m. - 4:58 p.m.YOW  Ottawa-DEN Denver Intl
28h 58m3 stops Hamilton Calgary Vancouver Intl
C$ 582Multiple Airlines
Wed, 30 Sep - Wed, 7 Oct
Multiple Airlines Logo
10:38 a.m. - 12:20 a.m.DEN  Denver Intl-YOW Ottawa
11h 42m2 stops Nashville Intl Toronto Pearson Intl
Multiple Airlines Logo
8:15 p.m. - 11:20 a.m.YOW  Ottawa-DEN Denver Intl
17h 05m1 stop Calgary
C$ 593Multiple Airlines
Booking Insights

Price, demand, and travel trends for Denver to Ottawa flights

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

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

Round-trip flights from Denver to Ottawa start at C$ 502. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 637 to C$ 1,219. The lowest price found in the past 5 days was C$ 502 on WestJet.

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

Tuesday is the cheapest day of the week to fly from Denver to Ottawa and is 42% cheaper than the average day. Friday is the most expensive day with flight prices 15% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Denver to Ottawa flights

Low season

December

Cheapest flight

C$ 236
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly (7% more expensive on average)
Flights from Denver to Ottawa

When to book flights from Denver to Ottawa

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

Your Denver to Ottawa 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 Denver to Ottawa?

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

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

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

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

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

    • Chicago O'Hare Intl (ORD) – 36% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 34% of one-stop connections
    • Calgary (YYC) – 13% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 11% of one-stop connections

    Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 50% on the Denver to Ottawa route. Tuesday is the cheapest departure day at C$ 612 round-trip on average, while Friday is the most expensive at C$ 1,219, a difference of C$ 607. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Which popular places can I visit in Ottawa?

    Some of the most popular sights in Ottawa are Downtown Ottawa, Parliament Hill, and University of Ottawa. These are among the most viewed places in Ottawa on KAYAK.

  • How long does a flight from Denver to Ottawa take?

    A direct flight from Denver to Ottawa takes 0h 00m, covering 3,918 km.

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

    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 Denver to Ottawa 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 C$ 502 to C$ 3,658. That means the highest observed fare was about 7x higher than the lowest one.

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

    One-way fares from Denver to Ottawa are currently lower than usual. Average one-way flight prices are about C$ 345, which is 49% below the typical average for this route.

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

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 6h 10m, compared with 6h 18m via Chicago O'Hare Intl (ORD) and 6h 32m via Toronto Pearson Intl (YYZ).

  • What is the time difference between Denver and Ottawa?

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

  • What car rental options are available at Ottawa Airport (YOW)?

    Ottawa Airport (YOW) hosts 5 major car rental companies, with daily rates starting from around C$ 17 for economy cars. Top options include:
    · Routes Car & Truck Rentals
    · Europcar
    · Alamo
    · Budget
    · Enterprise Rent-A-Car

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

    Round-trip flights from Denver to Ottawa range from C$ 637 to C$ 1,219, with an average of C$ 1,054 over the past 12 months. Anything below C$ 637 counts as a good deal.

Your guide to booking Denver to Ottawa 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 Tuesday departure instead of Friday. On this route, Tuesday flights average C$ 612 – about C$ 607 less than Friday (50% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Denver to Ottawa trip for October. Fares historically average C$ 547 round-trip in that month – typically C$ 1,027 less than the most expensive month, which is March (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ottawa Airport.
    - Hilton Garden Inn Ottawa Airport
    - Fairfield Inn & Suites by Marriott Ottawa Airport
    - Hampton Inn by Hilton Ottawa Airport

More options for your flight from Denver to Ottawa

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

Car rentals in Ottawa
Hotels in Ottawa
Vacations in Ottawa