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Cheap flights from Ottawa to Denver from $198

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Denver departing on 6/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ottawa to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
WestJet Logo
12:15 pm - 5:15 pm
DEN
-
YOW
27h 00m
1 stop
$366WestJet
Mon, Jun 1 - Thu, Jun 4
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
$371WestJet
Mon, Jun 1 - Wed, Jun 3
WestJet Logo
4:15 pm - 11:20 am
YOW
-
DEN
21h 05m
1 stop
WestJet Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
$372WestJet
Tue, May 19 - Thu, May 21
WestJet Logo
4:15 pm - 11:20 am
YOW
-
DEN
21h 05m
1 stop
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
$377WestJet
Sun, Jun 14 - Tue, Jul 14
WestJet Logo
7:20 am - 11:20 am
YOW
-
DEN
30h 00m
1 stop
WestJet Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
$382WestJet
Mon, Jun 1 - Wed, Jun 3
WestJet Logo
4:15 pm - 11:20 am
YOW
-
DEN
21h 05m
1 stop
WestJet Logo
12:15 pm - 3:20 pm
DEN
-
YOW
25h 05m
1 stop
$384WestJet
Sun, Jun 14 - Tue, Jul 14
WestJet Logo
1:20 pm - 11:20 am
YOW
-
DEN
24h 00m
1 stop
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
$388WestJet
Thu, Sep 17 - Mon, Sep 21
WestJet Logo
6:55 am - 11:20 am
YOW
-
DEN
30h 25m
2 stops
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
$389WestJet
Thu, Sep 17 - Mon, Sep 21
WestJet Logo
1:20 pm - 11:20 am
YOW
-
DEN
24h 00m
1 stop
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
$393WestJet
Wed, Jul 8 - Wed, Jul 15
WestJet Logo
7:20 am - 11:20 am
YOW
-
DEN
30h 00m
1 stop
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
$397WestJet
Tue, May 19 - Thu, May 21

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Delta flights from Ottawa to Denver

Our best Delta deals on Ottawa to Denver flight tickets
Delta
Jun 1
YOW12:25 pmOttawa
13h 16m
2 stops
DEN11:41 pmDenver Intl
Jun 3
DEN11:25 amDenver Intl
10h 55m
2 stops
YOW12:20 amOttawa
$431
Delta
Jun 15
YOW12:25 pmOttawa
9h 37m
2 stops
DEN8:02 pmDenver Intl
Jun 20
DEN6:05 amDenver Intl
9h 30m
2 stops
YOW5:35 pmOttawa
$449
Delta
Jun 2
YOW6:55 amOttawa
12h 19m
2 stops
DEN5:14 pmDenver Intl
Jun 5
DEN1:50 pmDenver Intl
8h 30m
2 stops
YOW12:20 amOttawa
$457

WestJet flights from Ottawa to Denver

Our best WestJet deals on Ottawa to Denver flight tickets
WestJet
Jun 1
YOW6:15 pmOttawa
19h 05m
2 stops
DEN11:20 amDenver Intl
Jun 4
DEN12:15 pmDenver Intl
27h 00m
1 stop
YOW5:15 pmOttawa
$366
WestJet
Jun 1
YOW6:15 pmOttawa
19h 05m
2 stops
DEN11:20 amDenver Intl
Jun 3
DEN12:15 pmDenver Intl
22h 15m
2 stops
YOW12:30 pmOttawa
$371
WestJet
May 19
YOW4:15 pmOttawa
21h 05m
1 stop
DEN11:20 amDenver Intl
May 21
DEN12:15 pmDenver Intl
15h 20m
1 stop
YOW5:35 amOttawa
$372

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 5, 2026.
Use the filters below to find and compare flights from Ottawa to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 6/1

6:15 pm-11:20 am

2 stops19h 05m

Denver Intl

Thu 6/4

12:15 pm-5:15 pm

1 stop27h 00m

$366

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 6/1

6:15 pm-11:20 am

2 stops19h 05m

Denver Intl

Wed 6/3

12:15 pm-12:30 pm

2 stops22h 15m

$371
Quickest round-trip

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 5/19

4:15 pm-11:20 am

1 stop21h 05m

Denver Intl

Thu 5/21

12:15 pm-5:35 am

1 stop15h 20m

$372

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sun 6/14

4:15 pm-11:20 am

1 stop21h 05m

Denver Intl

Tue 7/14

12:15 pm-12:30 pm

2 stops22h 15m

$377

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 6/1

7:20 am-11:20 am

1 stop30h 00m

Denver Intl

Wed 6/3

12:15 pm-5:35 am

1 stop15h 20m

$382

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sun 6/14

4:15 pm-11:20 am

1 stop21h 05m

Denver Intl

Tue 7/14

12:15 pm-3:20 pm

1 stop25h 05m

$384

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 9/17

1:20 pm-11:20 am

1 stop24h 00m

Denver Intl

Mon 9/21

12:15 pm-12:30 pm

2 stops22h 15m

$388

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 9/17

6:55 am-11:20 am

2 stops30h 25m

Denver Intl

Mon 9/21

12:15 pm-12:30 pm

2 stops22h 15m

$389

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 7/8

1:20 pm-11:20 am

1 stop24h 00m

Denver Intl

Wed 7/15

12:15 pm-12:30 pm

2 stops22h 15m

$393

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 5/19

7:20 am-11:20 am

1 stop30h 00m

Denver Intl

Thu 5/21

12:15 pm-12:30 pm

2 stops22h 15m

$397

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Ottawa to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ottawa and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Ottawa is in February. Flight prices, which tend to average around $316, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in February, then you should wait until September to fly from Ottawa, when ticket prices are also cheap, with an average price of $325.

How far in advance should I book a flight from Ottawa to Denver?

You are more likely to see cheaper flights to Denver from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $511 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Ottawa for as low as $256 on momondo.

How have Ottawa to Denver flight prices changed over time?

When to book flights from Ottawa to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to Denver (YOW to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Denver

Fastest flight time

9h 37m

Direct flights

None
The fastest flight from Ottawa to Denver takes 9h 37m
There are no direct flights from Ottawa to Denver. There are no popular flight routes from Ottawa to Denver.
Search flight deals

Frequently asked questions about flying from Ottawa to Denver

  • How far is Ottawa to Denver Intl by plane?

    The straight-line distance from Ottawa to Denver Intl is 1530.4 mi. Typically, this will take 9h 37m by plane in normal conditions.

  • When did momondo last update prices for flights from Ottawa Airport to Denver Intl Airport?

    Prices for flights from Ottawa Airport to Denver Intl Airport were last updated today.

  • How many operators does momondo search for flights from Ottawa Airport to Denver Intl Airport?

  • How old do you have to be to fly from Ottawa Airport to Denver Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ottawa to Denver?

Best airlines flying from Ottawa to Denver

Compare and see reviews for airlines that fly from Ottawa to Denver with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $251Free CancellationRating
7.4
9,683 reviews
Search United Airlines flights
Air CanadaPriceFrom $312Free CancellationRating
7.1
10,998 reviews
Search Air Canada flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Manitou Springs
Longmont
Boulder
Greeley
Keystone
Lakewood
Cripple Creek
Westminster
Thornton
Frisco
Centennial
Grand Lake
Winter Park
Englewood
Littleton

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Denver?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ottawa to Denver. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ottawa to Denver with flexible booking policies on momondo?

Yes. All flights to Denver from Ottawa on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ottawa to Denver?

momondo helps you find the best flight between Ottawa and Denver by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ottawa to Denver right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Denver from Ottawa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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