Cheap flights from Ontario to Colorado

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Tue 7/12
Tue 14/12

How far in advance should I book a flight from Region of Ontario to Colorado?

To save up to 26% on this flight, we recommend booking at least 48 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Region of Ontario to Colorado from C$ 710 1-2 weeks out and tickets from C$ 844 for flights departing within the next 72 hours.

What is the cheapest month to fly from Region of Ontario to Colorado?

Our data shows that August tends to be the cheapest month to fly to Colorado from Region of Ontario. Users have commonly found prices around C$ 628 for the month, but tickets can be as low as C$ 374. Due to multiple factors, prepare for potentially higher prices in February.

When is the cheapest time to fly from Region of Ontario to Colorado (ON - CO)?

When flying from Region of Ontario to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Ontario to Colorado in December, January 2021

The best prices found for Ontario to Colorado flights for December, January
19 Jan. - 24 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

18h 47m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

2 stops

26h 05m
C$ 356

Multiple Airlines

View Deal

Deal found 30/11/21

10 Jan. - 24 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

25h 05m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

2 stops

26h 05m
C$ 359

Multiple Airlines

View Deal

Deal found 29/11/21

10 Jan. - 18 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

25h 05m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

2 stops

33h 25m
C$ 361

Multiple Airlines

View Deal

Deal found 30/11/21

Ontario to Colorado 2021 flight deals

Cheap flights to Colorado from Ontario found for this year
11 Dec. - 23 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

13h 18m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

1 stop

24h 38m
C$ 467

Multiple Airlines

View Deal

Deal found 29/11/21

11 Dec. - 23 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

13h 18m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

2 stops

26h 05m
C$ 481

Multiple Airlines

View Deal

Deal found 29/11/21

8 Dec. - 11 Dec.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

15h 21m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

2 stops

22h 37m
C$ 484

Multiple Airlines

View Deal

Deal found 29/11/21

Direct flights to Colorado from Ontario

Save time with Ontario to Colorado direct flight deals
13 May - 16 May
YYZ

Toronto Pearson Intl

DEN

Denver Intl

Nonstop

3h 35m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

Nonstop

3h 10m
C$ 203

Flair Airlines

View Deal

Deal found 1/12/21

5 Feb. - 10 Feb.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

Nonstop

3h 51m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

Nonstop

3h 08m
C$ 359

Air Canada

View Deal

Deal found 29/11/21

4 Feb. - 18 Feb.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

Nonstop

3h 51m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

Nonstop

3h 08m
C$ 375

Air Canada

View Deal

Deal found 29/11/21

Last minute flights from Ontario to Colorado

Late deals on round-trip flights to Colorado from Ontario, departing today and this week
11 Dec. - 23 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

13h 18m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

1 stop

24h 38m
C$ 467

Multiple Airlines

View Deal

Deal found 29/11/21

11 Dec. - 23 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

13h 18m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

2 stops

26h 05m
C$ 481

Multiple Airlines

View Deal

Deal found 29/11/21

8 Dec. - 11 Dec.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

1 stop

15h 21m
DEN

Denver Intl

YYZ

Toronto Pearson Intl

2 stops

22h 37m
C$ 484

Multiple Airlines

View Deal

Deal found 29/11/21

One-way flights to Colorado from Ontario

The cheapest one-way flights from Ontario to Colorado
20 Apr.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

Nonstop

3h 35m
C$ 139

Flair Airlines

View Deal

Deal found 30/11/21

26 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

2 stops

17h 28m
C$ 179

Multiple Airlines

View Deal

Deal found 1/12/21

26 Jan.
YYZ

Toronto Pearson Intl

DEN

Denver Intl

2 stops

17h 28m
C$ 180

Multiple Airlines

View Deal

Deal found 1/12/21

Related info for your journey

Useful info, stats and facts about Ontario to Colorado flights.

Which airlines flying from Ontario to Colorado have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Ontario to Colorado that may be offering flexible cancellation policies are Air Canada, United Airlines, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Region of Ontario to Colorado for under C$ 300 on Cheapflights?

Yes, there are multiple flights from Region of Ontario to Colorado for under C$ 300. The cheapest flight booked recently is on Flair Airlines for just C$ 203, but on average you can expect to pay C$ 363.

Are there direct flights from Region of Ontario to Colorado for under C$ 300 on Cheapflights?

Cheapflights has 20 direct flights from Region of Ontario to Colorado under C$ 300. A good price for a direct flight from Region of Ontario to Colorado is less than C$ 466.

Are there last-minute flights available from Region of Ontario to Colorado for under C$ 500?

There are currently 20+ open flights from Region of Ontario to Colorado within the next 7 days for less than C$ 500.

What are the cheapest airlines to fly from Region of Ontario to Colorado one-way?

The cheapest airlines for a one-way flight from Region of Ontario to Colorado are Flair Airlines (C$ 139), Air Canada (C$ 207), and Austrian Airlines (C$ 241).

Can I fly to Colorado from Ontario right now?

Information is based on travel restrictions from Ontario to Colorado

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Colorado.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Colorado.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Colorado.

Can I fly back to Ontario from Colorado?

Returning to Ontario from Colorado

COVID-19 testing requirements
Visitors from Colorado must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from Colorado are not required to quarantine after entering Ontario.

Destination points for flights from Ontario to Colorado

Select to see more specific information for flights from Ontario to all places in Colorado

Top 5 airlines flying from Ontario to Colorado

The chart below displays the airlines Cheapflights users travelling from Ontario to Colorado choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
American Airlines
CheapestC$ 124
AverageC$ 527
FlexibilityNo cancel fee
On-time71%
COVID-19 safety
WestJet
CheapestC$ 125
AverageC$ 415
FlexibilityNo cancel fee
On-time60%
COVID-19 safety
Delta
CheapestC$ 170
AverageC$ 549
FlexibilityNo cancel fee
On-timeN/A
COVID-19 safety
United Airlines
CheapestC$ 268
AverageC$ 693
FlexibilityNo cancel fee
On-time69%
COVID-19 safety
Air Canada
CheapestC$ 293
AverageC$ 690
FlexibilityNo cancel fee
On-time67%
COVID-19 safety

Hourly flight availability from Ontario to Colorado

See what time of day planes typically take off from Ontario to Colorado
1%of flight departuresEarly morningMidnight to 6 am
53%of flight departuresMorning6 am to noon
46%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM