Cheap Flights from Toronto, ON to Denver, CO from $143

Return flight: Denver – Toronto

On Cheapflightsplus.com you will find 8 direct and 451 connecting flights from Toronto to Denver. You can compare airfare deals from 10 airlines and multiple travel sites from $143, book and save on cheap plane tickets and last minute offers. Also check out YTO-DEN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Toronto to Denver Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $143 (one-way), $245 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Toronto to Denver. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
08:40 — 10:14
08:40 — 10:14 UA8651 United Airlines
Toronto — Denver
3h 34m
Find flight
from$189
08:40 — 10:20
08:40 — 10:20 AC1039 Air Canada
Toronto — Denver
3h 40m
Find flight
from$207
09:44 — 11:28
09:44 — 11:28 AC4902 Air Canada
Toronto — Denver
3h 44m
Find flight
from$197
09:44 — 11:26
09:44 — 11:26 UA1268 United Airlines
Toronto — Denver
3h 42m
Find flight
from$240
16:18 — 18:02
16:18 — 18:02 AC4888 Air Canada
Toronto — Denver
3h 44m
Find flight
from$209
16:18 — 18:01
16:18 — 18:01 UA568 United Airlines
Toronto — Denver
3h 43m
Find flight
from$240
18:20 — 19:54
18:20 — 19:54 UA8163 United Airlines
Toronto — Denver
3h 34m
Find flight
from$201
18:20 — 20:00
18:20 — 20:00 AC1041 Air Canada
Toronto — Denver
3h 40m
Find flight
from$299
07:55 — 14:19
11:10 — 12:00 PD2387 Porter Airlines
Toronto — Chicago
3h 50m stop
07:15 — 09:05 F92209 Frontier Airlines
Chicago — Denver
8h 24m
including layover
Find flight
from$147
07:55 — 07:30
+1 day
07:55 — 08:45 PD2387 Porter Airlines
Toronto — Chicago
20h 55m stop
05:40 — 07:32 F91483 Frontier Airlines
Chicago — Denver
25h 35m
including layover
Find flight
from$150
08:45 — 01:15
+1 day
08:45 — 10:15 PD2123 Porter Airlines
Toronto — New York
12h 40m stop
22:59 — 01:21 F93161 Frontier Airlines
New York — Denver
18h 30m
including layover
Find flight
from$159
08:45 — 20:04
08:45 — 10:16 PD2719 Porter Airlines
Toronto — Washington D.C.
7h 44m stop
18:00 — 20:08 F9689 Frontier Airlines
Washington D.C. — Denver
13h 19m
including layover
Find flight
from$171
10:00 — 11:27
+1 day
10:00 — 12:20 WS655 WestJet
Toronto — Calgary
20h 35m stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
27h 27m
including layover
Find flight
from$158
10:20 — 11:24
+1 day
10:20 — 12:35 F8625 Freedom Airlines
Toronto — Calgary
20h 20m stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
27h 4m
including layover
Find flight
from$175
11:40 — 16:59
11:40 — 12:53 SY1918 Sun Country Airlines
Toronto — Minneapolis
2h 55m stop
15:48 — 16:59 SY655 Sun Country Airlines
Minneapolis — Denver
7h 19m
including layover
Find flight
from$173
13:25 — 20:04
13:25 — 14:56 PD2725 Porter Airlines
Toronto — Washington D.C.
3h 4m stop
18:00 — 20:05 F9689 Frontier Airlines
Washington D.C. — Denver
8h 39m
including layover
Find flight
from$163
13:30 — 11:24
+1 day
13:30 — 15:48 WS661 WestJet
Toronto — Calgary
17h 5m stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
23h 54m
including layover
Find flight
from$166
15:35 — 14:19
+1 day
16:05 — 16:54 PD2393 Porter Airlines
Toronto — Chicago
20h 11m stop
14:44 — 16:33 F92209 Frontier Airlines
Chicago — Denver
24h 44m
including layover
Find flight
from$143
16:00 — 09:03
+1 day
16:00 — 17:15 WS1428 WestJet
Toronto — Nashville
13h 45m stop
07:00 — 09:03 F91783 Frontier Airlines
Nashville — Denver
19h 3m
including layover
Find flight
from$148
16:00 — 21:28
16:00 — 17:15 WS1428 WestJet
Toronto — Nashville
2h 8m stop
19:18 — 21:29 F91401 Frontier Airlines
Nashville — Denver
7h 28m
including layover
Find flight
from$163
17:00 — 11:27
+1 day
17:00 — 19:20 WS669 WestJet
Toronto — Calgary
13h 35m stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
20h 27m
including layover
Find flight
from$150
17:00 — 18:52
+1 day
17:00 — 19:20 WS669 WestJet
Toronto — Calgary
21h stop
16:20 — 18:52 WS1568 WestJet
Calgary — Denver
27h 52m
including layover
Find flight
from$158
18:30 — 11:24
+1 day
18:30 — 20:49 WS671 WestJet
Toronto — Calgary
12h 3m stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
18h 54m
including layover
Find flight
from$150
20:00 — 11:24
+1 day
20:00 — 22:20 WS675 WestJet
Toronto — Calgary
10h 33m stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
17h 24m
including layover
Find flight
from$166
20:05 — 04:00
+1 day
19:25 — 21:28 PD655 Porter Airlines
Toronto — Las Vegas
3h 4m stop
06:30 — 09:38 F91994 Frontier Airlines
Las Vegas — Denver
9h 55m
including layover
Find flight
from$150
21:40 — 11:24
+1 day
21:40 — 23:55 F8629 Freedom Airlines
Toronto — Calgary
9h stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
15h 44m
including layover
Find flight
from$175
06:30 — 17:54
+1 day
06:30 — 09:50 F81600 Freedom Airlines
Toronto — Miami
10h 15m stop
20:05 — 22:06 G4261 Allegiant Air
Miami — Fletcher
18h 33m stop
16:39 — 17:54 G4227 Allegiant Air
Fletcher — Denver
37h 24m
including layover
Find flight
from$180
06:45 — 18:52
06:45 — 09:02 WS419 WestJet
Toronto — Edmonton
2h 58m stop
12:00 — 13:00 WS3348 WestJet
Edmonton — Calgary
3h 22m stop
16:20 — 18:52 WS1568 WestJet
Calgary — Denver
14h 7m
including layover
Find flight
from$147
09:00 — 18:52
09:00 — 11:17 WS421 WestJet
Toronto — Edmonton
43m stop
12:00 — 13:00 WS3348 WestJet
Edmonton — Calgary
3h 22m stop
16:20 — 18:52 WS1568 WestJet
Calgary — Denver
11h 52m
including layover
Find flight
from$147
09:50 — 01:15
+1 day
09:50 — 10:48 PD2219 Porter Airlines
Toronto — Ottawa
1h 12m stop
12:00 — 13:30 PD2335 Porter Airlines
Ottawa — New York
9h 25m stop
22:59 — 01:21 F93161 Frontier Airlines
New York — Denver
17h 25m
including layover
Find flight
from$164
12:00 — 09:51
+1 day
12:00 — 14:14 WS711 WestJet
Toronto — Vancouver
3h 11m stop
17:25 — 20:23 WS1698 WestJet
Vancouver — Los Angeles
9h 52m stop
06:15 — 09:51 F93156 Frontier Airlines
Los Angeles — Denver
23h 51m
including layover
Find flight
from$144
12:00 — 04:00
+1 day
12:00 — 14:14 WS711 WestJet
Toronto — Vancouver
3h 21m stop
17:35 — 20:21 WS1794 WestJet
Vancouver — Las Vegas
4h 38m stop
00:59 — 04:00 F91994 Frontier Airlines
Las Vegas — Denver
18h
including layover
Find flight
from$165
14:00 — 09:51
+1 day
14:00 — 16:14 WS715 WestJet
Toronto — Vancouver
1h 11m stop
17:25 — 20:23 WS1698 WestJet
Vancouver — Los Angeles
9h 52m stop
06:15 — 09:51 F93156 Frontier Airlines
Los Angeles — Denver
21h 51m
including layover
Find flight
from$144
14:00 — 04:00
+1 day
14:00 — 16:14 WS715 WestJet
Toronto — Vancouver
1h 21m stop
17:35 — 20:21 WS1794 WestJet
Vancouver — Las Vegas
4h 38m stop
00:59 — 04:00 F91994 Frontier Airlines
Las Vegas — Denver
16h
including layover
Find flight
from$166
15:00 — 09:51
+1 day
15:00 — 17:20 WS663 WestJet
Toronto — Calgary
2h 5m stop
19:25 — 21:47 WS1512 WestJet
Calgary — Los Angeles
8h 28m stop
06:15 — 09:51 F93156 Frontier Airlines
Los Angeles — Denver
20h 51m
including layover
Find flight
from$144
19:00 — 11:24
+1 day
19:00 — 21:18 WS437 WestJet
Toronto — Edmonton
8h 40m stop
06:00 — 06:56 WS238 WestJet
Edmonton — Calgary
1h 58m stop
08:55 — 11:27 WS1570 WestJet
Calgary — Denver
18h 24m
including layover
Find flight
from$169
22:20 — 09:51
+2 days
22:20 — 00:38 WS445 WestJet
Toronto — Edmonton
7h 22m stop
08:00 — 10:36 WS1422 WestJet
Edmonton — Los Angeles
19h 39m stop
06:15 — 09:51 F93156 Frontier Airlines
Los Angeles — Denver
37h 31m
including layover
Find flight
from$175
22:25 — 09:51
+2 days
22:25 — 00:44 WS679 WestJet
Toronto — Calgary
18h 41m stop
19:25 — 21:47 WS1512 WestJet
Calgary — Los Angeles
8h 28m stop
06:15 — 09:51 F93156 Frontier Airlines
Los Angeles — Denver
37h 26m
including layover
Find flight
from$174
*Departure and arrival times - local. Updated on July 2, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Toronto to Denver depends on and how to choose the most interesting flight option for you.

Distance between Toronto and Denver is 2131 miles. Time difference between the cities is 2h. Airplanes depart 00:30 to 23:50 from 3 Toronto airports and arrive 00:30 to 23:50 to 2 Denver airports. Average flight time is 3h 41m.

  • The fastest flight 3h 34m
  • Average flight time 3h 41m
  • The earliest flight 00:30
  • The latest flight 23:50
  • Distance 1325 ml

The cheapest months to travel to Denver are june (from 190 $), august (from 191 $), july (from 200 $).

The most expensive months are january (from 426 $), october (from 257 $), november (from 253 $).

What is the lowest airfare Toronto to Denver?

The cheapest plane ticket found by our users is $143. This airfare is for economy class on one-way PD2393 flight by Porter Airlines for August 7, 2025 which leaves Toronto Island in Toronto at 15:35 am and arrives at Denver Denver International at 14:19.

Economy class
$143
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Toronto — Denver is served by 10 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Air Canada - 49 departures per week at the price of from $ 197 . And the most expensive tickets are offered by Austrian Airlines airline - from $ 3125.

Direct flights

There are 8 nonstop flights on the route. The fastest direct flight is UA8651 by United Airlines takes 3h 34m and the cheapest is PD2393 by Porter Airlines for $189.

  • AC - Air Canada
    from $197
    Find
  • UA - United Airlines
    from $189
    Find
See more direct flights

Connecting Flights

There are 451 flights with layovers on the route. The fastest connecting flight is UA8165 by United Airlines takes 5h 28m and the cheapest is PD2393 by Porter Airlines for $143.

  • F8 - Freedom Airlines
    from $175
    Find
  • AC - Air Canada
    from $200
    Find
  • AS - Alaska Airlines
    from $245
    Find
  • PD - Porter Airlines
    from $143
    Find
  • OS - Austrian Airlines
    from $2078
    Find
  • AV - Avianca
    from $458
    Find
  • SY - Sun Country Airlines
    from $173
    Find
  • WS - WestJet
    from $144
    Find
  • UA - United Airlines
    from $191
    Find
  • TS - Air Transat
    from $205
    Find
See more connecting flights

Airports

You can fly from Toronto to Denver from 3 airports (Buttonville Municipal, Toronto Island, Pearson International).

Toronto airports

  • Buttonville Municipal-YKZ
    Find
  • Toronto Island-YTZ
    from $143
    Find
  • Pearson International-YYZ
    from $144
    Find

Denver airports

  • Denver International-DEN
    Find
  • Arapahoe Co-APA
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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