Find flights
When to book
FAQs & Tips
Reviews
Deals

DEN

Find cheap United Airlines flights to Denver from C$ 238

1 adult
0 bags
Sat 29/6
Sat 6/7

Search hundreds of travel sites at once for deals on United Airlines flights to Denver

In the last 7 days, travellers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Good to know

Low season

January

High season

June

Cheapest flight

C$ 238

Average price round-trip

C$ 698
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Calgary to Denver
(price for this month)

When to book flights with United Airlines to Denver

Average price per month
Flight prices as travel date approaches

FAQs for flying to Denver with United Airlines

  • Which other airlines fly to Denver?

    Along with United Airlines, you can also fly to Denver with Air Canada and Air Canada.

  • Which airport do United Airlines flights to Denver fly into?

    You’ll fly into Denver Airport when flying to Denver with United Airlines.

  • Are there any other airlines in Star Alliance that fly to Denver?

    If you want to fly with an airline in Star Alliance, Air Canada and Air Canada also fly to Denver.

United Airlines customer reviews

7.4
GoodBased on 10,777 verified guest reviews
6.7Food
7.2Comfort
8.1Crew
7.7Boarding
7.1Entertainment

Traveler rating:
Sort by:
R
6.8 Okay
Pros:The crew was excellent - courteous/aware/friendly. The flight, although 2 hours delayed (9;20pm scheduled departure) was pleasant and smooth. Also, the de-boarding process was surprisingly quick.
Cons:A 2 hour delay at 9:20pm at night is unfortunate yet frustrating experience, especially when we moved our flight up due to a travel warning for EWR (ironically enough, our originally scheduled flight (1922 MCO-EWR). I'm giving an overall OK (instead of good) due to the fact that there were no snacks (although I did not want anything, it didn't go unnoticed) and although there was free inflight entertainment for personal devices, I feel the passengers should have been given free internet access - in my opinion, it would have been the appropriate thing to do. In any case, this experience doesn't change my positive opinion of United.
A
4.6 Mediocre
Cons:The first contact in the airport was quite rude when informing me that I had to measure my suitcase for size. I have carried this suitcase on on every airline for over 10 years....the size got smaller and United got $25.00....not happy. There was NO free movies, no access to TV, flight pattern....nothing and it could not be turned off. ONE cookie for a coast-to-coast flight. What happened to United?
A
10.0 Wonderful
On time departure and arrival.
A
10.0 Wonderful
Pros:Nice smooth flight
Cons:Everything
B
5.6 Fair
Cons:More water, drinks. The food was absolutely horrible.
A
7.3 Good
Pros:Amazing crew
Cons:Tight seats, no access to actual WiFi unless you purchase a yearly or monthly plan
S
4.6 Mediocre
Pros:Ordered the Protein Box, it was ok.. crew members nice.
Cons:The Smell on the flight was unacceptable, I was sitting about a couple rows across the middle bathroom, and it smelled horrible, I had never had an experience like this on any other flight, I fly United many times a year, and this had me really uncomfortable for almost 5 hours, since the flight was delayed almost 1.5 hours while we sat onboard the aircraft at the gate, that had me miss dinner plans too in San Francisco as well. I really hope they can fix that, For the good of the passengers, felt like I was going to be nauseous all the time, and I'm really not someone that complains or takes time to review badly.
N
4.6 Mediocre
Cons:2.5 hour delay. No working bathrooms. Couldn't hear the tv and headphones that they gave out were useless.
A
2.0 Poor
Cons:Purchased tickets 4 months before this flight for a departure time of 6:05pm. Tried to check in and check baggage at 9:30am but was turned away saying I could only check in 3 hrs prior to my flight. Came back at 3:00pm to check-in and they could not find my information. An hour later they find out that they cancelled the flight and moved my departure time to 8:25am for that day. They say they emailed 3 times in May but I never got it (I'm a bit crazy about my email staying clean) so they say it might have went in to my spam folder due to they types of emails they send to customers. They only kept repeating that they notified me so there is nothing they could do. I ended up going to Air Canada to get a flight to PHX the next day. No apology, no help, no hotel for the night...Terrible experience by United. They gave me a customer relations group contact information to follow up with for complaint but since they sent me the 3 emails in May about the change, they have no liability to fix the situation.
A
2.0 Poor
Cons:Departure was delayed. No explanation. The boarding area is crowded and confusing. The plane's bins were too small for roller boards so passengers had to carry bags outdoors in snow and terrible wind, to get them loaded. The Newark airport where the plane landed was miserable! Departure from Newark was worse than landing if that could be possible! Awful!

Book Cheap flights with United Airlines to Denver

Recent round-trip flight deals

14/6Fri
directUnited Airlines
2h 49mYEG-DEN
16/6Sun
directUnited Airlines
2h 45mDEN-YEG
C$ 290
25/7Thu
directUnited Airlines
2h 49mYEG-DEN
28/7Sun
directUnited Airlines
2h 45mDEN-YEG
C$ 300
1/8Thu
directUnited Airlines
2h 49mYEG-DEN
4/8Sun
directUnited Airlines
2h 45mDEN-YEG
C$ 301
10/7Wed
directUnited Airlines
2h 40mYYC-DEN
13/7Sat
directUnited Airlines
2h 28mDEN-YYC
C$ 434
26/7Fri
directUnited Airlines
2h 28mYYC-DEN
29/7Mon
directUnited Airlines
2h 28mDEN-YYC
C$ 457
20/6Thu
directUnited Airlines
2h 28mYYC-DEN
25/6Tue
directUnited Airlines
2h 28mDEN-YYC
C$ 462
24/6Mon
directUnited Airlines
2h 28mYYC-DEN
29/6Sat
directUnited Airlines
2h 28mDEN-YYC
C$ 479
6/7Sat
directUnited Airlines
3h 41mYYZ-DEN
16/7Tue
directUnited Airlines
3h 16mDEN-YYZ
C$ 547
6/7Sat
directUnited Airlines
3h 41mYYZ-DEN
16/7Tue
1 stopUnited Airlines
6h 42mDEN-YYZ
C$ 561
19/8Mon
directUnited Airlines
3h 45mYYZ-DEN
23/8Fri
1 stopUnited Airlines
14h 31mDEN-YYZ
C$ 562
6/7Sat
directUnited Airlines
3h 41mYYZ-DEN
13/7Sat
directUnited Airlines
3h 08mDEN-YYZ
C$ 565
1/7Mon
directUnited Airlines
3h 42mYYZ-DEN
8/7Mon
directUnited Airlines
3h 16mDEN-YYZ
C$ 566
20/7Sat
directUnited Airlines
3h 42mYYZ-DEN
17/8Sat
directUnited Airlines
3h 16mDEN-YYZ
C$ 568
1/7Mon
directUnited Airlines
3h 42mYYZ-DEN
8/7Mon
directUnited Airlines
3h 08mDEN-YYZ
C$ 569
12/8Mon
1 stopUnited Airlines
10h 15mYYZ-DEN
19/8Mon
directUnited Airlines
3h 14mDEN-YYZ
C$ 571
3/7Wed
directUnited Airlines
4h 17mYUL-DEN
5/7Fri
1 stopUnited Airlines
10h 23mDEN-YUL
C$ 573
26/8Mon
2 stopsUnited Airlines
15h 23mYOW-DEN
29/8Thu
1 stopUnited Airlines
12h 03mDEN-YOW
C$ 573
9/7Tue
1 stopUnited Airlines
6h 45mYYZ-DEN
15/7Mon
1 stopUnited Airlines
13h 02mDEN-YYZ
C$ 573
1/7Mon
1 stopUnited Airlines
5h 30mYYZ-DEN
8/7Mon
directUnited Airlines
3h 16mDEN-YYZ
C$ 575
1/7Mon
1 stopUnited Airlines
7h 22mYYZ-DEN
8/7Mon
directUnited Airlines
3h 08mDEN-YYZ
C$ 576

Search by stops

Search by price

Recent one-way flight deals

1/9Sun
directUnited Airlines
2h 31mYYC-DEN
C$ 238
1/7Mon
directUnited Airlines
2h 28mYYC-DEN
C$ 250
6/7Sat
directUnited Airlines
2h 28mYYC-DEN
C$ 263
3/10Thu
directUnited Airlines
2h 31mYYC-DEN
C$ 294
4/7Thu
directUnited Airlines
3h 42mYYZ-DEN
C$ 308
3/7Wed
directUnited Airlines
3h 42mYYZ-DEN
C$ 316
3/7Wed
directUnited Airlines
3h 41mYYZ-DEN
C$ 317
3/7Wed
1 stopUnited Airlines
8h 20mYYZ-DEN
C$ 324
3/7Wed
1 stopUnited Airlines
8h 57mYYZ-DEN
C$ 326
27/6Thu
directUnited Airlines
4h 17mYUL-DEN
C$ 328
1/7Mon
1 stopUnited Airlines
6h 31mYYZ-DEN
C$ 330
12/7Fri
1 stopUnited Airlines
17h 36mYUL-DEN
C$ 335
6/11Wed
2 stopsUnited Airlines
15h 24mYVR-DEN
C$ 338
8/9Sun
directUnited Airlines
2h 37mYWG-DEN
C$ 343
8/9Sun
directUnited Airlines
2h 37mYWG-DEN
C$ 345
30/9Mon
directUnited Airlines
2h 31mYYC-DEN
C$ 346
21/9Sat
directUnited Airlines
2h 50mYEG-DEN
C$ 361
21/9Sat
2 stopsUnited Airlines
15h 15mYYC-DEN
C$ 391
29/9Sun
1 stopUnited Airlines
16h 14mYUL-DEN
C$ 405
24/6Mon
directUnited Airlines
3h 42mYYZ-DEN
C$ 465

Search by stops

Search by price

Flights to Denver - United Airlines

Destination:

Denver Intl (DEN)United States

Return flight deals:

Denver Intl - Canada

Cabin classes:

C$ 881
C$ 910
C$ 1,438
C$ 304

Browse origins: