Find flights
When to book
FAQs & Tips
Reviews
Deals

DEN

Find cheap United Airlines flights to Denver from C$ 181

1 adult
0 bags
Sat 8/6
Sat 15/6

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

In the last 7 days, travellers have searched 43,968,530 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$ 181

Average price round-trip

C$ 702

Good deal one-way

C$ 1,512
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly and prices are also 1% lower on average.
Flight from Calgary to Denver
(avg. price over the last 2 weeks)
or less

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 11,043 verified guest reviews
7.7Boarding
7.2Comfort
6.7Food
7.1Entertainment
8.1Crew

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

24/5Fri
directUnited Airlines
2h 39mYYC-DEN
28/5Tue
directUnited Airlines
2h 28mDEN-YYC
C$ 474
26/5Sun
directUnited Airlines
2h 39mYYC-DEN
29/5Wed
directUnited Airlines
2h 28mDEN-YYC
C$ 521
24/6Mon
directUnited Airlines
4h 17mYUL-DEN
1/7Mon
1 stopUnited Airlines
12h 30mDEN-YUL
C$ 521
10/7Wed
directUnited Airlines
4h 17mYUL-DEN
15/7Mon
1 stopUnited Airlines
12h 13mDEN-YUL
C$ 522
15/6Sat
directUnited Airlines
3h 41mYYZ-DEN
18/6Tue
directUnited Airlines
3h 08mDEN-YYZ
C$ 525
21/5Tue
1 stopUnited Airlines
7h 22mYUL-DEN
28/5Tue
1 stopUnited Airlines
7h 18mDEN-YUL
C$ 529
26/6Wed
directUnited Airlines
3h 42mYYZ-DEN
2/7Tue
1 stopUnited Airlines
12h 33mDEN-YYZ
C$ 539
3/8Sat
directUnited Airlines
3h 42mYYZ-DEN
13/8Tue
directUnited Airlines
3h 16mDEN-YYZ
C$ 544
23/5Thu
directUnited Airlines
3h 42mYYZ-DEN
29/5Wed
1 stopUnited Airlines
15h 58mDEN-YYZ
C$ 545
28/5Tue
directUnited Airlines
2h 39mYYC-DEN
30/5Thu
directUnited Airlines
2h 28mDEN-YYC
C$ 547
9/7Tue
1 stopUnited Airlines
8h 29mYYZ-DEN
15/7Mon
directUnited Airlines
3h 16mDEN-YYZ
C$ 552
3/6Mon
2 stopsUnited Airlines
13h 08mYOW-DEN
5/6Wed
1 stopUnited Airlines
13h 48mDEN-YOW
C$ 561
10/8Sat
1 stopUnited Airlines
7h 56mYQB-DEN
19/8Mon
2 stopsUnited Airlines
15h 49mDEN-YQB
C$ 561
18/7Thu
directUnited Airlines
3h 42mYYZ-DEN
26/7Fri
directUnited Airlines
3h 16mDEN-YYZ
C$ 572
7/8Wed
directUnited Airlines
3h 42mYYZ-DEN
18/8Sun
directUnited Airlines
3h 16mDEN-YYZ
C$ 585
8/6Sat
directUnited Airlines
2h 39mYYC-DEN
10/6Mon
directUnited Airlines
2h 28mDEN-YYC
C$ 588
11/6Tue
directUnited Airlines
3h 42mYYZ-DEN
13/6Thu
1 stopUnited Airlines
6h 52mDEN-YYZ
C$ 588
7/8Wed
1 stopUnited Airlines
8h 42mYYZ-DEN
18/8Sun
directUnited Airlines
3h 16mDEN-YYZ
C$ 594
19/7Fri
1 stopUnited Airlines
11h 54mYYZ-DEN
29/7Mon
1 stopUnited Airlines
6h 42mDEN-YYZ
C$ 595
23/5Thu
directUnited Airlines
3h 42mYYZ-DEN
30/5Thu
1 stopUnited Airlines
7h 43mDEN-YYZ
C$ 596

Search by stops

Search by price

Recent one-way flight deals

6/6Thu
directUnited Airlines
2h 39mYYC-DEN
C$ 181
14/5Tue
directUnited Airlines
2h 33mYYC-DEN
C$ 199
26/6Wed
directUnited Airlines
2h 28mYYC-DEN
C$ 216
14/7Sun
directUnited Airlines
2h 28mYYC-DEN
C$ 253
13/7Sat
directUnited Airlines
2h 40mYYC-DEN
C$ 284
15/6Sat
directUnited Airlines
3h 41mYYZ-DEN
C$ 297
30/10Wed
2 stopsUnited Airlines
13h 50mYUL-DEN
C$ 320
5/7Fri
1 stopUnited Airlines
7h 22mYOW-DEN
C$ 323
4/8Sun
directUnited Airlines
3h 42mYYZ-DEN
C$ 344
9/8Fri
1 stopUnited Airlines
25h 04mYYC-DEN
C$ 345
8/9Sun
directUnited Airlines
2h 37mYWG-DEN
C$ 345
13/7Sat
2 stopsUnited Airlines
16h 29mYYC-DEN
C$ 357
26/7Fri
1 stopUnited Airlines
16h 44mYVR-DEN
C$ 363
26/8Mon
2 stopsUnited Airlines
14h 56mYYC-DEN
C$ 393
27/8Tue
directUnited Airlines
4h 17mYUL-DEN
C$ 398
26/5Sun
directUnited Airlines
2h 58mYVR-DEN
C$ 401
17/8Sat
2 stopsUnited Airlines
14h 52mYYC-DEN
C$ 403
6/7Sat
directUnited Airlines
2h 58mYVR-DEN
C$ 404
25/10Fri
2 stopsUnited Airlines
13h 14mYUL-DEN
C$ 429
11/8Sun
directUnited Airlines
2h 59mYVR-DEN
C$ 510

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$ 867
C$ 947
C$ 1,250
C$ 338

Browse origins: