United offers Economy Plus seats with extra legroom, enhancing comfort for medium-haul flights.
United's MileagePlus program allows pooling miles, useful for family travel or upgrades.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $131 (Kiwi.com) |
One-way from | $57 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $367 |
Good round-trip deal | $215 or less |
Good one-way deal | $118 or less |
Fly from
Fly to
Route
Depart
Return
Price
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Wed 1/28
6:00 pm-8:44 pm
Nonstop4h 44m
Denver Intl
Sat 1/31
7:30 am-1:28 pm
Nonstop3h 58m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Mon 1/12
8:00 am-10:42 am
Nonstop4h 42m
Denver Intl
Thu 1/15
11:35 am-5:26 pm
Nonstop3h 51m
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Sat 1/24
8:50 am-11:47 am
Nonstop4h 57m
Denver Intl
Sat 1/31
7:30 am-1:28 pm
Nonstop3h 58m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Sat 1/24
7:55 am-10:36 am
Nonstop4h 41m
Denver Intl
Sat 1/31
11:35 am-5:26 pm
Nonstop3h 51m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Tue 1/27
8:00 am-10:57 am
Nonstop4h 57m
Denver Intl
Mon 2/2
6:40 am-12:29 pm
Nonstop3h 49m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Thu 1/8
8:00 pm-10:49 pm
Nonstop4h 49m
Denver Intl
Mon 1/12
6:40 am-12:29 pm
Nonstop3h 49m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Thu 1/29
8:00 am-10:57 am
Nonstop4h 57m
Denver Intl
Mon 2/2
6:40 am-12:29 pm
Nonstop3h 49m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Wed 1/7
8:00 am-10:57 am
Nonstop4h 57m
Denver Intl
Sat 1/17
6:41 am-12:30 pm
Nonstop3h 49m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Sun 1/18
7:55 pm-10:46 pm
Nonstop4h 51m
Denver Intl
Thu 1/22
12:07 pm-6:00 pm
Nonstop3h 53m
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Fri 1/9
8:00 am-10:42 am
Nonstop4h 42m
Denver Intl
Wed 1/14
11:35 am-5:26 pm
Nonstop3h 51m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The best time to book flights from New York to Denver is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, October is the cheapest month in which you can book a flight from New York to Denver (average of $88). Flying from New York to Denver in May is currently the most expensive (average of $143). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from New York to Denver in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.
Travelers seeking maximum savings on their New York to Denver flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from NYC to DEN are scheduled on a Monday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).
About 20% of weekly flights between New York and Denver have experienced delays in the past year, with the average delay time being 172 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$211 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$130 | Average$323 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$317 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$311 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$404 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$375 | FlexibilityNo cancel fee | On-time63% |