Denver (DEN) to New York (LGA) flights

United Airlines, Southwest Airlines, Delta Air Lines fly nonstop from Denver International Airport to LaGuardia Airport, with about 81 flights a week in July 2026. The 1,620-mile flight takes about 3h 40m gate to gate.

From

DEN

Denver

Denver International Airport

LGA

New York

LaGuardia Airport

Distance: 1,620 mi · 2,607 km
Flight time: 3h 40m
Airlines: 3
Seats filled: 87%

Flights a week, July 2026

4,482 flights and 642,529 passengers in 12 months

Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying DEN to LGA

Airline	Flights a week	Aircraft	Passengers (12 months)	Flight time
United Airlines	35	Boeing 737 MAX 8, Airbus A321, Boeing 737-800	298,388	3h 44m
Southwest Airlines	30	Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800	204,154	3h 35m
Delta Air Lines	17	Boeing 737-800, Airbus A220-300, Airbus A220-100	119,895	3h 38m
Frontier AirlinesSeasonal or ended	n/a	Airbus A320neo, Airbus A321, Airbus A320-100/200	20,092	3h 45m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

DEN to LGA flight schedule

18 flight numbers flew this route in August 2026, 12 of them almost daily. The first usually leaves at 6:05am and the last at 5:30pm. Times are local and can change; check with the airline before you book.

Flight	Departs	Arrives	Days flown in August 2026	On time (12 months)
WN 1288Southwest Airlines	6:05am	11:45am	24	78%
DL 398Delta Air Lines	7:10am	12:52pm	31	87%
UA 1442United Airlines	8:07am	1:57pm	28	89%
WN 450Southwest Airlines	9:10am	2:50pm	12	55%
UA 2446United Airlines	9:53am	3:47pm	31	83%
WN 203Southwest Airlines	11:15am	4:55pm	8	n/a
WN 3474Southwest Airlines	11:30am	5:20pm	16	50%
UA 598United Airlines	11:33am	5:26pm	26	68%
DL 751Delta Air Lines	11:40am	5:30pm	31	81%
WN 499Southwest Airlines	1:40pm	7:25pm	4	n/a
UA 1579United Airlines	2:00pm	7:54pm	31	68%
WN 4147Southwest Airlines	3:15pm	8:55pm	24	42%
UA 2168United Airlines	3:47pm	9:40pm	26	66%
WN 1539Southwest Airlines	4:55pm	10:35pm	8	n/a
WN 245Southwest Airlines	5:10pm	10:50pm	4	n/a
WN 4863Southwest Airlines	5:15pm	10:55pm	28	63%
DL 716Delta Air Lines	5:20pm	11:13pm	26	69%
UA 2033United Airlines	5:30pm	11:24pm	30	57%

Is DEN to LGA on time?

From September 2025 to August 2026, 71% of 4,664 flights arrived within 15 minutes of schedule and 2.9% were cancelled. Flights leaving around 6am were the most punctual (92%), those around 5pm the least (61%). Most delay time was caused by air traffic control and airport congestion (45%).

Airline	Flights	On time	Average delay	Cancelled
United Airlines	2,021	74%	20 min	1.8%
Southwest Airlines	1,517	63%	23 min	3.1%
Delta Air Lines	1,033	80%	18 min	4.8%
Frontier Airlines	93	66%	32 min	3.2%

Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.

On-time arrivals by departure time

Scheduled departure	Flights	On time
6am to 7am	365	92%
7am to 8am	263	85%
8am to 9am	424	87%
9am to 10am	422	77%
10am to 11am	266	71%
11am to 12pm	807	71%
12pm to 1pm	94	71%
1pm to 2pm	114	66%
2pm to 3pm	439	61%
3pm to 4pm	213	56%
4pm to 5pm	319	64%
5pm to 6pm	930	61%

Flights by month

Month	Flights	Passengers
August 2025	396	60,720
September 2025	394	58,233
October 2025	391	57,267
November 2025	351	48,489
December 2025	372	53,870
January 2026	367	47,471
February 2026	314	38,847
March 2026	378	51,179
April 2026	392	52,632
May 2026	390	56,921
June 2026	377	58,964
July 2026	360	57,936

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.