Denver (DEN) to Portland (PDX) flights

United Airlines, Southwest Airlines, Alaska Airlines, Frontier Airlines fly nonstop from Denver International Airport to Portland International Airport, with about 103 flights a week in July 2026. The 991-mile flight takes about 2h 42m gate to gate.

From

DEN

Denver

Denver International Airport

PDX

Portland

Portland International Airport

Distance: 991 mi · 1,595 km
Flight time: 2h 42m
Airlines: 4
Seats filled: 87%

Flights a week, July 2026

4,285 flights and 657,635 passengers in 12 months

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

Airlines flying DEN to PDX

Airline	Flights a week	Aircraft	Passengers (12 months)	Flight time
United Airlines	40	Boeing 737-800, Boeing 737-900ER, Airbus A321	280,928	2h 43m
Southwest Airlines	36	Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7	236,946	2h 39m
Alaska Airlines	20	Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800	88,743	2h 46m
Frontier Airlines	7	Airbus A321, Airbus A320neo, Airbus A320-100/200	50,166	2h 44m
SkyWest AirlinesSeasonal or ended	n/a	Embraer E175	852	3h 6m

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

DEN to PDX flight schedule

21 flight numbers flew this route in August 2026, 10 of them almost daily. The first usually leaves at 7:50am and the last at 10:00pm. 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)
UA 1247United Airlines	7:50am	9:32am	31	88%
AS 1626Alaska Airlines	8:00am	9:46am	18	87%
AS 465Alaska Airlines	8:08am	9:50am	13	100%
WN 449Southwest Airlines	9:20am	10:55am	4	n/a
WN 874Southwest Airlines	9:20am	10:55am	28	68%
WN 1161Southwest Airlines	10:25am	12:05pm	24	67%
UA 644United Airlines	11:30am	1:14pm	31	84%
AS 684Alaska Airlines	12:02pm	1:46pm	28	88%
WN 1603Southwest Airlines	12:25pm	2:00pm	8	n/a
UA 2455United Airlines	1:25pm	3:05pm	31	88%
WN 1601Southwest Airlines	3:00pm	4:35pm	24	71%
F9 2553Frontier Airlines	3:28pm	5:11pm	31	86%
UA 1337United Airlines	4:05pm	5:50pm	31	83%
WN 3142Southwest Airlines	4:30pm	6:05pm	4	n/a
AS 1807Alaska Airlines	7:05pm	8:50pm	18	52%
AS 679Alaska Airlines	7:08pm	8:50pm	8	74%
UA 498United Airlines	7:20pm	9:05pm	31	77%
WN 1534Southwest Airlines	7:35pm	9:15pm	12	0%
WN 1615Southwest Airlines	8:40pm	10:15pm	12	18%
UA 1770United Airlines	9:10pm	10:54pm	19	67%
WN 1303Southwest Airlines	10:00pm	11:40pm	12	36%

Is DEN to PDX on time?

From September 2025 to August 2026, 75% of 4,280 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 8am were the most punctual (86%), those around 8pm the least (52%). Most delay time was caused by late-arriving aircraft (53%).

Airline	Flights	On time	Average delay	Cancelled
United Airlines	1,822	82%	11 min	0.4%
Southwest Airlines	1,547	62%	21 min	0.3%
Alaska Airlines	656	80%	13 min	0.3%
Frontier Airlines	255	85%	10 min	0.4%

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
7am to 8am	309	84%
8am to 9am	515	86%
9am to 10am	144	81%
11am to 12pm	657	83%
12pm to 1pm	201	81%
1pm to 2pm	271	85%
3pm to 4pm	225	78%
4pm to 5pm	353	76%
6pm to 7pm	244	61%
7pm to 8pm	569	65%
8pm to 9pm	231	52%
9pm to 10pm	280	64%
10pm to 11pm	97	56%

Flights by month

Month	Flights	Passengers
August 2025	438	70,638
September 2025	395	61,481
October 2025	393	61,615
November 2025	340	51,118
December 2025	344	52,208
January 2026	272	37,781
February 2026	248	35,338
March 2026	297	46,108
April 2026	303	45,436
May 2026	367	57,394
June 2026	434	67,358
July 2026	456	71,439

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