The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Denver International ⇄ Mahlon Sweet Field DEN–EUG

Airlines flew 2,522 flights between Denver International DEN in Denver, CO and Mahlon Sweet Field EUG in Eugene, OR in the twelve months to July 2026, both directions together: 320,836 passengers in 389,876 seats, 82% of them filled, and 1,553 pounds of freight. 996 miles, about 139 minutes in the air, on 3 airlines: United Air Lines Inc. (1,441), Southwest Airlines Co. (904), SkyWest Airlines Inc. (177). Planning to fly it yourself? The weather and winds along this route right now.

2,522
flights, twelve months
DEN-EUG: 1,270 · EUG-DEN: 1,252
320,836
passengers
82% of seats filled
996
miles
about 139 minutes airborne
3
airlines
9 aircraft types

Flights by month both directions

0631261892521/254/257/2510/251/264/262447/26
By month, as a table
flights
1/25124
2/25112
3/25124
4/25120
5/25183
6/25238
7/25252
8/25236
9/25230
10/25235
11/25171
12/25181
1/26145
2/26148
3/26227
4/26232
5/26235
6/26238
7/26244

Passengers by month

08,32216,64524,96833,2901/254/257/2510/251/264/2632,9367/26
By month, as a table
passengers
1/2515,586
2/2514,176
3/2515,915
4/2516,930
5/2520,842
6/2528,959
7/2531,131
8/2529,174
9/2527,863
10/2527,544
11/2524,110
12/2523,763
1/2617,283
2/2617,566
3/2627,646
4/2629,043
5/2630,618
6/2633,290
7/2632,936

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA1,441199,59785%scheduled passenger service
Southwest Airlines Co. WN904110,93078%scheduled passenger service
SkyWest Airlines Inc. OO17710,30981%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-800971168132,744
Boeing 737-700/700LR/Max 743013950,737
Airbus Industrie A320-100/20035115046,493
Boeing B737 Max 80028817438,268
Embraer ERJ-1751727210,309
Boeing 737-900ER12717918,176
Boeing B737 Max 90011717917,469
Airbus Industrie A319611266,640
Canadair RJ-200ER /RJ-4405500

DEN → EUG this direction alone · flown January 2025 to July 2026

1,270 flights of 1,273 scheduled, 162,001 passengers in 199,265 seats, 1,439 pounds of freight. United Air Lines Inc. 727; Southwest Airlines Co. 453; SkyWest Airlines Inc. 90.

EUG → DEN this direction alone · flown January 2025 to July 2026

1,252 flights of 1,269 scheduled, 158,835 passengers in 190,611 seats, 114 pounds of freight. United Air Lines Inc. 714; Southwest Airlines Co. 451; SkyWest Airlines Inc. 87.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Denver International DEN and Mahlon Sweet Field EUG; all routes.