This article is part of a directory: Airport Of The Month: Denver International Airport
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Denver has 196 non-stop routes in the first three months of 2023, based on examining the airport's whole schedule using Cirium data. These include those served on a limited basis, such as Saturday-only links to the Caribbean. Last week I showed that Denver is the USA's third-busiest airport between January and March 2023.

Denver's top 10 routes

It is always somewhat 'tricky' looking at a hub, i.e., an airport important for transit passengers, as the simple provision of flights doesn't signify where passengers actually go. That is especially the case if they're to other hubs, compounded further by most top 10 routes involving big cities. Nonetheless, it is insightful in its own way.

The 628-mile (1,011km) link from Denver to Las Vegas has more flights than any other route, although it is neck and neck with Phoenix. Indeed, with 2,290 departing flights – a weird number to get your head around – Las Vegas is the nation's eighth most-served route by this measure. It has an average of 25 flights daily but fluctuates between 18 and 29.

Denver to...

Q1 flights (average daily)

Airline/s (by flights)

% of local passengers (Q2 22)

Find flights

Las Vegas

2,290 (25)

Southwest, United, Frontier, Spirit

61%

Click here for Denver-Las Vegas flights

Phoenix

2,286 (25)

Southwest, United, American, Frontier

60%

Click here for Denver-Phoenix flights

Salt Lake City

1,888 (21)

Southwest, United, Delta, Frontier

44%

Click here for Denver-Salt Lake City flights

Los Angeles

1,774 (19)

United, Southwest, Delta, American, Spirit

68%

Click here for Denver-Los Angeles flights

Chicago O'Hare

1,484 (16)

United, Southwest, American

62%

Click here for Denver-O'Hare flights

Minneapolis

1,452 (16)

Southwest, Delta, United, Frontier, Sun Country

68%

Click here for Denver-Minneapolis flights

Atlanta

1,400 (15)

Delta, Southwest, United, Frontier

53%

Click here for Denver-Atlanta flights

Seattle

1,394 (15)

United, Alaska, Southwest, Delta, Frontier

54%

Click here for Denver-Seattle flights

Dallas Fort Worth

1,317 (15)

American, United, Frontier

59%

Click here for Denver-Dallas flights

New York LaGuardia

1,258 (14)

United, Southwest, JetBlue, Delta

75%

Click here for Denver-LaGuardia flights

Southwest Airlines Boeing 737
Photo: Vincenzo Pace | Simple Flying

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6 in 10 Las Vegas passengers were local

While the most recent Department of Transportation data available to me is from Q2 (April-June) 2022, this is useful as it shows whether passengers are local (point-to-point, P2P), i.e., where they only traveled to/from Denver versus those who transited. Some 61% of Denver-Las Vegas passengers were local: they only flew between the two cities. Naturally, the proportion of P2P passengers varied wildly by airline: from 38% with United to 72% with ULCC Frontier.

Frontier Airlines Airbus A321-200, N702FR, in Courtney the Cougar Livery - Philadelphia, PA 2018
Photo: Catharine Pierce  | Shutterstock.

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88% of routes are domestic

Of Denver's 196 non-stop destinations in Q1 2023, 172 (88%) are domestic. The 172 involve 44 states. Naturally, California is by far the most served. Denver has an average of 110 daily flights there, or around one in eight of its total. United has more California services than any other carrier (45%), followed by Southwest (42%), Frontier (7%), Delta (3%), American (2%), and Spirit (1%). A breakdown of Denver's top five states is as follows:

Denver to...

Q1 flights (average daily)

% of Denver's total Q1 flights

Airports served in Q1

California

9,909 (110)

13%

18

Texas

6,851 (76)

9%

10

Colorado

4,754 (53)

6%

12

Florida

3,585 (40)

5%

10

Arizona

2,955 (33)

4%

3

When was the last time you flew to Denver? Let us know in the comments.

  • Denver international conspiracy theories
    Denver International Airport
    IATA/ICAO Code:
    DEN/KDEN
    Country:
    United States
    CEO:
    Phillip A. Washington
    Passenger Count :
    58,828,552 (2021)
    Runways :
    7/25 - 3,658m (12,000 ft) | 8/26 - 3,658m (12,000 ft) | 16L/34R - 3,658m (12,000 ft) | 16R/34L - 4,877m (16,000 ft) | 17L/35R - 3,658m (12,000 ft) | 17R/35L - 3,658m (12,000 ft)