Southwest® flights from New York (LaGuardia) to Denver from $144

Promo Code

Low fares from New York (LaGuardia) to Denver

$

New York (LaGuardia) (LGA)to

Denver (DEN)
Depart: 11/18/2026

One-way

Basic

From
$144
Seen: 13 hrs ago

New York (LaGuardia) (LGA)to

Denver (DEN)
Depart: 10/21/2026

One-way

Basic

From
$144
Seen: 14 hrs ago

New York (LaGuardia) (LGA)to

Denver (DEN)
Depart: 11/17/2026

One-way

Basic

From
$144
Seen: 16 hrs ago

New York (LaGuardia) (LGA)to

Denver (DEN)
Depart: 09/22/2026

One-way

Basic

From
$144
Seen: 5 hrs ago

New York (LaGuardia) (LGA)to

Denver (DEN)
Depart: 09/30/2026

One-way

Basic

From
$144
Seen: 1 hour ago

New York (LaGuardia) (LGA)to

Denver (DEN)
Depart: 09/23/2026

One-way

Basic

From
$144
Seen: 18 hrs ago

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Explore flights from New York (LaGuardia) to Denver

Aug 2026
From$270*
Seen: 5 hrs ago
One Way/Basic
Sep 2026
From$144*
Seen: 18 hrs ago
One Way/Basic
Oct 2026
From$144*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $144
cmp-daily-histogram-bars-legend-max-price-aria-label $370
Displaying fares for August-2026
  • LGA–DEN, 08/22/2026: From $370
    22

    Sat

    AUG

  • LGA–DEN, 08/23/2026: From $278
    23

    Sun

  • LGA–DEN, 08/24/2026: From $369
    24

    Mon

  • LGA–DEN, 08/25/2026: From $369
    25

    Tue

  • LGA–DEN, 08/26/2026: From $344
    26

    Wed

  • LGA–DEN, 08/27/2026: From $344
    27

    Thu

  • LGA–DEN, 08/28/2026: From $270
    28

    Fri

  • LGA–DEN, 08/29/2026: From $270
    29

    Sat

  • LGA–DEN, 08/30/2026: From $270
    30

    Sun

  • LGA–DEN, 08/31/2026: From $270
    31

    Mon

  • LGA–DEN, 09/01/2026: From $270
    01

    Tue

    SEP

  • LGA–DEN, 09/02/2026: From $270
    02

    Wed

  • LGA–DEN, 09/03/2026: From $270
    03

    Thu

  • LGA–DEN, 09/04/2026: From $179
    04

    Fri

  • LGA–DEN, 09/05/2026: From $174
    05

    Sat

  • LGA–DEN, 09/06/2026: From $179
    06

    Sun

  • LGA–DEN, 09/07/2026: From $269
    07

    Mon

  • LGA–DEN: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • LGA–DEN, 09/09/2026: From $179
    09

    Wed

  • LGA–DEN, 09/10/2026: From $149
    10

    Thu

  • LGA–DEN, 09/11/2026: From $166
    11

    Fri

  • LGA–DEN, 09/12/2026: From $154
    12

    Sat

  • LGA–DEN, 09/13/2026: From $229
    13

    Sun

  • LGA–DEN, 09/14/2026: From $149
    14

    Mon

  • LGA–DEN, 09/15/2026: From $144
    15

    Tue

  • LGA–DEN: cmp-view-offers-disclaimer. Find Offers
    16

    Wed

  • LGA–DEN, 09/17/2026: From $189
    17

    Thu

  • LGA–DEN, 09/18/2026: From $166
    18

    Fri

  • LGA–DEN, 09/19/2026: From $154
    19

    Sat

  • LGA–DEN, 09/20/2026: From $219
    20

    Sun

  • LGA–DEN, 09/21/2026: From $149
    21

    Mon

    • Range$144-$370

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    La Guardia Airport
    Arriving at:
    Denver International Airport
    Average flight time:
    4 hours 25 minutes
    Distance:
    1620 miles

    Route Information

    156† Weekly flights
    • 4‡ Nonstop flights per day Monday through Friday
    • 2‡ Nonstop flights on Saturday
    • 4‡ Nonstop flights on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from New York (LaGuardia) to Denver is 4 hours 25 minutes.
    There are 156 weekly flights from New York (LaGuardia) to Denver on Southwest Airlines.
    Yes, Southwest flies nonstop from New York (LaGuardia) to Denver 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from New York (LaGuardia) to Denver 2 times per day on Saturdays and 4 times per day on Sundays.
    To find the lowest fares by day and time to fly New York (LaGuardia) to Denver with Southwest, check out our Low Fare Calendar.
    You can rent a car at Denver International Airport book yours with your flight.
    Yes! Flights from New York (LaGuardia) to Denver—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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