Southwest® flights from Denver to New York LaGuardia from $139

Promo Code

Low fares from Denver to New York LaGuardia

$

Denver (DEN)to

New York LaGuardia (LGA)
Depart: 11/14/2026

One-way

Basic

From
$139
Seen: 23 hrs ago

Denver (DEN)to

New York LaGuardia (LGA)
Depart: 11/17/2026

One-way

Basic

From
$139
Seen: 22 hrs ago

Denver (DEN)to

New York LaGuardia (LGA)
Depart: 11/11/2026

One-way

Basic

From
$139
Seen: 19 hrs ago

Denver (DEN)to

New York LaGuardia (LGA)
Depart: 11/02/2026

One-way

Basic

From
$139
Seen: 17 hrs ago

Denver (DEN)to

New York LaGuardia (LGA)
Depart: 11/12/2026

One-way

Basic

From
$139
Seen: 11 hrs ago

Denver (DEN)to

New York LaGuardia (LGA)
Depart: 11/18/2026

One-way

Basic

From
$139
Seen: 1 hour ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Denver to New York LaGuardia

Sep 2026
From$149*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$139*
Seen: 18 hrs ago
One Way/Basic
Nov 2026
From$139*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $149
cmp-daily-histogram-bars-legend-max-price-aria-label $380
Displaying fares for September-2026
  • DEN–LGA, 09/11/2026: From $380
    11

    Fri

    SEP

  • DEN–LGA, 09/12/2026: From $354
    12

    Sat

  • DEN–LGA, 09/13/2026: From $354
    13

    Sun

  • DEN–LGA, 09/14/2026: From $354
    14

    Mon

  • DEN–LGA, 09/15/2026: From $354
    15

    Tue

  • DEN–LGA, 09/16/2026: From $280
    16

    Wed

  • DEN–LGA, 09/17/2026: From $280
    17

    Thu

  • DEN–LGA, 09/18/2026: From $280
    18

    Fri

  • DEN–LGA, 09/19/2026: From $280
    19

    Sat

  • DEN–LGA, 09/20/2026: From $329
    20

    Sun

  • DEN–LGA, 09/21/2026: From $280
    21

    Mon

  • DEN–LGA, 09/22/2026: From $280
    22

    Tue

  • DEN–LGA, 09/23/2026: From $189
    23

    Wed

  • DEN–LGA, 09/24/2026: From $189
    24

    Thu

  • DEN–LGA, 09/25/2026: From $189
    25

    Fri

  • DEN–LGA, 09/26/2026: From $189
    26

    Sat

  • DEN–LGA, 09/27/2026: From $209
    27

    Sun

  • DEN–LGA, 09/28/2026: From $204
    28

    Mon

  • DEN–LGA, 09/29/2026: From $189
    29

    Tue

  • DEN–LGA, 09/30/2026: From $149
    30

    Wed

  • DEN–LGA: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • DEN–LGA, 10/02/2026: From $186
    02

    Fri

  • DEN–LGA, 10/03/2026: From $159
    03

    Sat

  • DEN–LGA, 10/04/2026: From $199
    04

    Sun

  • DEN–LGA: cmp-view-offers-disclaimer. Find Offers
    05

    Mon

  • DEN–LGA, 10/06/2026: From $149
    06

    Tue

  • DEN–LGA, 10/07/2026: From $167
    07

    Wed

  • DEN–LGA, 10/08/2026: From $314
    08

    Thu

  • DEN–LGA, 10/09/2026: From $354
    09

    Fri

  • DEN–LGA, 10/10/2026: From $189
    10

    Sat

    • Range$149-$380

    *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:
    Denver International Airport
    Arriving at:
    La Guardia Airport
    Average flight time:
    3 hours 39 minutes
    Distance:
    1620 miles

    Route Information

    154† 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 Denver to New York (LaGuardia) is 3 hours 39 minutes.
    There are 154 weekly flights from Denver to New York (LaGuardia) on Southwest Airlines.
    Yes, Southwest flies nonstop from Denver to New York (LaGuardia) 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Denver to New York (LaGuardia) 2 times per day on Saturdays and 4 times per day on Sundays.
    To find the lowest fares by day and time to fly Denver to New York (LaGuardia) with Southwest, check out our Low Fare Calendar.
    You can rent a car at La Guardia Airport book yours with your flight.
    Yes! Flights from Denver to New York (LaGuardia)—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.

    Explore Flights from Other Popular Origins

    Popular Flights from Denver