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10 Best horizontal window air conditioners of 2025

Save up to 31% off
  • Best Choice

    1

    Perfect Aire 10,000 Slider Air Conditioner Window A/C-Casement, 10000 BTU, Gray
    PerfectAire

    Perfect Aire 10,000 Slider Air Conditioner Window A/C-Casement, 10000 BTU, Gray

    9.8
    Exceptional
    Our Rating
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  • Value for Money

    2

    Durastar DRCAC101XNA1 10,000 BTU 115V Casement Air Conditioner - White
    Durastar

    Durastar DRCAC101XNA1 10,000 BTU 115V Casement Air Conditioner - White

    • floor area:400 to 450 sq ft
    • installation:Casement windows only
    • noise:67.5 dB
    • special features:Dehumidifier, Sleep Mode
    • voltage:115 Volts
    9.7
    Exceptional

  • 3

    ZAFRO 8,000 BTU Portable Air Conditioners, 4 Modes Portable AC Unit with Fast Cooling/Energy Efficient/Remote/24Hrs Timer for Bedroom/Dorms/Indoor Rooms, White
    ZAFRO

    ZAFRO 8,000 BTU Portable Air Conditioners, 4 Modes Portable AC Unit with Fast Cooling/Energy Efficient/Remote/24Hrs Timer for Bedroom/Dorms/Indoor Rooms, White

    24% Off
    9.5
    Excellent

  • 4

    BLACK+DECKER Portable Air Conditioner, 10,000 BTU (6,300 BTU SACC) for Rooms up to 450 Sq. Ft., Portable AC with Follow Me Remote Control and Window Kit, BPACT10WT, White
    BLACK+DECKER

    BLACK+DECKER Portable Air Conditioner, 10,000 BTU (6,300 BTU SACC) for Rooms up to 450 Sq. Ft., Portable AC with Follow Me Remote Control and Window Kit, BPACT10WT, White

    15% Off
    • floor area:450 Square Feet
    • special features:Dehumidifier & fan
    • noise level:54 dB
    • voltage:115 Volts
    • cooling capacity:5800 BTU DOE
    9.3
    Excellent
    Our Rating

  • 5

    Portable Air Conditioners, 10000 BTU Air Conditioner Portable for Room up to 450 Sq. Ft., 3-in-1 Portable AC Unit with Digital Display, Remote Control, Window Installation Kit, 24H Timer, Sleep Mode
    GINOST

    Portable Air Conditioners, 10000 BTU Air Conditioner Portable for Room up to 450 Sq. Ft., 3-in-1 Portable AC Unit with Digital Display, Remote Control, Window Installation Kit, 24H Timer, Sleep Mode

    26% Off
    9.2
    Excellent
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  • 6

    8500 BTU Portable Air Conditioners with Dehumidifier & Fan - 3-in-1 Cooling Unit for Rooms up to 450 Sq.Ft, Remote Control, Sleep Mode & Easy Installation Kit, Ideal for Studios/Offices/Home Use
    Line Blaster

    8500 BTU Portable Air Conditioners with Dehumidifier & Fan - 3-in-1 Cooling Unit for Rooms up to 450 Sq.Ft, Remote Control, Sleep Mode & Easy Installation Kit, Ideal for Studios/Offices/Home Use

    31% Off
    9.0
    Excellent

  • 7

    Soleus Air Sliding Window Kit, Reinforced Aluminum Works Exclusive with the Soleus Over The Sill (Saddle) Air Conditioner (Air Conditioner Not Included)
    Soleus Air

    Soleus Air Sliding Window Kit, Reinforced Aluminum Works Exclusive with the Soleus Over The Sill (Saddle) Air Conditioner (Air Conditioner Not Included)

    8.8
    Very Good
    Our Rating

  • 8

    Amazon Basics 5000-BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Intuitive Mechanical Controls, White
    Amazon Basics

    Amazon Basics 5000-BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Intuitive Mechanical Controls, White

    31% Off
    8.7
    Very Good
    Our Rating

  • 9

    Midea MAW10V1QWT U-Shaped AC Window Air Conditioner
    Midea

    Midea MAW10V1QWT U-Shaped AC Window Air Conditioner

    23% Off
    8.5
    Good

  • 10

    Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office
    Midea

    Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office

    8.4
    Good
    Our Rating