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10 Best casement window air conditioners of 2026

Save up to 17% off
  • Best Choice

    1

    Perfect Aire 10,000 BTU Casement Window Air Conditioner– Cools 450 Sq. Ft. – Remote with Follow Me, Digital LED Display, Timer, R32 Refrigerant, Sliding/Crank-Out Window H: 23.5” x W: 14.75” x D: 21”
    PerfectAire

    Perfect Aire 10,000 BTU Casement Window Air Conditioner– Cools 450 Sq. Ft. – Remote with Follow Me, Digital LED Display, Timer, R32 Refrigerant, Sliding/Crank-Out Window H: 23.5” x W: 14.75” x D: 21”

    9.8
    Exceptional
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  • Value for Money

    2

    FHSC102WB1
    Frigidaire

    FHSC102WB1

    • floor area:450 Square Feet
    • installation:Window Kit
    • noise:56 dB
    • special features:Multi-Speed Fan
    • voltage:115 Volts AC
    9.7
    Exceptional
    Our Rating

  • 3

    Keystone 10,000 BTU Slider Window Air Conditioner and Dehumidifier, 115V Air Conditioner Window Unit for Bedroom, Living Room, and Small-Medium Sized Rooms up to 450 Sq.Ft, 4-Way Air Direction Control
    Keystone

    Keystone 10,000 BTU Slider Window Air Conditioner and Dehumidifier, 115V Air Conditioner Window Unit for Bedroom, Living Room, and Small-Medium Sized Rooms up to 450 Sq.Ft, 4-Way Air Direction Control

    13% Off
    9.6
    Exceptional

  • 4

    IKSTAR 300CM Portable AC Window Seal Kit for Casement, Crank & Skylight Windows – Universal No-Drill Waterproof Vent Kit with Flexible Zipper for Single & Dual Hose Air Conditioners
    IKSTAR

    IKSTAR 300CM Portable AC Window Seal Kit for Casement, Crank & Skylight Windows – Universal No-Drill Waterproof Vent Kit with Flexible Zipper for Single & Dual Hose Air Conditioners

    9.5
    Excellent

  • 5

    IKSTAR 300CM Portable AC Window Seal Kit for Casement, Crank & Skylight Windows – Universal No-Drill Waterproof Vent Kit with Flexible Zipper for Single & Dual Hose Air Conditioners
    IKSTAR

    IKSTAR 300CM Portable AC Window Seal Kit for Casement, Crank & Skylight Windows – Universal No-Drill Waterproof Vent Kit with Flexible Zipper for Single & Dual Hose Air Conditioners

    9.4
    Excellent
  • See Today’s Deals & Prices

  • 6

    Keystone 8,000 BTU Slider Window Air Conditioner and Dehumidifier, 115V Air Conditioner Window Unit for Bedroom, Living Room, and Small-Medium Sized Rooms up to 350 Sq.Ft., 4-Way Air Direction Control
    Keystone

    Keystone 8,000 BTU Slider Window Air Conditioner and Dehumidifier, 115V Air Conditioner Window Unit for Bedroom, Living Room, and Small-Medium Sized Rooms up to 350 Sq.Ft., 4-Way Air Direction Control

    17% Off
    9.3
    Excellent
    Our Rating

  • 7

    FSEN Portable AC Window Seal Kit - Heavy-Duty Window Barrier with Adjustable Hole, No-Drill Waterproof & Universal Fit for Sliding/Crank-Out/Skylight Windows. Blocks Heat, Dust & Saves Energy!
    FSEN

    FSEN Portable AC Window Seal Kit - Heavy-Duty Window Barrier with Adjustable Hole, No-Drill Waterproof & Universal Fit for Sliding/Crank-Out/Skylight Windows. Blocks Heat, Dust & Saves Energy!

    9.2
    Excellent

  • 8

    Loviga 400CM(157") Portable AC Window Seal, Casement Window Vent Kit Seal Kit for Portable Air Conditioner Dryer, 100% Sealing Waterproof Easy to Install for Crank Out/Awning/Skylights Window
    Loviga

    Loviga 400CM(157") Portable AC Window Seal, Casement Window Vent Kit Seal Kit for Portable Air Conditioner Dryer, 100% Sealing Waterproof Easy to Install for Crank Out/Awning/Skylights Window

    9.1
    Excellent

  • 9

    Loviga 400CM(157") Portable AC Window Seal, Casement Window Vent Kit Seal Kit for Portable Air Conditioner Dryer, 100% Sealing Waterproof Easy to Install for Crank Out/Awning/Skylights Window
    Loviga

    Loviga 400CM(157") Portable AC Window Seal, Casement Window Vent Kit Seal Kit for Portable Air Conditioner Dryer, 100% Sealing Waterproof Easy to Install for Crank Out/Awning/Skylights Window

    9.0
    Excellent

  • 10

    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
    8.9
    Very Good