1. 1. Copy the code

    The button copies AIR40 and opens CheapOair.com in a new tab.

  2. 2. Shop CheapOair.com

    Add what you want to your cart on cheapoair.com.

  3. 3. Paste at checkout

    Enter AIR40 in the promo code box before you pay.

Code AIR40 takes up to $40 off airline bookings at CheapOair. It sits below AIR50 in value but typically carries a lower qualifying threshold, which makes it the one that applies on shorter domestic itineraries where the higher-value codes fall out of range. Test both against your booking before paying, since only one code applies. Book through 6 September.

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