Singapore Airlines KrisFlyer miles expire after 36 months from when the miles were earned. Unfortunately, you won’t be able to extend the life of your miles – unless you pay for it.
The miles expire at the end of the 36th month, so if you earned 10,000 miles on April 1, 2023, the miles would expire on April 31, 2026.
Related Articles: Best Credit Cards for Earning Singapore Krisflyer Miles.

How to Keep Krisflyer Miles from Expiring
Before, frequent flyers were able to reset the clock of Krisflyer miles by redepositing their miles.
You book an award, change the date, cancel the flight, and then redeposit the miles of your unused tickets for a $30 fee.
Now, this method isn’t available!
The only way to extend your KrisFlyer miles before they expire is to pay a fee of $12 (or 1,200 miles) for every 10,000 miles. It’s much more expensive now.
For example, you would have to pay $60 or 6,000 miles to extend 50,000 KrisFlyer miles.
However, miles are only extended for 6 months for non-elite members and 12 months for Krisflyer Silver and Gold members.
PPS Club Members Miles Don't Expire
The one exception to KrisFlyer miles expiring is to be a member of the PPS Club.
To become a member, you need to spend at least $25,000 Singapore Dollars on business or first-class flights on Singapore or SilkAir within 12 consecutive months.
But if you fail to re-qualify for PPS Club, your miles will reset with a three-year validity period.

Comparison of Mileage Expiration Policies
Below are the mileage expiration policies for the major airline points programs worldwide.
Airline | Expiration |
---|---|
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24 months after inactivity |
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18 months after inactivity |
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24 months after inactivity |
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24 months after inactivity |
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18 months after inactivity |
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36 months |
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10 years |
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36 months after inactivity |
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Never |
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3 years |
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24 months from inactivity |
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36 months |
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36 months after inactivity |
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10 years |
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36 months |
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18 months after inactivity |
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36 months after inactivity |
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36 months |
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3 years |
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Never |
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Never |
Bottomline
Singapore Krisflyer’s fixed expiration policy is a major downside. You have to pay a fee to extend the validity of your miles. Turkish Airlines also has the same policy.
However, Krisflyer’s three-year expiration is more than enough to accumulate miles for a great award flight deal.
The program also has several transfer partners available if you really want to extend the validity of your miles.
Additionally, the fixed expiration policy encourages members to use their miles before they expire. This keeps the award seat inventory rotating and accessible to all members.