How much are Delta SkyMiles worth?
SkyMiles carry one of the lowest reference values of the eleven programmes we cover. That is not a criticism of the airline, and it does not make a redemption wrong - it means the arithmetic matters more here than in a programme where almost any redemption lands well.
1.35¢ current reference value per mile, from AwardWallet Verified Aug 2026
A low reference value changes the question
When a programme's miles tend to return a lot per mile, a mediocre redemption still lands acceptably. When they tend to return less, the difference between a good and a poor redemption is most of the value.
So the useful habit with SkyMiles is not to hunt for outliers but to check every redemption against the cash fare before booking. A balance here is worth what you get for it, and the spread is where your attention should go.
We hold a cabin-by-cabin breakdown for this programme, which the calculator above exposes under “See the range”. It is worth opening: the premium-cabin figures behave quite differently from the economy ones.
Amex is the way in
American Express Membership Rewards is the only bank currency we have verified as transferring into SkyMiles, and it moves at 1:1. That makes a SkyMiles balance unusually toppable-up if you hold Amex points - useful when an award is just out of reach.
It also means the usual warning applies with force: find the seat before you transfer. Moving Amex points into SkyMiles converts a flexible currency into one with a comparatively low reference value, and the transfer is one-way.
What not to conclude from the number
A low reference value does not mean the miles are worthless or that you should avoid earning them. If you fly Delta, you earn SkyMiles, and a redemption you actually wanted is worth more than a theoretical one in a programme you have no miles in.
What it does mean is that transferring into the programme speculatively is a poor bet, and that the cash comparison should be your default check rather than an afterthought.
A worked example
Suppose a domestic round trip is selling for $410 and the airline will also sell it for 32,000 miles plus $11.20 in fees.
($410.00 cash − $11.20 award fees) ÷ 32,000 points × 100 = 1.25 cents per point
This is roughly the shape of an ordinary domestic SkyMiles redemption. Whether it is worth doing depends on whether you would have paid the $410 - if you would not, the points are buying you a trip rather than saving you money, which is a different decision.
Against the current reference value of 1.35 cents, that is about 92% of typical — what we label around typical value. Those bands are our own editorial rules, not an industry standard.
How this programme prices awards
We have not verified this Airlines rarely state their award pricing model in writing, and we are not going to record an inference as a sourced fact. Whether Delta SkyMiles prices awards from a chart or against the cash fare is something you can test yourself: price the same route at several different cash fares and see whether the miles price moves with them. Our explainer covers what each model means for your balance.
Do these miles expire?
Delta SkyMiles do not expire. Delta can still close an account and remove its miles in defined circumstances, including fraud, a member's own request, repeated failure to respond about account status, duplicate accounts, or a breach of the program rules.
Confirmed 2026-09-02 by The Fox against SkyMiles Membership Guide & Program Rules . Expiry rules change, so check before relying on this.
Verified Sep 2026Getting miles into this programme
These are the transferable currencies we have verified as reaching Delta SkyMiles, with the date each ratio was last confirmed. Our coverage is not exhaustive — there may be routes we have not checked, and we would rather list fewer than guess at any.
| From | Ratio | Verified |
|---|---|---|
| American Express Membership Rewards | 1:1 | 2026-09-01 |
Find the seat before you transfer Transfers are one-way. Confirm the award you want is bookable in Delta SkyMiles first, then move the points, then book.
Good and poor uses
Broad principles, not promises about specific inventory. What is actually available on your dates is something only the booking programme can tell you.
Generally works well
- Redemptions you have priced against the cash fare and found to beat it.
- Topping up an existing balance from Amex at 1:1 to reach a specific award you have already found.
- Premium-cabin redemptions, where the cabin split in the range tends to be strongest.
Usually poor value
- Speculative transfers from Amex with no booking in mind.
- Any redemption booked without checking the cash fare first.
- Treating the headline average as what a given booking will return.
Questions people ask
Are SkyMiles a bad programme?
Not a question we will answer with a verdict. The reference value is among the lower ones we hold, which means the arithmetic on each redemption matters more. If you fly Delta, earning them is not a decision; how you spend them is.
Can I move points in from Chase or Capital One?
We have no verified route from either. Amex Membership Rewards is the only bank currency we have confirmed as transferring into SkyMiles, at 1:1.
Do SkyMiles expire?
No. The confirmed policy and its source are in the expiry section above, along with the circumstances in which Delta can still close an account and remove its miles.
Should I transfer Amex points now to be ready?
No. Transfers are one-way, and you would be converting a flexible currency into a single airline's. Find the award, confirm it is bookable, then transfer.
Sources and what we have not checked
- Official Delta SkyMiles page
- Reference valuation from AwardWallet, snapshot 2026-08-01, used with attribution. See our methodology.
Things we have deliberately not claimed here, because we have not confirmed them:
- How SkyMiles prices awards - chart, dynamic or hybrid.
- Partner airlines bookable with SkyMiles and their pricing.
- Whether transfer eligibility differs between Amex card products.