Cheapest Airline Miles to Buy Right Now (2026)

What are the cheapest airline miles to buy in 2026?

The cheapest airline miles to buy in 2026 come from the secondary market, where per-mile prices run well below what airlines charge to buy miles directly. On the MileMarketplace price index, the October 1, 2026 snapshot of lowest live listings ranged from $0.017 to $0.021 per mile for airline programs (price report), while Delta and United sell miles at 3.5 cents plus 7.5% tax, about 3.76 cents per mile (airline buy-miles pages, accessed 2026-10-05), and American's price runs from about 3.76 down to 2.25 cents by volume (WalletHub, September 2026). That gap is the whole point: a marketplace mile is often about half the price of the same mile bought from the airline.

The single cheapest airline program shifts daily as live per-mile prices move, which is why a live ranking beats a static 'best programs' list. MileMarketplace sells miles directly to travelers, usually below the airline's own price, and the seller delivers the miles or books the award ticket, depending on the listing. If you want to skip the theory, you can browse miles by program sorted cheapest-first and see the current floor for any airline in seconds. Any seller-issued booking depends on the listing’s delivery method and the program’s rules; it is not available for every offer. Review the full checkout cost and stated timeline.

How much does it cost to buy airline miles directly from an airline in 2026?

Buying airline miles directly from United or Delta in 2026 costs 3.5 cents per mile plus taxes and fees, about 3.76 cents with the 7.5% U.S. excise tax, so 10,000 miles costs about $350 before taxes (Delta and United buy-miles pages, accessed 2026-10-05; tax figure per WalletHub, September 2026). American AAdvantage uses tiered bulk discounts that bottom out around 2.25 cents per mile only when you buy about 151,000 miles at once (WalletHub, September 2026).

Airlines price purchased miles as a revenue product, not as a discount. The all-in cost climbs higher once taxes and fees are added at checkout, and most programs cap how much you can buy: United's promotion terms have limited purchases to 50,000 miles in a 90-day window (WalletHub, September 2026), and American caps purchases at 300,000 miles per calendar year, buy and gift combined (American Airlines, accessed 2026-10-05). For the lowest cost per mile, buying airline miles direct almost never wins on price.

Why are marketplace airline miles cheaper than buying from the airline?

Marketplace airline miles are cheaper than buying from the airline because of who is selling and why. When an airline sells you miles, it sets a single retail price designed to capture most of the redemption value, and there is no competition to pull that price down, so Delta and United stay at about 3.76 cents per mile including tax. Prices on MileMarketplace are set by live supply competing for buyers, which held the lowest airline listings at 1.7 to 2.1 cents per mile on October 1, 2026.

As a buyer, you capture the gap between the airline's retail rate and what a member will accept. Supply is enormous: McKinsey estimated roughly 30 trillion airline miles sit unredeemed worldwide (point.me, citing McKinsey 2018), and that overhang is exactly why marketplace prices stay low. You can buy those miles below airline prices on MileMarketplace and have the seller deliver the miles or book the award, depending on the listing, with no transfers to manage. Any seller-issued booking depends on the listing’s delivery method and the program’s rules; it is not available for every offer. Review the full checkout cost and stated timeline.

Which airline programs are the cheapest to buy on the secondary market?

The cheapest airline programs to buy on the secondary market are flexible currencies with deep partner award charts, because plenty of members earn them and list them for sale. In the October 1, 2026 snapshot, Air Canada Aeroplan, British Airways Avios, Avianca LifeMiles and Virgin Atlantic Flying Club sat at the bottom at $0.017 per mile, with United MileagePlus and Delta SkyMiles at $0.0175 and Cathay Asia Miles at $0.018. American AAdvantage and Alaska Atmos Rewards sat at $0.020 and Lufthansa Miles & More topped the airline range at $0.021, still below American's own direct rates.

Hotel points ran even lower than airline miles in the same snapshot: Hilton Honors at $0.006 per mile, Marriott Bonvoy at $0.009 and Choice Privileges at $0.0095. But the cheapest airline program is whichever has the lowest active listing at the moment you check, so the ranking is published live rather than fixed. The full current ranking lives on the miles price index.

• Cheapest flexible airline miles: Aeroplan and Avios sat at $0.017 per mile in the October 1, 2026 snapshot.
• Mid-range: Cathay Asia Miles, KrisFlyer, and United around $0.016 to $0.017.
• Top of the airline range: American AAdvantage around $0.020, still below airline retail.
• Cheapest overall in the October 1, 2026 snapshot: hotel points, with Hilton Honors at $0.006 per mile.

Do buy-miles promotions ever beat marketplace prices?

Buy-miles promotions rarely beat marketplace prices, even at their best. Airlines run frequent bonus-miles sales, and a strong one can cut the effective rate sharply: a recent United offer of up to a 100% bonus brought 50,000 miles (25,000 plus a 25,000 bonus) to about $940 after taxes, or roughly 1.88 cents per mile (AwardWallet, 2026). Delta has historically offered a buy-miles promotion only rarely; a late-2025 promotion with up to a 50% bonus still landed at about 2.51 cents per SkyMile (AwardWallet, 2026).

Even those promotional rates of 1.88 to 2.51 cents per mile sit above the 1.7 cents per mile of the cheapest airline listings in the October 1, 2026 snapshot. A buy-miles promotion is best used to top off a balance you already need for a specific award, not as a way to acquire cheap miles in bulk. When the goal is the lowest cost per mile, the marketplace still wins.

What is the catch with the cheapest airline miles?

The catch with the cheapest airline miles is that a low per-mile price means nothing if the award also carries heavy carrier-imposed surcharges. Some programs add hundreds of dollars in cash fees on top of the miles, which can erase the savings from a cheap mile. British Airways business-class awards on its own metal can run at least $1,000 round-trip in carrier-imposed surcharges and fees on top of the Avios cost (The Points Guy).

Air France-KLM Flying Blue raised its carrier surcharges in March 2026 on flights operated by Air France and KLM, with intercontinental tickets adding roughly EUR 100 to EUR 400 depending on route and cabin (Frequent Miler). The lesson is to judge the cheapest airline miles on the all-in cost of a real award, not on the per-mile sticker price alone. Routing the same award on a partner airline often sidesteps the worst surcharges.

How do you tell if cheap airline miles are actually a good deal?

Cheap airline miles are a good deal when your all-in cost, the price of the miles plus the cash taxes and surcharges, is clearly below the cash fare for the same seat. Run that one comparison every time and the answer is obvious. A cheap mile in a program with high surcharges or no award space for your route is not a deal; a slightly pricier mile that unlocks an open business-class seat usually is.

The discipline is to price the exact award first, then check the per-mile cost to acquire those miles, then compare both against the cash fare. The worked example below shows how the math plays out on a real transatlantic business award.

Which cheap airline miles are the most useful to buy?

The most useful cheap airline miles are flexible currencies with premium-cabin sweet spots, because they turn a low purchase price into a high-value redemption. Air Canada Aeroplan, British Airways Avios, Air France-KLM Flying Blue, and Singapore KrisFlyer repeatedly show up as buyer favorites: they are inexpensive to acquire and can book outsized value in business and first class across Star Alliance, oneworld, and SkyTeam partners.

Buying cheap airline miles in a program with no good sweet spots just gets you a cheap currency you struggle to spend. Pair a low per-mile price with a program that has both award space and a redemption you actually want. To compare what each currency is worth before you buy, see how much are airline miles worth.

Can you buy airline miles below 1 cent per mile?

Rarely: in the October 1, 2026 snapshot no airline program listed below 1.7 cents per mile, and sub-penny pricing appeared only in hotel points (Hilton Honors at $0.006 per mile). Sub-penny pricing usually appears in currencies that are easy to earn and harder to redeem at top value.

Before buying any airline miles purely on a sub-penny price, confirm you can redeem that specific currency for the trip you want. A mile that costs $0.006 but has no award space on your route is worth less than a $0.015 mile that books the seat you need.

Is it cheaper to buy airline miles or pay the cash fare?

For premium-cabin tickets, buying airline miles is usually far cheaper than paying the cash fare; for cheap economy tickets, paying cash is normally the better deal. The reason is that airlines price business and first-class cash fares at a steep premium, while the miles needed to book the same seat stay relatively fixed. Buy those miles cheaply on the secondary market and the gap widens further in your favor.

The table below compares a typical transatlantic business-class seat three ways: the cash fare, the cost of buying the miles direct from the airline, and the cost of buying the same miles on MileMarketplace.

Where should you buy the cheapest airline miles safely?

You should buy the cheapest airline miles from a marketplace that publishes live per-program prices, so you are comparing real prices and not guessing. MileMarketplace sells miles directly to travelers below the airline's own price, and the seller delivers the miles or books the award ticket, depending on the listing, which means no transfers to coordinate and no waiting on a member to deliver. Any seller-issued booking depends on the listing’s delivery method and the program’s rules; it is not available for every offer. Review the full checkout cost and stated timeline.

Start by pricing the award you want, then buy the miles for that award on MileMarketplace at the lowest available rate. If you want to vet the process first, read where to buy airline miles safely and is MileMarketplace legitimate before you commit.