Guide · Miles & loyalty
By the TSA Wait Times team · Updated · Published June 2026
Booking award flights — free flights with miles — is one of the highest-value uses of points. But availability is limited and the booking process is not always obvious. Here is how to find seats, which programs offer the best deals, and how to actually complete the booking.

Most airline programs offer two tiers of award pricing. Understanding the difference is the single most important thing you can do before searching.
Concrete example: United MileagePlus saver to Europe in economy is 30,000 miles one-way. The standard rate for the same seat is 60,000 miles or more. Always hunt for saver space before settling.
Business class award space opens 11–13 months before departure. Airlines release their best inventory furthest out, so searching at the 11-month mark is the single most effective tactic for premium cabin awards. Domestic economy is more flexible but still book 3–6 months out for the best availability.
Most airline websites show their own saver award space but not partner space. Log in (some programs hide saver inventory for non-members) and search with flexible dates turned on. This is your starting point for every search.
Award space is not evenly distributed. Flying Tuesday instead of Thursday can open significantly more saver seats on the same route. If your schedule allows a ±3-day window, you multiply your options dramatically.
Booking two one-way awards (outbound and return separately) gives you more flexibility and access to different saver buckets. Many experienced miles travelers never book round-trip awards — the one-way search keeps each leg independent.
| Program | Typical one-way cost |
|---|---|
| United MileagePlus (saver) | 5,000–12,500 miles (short/medium routes) |
| Alaska Mileage Plan | 7,500–12,500 miles domestic |
| Southwest Rapid Rewards | ~1.5 cents per point value; no blackout dates; easiest to use |
Premium cabin transatlantic is where miles deliver their greatest value — cash fares routinely run $3,000–$6,000, and the best award rates are a fraction of that.
| Program & partner | One-way miles |
|---|---|
| Virgin Atlantic Flying Club → Delta One | 50,000–55,000 |
| Air France/KLM Flying Blue → Air France business | 50,000–75,000 |
| United MileagePlus → Lufthansa business (Star Alliance) | 70,000–88,000 |
| Alaska Mileage Plan → British Airways (Avios) premium | 57,500–67,500 |
Virgin Atlantic miles transfer from Amex Membership Rewards and Chase Ultimate Rewards at 1:1. Flying Blue accepts Amex MR and Chase UR and runs monthly Promo Rewards promotions that cut rates by 25–50%.
| Program & partner | One-way miles |
|---|---|
| Alaska Mileage Plan → Cathay Pacific first class | 70,000 (a famous deal) |
| United MileagePlus → ANA business class | 88,000 one-way; 175,000 round-trip (another famous deal) |
| Delta SkyMiles → Korean Air business | Variable with distance-based pricing |
Credit card points are the most flexible currency in the miles ecosystem. They transfer to multiple airline programs, so you can wait until you find a specific seat before committing to a single program.
Best strategy:earn transferable credit card points (Chase, Amex, Capital One), then decide which program to transfer to only after you have found the seat. Do not commit your points to a single airline program until the saver space is confirmed — transfers are permanent and almost never reversible.
The simplest measure is cents per mile (CPM): divide the cash price of the seat by the number of miles required.
| Scenario | Cash price | Miles used | CPM value |
|---|---|---|---|
| Intl business class (transatlantic) | $3,000 | 60,000 | 5.0¢/mile — excellent |
| Domestic economy (short hop) | $150 | 12,000 | 1.25¢/mile — borderline |
| Domestic economy (cheap route) | $200 | 12,000 | 1.7¢/mile — ok, but cash + flexibility may win |
Rule of thumb: domestic economy awards are worth pursuing at 1+ cent per mile. International business class is where miles truly shine at 3–8+ cents per mile value. Avoid burning miles on deeply discounted economy routes where the cash price is $150–200 — you lose both the miles and the flexibility to change your ticket later.
International business class: 11–13 months out for the best availability. Domestic economy: 3–6 months. Last-minute award space exists but is unpredictable.
Start with the operating airline's website for their own saver space, then use Seats.aero or Point.me to check what programs can book that space.
No — only transfer points once you have confirmed the award seat is available. Transfers are usually permanent and cannot be reversed.
Credit card programs like Chase Ultimate Rewards and Amex Membership Rewards let you move points to partner airline miles at a 1:1 ratio. This flexibility is the main advantage of transferable points over single-airline miles.
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