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The truth about frequent-flier upgrades

By Mark Orwoll
Air fare codes and upgrades have become increasingly difficult to decipher.
Air fare codes and upgrades have become increasingly difficult to decipher.
  • Upgrading with miles isn't the bargain it once was
  • Figure out the real cost of an upgrade to decide if it's worth it
  • Buying a business-class ticket is a better value in some cases

(Travel + Leisure) -- I thought I was being clever when I booked a $698 round-trip Delta flight from New York to London with the idea of getting an upgrade for 50,000 frequent-flier miles.

But when I went to the Delta website to complete the upgrade process, I was informed that I didn't qualify. I called a Delta agent to ask why.

"You bought a cheap ticket," the agent said. Turns out I had a T fare, which doesn't qualify for an upgrade. For that I would have had to buy a more expensive M, B, or Y economy fare, she said.

The agent was willing to rebook me at the cheapest price for an upgradable ticket: $2,393. On top of that I would have had to use 50,000 SkyMiles (worth $1,000 based on the commonly accepted value of 2 cents per mile), for a cash equivalent of $3,393.

Here's the kicker: I could have bought a business-class ticket on that same flight for only $2,800 -- $600 less than the upgrade would cost.

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Frustrated as I was with Delta, this situation could have happened with any airline, as fare codes have become increasingly difficult to decipher.

So what are the restrictions? It depends on the carrier: American, Continental, and US Airways have little to no restrictions on economy fares; Delta and United have more rules.

Even with a qualifying airfare, you might find your flight has already reached its limit of upgrades ("capacity controlled," in airline-speak). And some qualifying tickets require higher co-pays (up to $500 each way) or more miles than others. The reason? Too many fliers with too many miles, thanks partly to credit-card and other non-air-travel promotions.

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An alternate strategy would be to exchange miles for a business-class ticket rather than for an upgrade; it could be a better value.

But if you do decide to upgrade, you'll want to figure out the real cost (airfare plus miles plus co-pay) to decide if it's worth it.

You might find a good deal, especially on domestic flights. More likely, you'll be as surprised as I was to discover that, increasingly, upgrading with miles isn't the bargain it once was.

See what it costs to upgrade using miles

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