Which transfer bonus gives the best value right now?

The answer depends entirely on what you want to book, but one deal stands out for sheer efficiency. Rove is offering a 40% transfer bonus to Copa Airlines' ConnectMiles through September 30, 2026. With that bonus, you can get Emirates business class to Dubai for just 57,200 Rove Miles—that's because Copa awards Emirates at 80,000 miles with no fuel surcharges, and the bonus cuts your required Rove balance by 40%. If you have Rove points and want a luxury long-haul redemption, that's the best hard value in the bunch right now.

Capital One's third 30% transfer bonus to Japan Airlines Mileage Bank (through September 30) is also solid, bringing the effective conversion ratio to nearly 1:1. JAL miles work well for awards on their own metal, especially when American Airlines can't see the same space. But unlike the Copa/Emirates play, you're not getting a dramatic discount—just a better-than-usual exchange rate.

Virgin Atlantic's 70% bonus on purchased miles (through October 4) sounds huge, but the fine print matters. After the bonus, you're still paying about 1.47 cents per mile in USD (or 1.19 cents if you can buy in GBP). That only makes sense if you have a specific Virgin or SkyTeam partner award that you know costs fewer miles than the cash price would justify. And Turkish Airlines' buy-miles campaign (through September 10) doesn't discount the miles at all—you pay the usual 3 cents each—but you do earn up to 20,000 status miles. That's only worth it if you're chasing Turkish elite status and have no other way to get there.

So the actionable takeaway: If you have Rove points and want a premium cabin to the Middle East or Asia, jump on the 40% Copa bonus before it ends. If you're a Capital One user eyeing Japan Airlines awards, the 30% bonus is a fine top-up. Pass on Virgin unless you've already done the math on a specific redemption, and ignore Turkish unless status is your goal.