This post contains references to products from one or more of our advertisers. We may receive compensation when you click on links to those products. The content on this page is accurate as of the posting date; however, some of the offers mentioned may have expired. For more information check out our Advertising Disclosure. Any change, big or small, to an airline's frequent flyer program can set off alarm bells. In the world of redeeming miles, enhancements is actually a code word for devaluations, where airlines obliterate sweet spots and raise award rates across the board.

But that's not quite the case with the changes underway to Alaska Airlines Mileage Plan. Initially announced back in November, Alaska is pivoting to a new, distance-based award chart the cheat sheet that determines how many miles you need. Those changes have steadily been rolling out throughout the month of March, spreading to more flights on additional partner airlines when redeeming Alaska miles.

It comes with some bad news, of course. Some of the best deals to book business or first class on Oneworld partner airlines to Hong Kong (HKG) or Australia are disappearing though some of those had become largely impossible to actually book, anyway. But there's a genuine upside to the changeover, including some redemptions that are getting a bit or even much better.

Let's take a look at the best improvements and worst hits of the Alaska award chart changes.

The Good News: Alaska Airlines Mileage Plan Sweets Spots Alaska has moved to a new setup with three separate award charts: One for flights in the Americas, one for Asia-Pacific Redemptions, and another for Europe, the Middle East, and Africa. 

No matter where you're going, exactly how many miles each flight will cost you hinges on the distance of that flight. That switch to a distance-based award chart is a recipe for many more expensive award flights when booking with miles. The longer you fly, the more miles it will cost you.

Fortunately, short-haul flights as well as a handful of international flights remain sweet spots when using Alaska miles. And some are getting even better.

One word of warning, though: Just because these flights are starting at 4,500 miles each way doesn't mean that's always the rate you'll see. That hinges on finding the lowest-priced saver award availability especially when redeeming Alaska miles to book a partner airline.

So while the prices goes as low as 4,500 miles each way, you might see a higher rate when you actually search at Alaskaair.com

Short-Haul U.S. Flights from 4.5K Miles Alaska previously had an award chart for flights within North America (typically on either Alaska Airlines itself or American Airlines). Now, it's been rebranded as the Americas including North America as well as both Central America and South America.

The longer the flight, the more miles it may cost you. That's not a major change from how Alaska previously priced these awards. But the amount you'll pay for those flights has changed take a look.

Not sure how long your flight is? Plug the route into GCmap.com!

Other than lumping in flights to, from, or within Central and South America into this same pricing rubric, the big change is that the shortest flights now cost fewer miles: as low as 4,500 miles in economy and 13,500 in first class for flights under 700 miles in distance. Under the old system, those same flights used to cost at least 5,000 miles and 17,500 miles, respectively.

These new rates are live and bookable through Alaska already. Here's a look at a short flight from Seattle (SEA) to San Francisco (SFO) as an example.

While this likely won't amount to crazy savings, it will make shorter flights more affordable. And any positive change is always welcome.

Central and South America Flights from 4.5K Since Central and South America now follows a unified Americas award chart, the miles required to book a flight may drop significantly they just haven't yet.

Just like a short flight on the West Coast or anywhere else in the states, a flight of under 700 miles to, from, or within Central and South America will cost as low 4,500 miles. That includes the short American Airlines flight from Miami (MIA) to Cancun (CUN).

But it seems these lower rates haven't made their way to Alaska's site just yet: We couldn't find fares under 17,500 miles as of publication, so you might want to wait to book fares like these.

Slightly longer flights between 701 to 1,400 miles can be booked for as low as 7,500 miles, like this flight from Dallas-Fort Worth (DFW) to Mexico City (MEX). But just like the example above, we couldn't find those lower-priced awards just yet 17,500 miles was the cheapest we could find.

Meanwhile, even much longer flights that measure between 2,101 miles and 4,000 miles will get cheaper, including the Dallas to Bogotá (BOG) route with American: As low as 17,500 miles. Under the old system, that flight would cost 25,000 Alaska miles. Yet again, we can't find that lowest rate as of publication.

Sweet Spots for Japan Airlines Flights from 35K Once you get outside of the Americas, a different award chart takes over. Like others, award rates are determined by how far you fly.

That spells trouble for ultra-long flights to Asia, at least on paper. Here's the new U.S. to Asia Pacific award chart.

Most Japan Airlines flights from the U.S. measure 5,000 miles or more, meaning they'll cost at least 37,500 miles in economy while business class will run you 75,000 miles. That's an increase flying to and from several West Coast gateways but actually a slight improvement on the longer routes. This flight from Chicago-O'Hare (ORD) to Tokyo-Haneda (HND) previously cost 45,000 miles in economy and 80,000 miles for Japan Airlines business class.

But the new award chart also carves out an even better deal on the shortest flights to Tokyo from Seattle (SEA) and Vancouver (YVR). Because flights from both cities clock in under 5,000 miles, a one-way in economy now costs 35,000 miles while business class will run you just 60,000 miles.

Starlux Business Class for 75K Using Alaska miles to book a business class flight with the new, Taiwan-based Starlux Airlines is one of the best deals to get from the west coast to Taipei (TPE) and other destinations in Asia. Despite  all the changes with Alaska Miles, this redemption is safe.

A one-way, business class flight from San Francisco to Taipei remains unchanged at 75,000 miles each way.

You could also find business class availability departing from Los Angeles (LAX).

Fiji Airways Economy now 37,500 miles Redeeming Alaska miles on Fiji Airways, there are some positives and negatives.

As of publication, the Alaska website is still showing 40,000 miles for economy flights from the U.S. to Fiji. However, these rates are set to decrease to 37,500 miles, since the flight falls between 5,001 to 7,000 miles.

Business Class to Europe from 55K There's a third award chart that spells out changes, this time for flights to and from Europe, the Middle East, and Africa.

Condor business class is one of the most underrated ways to get to Europe especially without paying the huge surcharges you'd face flying other carriers like British Airways. And it's still a sweet spot with Alaska Miles.

From East Coast cities like Boston (BOS) and New York City (JFK) as well as Toronto (YYZ), it'll cost you just 55,000 miles to get to Frankfurt (FRA) in a lie-flat seat. Even longer flights from Baltimore (BWI) and Miami (MIA) cost the same amount.

Free Stopovers, Mixed-Carrier Reservations & Sales on Partner Airline Awards Some of the best parts of Alaska's Mileage program aren't going anywhere and the airline is even teasing some new features on the way that will add to this list.

Alaska has committed to continue offering one of the most generous stopover policies on award tickets in the airline industry: You can add a free stopover to any award ticket, squeezing in two destinations for the price of one. And yes, that includes even one-way award tickets. Sometime later this year, the airline will introduce the ability to book multiple partner carriers on the same itinerary, like flying to Hong Kong by connecting from Japan Airlines to Cathay Pacific. Alaska has said it plans to offer quarterly partner award sales, with discounts of up to 50% off on specific partners, routes, and destinations. That means some of the redemptions you see above could occasionally get even better. Alaska Airlines Mileage Plan Devaluations With new award charts come flights that require more miles to book.

Although there are some positive changes, there are many routes that got much more expensive when booking with miles. Let's take a look at some notable routes that were affected.

Hawaii Flights Will Cost 17.5K or More West coasters like myself used to be able to book a trip with Alaska Airlines (or American) to the Hawaiian islands for 12,500 Alaska miles each way, paying only $12 in taxes roundtrip! That's a steal for what can often be an expensive trip.

Unfortunately, as a trip from Seattle (SEA), Los Angeles (LAX), or any West Coast city to Honolulu (HNL) would fall within the 2,101 to 4,000 mile range, these flights will soon run you at least 17,500 miles. That change hasn't been made on Alaska's site as of publication, so you might want to hurry to book something before it costs you more!

LATAM Business Class Now 50K For longer flights with LATAM down to South America, you'll have to cough up more miles for routes above 4,001 miles.

So while a one-way business class ticket from Los Angeles to Santiago (SCL) previously cost 45,000 miles each way and still does, as these rates also have not yet changed over on Alaska's website it'll soon cost you 50,000 miles for the same flight. Same goes for the longer route from New York City (JFK) to Santiago.

Fortunately, economy rates will stay the same, starting at 25,000 miles.

Fiji Airways Business Class Now 75K Unfortunately, it's all bad news outside of the economy cabin when it come to Fiji Airways. What used to cost 55,000 miles to fly from the U.S. to Fiji (or even Australia and New Zealand with a connection in Fiji) is set to skyrocket. Rest in peace.

Nonstop flights from the U.S. to Fiji will now run you 75,000 miles for business class. And while you could once connect all the way through to either Sydney (SYD) or Auckland (AKL) with a pitstop (or free stopover) in Fiji for that same 55,000-mile rate, that gets even worse: 85,000 miles for business class.

These rates also haven't officially changed over to the new pricing yet. Book them while they last!

Qantas Rates on the Rise Alaska miles could be incredibly valuable for getting to Australia on the country's flag carrier. That's taking a hit, too.

Economy one-ways will cost at least 42,500 miles each way up slightly from the previous 40,000-mile rate It gets worse in Qantas business class: One-ways jump from the old rate of 55,000 miles to 85,000 miles each way Qantas First Class gets the worst of it, going from 70,000 miles each way to 130,000 miles.  Admittedly, booking premium cabins through Alaska at these dirt-cheap rates has become a bit of a unicorn recently. But we've sent Thrifty Traveler Premium members a handful of alerts over the last year including a deal just last week to fly Qantas First Class from Los Angeles (LAX) to Sydney (SYD) for 70,000 Alaska miles.

The new, higher rates weren't live on Alaska's site as of publication, so you've got a narrow window to book some of these deals if you can find them.

Cathay Pacific Redemptions Skyrocket For years, Alaska miles have been the best way to book Cathay Pacific business class or even Cathay First Class to Hong Kong. Heck, that's been one of the best ways to redeem Alaska miles, period.

For just 50,000 miles each way in business class and 70,000 in first class, it was a steal. But these new award charts will push that up to 85,000 miles each way for business class and 130,000 miles for first. Then again, the award availability to actually book those seats through Alaska has been scarce even nonexistent. Still, this one hurts.

Cathay Pacific economy flights are also set to rise to 42,500 miles each way. For now, you can still fairly easily find a Cathay economy seat at the older, lower rates of 30,000 miles each way.

Bottom Line Big changes are in motion when it comes to redeeming Alaska Airlines miles.

Starting earlier this month, Alaska began rolling out updated award rates to match a set of new award charts, whether you're flying Alaska with your Mileage Plan miles or one of its partner carriers. There are some small (and not-so-small) wins and some painful losses.

But those updates are still underway, so there may be window to score a deal before the new (and often higher) award rates take effect.