Mergers Break Loyalty Programs. Here's How MileIntel Catches It.

The Allegiant-Sun Country merger got DOT approval on April 15th. I read the AeroMorning piece at 6am, coffee in hand, and my first thought wasn't "interesting industry news." It was: we are not ready for this.

Not in a panicked way. More like the feeling when you realize you've been building a house and forgot to account for the plumbing.

Mergers are loyalty program earthquakes. The table below shows exactly how bad the turbulence has been across the last four major U.S. airline consolidations:

Allegiant and Sun Country are both small. Their loyalty programs, Allways Rewards and Sun Country Rewards, are not exactly the crown jewels of the points world. But the pattern is what matters: merger announced, programs run in parallel, one gets absorbed, earning rates shift, redemption values change, status matches get offered and then quietly expire, and somewhere in the middle of all that, a user's 47,000 points quietly become worth 30% less than they were six months ago.

That's the exact scenario MileIntel exists to catch.

So this week I want to talk about two features that became a lot more important to me after reading that merger news: the upgrade monitor and the elite status tracker.

The Upgrade Monitor: Why I Built It Backwards First

Here's the embarrassing version of this story.

I originally built the upgrade monitor to watch for business class availability on specific flights. You enter a route, a date range, a cabin class, and we ping you when seats open up. Simple enough concept. I thought it would take two weeks. It took six.

The problem wasn't the availability checking. That part worked fine. The problem was that "upgrade available" means completely different things depending on the airline, the fare class you booked, your status tier, and whether you're using miles or a systemwide upgrade certificate. A seat showing as "J" available on United doesn't mean a MileagePlus member with no status can book it with miles. It might be blocked for partner redemptions. It might require a specific instrument.

I shipped the first version anyway. It was technically functional and practically useless. Users were getting alerts for seats they couldn't actually book.

I pulled it back after 11 days. Rewrote the logic to layer in fare class eligibility rules for the 12 programs we support most deeply. The differences between programs are stark:

Now when you set an upgrade alert in the upgrade monitor, you also tell us your status tier and what instrument you're planning to use (miles, SWU, GPU, etc.), and we only fire the alert when the seat is actually accessible to you specifically.

The current version has sent 1,847 upgrade alerts since we relaunched it 6 weeks ago. Of those, 94.3% were for seats the user could actually book. That 5.7% failure rate still bothers me. The cause is latency: some airlines change fare class availability in the window between our check and when the user clicks through. We poll every 4 minutes on high-demand routes and every 22 minutes on thinner routes. We're testing a 90-second poll cycle on a subset of transatlantic routes this month.

app.mileintel.com/upgrade-monitor

The Elite Status Tracker: The Feature That Taught Me to Slow Down

Back in March, when I wrote about tracking 47 airline programs, I mentioned that the data infrastructure was the hard part. The status tracker is where that infrastructure finally pays off in a way users can actually see.

The core idea: you tell us your current status, your qualifying metrics so far this year (PQP, EQM, EQS, segments, whatever the program uses), and your target status tier. We project your qualification date based on your historical earning pace and flag if you're on track, behind, or need a mileage run.

Here's how the major U.S. programs structure their qualification requirements, since these vary more than most people realize:

What I didn't anticipate was how much users would care about the multi-program view. I built it thinking people track one program seriously. Turns out a meaningful chunk of our users are managing status runs across two or three programs simultaneously, usually because they're trying to match status from a merger or a new credit card benefit.

Which brings me back to Allegiant and Sun Country.

When these programs eventually combine, there will be a window where status from one program can be matched to the other. Based on prior mergers, here's what that window typically looks like in practice:

The users who have their status data already loaded into the status calculator will be positioned to act on that match window the day it opens. Everyone else will find out about it on a FlyerTalk thread three weeks after the deadline.

I'm not overselling this for Allways and Sun Country specifically. These are small programs. But the Alaska-Hawaiian integration is a live test case right now, and the status match window for HawaiianMiles members has already opened. If you fly Hawaiian regularly and haven't checked the status calculator this week, do it today.

app.mileintel.com/status-calculator

The Numbers This Week

Three Things to Do Right Now If You're Mid-Merger

If you're holding status or a meaningful points balance in Alaska, Hawaiian, Allegiant, or Sun Country, here are the specific steps worth taking this week:

1. Load your current balances into the status calculator. Takes 3 minutes. If a status match window opens with 14 days notice, you want your baseline already documented, not scrambled together the morning you see the announcement.
2. Set a points-value alert for any program you're accumulating in. We track redemption value benchmarks across all 47 programs. If HawaiianMiles drops below 0.9 cents per mile (the historical floor before conversion announcements), we'll flag it. Use the program tracker to set your threshold.
3. Screenshot your account dashboard in both merging programs today. This sounds low-tech because it is. Merger portals sometimes lose historical data during system migrations. United-Continental members lost upgrade instrument records in 2012. Having a timestamped local copy has bailed out more than a few readers who've written in.

What I'm Still Figuring Out

The honest answer to "are you ready for the Allegiant-Sun Country merger" is: mostly.

The status tracker handles multi-program tracking well. The upgrade monitor works for the 12 programs we've mapped deeply. But our coverage of Allways Rewards specifically is thin. It's a small program, not a lot of user demand historically, so we deprioritized it. That's the right call in a resource-constrained world, but it means we'll be scrambling to add proper fare-class support if the merger timeline accelerates.

I've also been thinking about a harder problem: what do you tell users when a program they're tracking disappears? Not devalues. Disappears. Their points get converted at some ratio, their status gets matched or doesn't, and the program they've been optimizing for no longer exists. The Alaska-Hawaiian integration is giving us a live test case right now.

If you're tracking status in a program that's currently mid-merger, I'd genuinely love to hear what information you wish you had. The status calculator is free to use, and I read every piece of feedback that comes in.

What's the one thing you wish a tool like this would tell you during a merger?