One of our pet peeves with traveling is wondering if our bags end up on our flight or if we need to spend extra effort tracking them down.

Airlines will sometimes place your checked luggage on a different flight

The vast majority of the time, when you check a bag on your flight, it will be on the same flight as you. It makes sense: both you and your bag are going to the same location. Logically, the bag should just be on the same flight as you are. However, the airline won’t tell you in advance that your bag may end up on a different flight than you.

Why would an airline do this? Perhaps there is a weight balance issue and they have to move a bag to another plane. Or perhaps the plane is holding too much cargo and there isn’t enough space for all bags. But however you slice it, there’s a non-zero chance your bag ends up on a different flight than the one you’re taking. And routes that have higher frequency have a higher chance of this happening.

You can’t ask your bag to go on a different flight than yours–it’s a security risk. But they can move your bag to another flight without that same security risk. And so airlines do this on occasion. When the bag arrives on a different flight than the one you’re taking, it should end up inside the baggage office.

…But this can materially inconvenience customers

Maybe I just have bad luck when this happens, but I’ve experienced a number of issues when airlines move bags to other flights and I know I’m not alone.

Flights get delayed

I’ve had it before where an airline placed a bag on an earlier flight than the one I was taking. That should mean the bag arrives earlier than me and that it will be waiting for me on arrival, right? Well, while my flight wasn’t delayed, the earlier flight was delayed and arrived later than my flight. So now I have to take a delay just because of my baggage was on a delayed flight.

If your airline takes frequent delays, the last thing you should want is to increase your exposure to delay risk by having to rely on two flights showing up on time.

The baggage office line can be long

Imagine you arrive off your flight, you wait around to see if your bags are going to show up, then you check your app to see that the bags have already arrived. The only way to know if your bags aren’t lost/stolen is to go check with the baggage office. But you see that there is an excruciatingly long wait for the baggage office. Perhaps it’s understaffed or people ahead of you have major complications.

Again, you might be forced to wait for someone to retrieve your bag. That’s yet another delay you might have to take even though the bag should already be there. Sometimes the airline will just leave the bags in a corner and anyone can walk up and take one. But that causes other issues.

Bags can go missing

Yet another thing that unfortunately happened to us with bags showing up on a different flight. We checked a stroller and the stroller ended up on a flight after ours. You can debate the usefulness of that scenario, where the passenger no matter what will be delayed hooking up again with their luggage. Well, the baggage office promised that it would be shipped to us if we chose not to wait. We took them up on their word but in retrospect, we shouldn’t have trusted the process.

The stroller never made it back to us. And the airline said they had no notes on it after it arrived. All because the stroller went on a different flight than the one we were on.

Bag tracking services in airline apps aren’t always the most thorough

Some of the confusion over your bag showing up on time could be eliminated with the bag tracking services airlines added to their apps. However, it’s not always well-documented. For example, United’s bag tracking app feature doesn’t seem to update regularly as it enters and exits planes. Delta’s version is a little more reliable but still not perfect by any means.

When the app works properly, you might know if the bag is already in town ahead of you and waiting in the baggage office. But the technology is only good when agents follow the correct process. If they don’t, you’re going to be left in the dark, which isn’t a great feeling.

That’s why we generally recommend taking along some trackers of your own, like these Apple AirTags (Amazon affiliate link). It can help fill in the gaps when the airline app services don’t work as well as they should. And it can help make sure that if someone does take your bag, you know a little more about where it might be.

How exactly is this a “premium” experience?

Perhaps you’d think this is just something that a low cost carrier might do, but all airlines do this to some capacity. You’re typically not going to see this happen on international flights because customs processes generally don’t allow it. But domestic flights are game to this.

Some airlines are currently in a push to brand themselves as a “premium” airline. We’re not sure how moving the bags off the flight you’re on helps push that perception of being premium. The best-case scenario is you end up grabbing your bag immediately from the baggage office rather than wait for it to arrive on the carrousel. But it’s never been that simple for us in the off-chance this happens.

You’d think this occurs less often (or not at all) for higher elite customers. However, that’s not the case either. Both Jenn and I flew on a Delta flight on separate itineraries and we both checked our own bags. At the time, she had Gold Medallion status and I had Diamond. Of the two, my bag was the one to end up on a different flight (and that flight was delayed). The bags were also similar in weight and dimensions, leading me to believe they just choose bags until they get to the targeted weight.

This is exactly why people hate checking bags with airlines

Some like to say there are two types of bags: carry-on and lost. And while lost baggage is a frustrating experience, the other real possibility is general frustration. People are frustrated with a multitude of issues with the checked bag process:

• Airlines can and do lose bags regularly
• Bags can suffer damage from handlers who don’t care enough
• Sometimes there seems to be no sense of urgency in delivering bags at the end of the journey

Add to this the pain of dealing with the baggage office to find out your bag arrived on an earlier flight–or is on some other flight that’s still in transit.

Airlines shouldn’t be able to call themselves a premium airline until they eliminate this

Here’s the hot take: airlines must eliminate disruption by not moving bags around to other flights. We’d like to assume they try to minimize it on their own just to simplify the logistics. But to willingly inconvenience passengers because of logistical issues? That’s not something they should be doing if the airline considers itself “premium”.

Could they, as an initial step, add it as an elite benefit? Sure, if they’re looking to monetize it and consider it unavoidable that there must be some shift for luggage transport.

Are there bigger issues in the airline industry? You bet there are. But can airlines also work towards creating this aura of premium services while also shoring up on choke points that cause problems with net promoter scores? Yes, absolutely. This is just a piece of the puzzle, but one that would be helpful in creating good will and predictability in the checked bag process.

What holds you back from checking bags?

Suggested reading:

• The Travel Gadgets That Make Our Travel Easy
• Why I Always Check a Bag with Delta
• How to Handle Last-Minute Flight Problems