Key Points
- The airline owes you money the moment your bag misses the carousel, not weeks later when it's officially declared lost.
- File the Property Irregularity Report at the airport before you leave the secured area, and get the file number in writing.
- Run your credit card claim in parallel with the airline claim. Most premium travel cards pay faster and stack on top of what the airline owes.
TL;DR
Most travelers leave money on the table when an airline loses their bag. File a PIR at the airport, document every receipt, and run a credit card claim in parallel. Updated April 2026.
The verdict, up top
Airlines have a legal duty to pay you when they lose your bag. Most travelers don't collect what they're owed because they don't know the rules and the airline isn't going to volunteer them.
Here's the framework I use, and the one I've walked friends and family through more times than I can count:
- The airline has a hard liability under federal regulation (14 CFR § 254 for domestic, the Montreal Convention for international).
- You're entitled to interim expenses while the bag is delayed, not just final compensation if it's lost.
- Your credit card almost certainly has bag delay and bag loss coverage that runs in parallel with the airline's payout.
- If the airline drags, the DOT complaint process is a real escalation lever, not a polite suggestion.
If you do nothing else, internalize this: the airline is not your friend in this transaction, but it is bound by rules. Your job is to know the rules better than the agent at the desk.
The first 30 minutes: file before you leave
This is the step almost everyone gets wrong. You see your bag isn't on the belt, you stand there for ten minutes hoping it'll appear, then you get tired and walk out planning to call later. Don't do that.
Go to the airline's baggage service office, which is near baggage claim, and file a Property Irregularity Report (PIR). The PIR is the official record of your missing bag. No PIR, no claim. It really is that simple.
What you need from this interaction: a printed or emailed copy of the report with a file reference number (sometimes called a file locator or world tracer ID), the agent's name, a clear statement of what the airline will reimburse you for during the delay (and how to submit those receipts), and confirmation that delivery to your hotel or home is included once the bag is found. Delivery is always included, but get it confirmed in writing anyway.
Do not leave the secured baggage area without this report. Some airlines will reject claims filed after you've left, citing their own contract of carriage. I've seen it happen. The 30 minutes you spend at the desk is the cheapest insurance you'll buy all year.
One small thing that pays off: photograph your bag tag receipts and your boarding pass before you even land. If you've lost the bag tag stub, the airline will still help you, but the conversation starts harder.
The 24-72 hour window: what you're actually owed
This is where most people undersell themselves. While the bag is delayed but not yet declared lost, you're entitled to reasonable necessities: clothes, toiletries, medications, the basics you need because your stuff is somewhere else.
The phrase "reasonable necessities" is doing a lot of work in that sentence. The airline isn't going to buy you a new wardrobe. But they will reimburse you for a few changes of clothes appropriate to your trip (a suit if you're at a business conference, a swimsuit if you're at a beach resort), toiletries, a phone charger if yours was packed, replacement of any prescription medications that were in the bag, and reasonable shoes if you don't have what you need.
The unwritten daily ceilings most US airlines work with sit somewhere between $50 and $150 per day, depending on carrier and circumstance, but the rule on paper is "reasonable," not a fixed daily cap. Save every receipt. Buy what you actually need, not what you'd like to have. The airline will absolutely scrutinize a $400 dinner the night your bag was missing.
A practical tip: pay for these expenses on the same credit card you used to book the flight. That card's protection often covers the same expenses as the airline, and you may end up reimbursed twice (once by the airline, once by the card) if you submit both claims correctly. More on that below.
After 5 to 21 days: when the bag is officially "lost"
US Department of Transportation rules let airlines treat a delayed bag as still-being-searched-for during a defined window before declaring it lost. The window varies by carrier and route, but practically speaking, most US carriers declare a domestic bag lost after 5 to 14 days. Under the Montreal Convention framework on international flights, 21 days is the standard.
Once the bag is declared lost, you move from "interim expenses" mode into "compensation for the bag and its contents" mode. This is where the liability caps come in.
Domestic (US) cap: As of the latest DOT rulemaking I can verify, the maximum airline liability for a lost, damaged, or delayed bag on a domestic US flight is $3,800 per passenger. (DOT periodically adjusts this for inflation, so check transportation.gov/airconsumer for the current figure when you're filing.)
International cap: The Montreal Convention sets liability at 1,288 Special Drawing Rights per passenger for baggage. SDR is an IMF basket currency, so the dollar equivalent moves with exchange rates. As of April 2026 that works out to roughly $1,750. Again, verify the current SDR conversion when you file.
Here's the part nobody tells you: those caps are the maximum the airline is legally required to pay. They are not a starting offer or a suggested amount. You only collect those numbers if you can document the value of what was in the bag. Which brings us to the next point.
Documentation strategy: the airline pays for what you can prove
The single biggest reason claims get cut down: the passenger can't substantiate the value of the contents.
What works:
- A pre-trip photo of your packed bag. One photo, taken right before you zip it. This is the highest-leverage 30 seconds of prep you can do.
- Receipts for high-value items (laptops, cameras, jewelry, though note most carriers exclude these from coverage anyway, see below).
- A written inventory list. I keep a generic one in a note on my phone and update it before each trip.
- Credit card statements showing original purchase of items, especially clothing and electronics.
What doesn't work: telling the agent "I had about $2,000 of stuff in there." They'll offer you $250 and move on.
Important exclusion to know about: most airline contracts of carriage exclude liability for cash, jewelry, electronics, important documents, fragile items, and irreplaceable items. These are explicitly your problem if you check them. The airline can and will deny those parts of the claim. Don't check them. If you must, and sometimes there's no choice, declare them and pay for excess valuation coverage at the counter.
The under-used lever: your credit card
This is the part of the playbook most travelers skip, and it's the part that changes the math the most.
If you paid for the flight with a decent travel credit card, you almost certainly have baggage delay and lost baggage insurance built in. The coverage stacks with the airline's payout, meaning you can collect from both, as long as you don't double-count specific items.
Cards with strong baggage protection that I'd actually use this benefit on:
- Chase Sapphire Reserve: baggage delay coverage of up to $100/day for five days when bags are delayed more than 6 hours. Lost luggage benefit up to $3,000 per person for checked bags, $3,000 for carry-on items.
- Chase Sapphire Preferred: similar baggage delay coverage at lower limits, plus lost luggage protection up to $3,000 per passenger.
- American Express Platinum: up to $2,000 for checked bags and up to $3,000 combined for checked plus carry-on.
- Capital One Venture X: up to $3,000 combined coverage for lost or damaged checked baggage when the trip is paid for with the card.
The credit card claim process is almost always faster than the airline's. I've seen Chase pay out a delay claim in under 10 business days while the airline was still asking for additional documentation six weeks later.
How to run them in parallel:
- File the PIR with the airline at the airport.
- Within 24 hours, call the benefits administrator listed on the back of your travel card and open a delay claim. The administrator is usually a third-party company like AIG or Virginia Surety. Ask what documentation they need.
- Submit your receipts to both the airline and the card.
- If the airline pays for an item, you can't claim that exact item again from the card. But anything the airline doesn't reimburse, the card will likely cover up to its limits.
The claims feel duplicative. They're not. You're using two separate insurance products, and the card benefit exists precisely because the airline benefit is slow and capped.
Airline-by-airline candor
Different carriers handle this differently. After enough trips and enough delayed bags, patterns emerge.
Delta runs the smoothest baggage operation among US carriers, with a tracking app that actually works. Their automatic tracking notifications are the best in the industry, and reimbursement on delay claims tends to clear faster than most. If you're paying a premium for Delta, this is part of what you're paying for. United has improved a lot in the last few years. Their app shows real-time bag tracking, and the claims process is reasonable, if more bureaucratic than Delta's. American is middle of the pack: the app is fine, the claims department is slow, and you'll need to be persistent. Hub-and-spoke heavy means more chances for misconnects.
Alaska is small enough that you can often get a real human on the phone fast, which matters more than people realize. Their claims handling is reasonable. JetBlue has friendlier bag policies than the legacy carriers, but the recovery network is smaller, so a bag misrouted out of their hubs takes longer to find. Southwest offers free checked bags, which is great until your bag is delayed and you discover their baggage tracking is the weakest among US carriers. The free bag is the deal; the trade-off is less infrastructure when something goes wrong.
None of this should determine which airline you fly. But if you're already deciding between two equivalent options on price, the bag-handling track record is a real factor that most price comparison sites ignore.
The DOT complaint as escalation
When the airline drags (and they do drag), file a complaint with the Department of Transportation at transportation.gov/airconsumer. It's free, takes about 10 minutes, and forces the airline to respond in writing within 60 days.
I've seen this work. The DOT doesn't intervene to compel payment, but airlines treat DOT complaints differently than internal complaints. Your file moves up the queue. A claim that was sitting at "under review" for six weeks suddenly resolves in two.
Use this lever when the airline has gone more than 30 days without resolving your claim, when you've been offered an amount that's clearly below what you're owed, or when the airline is denying interim expenses you've documented and submitted properly.
Don't use it as the first move. File the PIR, give the airline a reasonable shot at making it right, then escalate. The DOT complaint is the stick. It works because you used the carrot first.
A note on AirTags and smart trackers
Drop an AirTag (or a Tile, or a Galaxy SmartTag) in your checked bag. They cost $30 and they change the negotiation completely.
When you can tell the agent, "My bag is currently at JFK Terminal 4 according to the AirTag," the conversation shifts from "we're searching for it" to "okay, here's what we're going to do to get it to you." We've covered the practical use of AirTags for travel in our AirTags travel guide. Worth the read before your next trip if you haven't set one up.
The trackers don't help the airline find the bag (they have their own systems). They help you call the airline's bluff when the bag is sitting at a known location and nobody's moving it.
The closing checklist
In order, when the bag doesn't show up:
- Confirm you're at the right carousel for your flight.
- Wait 15 minutes. Sometimes the bag is on the next cart.
- Go directly to the baggage service office. Do not leave the secured area.
- File the PIR. Get the file reference number in writing.
- Photograph your bag tag receipt, boarding pass, and the PIR confirmation.
- Ask the agent specifically what the airline reimburses for during the delay, and how to submit receipts.
- Open a credit card delay claim within 24 hours by calling the benefits number on the back of your travel card.
- Buy only the necessities. Save every receipt. Photograph each one.
- If the bag is declared lost (5-21 days), submit a full inventory with documented values to both the airline and the card.
- If the airline drags more than 30 days, file a DOT complaint at transportation.gov/airconsumer.
Run the credit card claim in parallel with the airline claim from day one. The two systems exist for exactly this reason. Use them both.
For prevention, our guide to avoiding lost luggage in the first place covers packing and routing strategies that meaningfully reduce the odds.
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