Airline Baggage Claim Deadlines (2026): 7-Day Rule, 21-Day Rule & More
Missing a baggage claim deadline is the #1 reason claims get denied. Delta requires damage reports within 6 hours. Southwest gives you just 4 hours at the airport. And the Montreal Convention's 7-day rule for damaged bags is a hard legal cutoff — no exceptions. Here's every deadline you need to know, organized by claim type.
Damaged Baggage Deadlines
International Flights (Montreal Convention)
US Domestic Flights
The 7-day international deadline is a hard cutoff. If you miss it, your claim is barred under the Montreal Convention — no exceptions. See our damaged luggage filing guide for the full step-by-step process.
Delayed Baggage Deadlines
International Flights (Montreal Convention)
US Domestic Flights
Lost Baggage Deadlines
International Flights (Montreal Convention)
US Domestic Flights
Quick Reference Table
| Claim Type | Action | International | US Domestic |
|---|---|---|---|
| Damaged | Report at airport | Immediately | Immediately |
| Damaged | Written claim | 7 days | 24h-7 days |
| Delayed | Report at airport | Immediately | Immediately |
| Delayed | Written claim | 21 days (after bag received) | 21-45 days |
| Lost | File formal claim | After day 21 | After day 21 |
| Lost | Submit documentation | 30-90 days | 30-90 days |
| All types | Lawsuit | 2 years | State SOL (2-6 years) |
Airline-Specific Deadlines
Major airlines have specific deadlines that may differ from the Montreal Convention minimums. These deadlines are set by the airline's own policy and can be stricter than the legal requirement.
North American Airlines
Budget and Ultra-Low-Cost Carriers
Budget airlines often have the strictest deadlines and least flexible claims processes:
International Airlines
For complete deadline information for any airline, visit our airline directory where each airline page lists every applicable deadline.
What Happens If You Miss a Deadline
How Deadlines Affect Your Compensation
Deadlines aren't just procedural — they directly determine how much compensation you can receive:
For domestic US flights, compensation caps range from $3,500 to $4,700 depending on the airline. International flights are capped at 1,519 SDR (~$2,000) under the Montreal Convention. See our lost luggage compensation guide for the full breakdown.
How to Never Miss a Deadline
Deadline Calculator: When Your Claim Is Due
All baggage claim deadlines are calendar days from a specific trigger event — not business days, and not from when you decide to file. Here's how to calculate yours:
Example: You flew on March 1 and received your damaged bag on March 2. Your 7-day written complaint deadline under the Montreal Convention is March 9 (7 calendar days from receiving the bag). If March 9 falls on a weekend, file before the weekend — there is no extension.
For delayed baggage, the 21-day clock starts when the bag is finally "placed at your disposal" — meaning delivered to you or available for pickup. If your bag never arrives, most airlines declare it lost after 21 days of delay, and you can then file for full compensation.
Use our free deadline calculator to automatically calculate every deadline based on your specific flight details and claim type.
Alaska Airlines Baggage Deadline Exception
Alaska Airlines has a unique deadline that works in the passenger's favor: the 20-minute baggage guarantee. If your checked bags don't arrive at the carousel within 20 minutes of the aircraft reaching the gate on mainline flights, you can visit the baggage office for a discount code or mileage credit — no formal claim needed.
This is separate from Alaska's standard baggage claim deadlines (which follow the same Montreal Convention rules as other US carriers). The 20-minute guarantee is essentially a proactive compensation trigger that kicks in before any claim filing is required.
Frequently Asked Questions
What is the 7-day baggage claim rule?
Under Montreal Convention Article 31, you must submit a written complaint to the airline within 7 calendar days of receiving a damaged bag. This is a hard legal deadline — miss it and your claim is legally barred, regardless of how valid the damage claim is. This applies to all international flights and most airlines apply the same standard to domestic flights.
Do weekends and holidays count toward the deadlines?
Yes. The Montreal Convention deadlines are calendar days, not business days. Seven days means seven calendar days, including weekends and holidays.
What if I reported at the airport but didn't file in writing?
The airport PIR is the first step, but for international flights, you ALSO need a written complaint within the specified period (7 days for damage, 21 days for delay). The PIR alone may not satisfy the Montreal Convention's written notice requirement.
Can I get an extension on a deadline?
No. The Montreal Convention deadlines are strict. Domestic airline policies may have some flexibility, but it's rare. Always assume the deadline is firm and file early.
Does the 21-day baggage claim deadline include weekends?
Yes. All Montreal Convention deadlines are calendar days, not business days. Weekends, holidays, and the day you receive the bag all count toward the 21-day period. If your delayed bag is returned on a Friday, day 21 falls exactly three weeks later on a Friday — regardless of any holidays in between.
What happens if the airline misses their response deadline?
Airlines don't have a legally mandated response deadline under the Montreal Convention. However, if you file a DOT complaint, the airline must respond within 60 days. Unreasonable delays in processing your claim also strengthen your case if you escalate to small claims court, as they suggest the airline is not handling your claim in good faith.