Escalation

How to File a DOT Complaint Against an Airline (2026 Guide)

My Bag Claim Team|January 24, 2026|7 min read|Updated March 25, 2026

A DOT complaint creates an official record when an airline has not resolved your baggage issue. DOT forwards consumer complaints to the identified airline and directs the airline to respond to the consumer. DOT does not publish a baggage-complaint success rate and does not investigate every consumer complaint.

When to File a DOT Complaint

File a DOT complaint when:

The airline denied your baggage claim and your appeal was unsuccessful

The airline hasn't responded to your claim within 30 days

The airline's offer is significantly below what you're owed

The airline violated federal regulations (e.g., missed compensation deadlines)

You want to create an official record of the airline's behavior

You don't need to exhaust all options with the airline first — you can file a DOT complaint at any point. You can also send a demand letter before or alongside the complaint.

Step-by-Step: Filing Your Complaint

Step 1: Go to the DOT Complaint Portal

Visit transportation.gov/airconsumer/file-consumer-complaint

Step 2: Select Your Complaint Category

Choose "Baggage" from the dropdown. This routes your complaint to the right team.

Step 3: Provide Your Information

Full name and contact information

Flight details (airline, flight number, date, route)

PIR reference number

Your claim/case number with the airline

Step 4: Describe Your Complaint

Write a clear, factual summary:

What happened (bag lost, damaged, or delayed)

When you reported it (date of PIR)

What the airline did (denied, lowballed, no response)

What regulation was violated

What resolution you're seeking

Step 5: Attach Documentation

Upload supporting documents:

Copy of PIR

Claim correspondence with the airline

Denial letter (if applicable)

Itemized list of losses

Receipts and photos

Step 6: Submit and Save Your Confirmation

You'll receive a confirmation number. Save it — you'll need it for follow-up.

What Happens After Filing

DOT routes the complaint: DOT sends the complaint to the identified airline and directs it to respond to you, with a copy to DOT.

The airline acknowledges it: Covered airlines generally must acknowledge a written consumer complaint within 30 days.

The airline responds: Covered airlines generally must provide a substantive written response within 60 days.

DOT uses complaint data: DOT tracks complaint patterns and may use targeted or sample reviews for compliance and enforcement. A response is not a promise of payment.

Why Airlines Take DOT Complaints Seriously

The DOT tracks complaint rates by airline and publishes them in the monthly Air Travel Consumer Report

High complaint rates can trigger DOT investigations and enforcement actions

Airlines face fines for violating federal aviation consumer protection rules

DOT complaints create a paper trail that strengthens any future legal action

Tips for an Effective DOT Complaint

Be specific — include dates, amounts, flight numbers, and PIR numbers

Cite regulations — mention 14 CFR Part 254 (domestic) or Montreal Convention (international)

Be factual — avoid emotional language, stick to what happened and what the law says

Show you tried — mention your direct attempts to resolve with the airline

State your desired outcome — "$X in compensation" is better than "I want them to do better"

What DOT Complaint Data Can—and Cannot—Tell You

DOT publishes complaint counts and categories in the Air Travel Consumer Report. Those reports can help consumers compare complaint records and help DOT identify patterns. They do not establish a baggage-complaint success rate, an expected payout, or a typical settlement timeline.

Sample DOT Complaint Language for Baggage Issues

Here's a template you can adapt for your DOT complaint. Replace the bracketed items with your specific details:

On [date], I traveled on [airline] flight [number] from [origin] to [destination]. Upon arrival, my checked bag [was damaged / did not arrive / was delayed for X days].

I filed a Property Irregularity Report (PIR #[reference]) at the airport on [date]. I submitted a formal written claim to [airline] on [date], requesting $[amount] in compensation based on [14 CFR Part 254 / the Montreal Convention].

[Airline] [denied my claim on date / offered only $X / has not responded after X days]. This response is inadequate because [explain — e.g., "the offered amount does not reflect the documented depreciated value of my items" or "the airline has exceeded the 30-day response window"].

I am requesting $[specific amount] in compensation, which reflects [the depreciated value of my lost items / documented interim expenses / repair costs].

Key tip: Be specific about dollar amounts and cite the applicable regulation. "I want fair compensation" is weaker than "$2,847 based on the depreciated value of my items under 14 CFR Part 254."

DOT Complaint vs. Demand Letter: Which to File First

The right sequence depends on the facts and what you have already sent:

DOT complaint: Free, creates an official government record, airline must respond within 60 days, contributes to the airline's public complaint statistics. Best when the airline is violating regulations or ignoring your claim entirely.

Demand letter: More direct, cites specific damages and legal basis, sets a clear deadline for payment, lays the groundwork for small claims court. Best when you have a specific dollar amount and want to signal you're prepared to take legal action.

Practical sequence: Give the airline a clear written claim with supporting evidence first. If its response is missing or inadequate, use the DOT complaint process to create an official record. A demand letter may be appropriate when you can state a supported amount and legal basis; it is not a guarantee of payment.

Frequently Asked Questions

Is filing a DOT complaint free?

Yes. Go to transportation.gov/airconsumer/file-consumer-complaint. No lawyer is required to use the complaint form. Completion time depends on the details and attachments you need to provide.

What information do I need to file a DOT complaint?

You'll need: your flight number, date, and route; your PIR reference number; your claim or case number with the airline; a factual description of what happened and how the airline responded; and any supporting documents (PIR copy, correspondence, photos, receipts). The more specific and documented your complaint, the stronger it is.

Do airlines really take DOT complaints seriously?

Covered airlines are required to respond to written consumer complaints, and DOT publishes complaint statistics. That process creates accountability, but it does not guarantee a different decision, settlement, or payment.

Can I file a DOT complaint for an international flight?

Yes, if the flight departed from or arrived in the US, or was operated by a US airline. For purely foreign flights, you may need to file with the aviation authority of the country where the flight operated.

How long after my incident can I file a DOT complaint?

There's no strict statute of limitations for DOT complaints, but file as soon as possible while the details are fresh and documentation is readily available.

Does the Airline Change the DOT Process?

The core complaint process is the same: identify the airline, describe the issue, attach the supporting record, and state the response you are requesting. The airline's own claim portal, contract of carriage, and internal escalation contacts still vary. Use our airline directory to find those filing details, then verify the current instructions on the airline's official website before submitting.