U.S. Airport Entry: The Arrival Process, CBP & Customs

When your plane lands in the United States, the most important part of your trip begins: inspection by U.S. Customs and Border Protection (CBP). Here, a border officer decides whether – and for how long – you may actually enter the country, regardless of whether you hold an ESTA approval or a visa. This article explains the entire airport process step by step, what you may bring, and how to avoid common mistakes.

How does entering the U.S. at the airport work?

The sequence is nearly the same everywhere: you leave the aircraft, go to CBP primary inspection, have your photo and fingerprints taken, answer a few short questions, receive your admission with a stamp, collect your luggage and pass through customs. For German travelers with ESTA or a visa this usually takes 15 to 60 minutes under normal conditions, depending on the airport, time of day and staffing.

Step by step: your path through U.S. border control

1. Deplane and follow the signs. Follow the Immigration / Passport Control signage. Have your passport and, if applicable, your visa ready. You do not need to print your ESTA; it is linked electronically to your passport.
2. Join the correct line. There are separate areas for U.S. Citizens / Residents and for Visitors. Traveling with family usually lets you approach the booth together.
3. Primary inspection – photo and fingerprints. At the booth or kiosk, a photo is taken and your fingerprints are captured. CBP uses the Simplified Arrival process: your live photo is matched by facial recognition against the passport or visa photo on file. CBP states the match is more than 98% accurate and takes only a few seconds.
4. Answer the officer's questions. The CBP officer asks short questions about the purpose and length of your trip (see below). Answer calmly, honestly and briefly.
5. Admission decision and I-94 record. If the officer admits you, they stamp your passport and electronically create your I-94 record – your official arrival record with the date until which you may stay.
6. Collect your baggage. Follow signs to Baggage Claim and pick up your checked luggage.
7. Customs. With your luggage you pass through customs. If you have nothing to declare, this is usually quick; otherwise you hand over your customs declaration.

Important: An approved ESTA or a valid visa only authorizes you to travel to the U.S. border. It is not a guarantee of admission. Admissibility is determined on the spot by the CBP officer under the Immigration and Nationality Act.

What is the role of the CBP officer?

The CBP officer at primary inspection is the key person for your entry. They check your documents, compare the biometric photo, ask questions and make the final decision on your admission and on how long you may stay. Even with a valid visa or ESTA, the officer can refuse entry if they doubt your stated purpose or identify a ground of inadmissibility.

So prepare for the brief interview, stay polite and be consistent. Contradictions between what you stated in your ESTA/visa and your spoken answers stand out.

Typical questions – and how to answer

The questions are routine and clarify the purpose of your stay. Common ones:

• What is the purpose of your visit? – e.g. “vacation”, “visiting family” or “business meeting”. Note: traveling on ESTA (Visa Waiver Program) does not allow you to work in the U.S.
• How long are you staying? – Give a specific period that matches your return ticket.
• Where are you staying? – Hotel name or your host's address.
• What do you do for a living / do you have a return ticket? – Shows that you intend to leave again.

Answer honestly, clearly and briefly. Keep evidence handy: return ticket, hotel reservation, and if relevant an invitation or conference documents. Do not invent anything or oversell – even small inconsistencies can lead to secondary inspection. If it is your first trip, see our tips for your first U.S. trip.

What is the electronic I-94 – and why does it matter?

The I-94 is your Arrival/Departure Record. At air and sea ports it has for years been created automatically and electronically; you generally no longer receive a paper form. Instead you get an admission stamp in your passport. The I-94 records:

• your I-94 number (admission number),
• your date of entry,
• your class of admission (e.g. WT for tourism under the Visa Waiver Program, B2 for a tourist visa),
• the “Admit Until” date – the last day you are authorized to remain in the U.S.

This date is decisive: it is not automatically the same as your visa validity or the 90 days of the Visa Waiver Program. What counts is what the I-94 says. Overstaying can jeopardize future entries and visas.

How to retrieve your I-94

Check your I-94 after every entry on the official site i94.cbp.dhs.gov. Retrieval is free and takes about two minutes. You need:

1. your full name exactly as in your passport,
2. your date of birth,
3. your passport number and country of issuance.

Verify that the class of admission and the “Admit Until” date are correct – occasionally there are typos you should have corrected at the airport or via CBP. Using “Get Travel History” you can also view your arrivals and departures of the past five years. You often need the I-94 as proof of status – for a car rental, an employer or government offices.

Customs rules: what may I bring into the U.S.?

After border control comes customs. The basic rule: when in doubt, declare. What you declare correctly may at worst incur duty – what you conceal can be seized and lead to heavy penalties. The declaration is made on CBP Form 6059B, and at some airports via the CBP One app or self-service kiosks.

Cash over US$10,000

You may bring in and take out any amount of cash – but amounts over US$10,000 (in cash or monetary instruments, also combined within a travel group/family) must be reported on FinCEN Form 105. This is neither prohibited nor taxed; however, failing to report is a serious offense and can lead to seizure.

Food and agricultural products

The U.S. strictly protects its agriculture from pests and disease. All food, plant and animal products must be declared – even packaged or processed ones. Many items, such as fresh fruit, vegetables and many meat products, are prohibited. Failing to declare agricultural products risks fines (for non-commercial quantities up to around US$1,000 for a first offense). When in doubt: declare it, or leave it at home.

What is secondary inspection?

If the primary officer cannot or will not decide immediately, they refer you to secondary inspection. This happens with or without specific suspicion – for document discrepancies, questions about your purpose, random screening or prior flags. Secondary inspection is not automatically a bad sign, but it can cost time.

There, CBP officers may also search your electronic devices (smartphone, laptop). Under CBP Directive 3340-049B, in effect since January 2026:

• A basic search (manual review) is permitted without specific suspicion.
• An advanced search (connecting to external equipment / extracting data) requires reasonable suspicion and supervisor approval.
• Only data stored on the device is searched – CBP does not actively access cloud accounts (consider enabling airplane mode).
• You are notified in advance of the purpose and legal authority.

Your rights as a visitor are limited: no law forces you to hand over a passcode – but as a non-citizen, refusal can lead to denial of entry, device retention or prolonged detention. If you travel with sensitive data, minimize it beforehand.

Faster through inspection: APC and MPC apps

To shorten waits, CBP offers automated options:

• Mobile Passport Control (MPC): a free app (iOS/Android). You scan your passport, take a selfie and answer the entry and customs questions in advance. You receive a QR-code receipt (valid about 4 hours for air arrival) to use an express lane to the officer. Up to 12 people can be included via one device – ideal for families.
• Automated Passport Control (APC): self-service kiosks at the airport where you scan your passport, submit a customs declaration and capture biometrics. However, CBP is retiring APC kiosks in favor of MPC, so rely primarily on the MPC app.

If you travel to the U.S. frequently, also consider Global Entry – the fastest option with dedicated kiosks. Read the details in our Global Entry basics.

Common mistakes at U.S. entry

• Confusing ESTA with a guarantee of entry. The approval only gets you to the booth; the officer decides.
• Ignoring the “Admit Until” date. Many rely on “90 days” or visa validity – the I-94 is what counts. Retrieve it and note the date.
• Failing to declare food. The ham you packed or fruit from the plane is a classic – declare everything.
• Not reporting cash over US$10,000. Reportable even when combined across the family.
• Mentioning work under ESTA. The Visa Waiver Program allows business meetings but not paid work. Choose the correct purpose – our visa check helps you classify it.

Time-saving tips

• Complete the MPC app before deplaning (ideally while still connected).
• Keep your passport, return ticket and hotel address ready.
• For the biometric photo, look at the camera and remove glasses/hat.
• Answer briefly and honestly; wait until the officer asks.
• Declare when in doubt – honesty at customs always beats a fine.
• Check your I-94 at i94.cbp.dhs.gov after arrival.

Good preparation starts before departure. If you are unsure whether ESTA is enough or you need a visa, and which steps your trip requires, we support you with our services for visas and Global Entry and the quick visa check.