Airport Customs Explained: What to Expect, What to Declare, and How to Get Through Faster

Walking off an international flight into the arrivals hall for the first time can feel like entering a bureaucratic maze. Signs for "Immigration," "Customs," "Nothing to Declare" — and you're jet-lagged, wondering if that wheel of cheese from Paris is about to get you arrested.

Here's everything you need to know about going through airport customs in the United States — step by step, no panic required.

Customs vs. Immigration: They're Not the Same Thing

This is the single biggest point of confusion for international travelers.

Immigration (also called "passport control") is about you. An officer checks your passport, asks why you're visiting, and decides whether you're allowed to enter the country. Everyone clears immigration. No exceptions.

Customs is about your stuff. Officers check what you're bringing in — food, alcohol, gifts, currency, commercial goods — and make sure it's legal and within limits. If you have nothing to declare, you may walk straight through without speaking to anyone.

Think of it this way: immigration asks "should this person be here?" Customs asks "should these items be here?" You always go through immigration first, then customs.

Step-by-Step: What Happens When You Arrive Internationally

Here's the exact sequence at any U.S. airport on an international flight. Layouts vary, but the order is always the same.

1. Deplane and Follow the Signs

Follow signs toward "Arrivals" or "Immigration / Passport Control." You'll be funneled into a large hall with queues.

2. Clear Immigration

You'll speak to a CBP officer, use an APC kiosk, or use Global Entry if you're a member. Basic questions: where you're coming from, purpose of trip, how long you were abroad. Have your passport and visa (if applicable) ready.

3. Collect Your Checked Bags

After immigration, grab your checked luggage at baggage claim. You need it for the next step — even if you're connecting.

4. Clear Customs

Hand your customs declaration form (or show your mobile app QR code) to a CBP officer. Most travelers are waved through in seconds. If an officer wants to inspect your bags, you'll be directed to secondary inspection. Stay calm, answer honestly — it's usually quick.

5. Exit Into the Terminal

If this is your final destination, head to ground transportation. If you're connecting, re-check your bags and go through TSA security for your next flight.

The Customs Declaration Form (CBP Form 6059B)

Every person arriving in the U.S. by air or sea must complete a customs declaration — either on paper (CBP Form 6059B) or through the Mobile Passport Control app. One form per family. Here's what it asks:

• Your full name, date of birth, and country of citizenship
• Your flight number and the country you're arriving from
• Your U.S. address (hotel name and city is fine)
• Whether you're carrying fruits, vegetables, meats, plants, seeds, or soil
• Whether you've been near livestock abroad
• Whether you're carrying more than $10,000 in currency or monetary instruments
• Whether you're bringing commercial merchandise
• The total value of goods you purchased abroad

Fill it out honestly — false statements can result in forfeiture and penalties. Use a blue or black pen and don't leave boxes blank.

Pro tip: Download the Mobile Passport Control app before your trip. Fill out the declaration on your phone, submit a selfie, and get a QR code. You skip the paper form and often get a shorter line. Free, works at 37+ airports.

What You Must Declare at U.S. Customs

The golden rule: when in doubt, declare it. You will never get in trouble for declaring something that turns out to be fine. You can absolutely get in trouble for failing to declare something.

Here's what requires a declaration:

• Goods exceeding $800 in value — anything you purchased abroad (or received as a gift) that pushes your total over the $800 personal exemption
• Food and agricultural products — all fruits, vegetables, meats, plants, seeds, and soil, even if you think they're allowed
• Alcohol beyond duty-free limits — more than 1 liter per person (age 21+)
• Tobacco beyond duty-free limits — more than 200 cigarettes or 100 cigars
• Currency over $10,000 — cash, traveler's checks, money orders, or any monetary instruments totaling more than $10,000 (requires separate FinCEN Form 105)
• Commercial merchandise — anything you plan to sell or use in a business
• Certain medications — controlled substances or prescription drugs in unusual quantities

International trips involve a lot of moving parts — customs forms, declaration limits, duty-free math. Autopilot can handle one piece automatically: it tracks your flight fare after you book and rebooks you at a lower price if one appears. One less thing to stress about.

Duty-Free Allowances for U.S. Travelers

Anything over these limits isn't illegal — you just pay duty on the excess, typically 3-10% of the value above your exemption.

What NOT to Bring Into the United States

Some items are flat-out prohibited, no matter how much you declare or how much duty you're willing to pay.

• Most fresh fruits and vegetables — nearly all whole or cut produce is banned due to pest and disease risks
• Most fresh meats — especially from countries with foot-and-mouth disease or BSE concerns
• Bush meat — any meat from African wildlife, no exceptions
• Plants, soil, and seeds — unless you have a phytosanitary certificate (which most tourists don't)
• Counterfeit goods — fake designer items can be seized and result in penalties
• Certain wildlife products — ivory, certain furs, items from endangered species
• Cuban-origin goods for resale — Cuban cigars are fine for personal use, but not for commercial purposes

What IS generally allowed: commercially canned goods, condiments, vinegar, oils, packaged spices, honey, coffee, tea, and hard cheeses. When in doubt, declare it and let the officer decide.

How Long Does Customs Take?

According to CBP data, about 53% of travelers clear in 15 minutes or less. But averages vary wildly by airport, time of day, and trusted traveler status.

Average Wait Times by Airport (2026)

Peak times — early morning European arrivals, late afternoon Asian arrivals — can push waits past 30 minutes. During holidays, waits at busy airports have stretched past two hours.

Global Entry members typically clear in under 5 minutes. Mobile Passport users shave 10-15 minutes off the standard line.

7 Tips for Getting Through Customs Faster

1. Get Global Entry. $100 for five years, includes TSA PreCheck, and lets you skip the main immigration line. Many credit cards reimburse the fee.
2. Use Mobile Passport Control. Free app, shorter line, no paper form. The next best thing to Global Entry.
3. Fill out your declaration before you land. Flight attendants hand out forms mid-flight for a reason. Don't wait until you're in line.
4. Have your documents ready. Passport, declaration form, visa if applicable — all in hand before you reach the officer.
5. Know what you're declaring. Have a rough purchase total ready. "About $400 in clothing and souvenirs" works fine. Vague answers trigger secondary inspection.
6. Book connections with enough layover time. Allow at least 2 hours for international connections — 3 at major hubs during peak times.
7. Check live wait times. awt.cbp.gov publishes real-time wait times by airport.

While you can't control the customs line, you can control your flight costs. Autopilot monitors your booked flights and automatically rebooks you at a lower fare if prices drop — saving you money without any effort on your part.

U.S. Preclearance: Clear Customs Before You Even Board

At certain airports abroad, you can clear U.S. customs and immigration before you board. When you land in the U.S., you walk straight into the terminal as a domestic arrival. No lines, no waiting.

CBP operates preclearance at 16 locations in 6 countries: Dublin and Shannon (Ireland), Nassau (Bahamas), Aruba, Bermuda, Abu Dhabi (UAE), and 10 Canadian airports including Toronto Pearson, Vancouver, Calgary, and Montreal.

Dublin and Shannon are the only preclearance locations in Europe. If you're routing through any of these airports, factor it into your booking — it can save an hour or more at your U.S. arrival.

Customs on Connecting Flights: The First Port of Entry Rule

If you're flying internationally into the U.S. with a domestic connection, you clear customs at your first U.S. airport — not your final destination.

Flying London to Chicago via New York? You'll clear immigration and customs at JFK, collect bags, re-check them, go through TSA, then board your connection. The U.S. has no sterile international transit areas — unlike most European and Asian hubs.

This is why minimum connection times matter. Airlines usually build in enough time, but tight connections at busy airports during peak hours can get stressful. Build in a buffer.

Planning an international trip with connections? That's a lot of logistics to track. Autopilot watches your fare after booking and handles rebooking if a lower price appears. It's one less variable in a trip with plenty of them.

Frequently Asked Questions

What happens if you don't declare something at customs?

Consequences range from a warning to serious legal trouble. First-time agricultural violations carry a $300 fine ($500 for repeats). Undeclared goods can be seized with penalties equal to their domestic value. Failing to declare currency over $10,000 can mean full confiscation and fines up to $500,000. Intentional smuggling can lead to criminal charges. Bottom line: always declare — it costs you nothing if the item turns out to be fine.

Do U.S. citizens go through customs?

Yes. Every person entering the United States — citizens, permanent residents, and visitors — must clear both immigration and customs. U.S. citizens typically have shorter waits, but the process is the same for everyone.

Can I use my phone at customs and immigration?

Generally yes, but keep it put away when you're at the officer's booth. Some airports ask you not to take photos in the immigration hall. If you're using Mobile Passport Control, have your QR code ready.

How much alcohol can I bring back to the U.S.?

The duty-free limit is 1 liter per person (you must be 21 or older). You can bring more, but you'll owe duty on anything beyond the exemption. If you're returning from an eligible Caribbean country, you get 2 liters duty-free as long as at least one bottle was produced there.

Do I have to declare prescription medications?

Standard prescriptions for personal use generally don't need to be declared, as long as they're in original labeled containers in reasonable quantity. Controlled substances, large quantities, or medications not FDA-approved may require declaration. When in doubt, carry your prescription documentation and declare them.

What's the difference between "Nothing to Declare" and the red channel?

Many airports use a two-channel system. The green channel ("Nothing to Declare") is for travelers within duty-free limits who aren't carrying restricted items. The red channel ("Goods to Declare") is for everyone else. Trying to slip through the green channel with declarable goods is a bad idea and can result in penalties.

Do I need to clear customs if I have a connecting flight through the U.S.?

Yes. The U.S. requires all international passengers to clear immigration and customs at their first port of entry, even if you're just connecting. You'll collect bags, clear customs, re-check bags, and go through TSA security. Allow at least 2 hours.

Is Global Entry worth it?

If you travel internationally more than once a year, absolutely. At $100 for five years, it includes TSA PreCheck and cuts your customs wait from 20+ minutes to under 5. Many travel credit cards reimburse the fee, making it effectively free.

Disclaimer: This article is for informational purposes only and does not constitute legal, financial, or professional travel advice. Customs regulations change frequently. Always check the latest rules on the official CBP website before traveling. Autopilot is a fare-tracking and rebooking service and is not affiliated with U.S. Customs and Border Protection.