How Do I Connect From an International Flight to a Domestic Flight at a US Hub Airport?

Summary

The steps

1. 1

   Prepare Before You Land: Declaration Forms and App Checks

   The best time to prepare for your international-to-domestic connection is on the aircraft, before you land. Open your airline app and check whether your domestic connecting flight is on time and whether your gate has changed. If your inbound flight is running late and your connection looks tight, check whether the airline has already rebooked you automatically - many major US carriers do this proactively when a delay makes a connection unlikely.

   Complete your customs declaration form on the aircraft. Most US airports support the CBP One app and Automated Passport Control (APC) kiosks, both of which allow eligible travelers to submit declaration information digitally. Completing this step in the air or at a kiosk reduces the time you spend at the officer window. The CBP One app is available for iOS and Android and is maintained by US Customs and Border Protection.

   After deplaning, follow overhead signs for Arrivals or US Customs and Border Protection. At large hub airports, this route is clearly marked and physically separated from domestic passenger flow. Have your passport, any required visa or Electronic System for Travel Authorization (ESTA), and your declaration form or CBP One receipt ready before you reach the hall.

   What to have ready at the CBP hall:

   • Passport (valid for at least six months beyond your travel dates for most destinations)
   • Visa or ESTA confirmation (ESTA must be obtained before departure, not on arrival)
   • Completed customs declaration form or CBP One app receipt
   • Your domestic boarding pass (digital or printed)

   Do this

   Check your airline app for gate changes and automatic rebooking before the aircraft lands.,Complete your customs declaration via the CBP One app or on the paper form during the flight.,Follow overhead 'Arrivals' or 'CBP' signs immediately after deplaning.,Have your passport, visa or ESTA, and declaration form ready before reaching the CBP hall.

   Example

   A traveler on a transatlantic flight completes their CBP One declaration at cruising altitude, checks the airline app on approach, and confirms their domestic connection is on time. They deplane with documents in hand and proceed directly to the APC kiosk, skipping the paper-form queue entirely.

   Best practice

   ESTA authorization for Visa Waiver Program travelers must be obtained before departure from your origin country - it cannot be applied for on arrival. Confirm your ESTA is valid and linked to your current passport before you travel. ESTA applications are processed at cbp.dhs.gov/ESTA.
2. 2

   Clear CBP: Kiosk, Officer Interview, and Declaration Rules

   Clearing US Customs and Border Protection is required under 19 U.S.C. section 1459 for every person arriving in the United States on an international flight. There are no exceptions based on nationality, airline, or connection type.

   Global Entry members proceed to dedicated kiosks, scan their passport and fingerprints, answer declaration questions on screen, and receive a printed receipt. They then present the receipt to a CBP officer for a brief final check. Global Entry is administered by CBP under the Trusted Traveler Program framework; enrollment requires a background check, a USD 100 application fee for a five-year membership (current as of 2024), and an in-person interview at a CBP enrollment center. Global Entry membership also includes TSA PreCheck benefits.

   All other travelers use APC kiosks where available, or proceed directly to a CBP officer. The officer will review your travel documents, ask about the purpose of your visit and what you are bringing into the country, and clear you to proceed.

   Declaration rules that matter:

   • US residents returning from abroad are generally allowed USD 800 in goods duty-free per trip under 19 CFR Part 148.101.
   • Currency or monetary instruments over USD 10,000 must be declared under 31 U.S.C. section 5316.
   • Under-declaring can result in fines or seizure under 19 U.S.C. section 1592.
   • CBP officers have authority under 19 U.S.C. section 482 to inspect baggage and, under the border search exception, to inspect electronic devices at the port of entry without a warrant.

   If your connection is tight, tell the officer - they can sometimes direct you onward efficiently, at their discretion.

   Do this

   Global Entry members: proceed to the dedicated kiosk lanes.,All others: use an APC kiosk if available, or join the officer queue.,Declare all goods, food items, and currency over USD 10,000 accurately.,Tell the officer if your domestic connection is imminent.

   Example

   A US citizen returning from a two-week trip abroad declares a bottle of wine and a watch purchased overseas. The officer confirms the items fall within the USD 800 duty-free allowance under 19 CFR Part 148.101 and clears the traveler to proceed to baggage claim.

   Best practice

   Know the duty-free allowance and declaration rules before you travel. The CBP 'Know Before You Go' guide at cbp.gov covers current thresholds and prohibited items. Arriving prepared means fewer questions at the officer window and a faster clearance.
3. 3

   Collect Your Checked Bags from the International Carousel

   After clearing the CBP officer, proceed to the international baggage claim area. Even if your checked bags are tagged all the way to your final domestic destination, you must collect them here. CBP authority under 19 U.S.C. section 1496 requires that arriving international baggage be available for inspection before it enters the United States. This step is not optional and cannot be waived by your airline.

   Baggage claim screens in the international arrivals hall display which carousel your flight's bags are assigned to. Match your flight number on the screen to the carousel number and proceed there.

   If a bag does not appear: Report it immediately to the airline's baggage service desk in the arrivals hall before you leave the baggage claim area. Under DOT rules at 14 CFR Part 254, airlines must acknowledge baggage liability and begin a trace. Do not proceed to the re-check desk with a missing bag report unresolved - the re-check agent will need to know the bag's status before they can process your connection.

   Do this

   Check the baggage claim screens for your flight number and assigned carousel.,Collect all checked bags before proceeding to the re-check desk.,If a bag is missing, report it to the airline baggage desk in the arrivals hall before leaving.,Keep your baggage claim tags: you will need them at the re-check desk and for any trace report.

   Example

   A traveler arriving from Tokyo on a connection to a domestic flight finds their two checked bags on the carousel, collects them, and proceeds to the airline's re-check counter with bags, boarding passes, and baggage claim tags in hand.

   Best practice

   Place a distinctive luggage tag or bright strap on your bags before travel so you can identify them quickly on a busy international carousel. At large hub airports, multiple international flights may be arriving simultaneously, and bags from different flights can end up on adjacent carousels.
4. 4

   Re-Check Your Bags at the Airline Transfer Desk

   Once you have collected your bags and exited the CBP inspection area, look for the airline's baggage re-check or transfer desk. At most large hub airports, this desk is located just outside the international baggage claim hall, before the exit to the public arrivals area. It is staffed by your airline or its ground handling agent.

   Present your domestic boarding pass and your collected bags. The agent will re-tag your bags for your connecting domestic flight and return them to the baggage system. You will receive new baggage claim tags showing your final destination. Photograph these tags before you leave the desk.

   Connecting on a different airline? Interline baggage transfer depends on whether a bilateral interline agreement exists between the two carriers. These agreements are not governed by a single federal standard - they vary by carrier pair. If no agreement applies, you may need to exit the terminal, re-check in at the departing airline's check-in counter, and re-enter security. Confirm this with both airlines at the time of booking, not at the airport.

   Do this

   Locate the airline re-check or transfer desk just outside international baggage claim.,Present your domestic boarding pass and all collected bags.,Confirm new baggage claim tags are issued and photograph them.,If connecting on a different airline, verify interline bag transfer arrangements before travel.

   Example

   A traveler arrives on an international flight and connects to a domestic service on the same airline. The re-check agent scans the bags, attaches new tags showing the domestic destination, and confirms the bags are checked through. The traveler proceeds to TSA with only their carry-on.

   Best practice

   If the re-check desk is unstaffed or you cannot locate it, go to the airline's main check-in counter in the departures hall. Do not leave the airport without re-checking your bags, or they will not travel with you.
5. 5

   Pass Through TSA Security for Your Domestic Connection

   After re-checking your bags, you are in the public landside area of the airport. To reach your domestic departure gate, you must pass through a standard TSA security checkpoint. The rules at this checkpoint are identical to those at your origin airport.

   Standard screening requirements (49 CFR Part 1540):

   • 3-1-1 liquids rule: containers of 3.4 oz (100 ml) or less, in one quart-sized clear bag, one bag per person
   • Laptops and large electronics removed from bags and placed in a tray
   • Shoes, belts, and jackets removed (unless you have TSA PreCheck)

   If your domestic boarding pass carries your TSA PreCheck Known Traveler Number (KTN), you may use a PreCheck lane at the checkpoint if one is available. In a PreCheck lane, you generally do not need to remove shoes, laptops, liquids, belts, or light jackets. CLEAR, the biometric identity verification service operating under TSA's approved vendor framework, can expedite the identity-check step at participating checkpoints, though it does not replace the physical screening process itself.

   Follow signs from the re-check desk area to the domestic departures security checkpoint. At large hub airports, the international arrivals hall and the domestic departure security checkpoints may be in different buildings or on different levels.

   Do this

   Follow signs from the re-check desk to the domestic departures TSA checkpoint.,Prepare your carry-on for screening before you reach the tray belt: liquids bag out, laptop accessible.,Check your domestic boarding pass for your KTN to use a PreCheck lane.,If your connection is tight, inform a TSA officer at the checkpoint entrance.

   Example

   After re-checking bags, a traveler follows signs to the domestic terminal security checkpoint, presents their boarding pass showing TSA PreCheck, and uses the dedicated lane, removing only shoes and a jacket rather than unpacking the full bag.

   Best practice

   Reorganize your carry-on on the aircraft before landing if possible. Knowing exactly where your liquids bag and laptop are before you reach the checkpoint saves time at the tray belt and avoids a bag pull for re-screening.
6. 6

   Reach Your Domestic Gate and Confirm Real-Time Gate Information

   After clearing TSA security, you are in the domestic departure zone. Check the airport's flight-information display systems (FIDS) immediately for your domestic flight's current gate and status. Gate assignments change frequently at large hub airports - the gate printed on your boarding pass may have changed by the time you clear customs and security.

   How to find your gate reliably:

   • Check FIDS screens by flight number, not destination city - multiple flights to the same city may operate on the same day.
   • Open your airline's mobile app for live gate assignments and push notifications.
   • If the gate is not yet posted, check back on FIDS every few minutes as departure time approaches.
   • Ask a gate agent or airline staff member if you cannot locate your flight.

   At some large hub airports, the domestic concourses are connected by an inter-terminal train or automated people mover (APM) that runs within the secure zone. Once past TSA, you can use these airside connections to move between concourses without re-clearing security. At Hartsfield-Jackson Atlanta International Airport (ATL), the domestic concourses are linked by an underground APM that runs airside, allowing passengers to move between concourses after clearing security.

   Do this

   Check FIDS screens immediately after clearing TSA for your current gate and flight status.,Open your airline app and confirm the live gate assignment.,Search FIDS by flight number, not destination city.,Use any airside inter-terminal train or people mover to reach your concourse efficiently.

   Example

   A traveler clears TSA at the domestic checkpoint, checks the FIDS, and sees their flight has moved from Gate D12 to Gate D28. They walk directly to D28 rather than the gate on their boarding pass, arriving with time to spare.

   Best practice

   If the gate is not yet posted on the FIDS, check back every few minutes as departure time approaches. Gates for domestic connections are sometimes not assigned until the inbound aircraft has landed and been assigned a stand.
7. 7

   Manage a Tight Connection Window on an International-to-Domestic Itinerary

   International-to-domestic connections require more steps than domestic-to-domestic connections. Before you book, check whether your airline considers the connection time sufficient given the mandatory CBP, baggage, and TSA steps at your specific hub airport. Airlines publish minimum connection times (MCTs) for their hubs, and booking a connection below the MCT is a risk the traveler carries - the airline is not obligated to delay the connecting flight.

   If your inbound flight is delayed:

   • Check your airline app before landing for automatic rebooking - many major US carriers proactively rebook passengers when a delay makes a connection unlikely.
   • If not rebooked, contact the airline by phone or in-app chat as soon as possible - do not wait until you reach the domestic gate.
   • Alert a CBP officer in the arrivals hall immediately on arrival - officers can sometimes direct tight-connection passengers to a shorter processing lane, at their discretion.
   • Ask any airline staff member in the international arrivals hall for assistance - some hub airports station airline representatives there specifically for this purpose.

   Under US DOT guidelines (Fly Rights, 14 CFR Part 250), if a delay or cancellation is within the airline's control, passengers are generally entitled to rebooking on the next available flight at no additional charge. For delays outside the airline's control, such as weather, policies vary by carrier and are set out in the airline's Contract of Carriage. Ask for a confirmed seat on the next flight, not just a standby listing, when the delay is within the airline's control.

   Practical booking rule: Choose connection times that comfortably exceed the airline's published MCT for that hub, particularly at the largest hub airports where the distance between international arrivals and domestic gates can be significant. A longer layover is a far smaller inconvenience than a missed connection and the rebooking process that follows.

   Do this

   Before booking, confirm your connection time meets or exceeds the airline's published MCT for that hub.,Enable airline app push notifications before departure so you receive rebooking alerts automatically.,Check the app for automatic rebooking before your international flight lands.,Alert CBP officers and airline staff immediately on arrival if your connection is at risk.,Ask for a confirmed seat on the next flight, not standby, if the delay is within the airline's control.

   Example

   A traveler's inbound international flight lands 50 minutes late. Before deplaning, they check the airline app and find they have been automatically rebooked on a domestic flight three hours later. They proceed through CBP and re-check without urgency, then go to the new gate.

   Best practice

   Keep your airline's customer service phone number saved in your phone before you travel. During irregular operations at a large hub, phone queues are often shorter than in-person desk queues.

Why International-to-Domestic Connections Are Different From Every Other Connection

What This Guide Does Not Cover

About Airport Online

FAQ

Do I have to go through US Customs even if I am just connecting to a domestic flight?

Yes, without exception. Every person arriving in the United States on an international flight must clear US Customs and Border Protection under 19 U.S.C. section 1459, regardless of nationality, airline, or onward destination. You cannot bypass CBP to reach a domestic connection, even if your checked bags are tagged through to your final destination. This rule applies at every US hub airport.

Do I need to collect my checked bags before my domestic connection after an international flight?

Yes. After clearing CBP, you must collect your checked bags from the international baggage carousel, even if they are tagged to your final domestic destination. CBP authority under 19 U.S.C. section 1496 requires that arriving international baggage be available for inspection. You then carry the bags to the airline re-check desk, where they are re-tagged for your connecting flight. Skipping this step will result in your bags not making your connection.

Will I need to go through TSA security again after clearing US Customs?

Yes. After clearing CBP and re-checking your bags, you must pass through a standard TSA security checkpoint to enter the domestic departure area. The 3-1-1 liquids rule applies under TSA regulations at 49 CFR Part 1540. If you hold TSA PreCheck, your Known Traveler Number should appear on your domestic boarding pass, allowing use of a PreCheck lane where available at that checkpoint.

What should I do if my international-to-domestic connection is very tight?

Before deplaning, check your airline app for automatic rebooking. If you have not been rebooked, notify a CBP officer in the arrivals hall that your connection is imminent - officers can sometimes direct tight-connection passengers to a shorter processing lane, at their discretion. Alert an airline representative at the transfer desk as well. Acting within the first few minutes after landing gives you the most options for making the flight or securing a confirmed seat on the next one.

How do I find my domestic departure gate after clearing customs and re-checking my bags?

After re-checking your bags and clearing TSA security, check the airport's flight-information display systems (FIDS) for your domestic flight's current gate and status. Also check your airline's mobile app, which shows live gate assignments and pushes gate-change alerts. Gate assignments change frequently at large hub airports, so always verify on FIDS or the app after clearing security rather than relying on the gate printed on your boarding pass.

What is Global Entry and how does it speed up the CBP process for connecting travelers?

Global Entry is a CBP Trusted Traveler Program that allows pre-approved travelers to use dedicated kiosks on arrival in the US, bypassing the standard officer queue. Members scan their passport and fingerprints at the kiosk, answer declaration questions on screen, and receive a receipt to present to a CBP officer for a brief final check. Enrollment requires a CBP background check, an in-person interview at a CBP enrollment center, and a USD 100 application fee for a five-year membership. Global Entry membership also includes TSA PreCheck benefits.