Are all terminals in Boston Logan connected?

The terminals are connected to the central parking garage by a walkway system. More than 40 airlines fly nonstop to more than 100 domestic and international destinations including 50 non-stop international destinations. The number of destinations and carriers is growing and ever-changing.



As of early 2026, Boston Logan (BOS) is nearing the completion of its "all-connected" terminal project. While all terminals (A, B, C, and E) have long been connected by a pre-security shuttle bus and walkways, the goal has been airside (post-security) connectivity. Terminals B, C, and E are already connected airside, allowing passengers to walk between them without re-clearing security. The final link, the Terminal A–B Connector, is a major project designed to bring Terminal A into this secure network. For 2026 travelers, this means easier access to a wider range of dining and lounges regardless of your departure gate. However, because some sections are quite long, a shuttle bus still operates between terminals for those who prefer not to walk. It's always best to check the latest airport maps upon arrival to see if your specific gate-to-gate connection can now be made entirely within the secure zone.

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International Arrivals Boston Logan International Airport is served by some 50 international destinations. Most of Boston Logan's international arrivals come through Terminal E for U.S. Customs and Border Protection processing.

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Massport announced back in 2006 that Terminal D would be absorbed into Terminal C as part of a wider effort to assist Logan's passengers to navigate throughout the airport.The initial plan called for Terminal E, the International Terminal, to be renamed Terminal D.

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You can walk between the two but they are not connected, so you must leave the secured area.

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Most airports that have many international flights have a separate international terminal. However, it is possible for both domestic and international flights to take off out of the same terminal.

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Do you have to go through security again for connecting flight? Yes, passengers usually have to re-clear security for connecting flights. It is recommended that travelers allow enough extra time before their connecting flight to pass through security and customs again.

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Atlanta Hartsfield-Jackson International Airport remains the busiest airport in the world with 5.2 million seats in September 2023. The composition of the Global Top 10 Busiest Airports is also the same as last month but there are a few changes to the rankings.

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United Airlines uses Terminal B at Boston Logan International Airport. Most United Airlines flights depart and arrive at Terminal B, but some codeshare flights may depart from Terminal E. Passengers can easily check in for their flight, find their gate, and relax before their flight to Terminal B.

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Allow enough time: Customs can be time-consuming, especially during peak travel periods. Make sure you allow enough time to clear customs and get to your connecting flight. As a general rule, it's best to allow at least two hours for international layovers.

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Most airlines recommend arriving at the airport three hours before departure for international flights. It's common for international flights to start boarding earlier than domestic flights (the aircraft are often larger and have higher passenger capacities), which accounts for the earlier recommendation.

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When do you go through customs on international flights? Usually, you go through customs when you exit the airport at your final destination. However, if you have a layover in a different city in your destination country, you may need to go through customs before your connecting flight.

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