A connection is a trade: your time and a bit of risk for a lower fare. Sometimes the trade is excellent — $150 saved for 90 extra minutes. Sometimes it is a terrible deal that costs a night in a hub-city hotel. Here is how to judge it, based on the routes and hubs that dominate US travel.
How much a connection saves
On busy nonstop routes — New York to Los Angeles, Chicago to Miami, Dallas to Denver — one-stop itineraries typically price 15 to 30 percent below the nonstop. On transatlantic routes the gap can be larger: connecting through Dublin, Lisbon, Reykjavik or a US hub often saves $100 to $250 round trip. Connections save the least on short routes, where the extra segment adds almost as much cost as it removes.
Our results show nonstop and connecting options side by side with the price difference, so you can see the exact trade for your dates rather than guessing.
How long a layover should be
Airlines sell connections as short as 30 to 45 minutes domestically, which are legal but leave no margin. A safer rule: 60–90 minutes for a domestic connection at a large hub, 90 minutes to two hours when connecting from a domestic to an international flight, and two to three hours when arriving from abroad into the US, because you clear immigration and customs and re-check bags before the onward flight.
If the two flights are on one ticket and you miss the connection because the first flight was late, the airline must rebook you at no charge. If you booked two separate tickets, you are on your own — which is why we combine flights on a single itinerary wherever the airlines allow it.
- Domestic to domestic: 60–90 minutes
- Domestic to international: 90 minutes to 2 hours
- International arrival into the US: 2–3 hours (immigration, customs, bag re-check)
- Preclearance airports (Dublin, Shannon, Abu Dhabi, Aruba, Nassau, Canadian hubs): arrive as a domestic passenger, so 60–90 minutes suffices on arrival
Hubs that connect well — and badly
Some hubs make connections painless: Atlanta's Plane Train links all concourses in minutes; Denver, Salt Lake City, Detroit and Charlotte are compact or well designed; Dallas/Fort Worth's Skylink is fast. Others are notorious: JFK and LAX often require leaving security to change terminals, Chicago O'Hare's Terminal 5 is far from the others, and Newark's terminals are connected only by bus. Internationally, Amsterdam, Singapore, Doha and Zurich are easy; Heathrow's terminal transfers and Paris CDG's size deserve extra time.
When to pay for the nonstop
Take the nonstop, even at a premium, when any of these apply.
- The saving is under $60 per person or under 10 percent of the fare
- You are traveling with small children or a mobility limitation
- You have a fixed arrival deadline the same day
- The connection is in a winter-weather hub in December–February
- The connecting itinerary is 4+ hours longer than the nonstop
Making the most of a layover
A long connection can be an asset. Icelandair, TAP, Turkish and Emirates all sell free or cheap stopovers of one to several days. Even a five-hour layover is enough to see downtown Atlanta (20 minutes by train), central Amsterdam (15 minutes) or Singapore's Jewel and its indoor waterfall without leaving the airport. Lounges via day passes or credit cards turn a three-hour wait into a shower and a meal.
Frequently asked questions
Is a 45-minute layover enough?
It is legal and usually works at compact hubs on the same airline, but leaves no margin for a late inbound flight. Choose 60–90 minutes if the option exists for a similar price.
Do I have to collect my bag during a connection?
Not on a single domestic or international-departing ticket — bags are checked through. On arrival into the US from abroad you must collect bags, clear customs and re-check them, even if you are connecting on the same airline.
What happens if I miss a connection?
If both flights are on one ticket, the airline rebooks you free on its next available flight and, for a controllable cause, provides meals or a hotel. On separate tickets you must buy a new flight; travel protection may reimburse it.
Written by Air1 Tickets Editorial Team. First published ; fees, rules and prices verified as of the update date above. Airline policies change: always confirm the fare rules shown at checkout for your specific ticket.
