For domestic flights, the most common minimum layover is 60 minutes, though 90 minutes to 2 hours is safer when you factor in delays, terminal changes, or tight schedules. Plan for at least an hour for a same-airline connection, and stretch that to 90 minutes or more if you’re checking bags, have mobility concerns, or are flying through a busy hub.
Factors to Consider When Determining Layover Length
Your ideal layover depends on more than just the airport’s name. Here’s what to weigh before you book:
- Airport Size and Layout: Larger airports with multiple terminals or long walking distances between gates demand more time. A compact airport with a single terminal can often be crossed in 15 minutes, while a sprawling hub might take 45 minutes just to reach your next gate.
- Flight Schedule and Punctuality: If your first flight has a history of delays—check the airline’s on-time stats or apps like FlightAware—or if you’re traveling during peak hours (early morning or late afternoon), add buffer time. A 60-minute layover can vanish quickly if your inbound is 30 minutes late.
- Immigration and Customs Procedures: Even on domestic itineraries, some airports have security checkpoints that require re-screening for every connection (e.g., when arriving from a non-preclearance international flight). For domestic-to-domestic, you’ll usually stay airside, but if your itinerary includes a stop where you must re-enter the terminal, factor in 30–45 extra minutes.
- Personal Mobility and Comfort: If you walk slowly, travel with kids, or need wheelchair assistance, plan for more time. A 60-minute minimum assumes average walking speed and no significant mobility aids. For peace of mind, add 30 minutes.
- Exploration and Sightseeing: If you want to leave the airport during a layover, you’ll need at least 4–6 hours for a city visit, plus time to clear security again. For most domestic connections, it’s not realistic to leave the airport unless the layover is explicitly long.
These factors apply to every airport, but specific hubs have their own quirks. Below are documented recommendations for major U.S. airports, based on typical operations as of the early 2020s.
Recommended Layover Lengths for Different Airports
While 60 minutes is the industry baseline for domestic connections, certain airports are more forgiving than others. Here’s what to expect at five busy U.S. hubs:
- Hartsfield-Jackson Atlanta International Airport (ATL): As one of the world’s busiest airports, ATL often requires a minimum layover of 60-90 minutes for domestic connections due to its expansive layout and high passenger traffic. The airport’s train system helps, but gates can be far apart.
- Denver International Airport (DEN): With its efficient layout and connectivity, a layover of at least 60 minutes is typically sufficient for domestic flights at DEN. The terminal is compact, and the train between concourses runs frequently, but 45 minutes is risky if your arrival gate is at the far end of Concourse B.
- Chicago O'Hare International Airport (ORD): Given its size and occasional congestion, a layover of 60-90 minutes is advisable for domestic connections at ORD to accommodate potential delays and terminal transfers. The airport’s shuttle buses and moving walkways help, but weather delays are common in winter.
- Dallas/Fort Worth International Airport (DFW): DFW’s size and diverse terminals make a layover of 60-75 minutes ideal for domestic flights, allowing ample time for customs clearance and terminal changes if needed. The Skytrain connects all terminals, but you’ll still walk a lot.
- Seattle-Tacoma International Airport (SEA): A layover of at least 60 minutes is generally sufficient for domestic connections at SEA, offering a balance between efficient transfers and contingency for unexpected delays. The airport’s single terminal is easy to navigate, but the South Satellite can add walking time.
These figures are general guidelines. Your exact layover may need to be longer if you’re flying on a smaller regional jet (which often parks at remote stands requiring bus transfers) or if you’re traveling at peak times like Thanksgiving or Christmas.
Tips for Making the Most of Layover Time
Once you’ve booked a sensible layover, here’s how to use the time without stress:
- Utilize Airport Amenities: Most airports have lounges, restaurants, and shops. If you have a credit card that includes lounge access, or you’re willing to pay for a day pass, you can get a quiet seat, free snacks, and better Wi-Fi. For example, many Delta Sky Clubs and United Clubs offer day passes for around $50–60, but confirm availability before you go.
- Stay Informed with Flight Status Updates: Download your airline’s app or use the airport’s information screens. Set alerts for gate changes—these often happen 30–45 minutes before departure. If your layover is tight, tell a flight attendant on your first leg; they can sometimes radio ahead to hold the connecting flight.
- Stretch Your Legs with Airport Exercise: Some airports, like Portland (PDX) and Singapore Changi, have yoga rooms or walking paths. Even a brisk 10-minute walk through the terminal helps. If you have a longer layover, look for the airport’s designated smoking areas or quiet rooms—these are often less crowded.
- Explore Airport Art and Exhibits: Many U.S. airports have rotating art installations. For example, San Francisco (SFO) has a museum in Terminal 2, and Denver (DEN) has the famous mustang sculpture outside. A quick walk to see public art is a free way to break up the wait.
- Connect with Complimentary Wi-Fi: Most airports offer free Wi-Fi, but it’s often slow. If you need to work, check if your airline or credit card includes premium Wi-Fi. Otherwise, use the time to download podcasts or movies for the next leg.
- Consider Day Passes for Airport Lounges: If you have a long layover and want a shower or a quiet nap, a lounge day pass can be worth it. Some lounges, like The Club or Airspace, sell passes for $40–50. You can book them in advance online or through apps like LoungeBuddy.
- Research Nearby Attractions for Longer Layovers: If you have 5+ hours, check if the airport has a “sleeping pod” or a nearby hotel. For example, Dallas/Fort Worth has a Hyatt inside the terminal, and Seattle’s airport has a hotel connected by skybridge. For a true city visit, only attempt it if you have 6+ hours and no checked bags—security lines can be unpredictable.
One more thing: if you’re flying Southwest, you can add a trip to your Southwest account to track your points and boarding position. For American Airlines, you can add a trip to American airlines account to see your AAdvantage miles post faster. These tools help you manage your itinerary if you’re juggling multiple connections.
Conclusion
Layovers don’t have to be a source of anxiety. By starting with a 60-minute minimum for domestic connections and extending to 90–120 minutes when you’re checking bags, traveling with kids, or flying through a hub known for delays, you can build in enough buffer without wasting hours. Pay attention to the specific airport’s layout—Denver and Seattle are forgiving, while Chicago and Dallas require a bit more time. And once you’re at the gate, use the tips above to turn idle time into a productive break. A little planning goes a long way: you’ll arrive at your final destination relaxed, on time, and ready to go.
