Here’s How Early You Need To Arrive To Catch Your Flight at 50 U.S. Airports

The sinking feeling of dread you get when you hear the final boarding call before you reach your gate is nothing short of awful. Whether you consistently run late or have never missed a flight in your life, you may be wondering, “How early should I get to the airport?”

Between bustling holiday crowds and outlandishly-long security lines, a little pre-planning can go a long way. Plus, who wants to miss holiday dinner instead of spending a few extra hours (or days) waiting for the next flight out? 

In this study, we analyzed 15 ranking factors at 50 major U.S. airports, such as airport size, number of passengers, number of bars, average TSA wait times, and more to find the airports where it’s most important for passengers to arrive early. Then, based on this airport ranking, we determined how early you should arrive at each airport to catch your flight.

Key Findings

If you’re wondering how early should you get to the airport, you’re not alone. Planning out your arrival time can help you decide whether to pack your suitcase the day of or the night before. It can also help you decide whether you have any time to spare after arriving at the airport to relax with a drink at the airport bar. Check out our quick key findings below to discover which airports you’ll be spending the most and least time in before boarding.

• Due to average TSA wait times, passenger congestion, airport staffing, and the size of the airport (among other factors), passengers need to arrive at Chicago O’Hare International Airport (ORD) earlier than all other airports in our ranking to catch their flight –– over 3 hours ahead of time.
• Los Angeles International Airport (LAX) and John F. Kennedy International Airport (JFK) rank second and third in our ranking of the best airports for passengers to arrive early. Passengers need to budget nearly 3 hours for both airports to make their flights.
• John Glenn Columbus International Airport (CMH) falls at the bottom of our ranking, meaning passengers don’t need to arrive at this airport as early as they would at other higher-traffic airports.

What Time Should You Get to the Airport?

What time you arrive at an airport should depend on large and busy the airport is. Consider how many gates the airport has and whether or not it’s located in a major metro area. There are certain ones you’ll need to show up at earlier than others to catch your flight. Chicago O’Hare International Airport (ORD) is first on our list, requiring passengers to arrive 3 hours and 4 minutes early to board smoothly. In 2021, this airport boasted a record-breaking ​​54,020,399 passengers. It also has a whopping 193 gates — more than any other airport in our study. What’s more, the airport is understaffed. O’Hare has 3,606 badged airport employees per square mile, 9% below the national average.

Coming in at number 5 is ​​Dallas Fort Worth International Airport (DFW), which requires passengers to arrive 2 hours and 50 minutes before their scheduled departure time. The airport spans 17,207 acres, so wear your comfortable walking shoes!

Jumping down to spot number 8 on our list is Charlotte Douglas International Airport (CLT), which requires passengers to arrive 2 hours and 45 minutes ahead to catch their flight on time. Obstacles like a 19.13-minute average TSA wait time (39% longer than the national average) may stand in the way of a quick boarding experience.

How Early Should I Get to the Airport?

How early you should get to the airport depends on several factors including TSA wait times, congestion, and the size of the airport. You’ll want to arrive 3 hours early for large, busy airports. For example, passengers should arrive at Los Angeles International Airport (LAX) 2 hours and 59 minutes before their scheduled departure. With over 8 terminals, 146 gates, and an overwhelming amount of car traffic outside the airport, it’s no wonder this airport can be a maze to navigate.

George Bush Intercontinental Airport (IAH), located in Houston, needs passengers to show up 2 hours and 55 minutes ahead of time. This airport is the equivalent of a small college at 10,000 acres and welcomed 31,866,308 passengers through its gates in 2021. 

Passengers should arrive at San Francisco International Airport (SFO) 2 hours and 45 minutes early to wind through the TSA security lines with time to spare. Plus, if you get there early, you can visit the Aviation Museum and Library (yep — that’s a real museum inside an airport!). 

On the flip side, airports like Kansas City International Airport (MCI) only require you to show up 1 hour and 16 minutes ahead of schedule for a domestic flight. Who says you can’t stop and smell the roses at the airport?

Zooming In on Airport Bars, Acreage, Employees, and TSA Wait Times

Who wouldn’t want a martini to take the edge off a long flight? Airports like LaGuardia Airport (LGA) could give you a food coma or an alcohol-induced buzz where you could lose track of time and run the risk of missing your flight. LaGuardia has 59 restaurants/bars, which may not seem like a lot at first glance; however, when considering the airport’s small size, it boasts 61.46 restaurants/bars (per square mile).

Denver International Airport (DEN) can help you get your steps in, as it spans 33,531 acres (more than any other U.S. airport), which creates plenty of opportunities to walk in circles and maybe even miss a connecting flight or 2. 

When it comes to long lines slowing you down, Louis Armstrong New Orleans International Airport (MSY) takes the cake, with an average TSA wait time of 19.68 minutes — 43% longer than the national average.

Full Data

Interested in diving deeper into the numbers or wanting to see how your local airport stacks up if it’s not listed within the above charts? We’ve compiled our full data study for all 50 U.S. airports analyzed into the interactive table below. 

Methodology

We analyzed 50 of the largest U.S. airports on 15 ranking factors and assigned each one a weighted score of 0 to 10. We determined each airport’s total score out of 50 from the total of its individual factor scores, which were weighted according to their impact on missing a domestic flight. Higher scores indicate airports with a greater need to arrive early. The ranking factors and their respective weights and sources are listed below.

In this study, the airport size (in square miles) for each airport was calculated by subtracting the mileage of runways from the total land area. We collected each airport’s total acreage and runway length using data from the Federal Aviation Administration (FAA).

The pre-flight arrival time for each airport is an index calculated from each airport’s total airport score using the standard 2 hours ahead of time as our median. For each airport, we calculated the percentage change from the median airport score. We then multiplied that percentage by 2 hours (120 minutes) to determine the pre-flight arrival time (in hours and minutes) for each airport. The pre-flight arrival time is how early passengers should arrive before their domestic flights.

Final Thoughts

Deciding how early should you get to the airport can be a challenge. If you come up too short, then you may risk missing your flight. Airports like Chicago (ORD) and Los Angeles (LAX) may not be the best to fly out of if you want to make it home to enjoy a cup of eggnog by the fire. Whether or not you like flying, certain airports like Kansas City (MCI) and Columbus (CMH) can help you get through security quickly and boarding in no time.