For a 9:30 AM international flight and a 60-minute trip, leave home at 5:30 AM
Start from the departure time on your boarding pass. Subtract the time you want to be at the airport, the time it takes to get there and any extra buffer for parking or shuttles, and what is left is when to walk out the door. For a 9:30 AM international flight with a 60-minute trip to the airport, arriving 3 hours early (the amount Delta, American and Alaska recommend for international flights) means being at the airport by 6:30 AM and leaving home at 5:30 AM. If you aim for 2 hours instead, you leave at 6:30 AM.
This calculator does that subtraction and lays out the cutoffs on one line: the bag and check-in cutoff, the time to be through security, the time to be at the gate and the gate cutoff. The default cutoffs are the earliest ones among the U.S. airline policies checked on October 14, 2026, so the result errs on the safe side. Pick Delta, Southwest, JetBlue, American or Alaska and the numbers switch to what that airline publishes. Enter the departure date and an early-morning flight shows the day before as a real date, with a countdown to when you leave home.
Why work backwards from takeoff
Getting to the airport is only the first of several deadlines. You must check in and drop any bags before the airline's cutoff, clear TSA screening, reach the gate, and be there before the gate cutoff. Delta says it will not permit check-in after its cutoff at the airports with stricter minimums, and Southwest says a passenger who misses its check-in deadline has to be rebooked on the next available flight. Counting back from takeoff makes each of those deadlines visible instead of leaving you with a single guess about "a couple of hours."
- Early-morning and red-eye flights: a 1:10 AM flight with a 3-hour arrival target puts you at the airport at 10:10 PM the night before, so the date changes. Enter the date and the day before is shown.
- Flights with checked bags: bag cutoffs are earlier than gate times and are the deadline that catches people first. If you have no bags and have already checked in online, your own bag cutoff does not apply, but the security line and gate cutoff still do.
- Holidays and busy airports: TSA asked travelers to arrive two hours before a domestic flight in a March 2025 release for the spring travel period. Put anything that varies, such as long parking shuttles, in the extra buffer field.
- Hub airports with stricter minimums: Delta lists JFK, St. Thomas and St. Croix with earlier bag cutoffs, and several international airports with 75 to 120 minutes. Enter those airports' numbers under the cutoff fields.
How it is calculated
- Airport arrival target = flight departure time minus the minutes before departure you want to arrive. The default is 3 hours for international and 2 hours for domestic, with Tight, Standard and Relaxed presets or a value of your own.
- Time to leave home = arrival target minus travel time minus extra buffer. Travel time runs from your front door to inside the terminal, and an empty buffer counts as 0 minutes.
- Cutoffs = departure time minus the bag and check-in cutoff, or minus the gate cutoff. Choose an airline and its published minutes are used, or adjust the numbers yourself.
- Slack = bag cutoff time minus arrival target. If it is negative, the bag cutoff has already passed when you arrive and a warning appears.
- Through security and at the gate are fixed per route (see the table below). If your arrival is later than one of them, that row is highlighted.
- Date: with a departure date, a result that crosses midnight shows the previous day, and the time left until you leave home is counted from your device clock.
For a 9:30 AM international flight, 60 minutes of travel and no extra buffer, the airport arrival target is 9:30 AM minus 3 hours, or 6:30 AM, and the time to leave home is 6:30 AM minus 60 minutes, or 5:30 AM. The bag and check-in cutoff is 8:30 AM, which leaves 2 hours after you arrive. Be through security by 8:30 AM, at the gate by 8:45 AM, and note the gate cutoff at 9:10 AM. From the front door to takeoff is 4 hours in all.
Default values for international and domestic flights
These defaults come from the official pages checked on October 14, 2026. Arrival targets use the amount airlines and TSA recommend. Cutoffs use the earliest value found among the airlines checked, so the result leans toward arriving earlier.
| Item | International | Domestic | Basis |
|---|---|---|---|
| Airport arrival target (default) | 3 hours before | 2 hours before | Delta, American and Alaska: 3 hours international. TSA, Delta, American and Alaska: 2 hours domestic |
| Tight, Standard, Relaxed | 2 hours, 2 hours 30 min, 3 hours before | 1 hour 30 min, 2 hours, 2 hours 30 min before | International: Delta's 90 to 120 minutes for JFK up to the 3-hour recommendation. Domestic: a TSA release's 90 minutes up to 2 hours plus a margin of your own |
| Bag drop and check-in cutoff (default) | 60 min before | 45 min before | Delta, Southwest, JetBlue and American: 60 minutes international, 45 minutes domestic bags |
| Through security by | 60 min before | 45 min before | Delta lists a minimum check-in/security time; no airline publishes a separate checkpoint cutoff, so the bag cutoff is used |
| At the gate by | 45 min before | 15 min before | Delta recommends being at the gate and ready to board 45 minutes before international departures; domestic gate time 15 minutes |
| Gate cutoff (default) | 20 min before | 15 min before | JetBlue: on board 20 minutes international, 15 minutes domestic. Delta and JetBlue domestic 15, Southwest 10 |
The 90-minute "tight" domestic value comes from a TSA release for Dane County Regional Airport, a mid-size airport. At a large hub it leaves little room if the bag drop or security line is long, so treat it as the shortest reasonable time and not as a target.
Bag and gate cutoffs by airline
Every airline publishes its own cutoffs, and a few airports differ. The table shows what each airline's page says and selecting the airline in the calculator fills in the same numbers. A blank value, shown as Default, means the airline's page did not give one. For an airline that is not listed, such as United, enter its numbers under the cutoff adjustment.
| Airline | Intl. bags and check-in | Intl. gate | Domestic bags and check-in | Domestic gate | Notes |
|---|---|---|---|---|---|
| Delta Air Lines | 60 min before | Default | 45 min before | 15 min before | Domestic: bags 45 min, no bags 30 min, at the gate 15 min. International: check in 60 min, gate ready 45 min recommended. JFK, STT and STX differ. |
| Southwest Airlines | 60 min before | Default | 45 min before | 10 min before | Bags 45 min domestic, 60 min international; domestic check-in without bags 30 min. In the gate area 10 min before. St. Thomas 90, Aruba 75. |
| JetBlue | 60 min before | 20 min before | 45 min before | 15 min before | Bags 45 min domestic (60 from the U.S. Virgin Islands). On board 15 min domestic, 20 min international. Dublin 80 min. |
| American Airlines | 60 min before | Default | 45 min before | Default | Check in or check bags 45 min within the U.S., 60 min to or from outside the U.S. Some airports require more. |
| Alaska Airlines | Default | Default | 40 min before | Default | Check-in and bag drop typically 40 min before departure; some airports and international flights need more. |
For example, a 2:00 PM domestic flight on Southwest has a gate cutoff of 1:50 PM, while Delta and JetBlue use 1:45 PM, and all three have the bag cutoff at 1:15 PM. Choosing the airline changes the cutoff times but not when you leave home, because that follows the airport arrival field. Only the slack between your arrival and the bag cutoff changes.
Tight, Standard and Relaxed compared
The comparison changes only the airport arrival and shows when you would leave home for each. The three levels come from recommended ranges in TSA and airline guidance and are not an official average of when travelers actually arrive.
| Route and conditions | Tight | Standard | Relaxed |
|---|---|---|---|
| International, 9:30 AM departure, 60 min travel, no buffer | Arrive 2 hours before, leave 6:30 AM 1 hour before bag cutoff | 2 hours 30 min before, leave 6:00 AM 1 hour 30 min | 3 hours before, leave 5:30 AM 2 hours |
| Domestic, 2:00 PM departure, 40 min travel, 15 min buffer | Arrive 1 hour 30 min before, leave 11:35 AM 45 min before bag cutoff | 2 hours before, leave 11:05 AM 1 hour 15 min | 2 hours 30 min before, leave 10:35 AM 1 hour 45 min |
Tight is the least time the sources support and any long line or wrong terminal can use it up. With bags to check, a holiday or an early-morning flight, choose Standard or Relaxed. The bars under the result show the time from leaving home to takeoff, with the darker part being time inside the airport.
What happens inside the airport
The timeline strip splits the time after you leave home into six parts: travel, extra buffer, check-in and bags, security, boarding and waiting for departure. Ticks mark the bag cutoff and the gate cutoff. Check-in and bags runs from your airport arrival to the time to be through security, and security runs from there to the time to be at the gate. If a part is zero, you arrive after that step's recommended time. On U.S. domestic flights the time to be at the gate and the gate cutoff are the same minute, so the boarding part is empty by design.
- International: bags and check-in close 60 minutes before departure in the airline pages checked, and Delta recommends being at the gate and ready to board 45 minutes before. For a 9:30 AM flight that is 8:30 AM for bags and security, 8:45 AM at the gate by this calculator's default and 9:10 AM for the JetBlue gate cutoff.
- Domestic: bags close 45 minutes before at Delta, Southwest, JetBlue and American, and Alaska typically at 40. Delta requires being at the gate and ready to board 15 minutes before. For a 2:00 PM flight that is 1:15 PM for bags and 1:45 PM at the gate.
- Bag drop is not the same as arriving: the cutoff is the deadline to finish checking in and dropping bags. You still have to stand in the line, so arrive earlier than the cutoff.
Travel time to the airport
Travel time should include everything between your front door and the inside of the terminal: waiting for a ride or train, walking, a parking shuttle, and the walk from the curb to the check-in area. Anything you want to keep separate, such as a cushion for traffic, goes in the extra buffer field, where it appears hatched in the strip.
- Driving or rideshare: drive time plus parking and the shuttle (the shuttle can go in the extra buffer). Allow more for parking at busy times.
- Transit: walk to the stop, wait for the vehicle, ride, and walk inside the terminal.
- Large airports: Delta's page advises arriving 90 to 120 minutes before an international departure from JFK, and lists a 60-minute bag cutoff there for domestic flights. Check your ticket for the terminal before you choose a route.
If you only know the distance, a travel time calculator can give you the trip time first, which you then enter here.
Flights that leave after midnight
On a 1:10 AM international flight, subtracting 3 hours moves the arrival target to the previous day. With 50 minutes of travel, the airport arrival target is 10:10 PM the night before and the time to leave home is 9:20 PM. With a departure date entered, the result shows the previous day's date and weekday, while the bag cutoff of 12:10 AM and the gate cutoff of 12:50 AM are on the day of departure and carry no extra date. Arrival target, travel and buffer can add up to 20 hours at most, so a result goes back at most one day.
Online check-in does not move the bag cutoff
Checking in on your phone does not remove the bag deadlines. Delta says checked bags will not be accepted at the airport more than 6 hours before departure and must be checked in at least 45 minutes before a domestic flight and 1 hour before an international one. JetBlue kiosks do not take bags earlier than 6 hours before departure (4 hours at Fort Lauderdale and San Juan). Alaska says agents can take your bags as early as four hours before your flight, and American allows online check-in starting 24 hours before departure and up to 45 minutes before (90 minutes for international).
Without bags and with a mobile boarding pass, only the check-in deadline and the gate cutoff remain. Without bags, the domestic check-in deadline is 30 minutes at both Southwest and Delta. That does not shorten the time you need for security, so the calculator keeps the arrival target at the airline's recommended 2 hours domestic unless you change it.
Common mistakes
- Entering boarding time as departure time: use the flight's departure time on the boarding pass. Boarding usually starts well before that.
- Leaving out the walk and wait in travel time: entering only a 35-minute train ride leaves out the walk to the station and the wait for the train, so the result is too tight.
- Arrival later than the bag cutoff: on a 10:00 AM domestic flight, an arrival target of 30 minutes before is 9:30 AM, which is 15 minutes after the 9:15 AM bag cutoff, so you could not check a bag. Read the warning under the result and raise the arrival value.
- Using one airline's numbers for another: Southwest's gate time is 10 minutes and JetBlue's is 15. Pick the airline you booked.
- Entering a bag cutoff later than the gate cutoff: the bag counter does not close after the gate, so the calculator asks you to check the two values instead of computing.
Limits and cautions
- The defaults are the public policies checked on October 14, 2026. Airlines say cutoffs can vary by airport, so for your trip the airline's latest notice comes first.
- Live traffic, security wait times, delays and gate changes are not included. Use the airport's own wait-time information and add the difference to the extra buffer.
- The calculator does not include United Airlines, because its minutes could not be confirmed from an official page on the day of checking. American's and Alaska's gate times and Alaska's international cutoff were also not stated in the pages checked, so those show as Default.
- Flights from the U.S. to countries with their own cutoffs, and non-U.S. airports, need their own numbers. Enter them under the cutoff fields.
- Time left is counted from the clock and time zone of your device, so a wrong device clock gives a wrong countdown. Passport and visa checks and baggage rules are not covered.
Checked October 14, 2026. Arrival targets and airline cutoffs are the values published by TSA, Delta, Southwest, JetBlue, American and Alaska on that date. The calculation rule, subtracting minutes from the departure time in order, does not change. If a policy changes, only the defaults are updated.
Sources
- 01TSA: prepared for busy spring travel period (March 20, 2025)Travelers urged to arrive two hours before a scheduled flight
- 02TSA: Dane County Regional Airport passengers reminded to arrive early (September 28, 2022)Arriving 90 minutes before departure is encouraged
- 03Delta: U.S. domestic check-in requirementsBags 45 minutes, no bags 30 minutes, gate 15 minutes, arrive 2 hours early, airport exceptions
- 04Delta: international check-in requirementsCheck in 1 hour before, arrive 3 hours early, gate ready 45 minutes, airport exceptions
- 05Southwest Airlines: When to arrive for your flightBags 45 minutes domestic and 60 international, check-in 30 and 60 minutes, gate area 10 minutes
- 06JetBlue: airport check-inBags 45 minutes domestic, 60 international, on board 15 and 20 minutes
- 07American Airlines: check-in and arrival times45 minutes within the U.S., 60 minutes to or from outside the U.S., recommended arrival 2 and 3 hours
- 08Alaska Airlines: what is happening before your flightCheck-in and bag drop typically 40 minutes, arrive about two hours early (three international)
Frequently asked questions
What time should I leave home for a 9:30 AM international flight?
With a 60-minute trip to the airport and arrival 3 hours before departure, leave at 5:30 AM. Aiming for 2 hours before means 6:30 AM, and the Standard 2 hours 30 minutes means 6:00 AM. In every case the default bag cutoff is 8:30 AM and the gate cutoff is 9:10 AM.
How early should I get to the airport for a domestic flight?
TSA, Delta, American and Alaska all point to about 2 hours before a domestic flight. Bags close 45 minutes before at Delta, Southwest, JetBlue and American, and typically 40 minutes at Alaska. For a 2:00 PM domestic flight with a 40-minute trip and a 15-minute buffer, a 2-hour arrival means leaving home at 11:05 AM.
How early should I arrive for an international flight?
Delta, American and Alaska recommend arriving about 3 hours before an international departure. Delta, Southwest, JetBlue and American set the bag and check-in deadline at 60 minutes before. Some airports ask for more, and Delta suggests 90 to 120 minutes before international departures from JFK.
What is the difference between the bag cutoff and the gate cutoff?
The bag cutoff is the last moment to check in and drop checked bags, and the gate cutoff is when boarding closes at the gate. For a 9:30 AM international flight, the default bag cutoff is 8:30 AM and the gate cutoff is 9:10 AM. Even with online check-in, you must be at the airport before the bag cutoff if you have bags.
Does online check-in change when I need to arrive?
It does not move the bag deadline. Delta will not accept bags at the airport more than 6 hours before departure and requires bags at least 45 minutes before a domestic flight. American allows online check-in until 45 minutes before a domestic flight (90 for international). Security and the gate cutoff still apply.
What time do I leave for a 1:10 AM flight?
For an international flight, arrival 3 hours before and a 50-minute trip, leave home at 9:20 PM the day before and reach the airport at 10:10 PM. With the date entered, the result shows the day before. The bag cutoff of 12:10 AM and the gate cutoff of 12:50 AM fall on the day of departure.
What if my airline's cutoff is different from the default?
Select the airline in the cutoff field and its published minutes are used. United is not listed because its minutes could not be confirmed from an official page, so for it or any other airline, open the cutoff adjustment and enter the minutes before departure. The default is the earliest cutoff among the airlines checked, so the result leans toward arriving earlier.
Does the calculator include traffic and security lines?
No. It does not use live traffic, security wait times or delays. Put what you expect into the extra buffer field. The 90-minute Tight domestic value comes from a TSA release for a mid-size airport, so at a large hub it leaves little margin and Standard is the safer choice.