If I Miss My Connecting Flight Due to Delay: What Happens?

If I miss my connecting flight due to delay, what happens?

Start with the airline app. Your airline may already have replaced the missed segment with another flight. If nothing appears, contact the airline through the app while you walk to its customer-service desk or departure gate. Keep the original boarding passes and the new itinerary together.

The important distinction is between an airline promise and a government requirement. American Airlines, Delta, and Southwest each publish their own rebooking procedures. The U.S. Department of Transportation refund rule says airlines often offer another flight after a cancellation or significant delay, but DOT does not require that offer in every case. Read the policy of the airline that issued or operates your trip instead of assuming every carrier handles a misconnection identically.

What to do after a delayed flight causes a missed connection

1. Open the airline app before joining a line. Look for a replacement flight, a new boarding pass, and any prompt asking you to accept or change the itinerary. Delta says an automatically updated itinerary appears in My Trips. American says travelers can review a changed trip in its app, on its website, or at an airport kiosk.
2. Confirm the whole remaining itinerary. Check the destination, connecting airport, date, cabin, and every later segment. A rebooking can change more than the flight you just missed. DOT treats an itinerary with more connection points as one form of significant change for refund purposes.
3. Ask for a workable alternative. If the automatic option does not work, search the airline's own channels for another flight and ask an agent to confirm whether it can be substituted. Delta explicitly directs customers to its app or My Trips to search alternatives.
4. Ask what happens to checked bags. Do not assume a bag follows every itinerary change. Delta says it tries to reroute checked bags but may not always be able to do so. Ask whether the bag is moving to the replacement flight or whether you must collect it.
5. Choose rebooking or a refund deliberately. Under DOT rules, a traveler who accepts and takes the changed or alternative flight is not entitled to a ticket refund merely because the original trip was disrupted. If the change is significant and you decline the alternative, the refund path may apply instead.
6. Save the record. Keep alerts, boarding passes, the rebooking confirmation, and receipts. If you later ask the airline to reimburse eligible costs, those records show the disruption and what you paid.

Does the airline have to rebook me?

For travel to, from, or within the United States, DOT says rebooking offers are common after a cancellation or significant delay, but they are not required by DOT. The airline's customer-service plan or contract controls what it promises beyond the federal refund requirement.

Official policy	What the published page says	What you should do
American Airlines	If a delay could cause a missed connection, American says it will rebook the traveler on its next flight with available seats at no additional cost.	Check the app, website, kiosk, or an airport agent for the replacement itinerary.
Delta	After a cancellation or significant delay, Delta says it first tries to rebook the traveler at no additional cost.	Review My Trips and search there for alternatives if the new itinerary is unsuitable.
Southwest	Southwest says that, in most cases, it automatically rebooks the traveler on another Southwest flight after a few minutes.	Confirm the new reservation in the message or app; change or cancel it if it does not work.
U.S. DOT	DOT says alternative-flight offers are common but not federally required in every disruption.	Check the specific airline's current customer-service plan before relying on a benefit.

These examples demonstrate why the carrier name matters. They do not turn one airline's promise into an industry-wide rule. A codeshare can also display more than one airline name, so use the contact information on the ticket and ask which carrier is handling the disrupted segment.

One itinerary versus separate tickets

First determine whether both flights sit on the same ticket or whether you bought separate reservations. On one itinerary, show the airline the complete booking and ask it to protect every remaining segment. The airline's published disruption policy is the starting point for that request.

With separate tickets, the second reservation may not update when the first carrier delays you. Contact the second airline before its flight departs and ask what options its fare rules allow. Do not buy a replacement until you understand whether the existing booking can be changed, because a new purchase does not itself cancel or modify the old one.

Delta's customer-service plan warns that combining separate one-way tickets increases the chance of customer-service failures such as missed connections. That is a useful booking lesson: a cheap self-transfer can leave two carriers looking at two independent records rather than one connected journey.

Can I get a refund instead of taking the new flight?

Possibly. DOT says a canceled flight qualifies for a refund when the traveler chooses not to travel and does not accept a credit, voucher, or other offered compensation. A significant delay or change also qualifies when the traveler rejects the changed trip or other offer. DOT's definition includes a scheduled arrival at the destination at least 3 hours later for a domestic itinerary or at least 6 hours later for an international itinerary. It also includes certain airport changes, extra connection points, and involuntary cabin downgrades.

The choice matters. DOT says that if you take the significantly changed flight or an alternative offered by the airline, you are not entitled to a refund under that rule. Compare the arrival time and usefulness of the rebooking before accepting or rejecting it. If you reject an alternative-flight offer after a qualifying disruption, DOT says the refund must be automatic.

When a refund is due after rejecting an offer, DOT says it is due within 7 business days for a credit-card payment or 20 calendar days for another payment method. If a ticket agent was the merchant of record—the business shown on the payment statement—that merchant is responsible for the airfare refund.

Will the airline pay for meals or a hotel?

Do not treat a missed connection as an automatic hotel entitlement. The cause of the disruption and the airline's own commitment matter. DOT directs travelers to airline customer-service plans and its cancellation-and-delay dashboard for the services carriers promise during controllable disruptions.

American Airlines illustrates the difference. For a delay or cancellation it caused, American lists a hotel voucher for an eligible overnight delay away from the traveler's city of residence, transportation between the airport and hotel, and food or beverage credit when the delay reaches 3 hours after scheduled departure. For events beyond its control, such as weather, American says the traveler is responsible for overnight accommodation, meals, and incidental expenses.

Delta says qualifying controllable disruptions may include hotel accommodation, ground transportation, and meal vouchers, subject to its stated conditions and availability. Its page excludes reimbursement for weather and air-traffic-control delays. Ask the airline before booking a room yourself, and retain itemized receipts if an agent or the published policy tells you to arrange your own eligible expense.

What if the replacement connection changes terminals?

Read the new boarding pass rather than heading automatically to the old gate. Confirm the airport, terminal, and flight number. If the route sends you outside the secure area, follow airport signs and expect to pass through the checkpoint again. TSA explains that passenger screening is designed to keep prohibited items and other threats from entering the sterile area.

Pack for that possibility. TSA says even a generally permitted item can receive additional screening or be refused at the checkpoint if it alarms, appears tampered with, or raises another security concern. If you are unsure about an item, use TSA's official What Can I Bring tool or AskTSA before the trip.

How to make the conversation with an agent faster

• State the final destination and show the entire ticket, not only the missed boarding pass.
• Say whether you want the earliest workable arrival or prefer a refund if the disruption qualifies.
• Point out any accessibility need, checked bag, child traveler, or document issue that makes a proposed route unsuitable.
• Ask the agent to confirm all later segments and the checked-bag routing before ending the conversation.
• Save the replacement boarding pass offline in case the airport connection drops.

Rules and airline commitments change. Confirm the current policy with the operating airline and the relevant government authority before flying.