IN THE WAKE of the war in the Middle East, airline baggage fees hit record highs. “Add-on fees are a huge part of airlines’ bottom lines today,” says Sean Cudahy, senior aviation reporter at the Points Guy. If you have elite status with an airline, use its credit card or pay for a higher fare, you may still get free checked baggage. For everyone else, it’s key to know the cost before you book. Here’s a look at the bag fees for domestic flights. —Berit Thorkelson

✈️ ALASKA

First bag: $45

Second bag: $55

✈️ AMERICAN

First bag: $45–$55

Second bag: $55–$65

✈️ DELTA

First bag: $45

Second bag: $55

✈️ HAWAIIAN

First bag: $30*–$45

Second bag: $40*–$55

*intra-island

✈️ JETBLUE

First bag: $45–$59

Second bag: $59–$79

✈️ SOUTHWEST

First bag: $45

Second bag: $55

✈️ UNITED

First bag: $45–$50

Second bag: $55–$60

$6,942