How are baggage fees calculated on multi-city trips with the same airline

I've booked a multi city trip consisting out of 7 flights of which 2 are directly connected (90 minute and 4 hour layover). How many times would I have to pay the bagage fees?
The first and final flight are international (to Europe) and the rest are US domestic if that matters.
Best Answer
If you are subject to baggage fees, meaning:
- They are not included in the fare
- You are not an elite program member
- Are not traveling in a premium cabin
- You do not get free bag because of some other benefit, such as a credit card
Fees are typically collected per Origin-Destination city pair, regardless of how many connections are involved.
For example, if you going from JFK to LAX, you pay $15 to check a bag if you fly JFK-LAX direct or connect JFK-DFW-LAX. You do not pay $15 for each flight on a connection.
If you have 7 flights and only two are connected, you will pay the fee 6 times because you have 6 O/D trips.
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Do you have to pay separate baggage fees for connecting flights?
If your flight has a connection, bags will generally transfer from flight to flight and no additional fees will apply.Do I have to recheck bags on a connecting flight with different airlines?
If it's headed to the layover country, you'll need to recheck your bags there. If it's headed to the final destination, you won't need to recheck your bags. This is the most accurate way of knowing whether you'll need to recheck your bags or not.How does baggage allowance work with connecting flights?
When you purchase a connecting flight, checked baggage is usually forwarded to your final destination, and will change planes when you do. The agent at check-in will usually ask if you want your luggage checked through to your last stop.Is baggage allowance combined?
The baggage allowance stated in your booking confirmation or in your ticket is per passenger and can't be combined with another passenger. If a checked bag weighs 23kg\u201332kg (50\u201370lb), a heavy bag charge will be collected at the airport.Which is the best ticket to book? One-way, round trip and multi tickets explained - FAQ Fridays
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