If you're a military veteran, you and your spouse have good benefits with Allegiant Air. You get up to three checked bags free, one carry-on bag free, boarding passes and seat assignments are free and you can bring one carry-on pet free. I always book/pay for my flights online but I don't pre- pay for baggage or pet. Instead when you check-in show them your military ID or DD214 and they waive all fees for baggage and boarding passes.
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