Frontier Airlines is having another 1-day sale where flights are 75% off for Monday through Thursday travel. Just use promo code SAVE75. This is for flights April 4 through May 23, 2018. I did a quick check and can fly from Providence to Denver for $80 roundtrip! You can check out the sale and the excluded routes here.
Just remember though, Frontier does charge for carry on luggage if it cannot fit under your seat. They also charge for advanced seat assignments. If you are one who can pack light and doesn’t care about your seat though, then you are good! And remember, you can always fly Frontier one way and another airline the other way if the flight schedules don’t work out for a full roundtrip.
Anyone book a cheap flight?