Keyword number 2 . flights
Keyword number 3 . flight
Keyword number 4 . kayak
Keyword number 5 . flight skyscanner
Keyword number 6 . skyscanner usa
Keyword number 7 . cheap flights
Keyword number 8 . southwest
Keyword number 9 . expedia
Keyword number 10 . delta
Keyword number 11 . united
Keyword number 12 . american airlines
Keyword number 13 . google flights
Keyword number 14 . spirit
Keyword number 15 . southwest airlines
Keyword number 16 . united airlines
Keyword number 17 . sky
Keyword number 18 . jetblue
Keyword number 19 . cheapoair
Keyword number 20 . skyscanner hotels
Keyword number 21 . spirit airlines
Keyword number 22 . orbitz
Keyword number 23 . delta airlines
Keyword number 24 . virgin
Keyword number 25 . priceline
