Dallas DFW

AA $86.20 round trip Dallas to Orlando or Phoenix

Fare War AA/UA under $50 one-way Chicago to 12 cities

American $76 round trip ORD to ATL/BOS/DFW/LGA; $136 LAX/PHX Sep-Oct

United $93 round trip Dallas DFW-New York LGA Sep-Nov

Fare Alert United $38-$43 one-way Chicago to LAX and 10 more cities

Fare Alert American Dallas to 10 cities across USA $40 one way Aug-Nov

AA/UA Dallas Deals New York LGA $99, BOS/BWI/PHL $103 round trip Aug-Nov

Aer Lingus/United ATL/DFW/IAH/JFK/MSP/PDX to Dublin $496-$620 round trip many more USA cities Sep to March 2017

a screenshot of a website

Delta USA nationwide fare sale $293 NYC to Dublin, $367 LAX/SFO Sep-Mar, AA/DL $530 many other cities to Dublin

a map of the united states

Frontier 15 low fares Denver-USA routes under $100 one way have AA/DL/UA competition on 9 routes