Please be aware that Warsaw has multiple airports and that these results are for all airports serving the city.
The best day to arrive at Warsaw is Sunday and it would be best to avoid Thursday, as prices are on average 98.94% higher than on Sunday. (Average prices, based on 204 datapoints.)
The cheapest airline flying to Warsaw is Wizz Air. They are 98% cheaper than Air China. (Average prices, based on 212 datapoints.)
At Warsaw the most flights depart around 07:00. (Hourly flights, based on 259 datapoints.)