Season 1-3: In Order
Season 4: Recommended order – 1,8, 2-13
Episode 8 was unintentionally aired out of order on TV, with certain aspects making better sense in this, the intended order. You can also watch it in the order it is on Netflix to match the order it aired.
Thanks anon for pointing out the discrepancy. Possible spoilers in the IMDB page linked.
When is Season 5 coming?
Archer Season 4 aired from January – April, 2013, and came to Netflix March 9, 2014. Season 5 aired from January – April, 2014, so we expect it to come to Netflix early March, 2015.
Similarly, Season 6 should start airing January, 2015.