Those pesky flies are so damn annoying. To get rid of those annoying house flies you can try a few things.
Put up fly tape.
Purchase some fly tape and hang several up where the flies are flying around.
Fly tapes work pretty good. They land on the fly tape and then get stuck too the tape and can't get off.
Get some of those water filled fly bags.
The flies will be attracted to those water fill fly catcher bags and once they get into the bags they will be trapped and can't get out.
I use a few of these outside my house and inside my house.