In English, it is very common to use the phrase "I'm home" to announce to others in your house that you are there. Another way that you can say this is "I've arrived!" This phrase is good because you can use it wherever, not just at your home.
I hope that this helps :)
The three sentences you see provided above are great ways to express to your listener that you have arrived at your home. The third sentence is a common way we express our happiness for being home. Especially after a long day at work or school, many people will say 'Home sweet home!'. This sentence is a term that is common in our everyday conversation. It would make an awesome addition to your vocabulary.
Native speakers will say like this: “I'm home”.
There are lots of other ways to say it, but this one is the most accurate and most commonly used.
Here is an example on how to use this in a conversation:
A: Honey, I'm home!
B: Hi, how was your day?
ネイティブスピーカーなら、このように言うでしょう：
“I'm home”（ただいま）
他にもいろいろな言い方ができますが、これが最も正確で一般的です。
会話に使うと次のようになります：
A: Honey, I'm home!
［訳］ただいま！
B: Hi, how was your day?
［訳］おかえり、今日はどうだった？
Someone can say any of these expressions upon entering the home, and greeting those that may be there. Here are three examples:-
1. I'm home
2. Honey, I'm home (This is usually used to greet one's spouse uopn reaching home )
3. No place like home !
どれも家に帰ったときに使える表現です。
●I'm home!
（ただいま！）
●Honey, I'm home!
（ハニー、帰ったよ！）
配偶者やパートナーに伝えるときに使います。
●No place like home!
（自分の家に勝るものはない！➔自分の家が一番いい）
Usually when someone returns home they either shout out I'm home or I'm back.
For example.
I'm home.
Finally, what took you so long?
Well, there was a traffic jam.
Anyway, you are back now, it is time for dinner.
I hope that helps.
Have a great day.
Will
When someone arrives home and walks in the front door, it is common to say something - especially as you do not want to frighten the person who is at home. So usually people say something like:
"Honey, I'm home!" Although that phrase is a little cliche.
ドイツ 
アメリカ合衆国 
南アフリカ 
イギリス 
カナダ 
ミャンマー 
