In Thor: The Dark World, Odin reminds Loki that Asgardians are not immortal and have lifespans as humans do, to which Loki responds: "Give or take 5,000 years." From this, it can be calculated that Asgardians live to about 5,100, with Loki being around 1050 years old in the MCU.
Marvel Studios Loki is roughly 1,047 years old during the events of The Avengers. In the opening to Thor, we see Odin rescuing the baby Loki in 965 A.D. He would die in the year 2018 during the events of Infinity War, so he would have been 1,053 years old.
In the opening of Thor: The Dark World, straight after The Avengers, Odin says, "We are not gods. We are born, we live, we die. Just as humans do," to which Loki replies, "... Give or take 5000 years." From this, it can be taken that Asgardians live approximately 5000 years longer than humans.
"Loki Is About 16 Years Old In The MCU In Thor: The Dark World, Odin reminds Loki that Asgardians are not immortal and have lifespans as humans do, to which Loki responds: "Give or take 5,000 years." From this, it can be calculated that Asgardians live to about 5,100, with Loki being around 1050 years old in the MCU."
In Thor: The Dark World, Odin makes it clear that they “are born, they live, they die, just as humans do”, to which Loki replies that “give or take, 5000 years” – so taking that into account, Odin was at least 5000 years old when he died in Ragnarok.
While Steve Rogers gets the title of the oldest human avenger, Thor Odinson, as the mighty Asgardian God of Thunder, has a much longer life span than any of his Earth-born friends.
Looking at the aging of Frost Giants in the MCU and the age of the actress playing Sylvie, it makes sense that she too is close to a thousand years old. Odin confirmed in Thor that Asgardians, who aren't actual immortals, age like humans do, just slower.
Asgardians are an alien race that possesses advanced forms of magical abilities. Aside from their powers, they also have longevity, aging much slower than other living beings. Though it wasn't directly stated early in the MCU, Thor mentioned to Rocket Raccoon in Avengers: Infinity War that he was 1,500 years old.
The character Loki was first introduced in Timely Comics - which later became Marvel - in 1949 in Venus #6. Loki's greatest weakness is water and his spells do not work in water.
Thor and Loki are epically powerful gods from the Norse-inspired realm of Asgard, both powered by humanity's belief in them, but it is often shown that the God of Thunder Thor is much more "powerful" than his sibling Loki.
Loki is married to Sigyn and they have two sons, Narfi or Nari and Váli. By the jötunn Angrboða, Loki is the father of Hel, the wolf Fenrir, and the world serpent Jörmungandr. In the form of a mare, Loki was impregnated by the stallion Svaðilfari and gave birth to the eight-legged horse Sleipnir.
Sylvie is an original character created for the MCU with inspiration taken from Lady Loki, a female form of the original Loki who debuted in Thor Vol. 2 #80 following the Ragnarok event, and Sylvie Lushton, the second iteration of the Enchantress introduced in Dark Reign: Young Avengers #1.
The two trekked to a nearby town, and the two argued on the way, especially how Sylvie was a Variant but did not like to be called one, and also did not like to be called Loki. She then told him her name was Sylvie, and Loki told her that having an alias was not Loki-like.
"Honestly, the way I always read that kiss is that her feelings were genuine and that it was a goodbye. Sylvie is sort of where our Loki was in Thor. She's driven by revenge, pain and anger, and that's what he's saying to her. He's like, “I've been where you are, and I just want you to be OK.
While it is never addressed in-universe, MCU director Joe Russo confirmed Thanos was around 1000 years old in 2012's The Avengers when he first appeared in the MCU. Based on that, Thanos is younger than Thor and Loki, which, if revealed in one of the past two Avengers films, might have proven itself to be distracting.
Hades is the oldest of the Olympians, but you kind of get the impression that he is as powerful as either of his brothers, Zeus or Poseidon. He's not a very warlike god so it's hard to say how good a fighter he was.
As a Norse deity, Freyja is without conventional age, due to her immortality and divine nature. However, if one were trying to date her lifespan based on when she first appeared in Germanic (and later Norse) mythology during the pre-Christian era, then her age would be somewhere between the 1,200-1,300 years old.
If the surviving stories about both Gods are taken at face value then Odin is far older, because Odin was alive before this world took anything like its current form and shape, whereas Zeus came long after.
