UPDATE: The post below was written on March 11th. To see an update on when "Signed, Sealed, Delivered: To The Moon and Back" will premiere on TV, please *CLICK HERE*!
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If I had a dollar for every time I've been asked this question lately, I'd be rich!
Sooo... When will "Signed, Sealed, Delivered: To The Moon and Back" premiere on Hallmark Mystery?
As I write this post on Tuesday, March 11th, Hallmark hasn't shared any updates yet, except the initial promise was that we could look forward to the movie's premiere sometime in 2025. However, I have a theory on this, so you'll want to keep reading!
I've also included a longer storyline description of "Signed, Sealed, Delivered: To The Moon and Back" below.

My first hunch...
The previous film, Signed, Sealed, Delivered: A Tale of Three Letters, starring Eric Mabius, Kristin Booth, Yan-Kay Crystal Lowe, Geoff Gustafson, and Rhiannon Fish, premiered on July 12, 2024, so perhaps the network is trying to space the premieres out at the same timing... or somewhat closer.
In A Tale of Three Letters our POstables attempt to deliver three crucial letters all the while dealing with their own personal issues. Oliver and Shane are newly married, and Rita and Norman hope to adopt.
It has recently been announced that Good TV in Australia is premiering "Signed, Sealed, Delivered: To The Moon and Back" on April 5th. Unfortunately, U.S. viewers are not able to watch this channel, but I believe it won't be long for us. Here's why...
Have you ever noticed that the Hallmark Channel often airs Christmas movies on Friday nights that include an actor/actress for whatever new movie is premiering next?

Well, on Friday, April 25th, the Hallmark Channel is airing not one, but TWO Christmas movies that star Eric Mabius - Signed, Sealed, Delivered: For Christmas and Welcome to Christmas. And just days before that, the Hallmark Channel is playing THREE Signed, Sealed, Delivered movies: To The Altar, The Vows We Have Made, and A Tale of Three Letters. It's a bit more unusual for the Hallmark CHANNEL to play so many Signed, Sealed, Delivered movies.
Based on those airings, my hunch is that the new premiere might air on May 1st or early May. And since Shane was expecting at the end of the last movie and Rita and Norman were adopting, Mother's Day would be a very special time for this premiere as both couples have become parents for the first time.
UPDATE - March 13, 2025: Unfortunately, the Hallmark Channel has now removed ALL April airings of "Signed, Sealed, Delivered" from its schedule. Stay tuned for further developments.
The image above was shared by Good TV. I'm not sure if this will be the final poster or key art for Hallmark.
This is a fuller detailed storyline for "Signed, Sealed, Delivered: To The Moon and Back" via Good TV:
'To The Moon and Back' follows the POstables - Oliver, Shane, Rita, and Norman - tasked with delivering a lost letter they find at a Denver Cafe, formerly a nightclub called Starmakers. The letter, filled with personal reflections and cryptic phrases like “Tell It to The Moon", leads them to Nate Holloway, a famous singer-songwriter. He reveals his big hit was written by his former partner, Tracy Reo, a talented but reclusive songwriter who disappeared years ago. The POstables track Tracy’s whereabouts, discovering she has been living under an assumed name to hide from a troubled past.
Meanwhile, Oliver grapples with revelations from old letters, as he discovers new information about his birthfather, stirring doubts about his own identity. Faced with a difficult decision, Oliver is forced to confront his beliefs about family, loyalty, and moral integrity.
Hopefully, we will hear official news for the "Signed, Sealed, Delivered: To The Moon and Back" premiere soon! Stay tuned, POstables!