This term, the Blues have been heavily backed with notable sell-out trips to Wycombe, Ipswich and Sheffield Wednesday.
Meanwhile, 1,057 die-hard supporters made the longest trip of the season to date for their visit to Morecambe in November.
But how does Pompey’s following away from home compare to their League One rivals?
The Away Fans have put together the average followings for each side in the third tier, along with the total figures as well as each side’s average miles travelled across the whole campaign.
Here’s where the Blues rank on that list.
21. Bolton
Average away following: 1,593; Total travellers: 19,114; Club average miles travelled (full season): 147. Photo: Lewis Storey
22. Ipswich
Average away following: 1,759; Total travellers: 22,886; Club average miles travelled (full season): 182. Photo: Ashley Allen
23. BOURNEMOUTH, ENGLAND - MARCH 12: Fans during the Sky Bet Championship match between AFC Bournemouth and Derby County at Vitality Stadium on March 12, 2022 in Bournemouth, England. (Photo by Luke Walker/Getty Images)
Average away following: 2,507; Total travellers: 30,080; Club average miles travelled (full season): 112. Photo: Luke Walker
24. Sheffield Wednesday
Average away following: 2,752; Total travellers: 33,020; Club average miles travelled (full season): 131. Photo: Jacques Feeney