 Dark Flaaffy #33/109EX Team Rocket Returns · Reverse Holofoil · 2004 | $130 | $299 | $2,175 |
 Flaaffy #077/165Expedition · Reverse Holofoil · 2002 | $99.97 | $502 | $4,330 |
 Flaaffy #56/115EX Unseen Forces · Reverse Holofoil · 2005 | $74.99 | — | — |
 Flaaffy #007/017POP Series 7 · Normal · 2026 | $36.83 | — | — |
 Flaaffy #047/147Aquapolis · Reverse Holofoil · 2003 | $34.43 | $153 | $3,648 |
 Flaaffy (Delta Species) #30/101EX Dragon Frontiers · Reverse Holofoil · 2006 | $30.13 | — | — |
 Flaaffy #27/97EX Dragon · Reverse Holofoil · 2003 | $20.69 | — | — |
 Dark Flaaffy #034/105Neo Destiny · 1st Edition · 2002 | $18.10 | $50.55 | $300 |
| Flaaffy #047/147Aquapolis · Normal · 2003 | $17.93 | $32.66 | $172 |
| Flaaffy (Delta Species) #30/101EX Dragon Frontiers · Normal · 2006 | $12.69 | $29.10 | $81.00 |
| Dark Flaaffy #33/109EX Team Rocket Returns · Normal · 2004 | $11.10 | $77.00 | $237 |
| Flaaffy #077/165Expedition · Normal · 2002 | $11.05 | $120 | $331 |
 Flaaffy #48/127Platinum · Reverse Holofoil · 2009 | $10.69 | $15.00 | $149 |
 Flaaffy #28/64Neo Revelation · 1st Edition · 2001 | $8.16 | $45.00 | $258 |
 Flaaffy (Secret) #280/264Fusion Strike · Holofoil · 2021 | $7.71 | $25.07 | $85.00 |
 Flaaffy #43/95Call of Legends · Reverse Holofoil · 2011 | $7.60 | $37.50 | $139 |
 Flaaffy - SWSH122 (Prerelease) #SWSH122Sword & Shield Promo Cards · Holofoil · 2019 | $7.42 | — | — |
 Flaaffy #034/111Neo Genesis · 1st Edition · 2000 | $6.56 | $45.97 | $178 |
 Flaaffy #39/124Dragons Exalted · Reverse Holofoil · 2012 | $6.51 | $40.31 | $98.62 |
 Flaaffy #42/123HeartGold SoulSilver · Reverse Holofoil · 2010 | $5.77 | $30.51 | $82.59 |
| Flaaffy #27/97EX Dragon · Normal · 2003 | $5.76 | $35.00 | $136 |
| Dark Flaaffy #034/105Neo Destiny · Unlimited · 2002 | $5.18 | $27.00 | $93.11 |
 Flaaffy #50/132Secret Wonders · Reverse Holofoil · 2007 | $4.83 | $44.30 | $127 |
 Flaaffy #TG03/TG30Silver Tempest Trainer Gallery · Holofoil · 2022 | $4.73 | — | — |
| Flaaffy #034/111Neo Genesis · Unlimited · 2000 | $4.62 | $12.00 | $46.00 |
 Flaaffy (#3) #3/30HGSS Trainer Kit: Gyarados & Raichu · Normal · 2010 | $2.67 | — | — |
| Flaaffy #28/64Neo Revelation · Unlimited · 2001 | $2.47 | $20.30 | $33.72 |
 Flaaffy - Pikachu 5 #108Battle Academy 2024 · Normal · 2024 | $2.42 | — | — |
 Flaaffy #015Scarlet & Violet Promo Cards · Normal · 2023 | $2.39 | — | — |
| Flaaffy #48/127Platinum · Normal · 2009 | $1.59 | $19.99 | $63.24 |
| Flaaffy #56/115EX Unseen Forces · Normal · 2005 | $1.34 | — | — |
| Flaaffy #50/132Secret Wonders · Normal · 2007 | $1.27 | $7.00 | $79.66 |
| Flaaffy #42/123HeartGold SoulSilver · Normal · 2010 | $1.23 | $22.65 | $53.48 |
 Flaaffy (#17) #17/30HGSS Trainer Kit: Gyarados & Raichu · Normal · 2010 | $1.16 | — | — |
 Flaaffy #77/214SM - Lost Thunder · Reverse Holofoil · 2018 | $1.00 | $13.43 | $35.76 |
| Flaaffy #43/95Call of Legends · Normal · 2011 | $0.95 | $26.13 | $38.55 |
 Flaaffy #42/181SM - Team Up · Reverse Holofoil · 2019 | $0.93 | $15.41 | $39.05 |
 Flaaffy #055/203Prize Pack Series Cards · Holofoil · 2022 | $0.72 | — | — |
 Flaaffy - Pikachu 53 #108Battle Academy 2024 · Normal · 2024 | $0.70 | — | — |
 Flaaffy - Pikachu 37 #108Battle Academy 2024 · Normal · 2024 | $0.65 | — | — |
 Flaaffy #39/114XY - Steam Siege · Reverse Holofoil · 2016 | $0.63 | $14.34 | $37.96 |
 Flaaffy #056/189Darkness Ablaze · Reverse Holofoil · 2020 | $0.56 | $14.00 | $19.74 |
| Flaaffy #39/124Dragons Exalted · Normal · 2012 | $0.53 | $13.96 | $38.97 |
| Flaaffy #055/203Prize Pack Series Cards · Normal · 2022 | $0.52 | — | — |
| Flaaffy #42/181SM - Team Up · Normal · 2019 | $0.41 | $11.28 | $32.14 |
 Flaaffy - 9/15 #009/015McDonald's Promos 2022 · Normal · 2022 | $0.37 | — | — |
 Flaaffy #048/198Chilling Reign · Reverse Holofoil · 2021 | $0.36 | $12.29 | $33.94 |
 Flaaffy #055/203Evolving Skies · Reverse Holofoil · 2021 | $0.34 | $11.43 | $32.50 |
 Flaaffy #028/086Chaos Rising · Reverse Holofoil · 2026 | $0.32 | $11.17 | $34.12 |
| Flaaffy #77/214SM - Lost Thunder · Normal · 2018 | $0.31 | $12.26 | $33.80 |
 Flaaffy #067/198Scarlet & Violet Base Set · Reverse Holofoil · 2023 | $0.26 | — | — |
| Flaaffy #056/189Darkness Ablaze · Normal · 2020 | $0.26 | $12.00 | $34.34 |
 Team Rocket's Flaaffy #073/182Destined Rivals · Reverse Holofoil · 2025 | $0.24 | $6.13 | $31.33 |
| Flaaffy #39/114XY - Steam Siege · Normal · 2016 | $0.23 | $14.08 | $37.48 |
| Flaaffy #055/203Evolving Skies · Normal · 2021 | $0.20 | — | — |
| Flaaffy #028/086Chaos Rising · Normal · 2026 | $0.17 | $10.47 | $31.66 |
| Flaaffy #048/198Chilling Reign · Normal · 2021 | $0.17 | $11.37 | $32.37 |
| Team Rocket's Flaaffy #073/182Destined Rivals · Normal · 2025 | $0.16 | $19.95 | $55.29 |
| Flaaffy #067/198Scarlet & Violet Base Set · Normal · 2023 | $0.13 | $10.40 | $30.80 |