<p>Summoner IDs are part of the League of Legends API and are pretty useful to get to know during a <a href="/blog/spectator-v4">live-game</a> which summoner spells a summoner has equipped or which summoner spell has the best win rate by crawling match-v5 games.
There is a summoner.json file on ddragon which you can use to parse these files yourself.</p>
<p>Format using the <strong>summoner.json</strong>:<br />
<code>https://ddragon.leagueoflegends.com/cdn/{version}/data/{locale}/summoner.json</code></p>
<p>Latest version:  </p>
<p><code>https://ddragon.leagueoflegends.com/cdn/14.17.1/data/en_US/summoner.json</code></p>
<h2 id="summoner-spell-ids-(patch-14.17.1)">Summoner Spell IDs (Patch 14.17.1)</h2>
<div class="table"><table>
<thead>
<tr>
<th>ID</th>
<th style="text-align: center;">Icon</th>
<th>Key</th>
<th>Name</th>
</tr>
</thead>
<tbody>
<tr>
<td>21</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/21" alt="Barrier" height="35" width="35"/></td>
<td>SummonerBarrier</td>
<td>Barrier</td>
</tr>
<tr>
<td>1</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/1" alt="Cleanse" height="35" width="35"/></td>
<td>SummonerBoost</td>
<td>Cleanse</td>
</tr>
<tr>
<td>2202</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/2202" alt="Flash" height="35" width="35"/></td>
<td>SummonerCherryFlash</td>
<td>Flash</td>
</tr>
<tr>
<td>2201</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/2201" alt="Flee" height="35" width="35"/></td>
<td>SummonerCherryHold</td>
<td>Flee</td>
</tr>
<tr>
<td>14</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/14" alt="Ignite" height="35" width="35"/></td>
<td>SummonerDot</td>
<td>Ignite</td>
</tr>
<tr>
<td>3</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/3" alt="Exhaust" height="35" width="35"/></td>
<td>SummonerExhaust</td>
<td>Exhaust</td>
</tr>
<tr>
<td>4</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/4" alt="Flash" height="35" width="35"/></td>
<td>SummonerFlash</td>
<td>Flash</td>
</tr>
<tr>
<td>6</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/6" alt="Ghost" height="35" width="35"/></td>
<td>SummonerHaste</td>
<td>Ghost</td>
</tr>
<tr>
<td>7</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/7" alt="Heal" height="35" width="35"/></td>
<td>SummonerHeal</td>
<td>Heal</td>
</tr>
<tr>
<td>13</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/13" alt="Clarity" height="35" width="35"/></td>
<td>SummonerMana</td>
<td>Clarity</td>
</tr>
<tr>
<td>30</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/30" alt="To the King!" height="35" width="35"/></td>
<td>SummonerPoroRecall</td>
<td>To the King!</td>
</tr>
<tr>
<td>31</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/31" alt="Poro Toss" height="35" width="35"/></td>
<td>SummonerPoroThrow</td>
<td>Poro Toss</td>
</tr>
<tr>
<td>11</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/11" alt="Smite" height="35" width="35"/></td>
<td>SummonerSmite</td>
<td>Smite</td>
</tr>
<tr>
<td>39</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/39" alt="Mark" height="35" width="35"/></td>
<td>SummonerSnowURFSnowball_Mark</td>
<td>Mark</td>
</tr>
<tr>
<td>32</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/32" alt="Mark" height="35" width="35"/></td>
<td>SummonerSnowball</td>
<td>Mark</td>
</tr>
<tr>
<td>12</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/12" alt="Teleport" height="35" width="35"/></td>
<td>SummonerTeleport</td>
<td>Teleport</td>
</tr>
<tr>
<td>54</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/54" alt="Placeholder" height="35" width="35"/></td>
<td>Summoner_UltBookPlaceholder</td>
<td>Placeholder</td>
</tr>
<tr>
<td>55</td>
<td style="text-align: center;"><img src="https://lolcdn.darkintaqt.com/cdn/spells/55" alt="Placeholder and Attack-Smite" height="35" width="35"/></td>
<td>Summoner_UltBookSmitePlaceholder</td>
<td>Placeholder and Attack-Smite</td>
</tr>
</tbody>
</table></div>

In this blog article you can get the SpellId of any League of Legends Spell. 

ID	Key	Name
21	SummonerBarrier	Barrier
1	SummonerBoost	Cleanse
2202	SummonerCherryFlash	Flash
2201	SummonerCherryHold	Flee
14	SummonerDot	Ignite
3	SummonerExhaust	Exhaust
4	SummonerFlash	Flash
6	SummonerHaste	Ghost
7	SummonerHeal	Heal
13	SummonerMana	Clarity
30	SummonerPoroRecall	To the King!
31	SummonerPoroThrow	Poro Toss
11	SummonerSmite	Smite
39	SummonerSnowURFSnowball_Mark	Mark
32	SummonerSnowball	Mark
12	SummonerTeleport	Teleport
54	Summoner_UltBookPlaceholder	Placeholder
55	Summoner_UltBookSmitePlaceholder	Placeholder and Attack-Smite

A list of Summoner Spell ID's in League of Legends

Summoner Spell IDs (Patch 14.17.1)