(I've edited this several times to make it more useful from a Saga perspective)
This site might be useful:
internationalschooltoulouse. ... ourney.htm
Also this book, which has a section on the pilgrimage routes and conditions (try your library):
amazon.com/Medieval-Travelle ... 862&sr=8-1
City & Guild p87-90 details Land and Sea Travel and has the various maps and rules for adding new destinations etc.
- Land travel would be complex to calculate. PM me if you want a rough map. A History of the Crusades Vol. I: The First Crusade and the Foundations of the Kingdom of Jerusalem (Volume 1) (Paperback) ~ Steven Runciman would be worth picking up if you're serious this has a pretty good set of maps of the land route (Balkans, Anatolia to Antioch/Acre) which you could use to calculate distances - I managed to borrow the original hardback from the library. In the 13th century the land route is closed in any case (it was open briefly in the 11th/12th centuries until Asia Minor fell to the Seljuk Turks - possibly helping to spark the Crusades after Manzikert). Various crusaders tried traveling overland from Germany down the Danube valley via Vienna and Belgrade and then overland to Constantinople. They would then cross / be shipped across the Bosphorous to Chalcedon and then follow one of several roads after Nicea. The journey was perilous even when open due to the dry climate. Once they reached the Cilician Gates, they might cross into Lesser Armenia and then pass via the Syrian Gates near Alexandretta / Iskenderun to Antioch. Frederick I Barbarossa made this journey, only to drown when swimming in a Cilician stream! Otherwise the continued east, passing the Ammanus Gates in the north towards Edessa and the travelled south to Antioch. From Antioch onward down the coast to Acre, Tyre etc and then inland from jaffa via Ramleh to Jerusalem.
Or they could just disembark from Constantinople (now in Latin hands since the sacking in 1204 by the 4th Crusade forces) on a ship to Acre or Cyprus...
- The only real alternative for someone leaving from France was the sea route - typically this leaves from Venice in Spring (although there was sometimes a Summer voyage and private individuals could charter a ship anytime if rich enough). This apparently took about 4-6 weeks to get to Acre according to one of my sources, hugging the northern Mediterranean coast to avoid the Muslim privateers and Egyptian war fleet. It curved around the south of Asia Minor and Lesser Armenia, sometimes with a stopover at Cyprus and then on to Antioch or more likely Acre, the capital of the rump Kingdom of Jerusalem following the defeat by Saladin in 1187.
Distance from Venice to Acre is given as 26 days (to Cyprus is 25 days, Antioch is probably 25 or 26 also). Getting to Venice from wherever in France varies...
Some ships sailed from Barcelona, Marseilles, Norman Sicily or Genoa rather than Venice and presumably took a bit longer and/or more dangerous due to pirates.
(Barcelona to Messina Junction is 13 days. Marseilles to Messina Junction is 11 days. Genoa to Messina Junction is only 9 days. Messina Junction to Acre is 19 days.)
BTW Constantinople to Acre is 16 days by ship, but only 12 days (my estimate) to Antioch.
Timothy's Chapter on Travel in C&G says divide distance in miles by 12 for land or by 60 for sea. Very little river trade in the Holy Land IIRC except down the Euphrates / Nile.
Acre to Jaffa is ~60 miles. Jaffa to Jerusalem is ~30 miles. So by land this is about 7-8 days or 4 if taking ship to Jaffa and then travelling by land to the Holy City. Antioch is about 240 miles north of Acre - 4 days by ship hugging the remaining Crusader cities or 20 days along the coast but through some Ayyubid controlled territory south of Tripoli.
This makes Venice to Jerusalem (via Acre and then overland via Jaffa) is 33-34 days / 5 weeks. A bit longer if you disembark at Antioch and travel down the coast by ship, 3+ more weeks by land. (Barcelona to Jerusalem 39-40 days. Marseilles to Jerusalem 37-38 days. Genoa to Jerusalem 35-36 days.)
So if you can get to Barcelona, Marseilles or Genoa or Venice by the end of Winter and leave near the start of Spring with the usual pilgrimage/trade fleet, you will arrive in Acre and be able to travel to Jerusalem by about half way through the season. In practical game terms this means for a Saga that it takes about a Season to get from Europe to the Levant (I don't know when the date the fleet actually left and there's the time taken to travel to Venice). Keep it simple - 1 Season traveling. Normal play for Winter, travel for Spring (get to Venice, Venice to Acre and then to Jerusalem), restart normal play in Summer...
Hope this helps,
Lachie