How to get the best price from Chicago O'Hare to Saint Mary's?

Depending on when you travel and how far in advance you book, fares between Chicago and Saint Marys can differ a lot.

Pick a travel date to see today’s available fares.

Search engines like Jetcost can highlight price changes in just seconds. For example, some users find better prices by flying on one day of the week over another — try several searches to spot the cheapest day.

Flying from or to Chicago and Saint Marys? Here are your airport options

Knowing your full list of nearby airports can make flight planning easier, especially when routes vary.

• Airports in Chicago: You have 3 departure options - Midway, O'Hare, Rockford.
• Airports in Saint Marys: Saint Marys - Saint Mary's is the only arrival option right now.

For families or those traveling with assistance, smaller airports can be easier to navigate. Cities served by multiple airports often allow for more flexible travel planning.

Compare flights from Chicago O'Hare to Saint Mary's with advanced filters

Find your ideal flight using Jetcost. Select whether you want nonstop or connecting flights, round-trip or one-way, and filter by airline, price, or booking site.

Other popular destinations

Looking for alternatives in United States? Travelers also liked: Las Vegas, Los Angeles, Miami, New York City, Orlando.

If you have a preferred time to leave or arrive, filters can help you show only the matching flights. You can also filter by your favorite airline and see only those deals.