Cheap flights from Fargo to Illinois from $95

The cheapest month to fly to Illinois from Fargo is in December. Flight prices, which tend to average around $102, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $110.

The cheapest day to depart from Fargo to Illinois is on a Saturday when prices can be found for as low as $440. Flights from Fargo to Illinois on a Sunday will generally be more expensive and average around $702. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Fargo to Illinois during this time can be as low as $454. Flights at noon are often more expensive with an average ticket price of $518.

Fly from Fargo Hector Field to Chicago O'Hare Intl for the best Fargo Hector Field - Illinois flight prices

You are more likely to see cheaper flights to Illinois from Fargo when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $323 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Fargo for as low as $209 on momondo.

The number of flights available between Fargo and Illinois is 25 per day as of May 2026. The most frequent departure time is 12:00PM, with 55% of daily flights leaving in the afternoon.

As of May 2026, 177 flights take off from Fargo and land in Illinois each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.