$87 Find Cheap Flights from Reagan Washington National Airport to Illinois - Compare and Save

The cheapest ticket to Illinois from Washington, D.C. Reagan-National Airport found in the last 5 days was to Chicago, at $177 round-trip. The most popular route is from Washington, D.C. Reagan-National Airport (DCA) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $183.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $403 on average. Morning departures are around 3% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $438.

No, with an average price for the route of $351, prices are generally cheapest when you fly direct.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Illinois is September, when tickets cost $308 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $402 and $400 respectively.

For Reagan Washington National Airport to Illinois, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Illinois back to Reagan Washington National Airport, the best deals are generally found on Saturday, with Monday being the most expensive.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to Illinois, you should book around 4 weeks before departure, which saves you about 50% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

There are 4 airlines that fly nonstop from Washington, D.C. Reagan-National Airport to Illinois. They are: American Airlines, Frontier, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $29 for a round-trip flight to Chicago O'Hare Intl Airport (ORD). On average, Frontier offers the best prices for nonstop flights between Washington, D.C. Reagan-National Airport and Illinois.

Washington, D.C. Reagan-National Airport and Illinois are connected by different airlines. The airlines that fly that route the most regularly are American Airlines (107 flights per week), United Airlines (96 flights per week), and Air New Zealand (91 flights per week).

The duration of a flight to Illinois depends on your arrival airport. The shortest routes to Illinois from Washington, D.C. Reagan-National Airport are to Peoria, which takes 4h 36m, and Moline, which takes 4h 49m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Washington, D.C. Reagan-National Airport to Illinois departs at 6:30 am, landing in Chicago at 7:58 am.

If you prefer to fly at night, the latest flight from Washington, D.C. Reagan-National Airport to Illinois jets off at 10:40 pm and lands in Chicago at 11:59 pm.