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Washington to Chicago in March 2027 DCA, IAD → MDW, ORD

Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) → Chicago Midway International Airport (MDW), O'Hare International Airport (ORD)

For departures in March 2027, the cheapest return found recently is $387 with American Airlines, 23 Mar 2027 – 27 Mar 2027, found 3 days ago.

Return

In March 2027, the cheapest return fare on each of 8 departure dates is usually $407 to $419. Across all 15 departure dates we hold on this route, it is usually $340 to $415. Of the 2 months with enough return fares to compare, March 2027 is usually the most expensive.

Cheapest return found recently

$387

23 Mar 2027 – 27 Mar 2027 · American Airlines

Ronald Reagan National Airport (DCA) → O'Hare International Airport (ORD)

out nonstop, back nonstop

found 3 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in March 2027

DatesFromAirlineStopsFound
23 Mar 2027 – 27 Mar 2027$387American Airlinesout nonstop, back nonstopfound 3 days agoSee prices for these dates
22 Mar 2027 – 25 Mar 2027$402American Airlinesout 1 stop, back nonstopfound 3 days agoSee prices for these dates
24 Mar 2027 – 29 Mar 2027$408United Airlinesout nonstop, back nonstopfound 3 days agoSee prices for these dates
25 Mar 2027 – 29 Mar 2027$413United Airlinesout nonstop, back nonstopfound 3 days agoSee prices for these dates
18 Mar 2027 – 23 Mar 2027$415United Airlinesout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

8 departure dates

18 Mar 2027 – 23 Mar 2027: $415, found 3 days ago19 Mar 2027 – 23 Mar 2027: $432, found 3 days ago20 Mar 2027 – 24 Mar 2027: $415, found 3 days ago21 Mar 2027 – 24 Mar 2027: $442, found 3 days ago22 Mar 2027 – 25 Mar 2027: $402, found 3 days ago23 Mar 2027 – 27 Mar 2027: $387, found 3 days ago24 Mar 2027 – 29 Mar 2027: $408, found 3 days ago25 Mar 2027 – 29 Mar 2027: $413, found 3 days agoMar
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
18 Mar 2027 – 23 Mar 2027$415United AirlinesRonald Reagan National Airport (DCA) → O'Hare International Airport (ORD)out nonstop, back nonstopfound 3 days agoSee prices for these dates
19 Mar 2027 – 23 Mar 2027$432Southwest AirlinesRonald Reagan National Airport (DCA) → Chicago Midway International Airport (MDW)out nonstop, back nonstopfound 3 days agoSee prices for these dates
20 Mar 2027 – 24 Mar 2027$415United AirlinesRonald Reagan National Airport (DCA) → O'Hare International Airport (ORD)out nonstop, back nonstopfound 3 days agoSee prices for these dates
21 Mar 2027 – 24 Mar 2027$442United AirlinesWashington Dulles International Airport (IAD) → O'Hare International Airport (ORD)out nonstop, back nonstopfound 3 days agoSee prices for these dates
22 Mar 2027 – 25 Mar 2027$402American AirlinesRonald Reagan National Airport (DCA) → O'Hare International Airport (ORD)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
23 Mar 2027 – 27 Mar 2027$387American AirlinesRonald Reagan National Airport (DCA) → O'Hare International Airport (ORD)out nonstop, back nonstopfound 3 days agoSee prices for these dates
24 Mar 2027 – 29 Mar 2027$408United AirlinesWashington Dulles International Airport (IAD) → O'Hare International Airport (ORD)out nonstop, back nonstopfound 3 days agoSee prices for these dates
25 Mar 2027 – 29 Mar 2027$413United AirlinesWashington Dulles International Airport (IAD) → O'Hare International Airport (ORD)out nonstop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $176.

October 2026From $3462 departure dates26 Oct – 27 Oct · found 2 days agoSee prices for these dates
November 2026From $2294 departure dates4 Nov – 7 Nov · found 2 days agoSee prices for these dates
December 2026From $176Cheapest seen1 departure date8 Dec – 13 Dec · found 4 days agoSee prices for these dates
March 2027From $3878 departure dates23 Mar 2027 – 27 Mar 2027 · found 3 days agoSee prices for these dates

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work