Cheapest€83.92
- United Airlines UA924218:111h 48m19:59Chicago ORDWashington DCA
Door to door 4h 58mCO2 242.3 kgChanges 0Fixed, no changes
Chicago to Washington D.C. flight
Flights from Chicago to Washington D.C. start at €97.49 and take 4h 49m at their fastest.
The Flights from Chicago to Washington D.C. starts at €97.49 and takes 4h 49m door to door, run by 5 operators over 985 km, with around 40 departures a day. Fares bottom out about 60 days before departure.
- 4h 49mDoor to door
- 1h 39mMoving
- €97.49From
- 242.3 kgCO2
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€95.13
- Southwest Airlines SA721018:171h 39m19:56Chicago ORDWashington DCA
Door to door 4h 49mCO2 242.3 kgChanges 0Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 American Airlines | €85.10 |
 American Eagle Airlines | €86.87 |
| United Airlines | €83.92 |
 Southwest Airlines | €85.10 |
 Republic Airways | €83.92 |
Washington D.C. sits on the water, which usually settles which side of town you want to wake up on. Rooms are not ours to sell.
Rooms within reach of Washington Union Station
Sort by distance from Washington Union Station and you can see which places are ten minutes on foot and which are not.
Search Washington D.C. on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Chicago to Washington D.C.
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €85.6990 days
- €67.4060 days
- €78.6145 days
- €84.5130 days
- €101.0321 days
- €129.9414 days
- €166.527 days
- €171.243 days
- €208.411 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €67.40.
- How much it moves
- The gap between the cheapest and most expensive lead time is 209 percent. The most expensive point is €208.41, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €115.78Sun
- €99.26Mon
- €97.49Tue
- €103.98Wed
- €129.94Thu
- €119.91Fri
- €124.04Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Chicago
Air
- ORD
- MDW
Washington
Air
- IAD
- DCA
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- How far it really runs
- The route covers 985 km against 956 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Chicago at 06:01 and the last at 20:53, across 40 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Chicago to Washington D.C.
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Chicago to Washington D.C. take?
The Flight from Chicago to Washington D.C. takes 4h 49m door to door, of which 1h 39m is spent moving. The route runs 985 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Chicago to Washington D.C. cost?
The Flight from Chicago to Washington D.C. starts at €97.49 for one passenger, checked on September 29, 2026. A typical fare is €98.97. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Chicago to Washington D.C.?
5 operators run the Flight from Chicago to Washington D.C.: American Airlines, American Eagle Airlines, United Airlines, Southwest Airlines, Republic Airways. Between them they file around 40 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Chicago to Washington D.C. use?
The Flight from Chicago to Washington D.C. leaves from Chicago ORD and arrives at Washington DCA. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Chicago to Washington D.C.?
Fares for the Flight from Chicago to Washington D.C. bottom out around 60 days ahead, at €67.40. The gap between the cheapest and most expensive lead time across the window is 209 percent, measured on September 29, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Chicago to Washington D.C. produce?
The Flight from Chicago to Washington D.C. produces about 242.3 kg of CO2 per passenger over 985 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Chicago to Washington D.C. on September 10, 2026: 985 km of route against 956 km in a straight line, 40 services a day, 5 operators, a cheapest fare of €97.49, and 4h 49m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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