BA's World Traveller Plus offers extra seat width and legroom in a dedicated cabin.
BA's Executive Club offers free seat selection for oneworld Sapphire or Emerald members.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $158 (Southwest) |
One-way from | $81 (KAYAK) |
Popular in | November |
Cheapest in | June |
Average price | $317 |
Good round-trip deal | $309 or less |
Good one-way deal | $174 or less |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoWashington, D.C.
MDW - DCA
MDWDCA
Chicago Midway
Thu 1/8
1:25 pm-10:00 pm
2 stops7h 35m
Washington, D.C. Reagan-National
Mon 1/12
9:30 am-10:35 am
Nonstop2h 05m
ChicagoWashington, D.C.
MDW - DCA
MDWDCA
Chicago Midway
Thu 1/1
8:10 pm-10:55 pm
Nonstop1h 45m
Washington, D.C. Reagan-National
Thu 1/8
9:00 pm-10:15 pm
Nonstop2h 15m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Fri 1/23
9:02 am-2:39 pm
1 stop4h 37m
Washington, D.C. Reagan-National
Sun 1/25
10:30 am-11:46 am
Nonstop2h 16m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Fri 2/13
10:55 am-4:42 pm
1 stop4h 47m
Washington, D.C. Reagan-National
Tue 2/17
5:00 pm-6:24 pm
Nonstop2h 24m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Mon 1/12
12:38 pm-3:32 pm
Nonstop1h 54m
Washington, D.C. Reagan-National
Tue 1/13
12:00 pm-1:15 pm
Nonstop2h 15m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Tue 1/6
12:38 pm-3:32 pm
Nonstop1h 54m
Washington, D.C. Reagan-National
Mon 1/12
12:00 pm-1:15 pm
Nonstop2h 15m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Sat 2/14
11:15 am-2:13 pm
Nonstop1h 58m
Washington, D.C. Reagan-National
Wed 2/18
7:30 am-8:50 am
Nonstop2h 20m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Wed 1/7
12:38 pm-3:32 pm
Nonstop1h 54m
Washington, D.C. Reagan-National
Thu 1/15
12:00 pm-1:15 pm
Nonstop2h 15m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Fri 1/23
5:30 am-11:20 am
1 stop4h 50m
Washington, D.C. Reagan-National
Sat 1/24
10:15 am-2:24 pm
1 stop5h 09m
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Fri 1/23
5:59 pm-11:36 pm
1 stop4h 37m
Washington, D.C. Reagan-National
Wed 1/28
12:20 pm-4:55 pm
1 stop5h 35m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
To ensure you get the cheapest price possible for a flight from Chicago to Washington, D.C. Reagan-National Airport, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, June is the cheapest month in which you can book a flight from Chicago to Washington, D.C. Reagan-National Airport (average of $130). Flying from Chicago to Washington, D.C. Reagan-National Airport in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 3% on flights from Chicago to Washington, D.C. Reagan-National Airport by exploring options for tickets in the morning.
Travelers seeking maximum savings on their Chicago to Washington, D.C. Reagan-National Airport flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from CHI to DCA are scheduled on a Friday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).
About 20% of weekly flights between Chicago and Washington, D.C. have experienced delays in the past year, with the average delay time being 127 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Southwest have had the lowest number of delays on this route, with just 18% of flights being delayed.
Crew
Food
Boarding
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Boarding
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Boarding
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Boarding
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Boarding
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$85 | Average$168 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$152 | Average$268 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$196 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$170 | Average$274 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$192 | Average$300 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$195 | Average$315 | FlexibilityNo cancel fee | On-time69% |