What are the cheapest airlines flying from Chicago to Washington, D.C. round-trip?

Spirit Airlines, at £115, was found to be the cheapest airline from Chicago to Washington, D.C..Alternate airlines flying return to your destination include American Airlines and Southwest. Spirit Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Chicago to Washington, D.C. one-way?

One-way options have recently been found by users for as low as £59 on Frontier. Other airlines that offer cheap prices include Southwest from £62 and United Airlines from £69 one-way.

What is the cheapest day to fly from Chicago to Washington, D.C.?

Travellers seeking maximum savings on their Chicago to Washington, D.C. flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Chicago to Washington, D.C.?

The most popular route from Chicago to Washington, D.C. is Chicago O'Hare Intl - Washington, D.C. Reagan-National. You may also consider Chicago O'Hare Intl - Washington, D.C. Dulles Intl or Chicago O'Hare Intl - Baltimore/Washington.

What are the most reliable airlines from Chicago to Washington, D.C.?

Before booking your flight to Washington, D.C. from Chicago, check out the most reliable airlines to get you to your destination on time: Avianca (90%), Air China (89%), ANA( 84%).

What is the cheapest day to fly round-trip from Chicago to Washington, D.C.?

Users have found that flying from Chicago to Washington, D.C. on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Chicago to Washington, D.C.?

To save up to 55% on this flight, we recommend booking at least 58 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Chicago to Washington, D.C. from £173 1-2 weeks out and tickets from £314 for flights departing within the next 72 hours.

What is the cheapest month to fly from Chicago to Washington, D.C.?

The best pricing can be found in the month of August. Prices to Washington, D.C. from Chicago average £181. You can even find prices in August for less than £181, as users have found deals to Washington, D.C. from as low as £51. The month of March appears to be one of the more expensive times to travel to Washington, D.C. from Chicago. Flying in the targeted month can save you up to 15%.

Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Chicago to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Chicago to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Washington, D.C..

Can I find deals for business class flights from Chicago to Washington, D.C.?

Yes. Cheapflights offers flight deals from Chicago to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£59+ Flights from Chicago to Washington, D.C.

The best prices from Chicago to Washington, D.C. are usually found in August or September, booked 63 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Chicago to Washington, D.C.

Round-trip from	£115
One-way from	£59
Popular in	March
Cheapest in	August
Average price	£209
Good one-way deal	£69 or less

Spirit Airlines
23/4-30/4
4 total stops
59h 04m total
Chicago to Washington, D.C.

Search Deals

Frontier
9/4
1 total stop
8h 09m total
Chicago to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£5 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a one-way flight from Chicago (CHI) to Washington, D.C. (WAS).

Search Deals

Find flight deals from Chicago to Washington, D.C.

Cheapest flights from Chicago to Washington, D.C.
Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2025.

Tue 1/406:45ORD - BWI

1 stop6h 33mSpirit Airlines

Tue 1/421:20BWI - ORD

1 stop13h 39mSpirit Airlines

Deal found 10/3£118

Sat 3/513:30ORD - BWI

Nonstop2h 00mSouthwest

Mon 5/510:35BWI - ORD

Nonstop2h 15mSouthwest

Deal found 11/3£130

Wed 2/410:00ORD - DCA

Nonstop1h 57mUnited Airlines

Mon 7/413:00DCA - ORD

Nonstop2h 15mUnited Airlines

Deal found 11/3£137

Wed 2/408:45ORD - IAD

Nonstop1h 59mUnited Airlines

Mon 7/422:20IAD - ORD

Nonstop2h 09mUnited Airlines

Deal found 10/3£137

Thu 3/418:35ORD - BWI

Nonstop2h 07mUnited Airlines

Sat 5/417:07BWI - ORD

Nonstop2h 18mUnited Airlines

Deal found 10/3£138

Thu 8/516:03ORD - DCA

1 stop5h 56mJetBlue

Tue 13/511:15DCA - ORD

1 stop8h 17mJetBlue

Deal found 11/3£142

Tue 1/417:00ORD - DCA

1 stop5h 16mDelta

Wed 2/412:17DCA - ORD

1 stop4h 58mDelta

Deal found 11/3£153

Fri 25/417:36ORD - BWI

1 stop5h 23mMultiple Airlines

Sun 27/419:40BWI - ORD

1 stop13h 24mMultiple Airlines

Deal found 10/3£155

Mon 31/313:50ORD - DCA

2 stops8h 10mSouthwest

Wed 2/406:05DCA - ORD

1 stop7h 40mSouthwest

Deal found 10/3£157

Tue 1/408:22ORD - DCA

1 stop4h 24mAmerican Airlines

Tue 1/414:54DCA - ORD

Nonstop2h 21mAmerican Airlines

Deal found 10/3£159

Wed 16/409:30ORD - IAD

1 stop6h 09mDelta

Sun 20/406:00IAD - ORD

1 stop5h 03mDelta

Deal found 11/3£160

Fri 25/408:50ORD - BWI

1 stop4h 53mDelta

Mon 28/415:43BWI - ORD

1 stop6h 48mDelta

Deal found 10/3£168

Best flights from Chicago to Washington, D.C.
Discover carefully curated flight deals from Chicago to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 March 2025.

Wed 23/419:47ORD - BWI

2 stops25h 30mSpirit Airlines

Wed 30/411:25BWI - ORD

2 stops33h 34mSpirit Airlines

Deal found 9/3£115

Wed 23/407:15ORD - BWI

Nonstop2h 04mAmerican Airlines

Wed 30/410:59BWI - ORD

Nonstop2h 25mAmerican Airlines

Deal found 9/3£124

Tue 8/413:50ORD - BWI

Nonstop1h 55mSouthwest

Tue 15/410:35BWI - ORD

Nonstop2h 15mSouthwest

Deal found 9/3£130

Thu 10/409:00ORD - DCA

Nonstop1h 57mUnited Airlines

Wed 16/417:00DCA - ORD

Nonstop2h 14mUnited Airlines

Deal found 10/3£137

Wed 23/409:28ORD - BWI

1 stop10h 17mMultiple Airlines

Wed 30/419:40BWI - ORD

1 stop13h 24mMultiple Airlines

Deal found 9/3£139

Fri 2/513:13ORD - DCA

1 stop8h 46mJetBlue

Sat 3/506:15DCA - ORD

1 stop6h 58mJetBlue

Deal found 10/3£142

Tue 29/413:15ORD - BWI

1 stop7h 41mDelta

Sat 3/515:43BWI - ORD

1 stop5h 27mDelta

Deal found 9/3£153

Thu 1/520:05ORD - BWI

1 stop14h 25mSun Country Air

Mon 5/512:30BWI - ORD

1 stop7h 39mSun Country Air

Deal found 9/3£229

Fri 28/306:30ORD - DCA

1 stop9h 29mFrontier

Sun 30/313:03DCA - ORD

1 stop12h 20mFrontier

Deal found 8/3£273

Wed 2/408:45ORD - IAD

Nonstop1h 59mUnited Airlines

Mon 7/422:20IAD - ORD

Nonstop2h 09mUnited Airlines

Deal found 10/3£137

Thu 3/418:35ORD - BWI

Nonstop2h 07mUnited Airlines

Sat 5/417:07BWI - ORD

Nonstop2h 18mUnited Airlines

Deal found 10/3£138

Mon 31/316:27ORD - DCA

1 stop6h 23mDelta

Wed 2/417:43DCA - ORD

1 stop4h 01mDelta

Deal found 10/3£153

Direct flights from Chicago to Washington, D.C.
Explore direct flight options from Chicago to Washington, D.C. based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 March 2025.

Sat 12/413:30ORD - BWI

Nonstop2h 00mSouthwest

Tue 15/410:35BWI - ORD

Nonstop2h 15mSouthwest

Deal found 9/3£123

Wed 23/407:15ORD - BWI

Nonstop2h 04mAmerican Airlines

Wed 30/410:59BWI - ORD

Nonstop2h 25mAmerican Airlines

Deal found 9/3£124

Thu 10/409:00ORD - DCA

Nonstop1h 57mUnited Airlines

Wed 16/417:00DCA - ORD

Nonstop2h 14mUnited Airlines

Deal found 10/3£137

Tue 1/416:15ORD - IAD

Nonstop2h 02mUnited Airlines

Tue 8/415:30IAD - ORD

Nonstop2h 14mUnited Airlines

Deal found 10/3£137

Thu 3/418:35ORD - BWI

Nonstop2h 07mUnited Airlines

Sat 5/417:07BWI - ORD

Nonstop2h 18mUnited Airlines

Deal found 10/3£138

Tue 1/406:05ORD - DCA

Nonstop1h 50mAmerican Airlines

Tue 1/414:54DCA - ORD

Nonstop2h 21mAmerican Airlines

Deal found 10/3£175

Last-minute flights from Chicago to Washington, D.C.
Discover last-minute flight deals from Chicago to Washington, D.C.. Data last updated 11 March 2025 and is based on user searches.

Sun 16/308:35ORD - IAD

2 stops12h 39mAlaska Airlines

Mon 17/317:20IAD - ORD

2 stops25h 24mAlaska Airlines

Deal found 10/3£20,514

Mon 17/313:00ORD - DCA

1 stop6h 59mJetBlue

Thu 20/309:29DCA - ORD

1 stop8h 01mJetBlue

Deal found 10/3£339

Mon 17/305:45ORD - IAD

1 stop6h 08mDelta

Mon 24/315:05IAD - ORD

1 stop7h 42mDelta

Deal found 10/3£391

Tue 18/316:00ORD - BWI

Nonstop1h 55mSouthwest

Wed 19/311:45BWI - ORD

Nonstop2h 20mSouthwest

Deal found 10/3£246

Tue 18/309:47ORD - BWI

1 stop4h 53mDelta

Sat 29/306:00BWI - ORD

1 stop4h 18mDelta

Deal found 10/3£250

Tue 18/307:00ORD - BWI

Nonstop1h 55mUnited Airlines

Wed 26/306:45BWI - ORD

Nonstop2h 20mUnited Airlines

Deal found 10/3£266

Tue 18/310:15ORD - DCA

Nonstop2h 02mUnited Airlines

Tue 18/316:00DCA - ORD

1 stop8h 09mUnited Airlines

Deal found 10/3£284

Tue 18/312:00ORD - IAD

1 stop3h 57mAmerican Airlines

Thu 20/306:27IAD - ORD

1 stop7h 05mAmerican Airlines

Deal found 10/3£391

Wed 19/316:05ORD - IAD

Nonstop1h 52mUnited Airlines

Wed 19/322:08IAD - ORD

1 stop10h 49mUnited Airlines

Deal found 10/3£250

Wed 19/311:55ORD - DCA

Nonstop1h 47mAmerican Airlines

Thu 20/309:21DCA - ORD

Nonstop2h 17mAmerican Airlines

Deal found 10/3£376

Thu 20/307:00ORD - DCA

2 stops10h 55mSouthwest

Mon 24/315:30DCA - ORD

1 stop7h 30mSouthwest

Deal found 11/3£367

Fri 21/313:26ORD - DCA

1 stop4h 53mDelta

Wed 26/306:00DCA - ORD

1 stop5h 10mDelta

Deal found 9/3£391

One-way flights from Chicago to Washington, D.C.
Search for one-way flight options from Chicago to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 11 March 2025.

Wed 9/408:50ORD - BWI

1 stop8h 09mFrontier

Deal found 9/3£59

Tue 6/513:50ORD - BWI

Nonstop1h 55mSouthwest

Deal found 10/3£62

Wed 23/411:15ORD - DCA

Nonstop1h 56mUnited Airlines

Deal found 10/3£69

Thu 10/416:15ORD - IAD

Nonstop2h 02mUnited Airlines

Deal found 10/3£69

Tue 13/516:03ORD - DCA

1 stop5h 56mJetBlue

Deal found 11/3£71

Tue 1/705:10ORD - IAD

1 stop10h 07mFrontier

Deal found 10/3£75

Sat 19/406:35ORD - BWI

1 stop7h 08mDelta

Deal found 10/3£77

Tue 1/412:20ORD - DCA

1 stop5h 07mDelta

Deal found 11/3£77

Wed 16/409:30ORD - IAD

1 stop6h 09mDelta

Deal found 10/3£77

Thu 10/407:30ORD - DCA

2 stops9h 50mSouthwest

Deal found 10/3£81

Tue 22/411:20ORD - BWI

Nonstop1h 58mUnited Airlines

Deal found 10/3£82

Wed 27/808:19ORD - DCA

Nonstop1h 52mAmerican Airlines

Deal found 10/3£90

Find flights from Chicago to Washington, D.C. within your budget

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 23/4

19:47-22:17

2 stops25h 30m

Baltimore/Washington

Wed 30/4

11:25-19:59

2 stops33h 34m

£115

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 23/4

07:15-10:19

Nonstop2h 04m

Baltimore/Washington

Wed 30/4

10:59-12:24

Nonstop2h 25m

£124

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 8/4

13:50-16:45

Nonstop1h 55m

Baltimore/Washington

Tue 15/4

10:35-11:50

Nonstop2h 15m

£130

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 2/4

10:00-12:57

Nonstop1h 57m

Washington, D.C. Reagan-National

Mon 7/4

13:00-14:15

Nonstop2h 15m

£137

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Tue 1/4

16:15-19:17

Nonstop2h 02m

Washington, D.C. Dulles Intl

Tue 8/4

15:30-16:44

Nonstop2h 14m

£137

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 3/4

18:35-21:42

Nonstop2h 07m

Baltimore/Washington

Sat 5/4

17:07-18:25

Nonstop2h 18m

£138

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 23/4

09:28-20:45

1 stop10h 17m

Baltimore/Washington

Wed 30/4

19:40-08:04

1 stop13h 24m

£139

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 8/5

16:03-22:59

1 stop5h 56m

Washington, D.C. Reagan-National

Tue 13/5

11:15-18:32

1 stop8h 17m

£142

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 29/4

13:15-21:56

1 stop7h 41m

Baltimore/Washington

Sat 3/5

15:43-20:10

1 stop5h 27m

£153

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 1/4

17:00-23:16

1 stop5h 16m

Washington, D.C. Reagan-National

Wed 2/4

12:17-16:15

1 stop4h 58m

£153

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 33 results

Best time to book a flight from Chicago to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Chicago with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Chicago to Washington, D.C.

Get recent, data-driven insights about flights from Chicago to Washington, D.C. including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Chicago to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from Chicago to Washington, D.C., you should look to book at least 63 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.

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of £599). Flying from Chicago to Washington, D.C. in July is currently the most expensive (average of £947). 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.

What is the cheapest time of day to fly from CHI to WAS?

When flying from Chicago to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 76% versus a flight at midday.

Weekly flight availability from Chicago to Washington, D.C.

The most flights from CHI to WAS are scheduled on a Monday (77 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

To help decide which airline to fly from Chicago to Washington, D.C., see what other customers have to say about Southwest, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very Good

4,300 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.1

Very Good

4,300 reviews

Southwest

8.1

Very Good

4,300 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines

8.0

Very Good

9,732 reviews

Southwest

8.1

Very Good

4,300 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very Good

7,973 reviews

Southwest

8.1

Very Good

4,300 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Qatar Airways

7.4

Good

3,545 reviews

Southwest

8.1

Very Good

4,300 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,631 reviews

Southwest

8.1

Very Good

4,300 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

What are the cheapest airlines flying from Chicago to Washington, D.C. round-trip?
Spirit Airlines, at £115, was found to be the cheapest airline from Chicago to Washington, D.C..Alternate airlines flying return to your destination include American Airlines and Southwest. Spirit Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Chicago to Washington, D.C. one-way?
One-way options have recently been found by users for as low as £59 on Frontier. Other airlines that offer cheap prices include Southwest from £62 and United Airlines from £69 one-way.
What are the most popular routes from Chicago to Washington, D.C.?
The most popular route from Chicago to Washington, D.C. is Chicago O'Hare Intl - Washington, D.C. Reagan-National. You may also consider Chicago O'Hare Intl - Washington, D.C. Dulles Intl or Chicago O'Hare Intl - Baltimore/Washington.
What are the most reliable airlines from Chicago to Washington, D.C.?
Before booking your flight to Washington, D.C. from Chicago, check out the most reliable airlines to get you to your destination on time: Avianca (90%), Air China (89%), ANA( 84%).
Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Chicago to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chicago to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Washington, D.C..
Can I find deals for business class flights from Chicago to Washington, D.C.?
Yes. Cheapflights offers flight deals from Chicago to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Chicago to Washington, D.C.?
Currently, January is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of £599). Flying from Chicago to Washington, D.C. in July is currently the most expensive (average of £947). 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.

See more FAQs

Silver Spring

Arlington

Woodbridge

College Park

Laurel

Tysons

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Washington, D.C. Dulles Intl Airport car hire

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Dupont Circle car hire

Capitol Hill car hire

Georgetown car hire

Downtown car hire

Foggy Bottom - West End car hire

Southwest Waterfront car hire

Columbia Heights car hire

Adams Morgan car hire

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Cheap flights from Chicago to Washington, D.C. from £59

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from Chicago to Washington, D.C. are usually found in August or September, booked 63 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Chicago to Washington, D.C.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Find flight deals from Chicago to Washington, D.C.

Cheapest flights from Chicago to Washington, D.C.Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2025.

Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2025.

Find flights from Chicago to Washington, D.C. within your budget

Best time to book a flight from Chicago to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Chicago with our price prediction graph.

Travel insights for flights from Chicago to Washington, D.C.

Get recent, data-driven insights about flights from Chicago to Washington, D.C. including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Chicago to Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from Chicago to Washington, D.C.. Price data was last updated on 7 March 2025.

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

What is the cheapest time of day to fly from CHI to WAS?

Find hourly flight availability from Chicago to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 March 2025.

Weekly flight availability from Chicago to Washington, D.C.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

To help decide which airline to fly from Chicago to Washington, D.C., see what other customers have to say about Southwest, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Chicago to Washington, D.C. round-trip?

What are the cheapest airlines to fly from Chicago to Washington, D.C. one-way?

What are the most popular routes from Chicago to Washington, D.C.?

What are the most reliable airlines from Chicago to Washington, D.C.?

Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?

How can I find direct flights from Chicago to Washington, D.C.?

Can I find deals for business class flights from Chicago to Washington, D.C.?

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

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Cheapest flights from Chicago to Washington, D.C.
Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2025.