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Reagan-National

$90+ Cheap flights from Illinois to Reagan-National (DCA)

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DCA
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Illinois to Reagan-National

Keep the following information in mind while searching for Illinois to Reagan-National flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(American Airlines)

One-way from

$90
(United Airlines)

Popular in

June

Cheapest in

September

Average price

$223

Good round-trip deal

$229 or less

Good one-way deal

$126 or less
Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Washington, D.C. (WAS) flights.
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From Illinois to Washington, D.C. Reagan-National
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One-way flight from Illinois to Washington, D.C. Reagan-National
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Highest demand for flights based on searches. 3% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Illinois to Washington, D.C. Reagan-National.
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Price to beat on a one-way flight from Illinois to Washington, D.C. Reagan-National.
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Find flight deals from Illinois to Reagan-National

Cheapest flights from Illinois to Reagan-National
Explore the most affordable flight options available from Illinois to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/247:00 amORD - DCA
Nonstop1h 57mUnited Airlines
Wed 5/286:00 amDCA - ORD
1 stop5h 39mUnited Airlines
Deal found 4/30$180
This JetBlue deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/214:03 pmORD - DCA
1 stop5h 55mJetBlue
Wed 5/281:45 pmDCA - ORD
1 stop5h 51mJetBlue
Deal found 4/30$183
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/46:40 amORD - DCA
1 stop3h 38mAmerican Airlines
Wed 6/42:54 pmDCA - ORD
Nonstop2h 19mAmerican Airlines
Deal found 4/30$184
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/138:10 pmMDW - DCA
Nonstop1h 50mSouthwest
Sat 7/58:25 amDCA - MDW
Nonstop2h 05mSouthwest
Deal found 4/29$195
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:00 amORD - DCA
1 stop5h 40mDelta
Sat 7/56:40 amDCA - ORD
1 stop6h 23mDelta
Deal found 4/30$197
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/245:55 pmMDW - DCA
1 stop3h 15mDelta
Sun 5/256:00 amDCA - MDW
1 stop3h 40mDelta
Deal found 4/29$197
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:03 pmMDW - DCA
1 stop15h 04mFrontier
Sun 5/117:00 amDCA - MDW
1 stop13h 08mFrontier
Deal found 4/29$201
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2810:25 amSTL - DCA
Nonstop1h 59mAmerican Airlines
Wed 6/41:54 pmDCA - STL
Nonstop2h 17mAmerican Airlines
Deal found 4/30$204
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/283:35 pmSTL - DCA
Nonstop2h 00mSouthwest
Sat 5/312:25 pmDCA - STL
1 stop6h 35mSouthwest
Deal found 4/30$207
This Trip.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/38:15 pmSTL - DCA
1 stop14h 52mFrontier
Sun 5/117:00 amDCA - STL
1 stop27h 09mFrontier
Deal found 5/1$213
This Frontier deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/306:00 amORD - DCA
1 stop9h 59mFrontier
Mon 6/21:00 pmDCA - ORD
1 stop11h 59mFrontier
Deal found 5/1$218
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/289:50 amSTL - DCA
1 stop4h 58mUnited Airlines
Wed 6/47:00 pmDCA - STL
1 stop4h 45mUnited Airlines
Deal found 4/30$224

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Reagan-National that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Illinois to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Illinois

Fly to

Reagan-National

Route

Depart

Return

Price

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 5/24

7:00 am-9:57 am

Nonstop1h 57m

Washington, D.C. Reagan-National

Wed 5/28

6:00 am-10:39 am

1 stop5h 39m

$180

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 5/21

4:03 pm-10:58 pm

1 stop5h 55m

Washington, D.C. Reagan-National

Wed 5/28

1:45 pm-6:36 pm

1 stop5h 51m

$183

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 6/4

6:40 am-11:18 am

1 stop3h 38m

Washington, D.C. Reagan-National

Wed 6/4

2:54 pm-4:13 pm

Nonstop2h 19m

$184

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Fri 6/13

8:10 pm-11:00 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

Sat 7/5

8:25 am-9:30 am

Nonstop2h 05m

$195

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 7/1

6:00 am-12:40 pm

1 stop5h 40m

Washington, D.C. Reagan-National

Sat 7/5

6:40 am-12:03 pm

1 stop6h 23m

$197

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Sat 5/24

5:55 pm-10:10 pm

1 stop3h 15m

Washington, D.C. Reagan-National

Sun 5/25

6:00 am-8:40 am

1 stop3h 40m

$197

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Thu 5/15

8:03 pm-9:59 pm

1 stop24h 56m

Washington, D.C. Reagan-National

Mon 5/19

1:00 pm-7:08 pm

1 stop7h 08m

$201

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Wed 5/28

10:25 am-1:24 pm

Nonstop1h 59m

Washington, D.C. Reagan-National

Wed 6/4

1:54 pm-3:11 pm

Nonstop2h 17m

$204

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Wed 5/28

3:35 pm-6:35 pm

Nonstop2h 00m

Washington, D.C. Reagan-National

Sat 5/31

2:25 pm-8:00 pm

1 stop6h 35m

$207

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 5/30

6:00 am-4:59 pm

1 stop9h 59m

Washington, D.C. Reagan-National

Mon 6/2

1:00 pm-11:59 pm

1 stop11h 59m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 46 results
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Best time to book a flight from Illinois to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Illinois with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from Illinois to Washington, D.C. Reagan-National Airport?

Currently, February is the cheapest month in which you can book a flight from Illinois to Washington, D.C. Reagan-National Airport (average of $278). Flying from Illinois to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $344). 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 IL to DCA?

Find hourly flight availability from Illinois to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Washington, D.C. Reagan-National Airport as you normally would.

Weekly flight availability from Illinois to Washington, D.C. Reagan-National Airport

Explore weekly flight availability from Illinois to Reagan-National. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 1, 2025.

The most flights from USIL to DCA are scheduled on a Wednesday (48 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Reagan-National. Reviews last updated May 1, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Illinois to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Illinois to Reagan-National. 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 to fly from Illinois to Washington, D.C. Reagan-National Airport one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $90. Users have also found prices from $90 and $94 on Southwest and Frontier, respectively.

  • What are the most popular routes from Illinois to Washington, D.C. Reagan-National Airport?

    The most popular flight routes from Illinois to Washington, D.C. Reagan-National Airport are Chicago O'Hare Intl - Washington, D.C. Reagan-National, Chicago Midway - Washington, D.C. Reagan-National and Lambert-St Louis - Washington, D.C. Reagan-National.

  • What are the most reliable airlines from Illinois to Washington, D.C. Reagan-National Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Washington, D.C. Reagan-National Airport on time: ANA (77%), Republic Airways (74%), Air New Zealand (73%).

  • What are the cheapest flights from Illinois to Washington, D.C. Reagan-National Airport?

    While on average a flight from Illinois to Washington, D.C. Reagan-National Airport is generally $480, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Chicago O'Hare Intl - Washington, D.C. Reagan-National), you can expect to pay $161 for that flight.

  • Can I find deals for flights from Illinois to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Illinois to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Reagan-National.

  • Can I find deals for business class flights from Illinois to Reagan-National?

    Yes. Cheapflights offers flight deals from Illinois to Reagan-National 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 Illinois to Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Washington, D.C. Reagan-National Airport (average of $278). Flying from Illinois to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $344). 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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston

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Alternative routes for Illinois to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Boston to Reagan-National flights
Los Angeles to Baltimore flights
Dallas/Fort Worth to Baltimore flights
Dallas/Fort Worth to Reagan-National flights
San Francisco to Dulles Intl flights
Dallas/Fort Worth to Dulles Intl flights
Seattle to Reagan-National flights
Boston to Baltimore flights
Boston to Dulles Intl flights
San Francisco to Reagan-National flights
O'Hare Intl to Reagan-National flights
Seattle to Dulles Intl flights
O'Hare Intl to Baltimore flights
San Francisco to Baltimore flights
Atlanta to Baltimore flights
Hobby to Baltimore flights
Seattle to Baltimore flights
Atlanta to Dulles Intl flights
San Diego to Dulles Intl flights
Atlanta to Reagan-National flights
O'Hare Intl to Dulles Intl flights
Denver to Baltimore flights
Hobby to Reagan-National flights
Tampa to Dulles Intl flights
Ontario to Dulles Intl flights
George Bush Intcntl to Baltimore flights
San Diego to Reagan-National flights
Minneapolis to Dulles Intl flights
Portland to Dulles Intl flights
Orlando to Baltimore flights
Denver to Dulles Intl flights
Fort Lauderdale to Baltimore flights
Portland to Reagan-National flights
Minneapolis to Reagan-National flights
Midway to Dulles Intl flights
Tampa to Baltimore flights
Burbank to Baltimore flights
Hobby to Dulles Intl flights
Denver to Reagan-National flights
Orlando to Dulles Intl flights
Miami to Baltimore flights
John F Kennedy Intl to Dulles Intl flights
Austin to Dulles Intl flights
Austin to Baltimore flights
Tampa to Reagan-National flights
LaGuardia to Reagan-National flights
Orlando to Reagan-National flights
George Bush Intcntl to Dulles Intl flights

Top 5 airlines flying from Illinois to Reagan-National

Discover the top 5 airlines that operate flights from Illinois to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$140FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$160Average$383FlexibilityNo cancel feeOn-time71%
DeltaCheapest$166Average$277FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$178Average$319FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$182Average$333FlexibilityNo cancel feeOn-time69%

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