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Reagan-National

$85+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DCA
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Illinois to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$161
(Frontier)

One-way from

$85
(Trip.com)

Popular in

March

Cheapest in

August

Average price

$281

Good round-trip deal

$229 or less

Good one-way deal

$114 or less
Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.
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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. 2% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 30, 2025.

This Frontier deal was found by Cheapflights users on 1/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/76:40 amMDW - DCA
1 stop9h 19mFrontier
Wed 3/126:00 pmDCA - MDW
1 stop7h 17mFrontier
Deal found 1/29$161
This Frontier deal was found by Cheapflights users on 1/28. 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.
Thu 2/67:25 amORD - DCA
1 stop8h 34mFrontier
Tue 2/111:01 pmDCA - ORD
1 stop10h 36mFrontier
Deal found 1/28$168
This Southwest deal was found by Cheapflights users on 1/30. 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.
Thu 2/209:15 amMDW - DCA
Nonstop1h 45mSouthwest
Thu 2/202:35 pmDCA - MDW
Nonstop2h 05mSouthwest
Deal found 1/30$172
This United Airlines deal was found by Cheapflights users on 1/30. 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 3/59:05 pmORD - DCA
Nonstop1h 52mUnited Airlines
Wed 3/128:30 amDCA - ORD
Nonstop2h 21mUnited Airlines
Deal found 1/30$177
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/121:20 pmORD - DCA
Nonstop1h 54mAmerican Airlines
Sat 2/156:59 amDCA - ORD
Nonstop2h 21mAmerican Airlines
Deal found 1/28$179
This JetBlue deal was found by Cheapflights users on 1/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/231:22 pmORD - DCA
1 stop6h 37mJetBlue
Sat 4/267:00 amDCA - ORD
1 stop6h 27mJetBlue
Deal found 1/29$183
This Delta deal was found by Cheapflights users on 1/30. 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.
Thu 2/206:15 pmORD - DCA
1 stop4h 08mDelta
Mon 2/246:00 amDCA - ORD
1 stop5h 49mDelta
Deal found 1/30$197
This Southwest deal was found by Cheapflights users on 1/29. 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.
Tue 2/181:45 pmORD - DCA
1 stop8h 10mSouthwest
Sat 2/2211:10 amDCA - ORD
1 stop6h 35mSouthwest
Deal found 1/29$199
This Delta deal was found by Cheapflights users on 1/30. 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.
Sat 3/15:05 pmMDW - DCA
1 stop4h 23mDelta
Mon 3/39:55 amDCA - MDW
1 stop4h 10mDelta
Deal found 1/30$217
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 2/275:35 pmMLI - DCA
1 stop5h 22mUnited Airlines
Tue 3/46:25 amDCA - MLI
1 stop4h 59mUnited Airlines
Deal found 1/28$224
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/55:20 pmPIA - DCA
1 stop5h 37mUnited Airlines
Sat 3/86:20 amDCA - PIA
1 stop5h 04mUnited Airlines
Deal found 1/29$224
This American Airlines deal was found by Cheapflights users on 1/30. 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.
Tue 2/256:04 amSTL - DCA
Nonstop2h 15mAmerican Airlines
Fri 2/286:26 amDCA - STL
1 stop6h 08mAmerican Airlines
Deal found 1/30$228

Find flights from Illinois to Reagan-National within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Fri 3/7

6:40 am-4:59 pm

1 stop9h 19m

Washington, D.C. Reagan-National

Wed 3/12

6:00 pm-12:17 am

1 stop7h 17m

$161

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 2/20

6:50 am-4:59 pm

1 stop9h 09m

Washington, D.C. Reagan-National

Mon 2/24

5:55 pm-10:36 pm

1 stop5h 41m

$170

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Thu 2/20

9:15 am-12:00 pm

Nonstop1h 45m

Washington, D.C. Reagan-National

Thu 2/20

2:35 pm-3:40 pm

Nonstop2h 05m

$172

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 2/20

6:06 am-8:54 am

Nonstop1h 48m

Washington, D.C. Reagan-National

Thu 2/20

8:30 pm-9:54 pm

Nonstop2h 24m

$177

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 2/20

4:00 pm-7:02 pm

Nonstop2h 02m

Washington, D.C. Reagan-National

Sat 2/22

7:44 am-9:05 am

Nonstop2h 21m

$178

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 5/1

1:12 pm-10:59 pm

1 stop8h 47m

Washington, D.C. Reagan-National

Sun 5/4

6:30 am-12:17 pm

1 stop6h 47m

$183

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 2/20

6:15 pm-11:23 pm

1 stop4h 08m

Washington, D.C. Reagan-National

Mon 2/24

6:00 am-10:49 am

1 stop5h 49m

$197

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 2/20

7:30 am-6:05 pm

1 stop9h 35m

Washington, D.C. Reagan-National

Mon 2/24

12:10 pm-10:20 pm

2 stops11h 10m

$202

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Sat 3/1

5:05 pm-10:28 pm

1 stop4h 23m

Washington, D.C. Reagan-National

Tue 3/4

9:55 am-1:05 pm

1 stop4h 10m

$214

MolineWashington, D.C.

MLI - DCA

MLIDCA

Moline Quad-City

Thu 2/27

5:35 pm-11:57 pm

1 stop5h 22m

Washington, D.C. Reagan-National

Tue 3/4

6:25 am-10:24 am

1 stop4h 59m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 50 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.

Travel insights for flights from Illinois to Reagan-National

Get recent, data-driven insights about flights from Illinois to Reagan-National including ideal travel times, pricing trends, and more.

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 $345). 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 January 30, 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 January 30, 2025.

The most flights from USIL to DCA are scheduled on a Thursday (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 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 January 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta 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
8.1
Very good
4,585 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,686 reviews
Southwest
8.1
Very good
4,585 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,450 reviews
Southwest
8.1
Very good
4,585 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,153 reviews
Southwest
8.1
Very good
4,585 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,906 reviews
Southwest
8.1
Very good
4,585 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Frontier. According to our data, you can fly for as low as $85. Users have also found prices from $89 and $89 on United Airlines and Southwest, 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: Republic Airways (87%), SkyWest Airlines (86%), American Airlines (82%).

  • 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 $845, our data shows the cheapest flight currently is $98. When looking at the most popular route, (Chicago O'Hare Intl - Washington, D.C. Reagan-National), you can expect to pay $128 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 $345). 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
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston
National Harbor
Greenbelt

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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.
Dallas/Fort Worth to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Dallas/Fort Worth to Reagan-National flights
Boston to Dulles Intl flights
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Los Angeles to Baltimore flights
Boston to Reagan-National flights
San Francisco to Dulles Intl flights
Atlanta to Reagan-National flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Reagan-National flights
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Boston to Baltimore flights
Seattle to Dulles Intl flights
Tampa to Dulles Intl flights
O'Hare Intl to Baltimore flights
Minneapolis to Baltimore flights
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Seattle to Baltimore flights
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Hobby to Reagan-National flights
Orlando to Baltimore flights
Denver to Baltimore flights
Miami to Reagan-National flights
Hobby to Dulles Intl flights
Fort Lauderdale to Baltimore flights
Austin to Dulles Intl flights
Detroit to Dulles Intl flights
Minneapolis to Dulles Intl flights
Newark to Dulles Intl flights
Tampa to Reagan-National flights
Orlando to Reagan-National flights
LaGuardia to Dulles Intl flights
George Bush Intcntl to Dulles Intl flights
John F Kennedy Intl to Dulles Intl flights
Newark to Reagan-National flights
Miami to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Denver to Reagan-National flights
George Bush Intcntl to Baltimore flights
John F Kennedy Intl to Reagan-National flights
Burbank to Baltimore flights
Miami to Baltimore 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$114FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$155Average$386FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$172Average$325FlexibilityNo cancel feeOn-time69%
DeltaCheapest$175Average$361FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$177Average$321FlexibilityNo cancel feeOn-time63%
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