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 $89. Users have also found prices from $90 and $90 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 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 $449, 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 $195 for that flight.

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 most popular airlines that fly from Illinois to Washington, D.C. Reagan-National Airport?

The most popular airlines flying from Illinois to Washington, D.C. Reagan-National Airport are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

How far in advance should I book a flight from Illinois to Washington, D.C. Reagan-National Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 33 days in advance, which can save you up to 34% on flights from Illinois to Washington, D.C. Reagan-National Airport compared to booking the week you need them. Waiting 33 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $226. For sooner than that we have options available in the next 3 days from $399.

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

Flights from Illinois to Washington, D.C. Reagan-National Airport lean towards being more expensive in June. Prices are generally better when you fly from Illinois to Washington, D.C. Reagan-National Airport in September, with the cheapest ticket starting at $62.

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.

$89+ Flights from Illinois to Washington, D.C. Reagan-National Airport - Compare & Save Big

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Cheap flight deals from Illinois to Reagan-National

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$179 (American Airlines)
One-way from	$89 (Frontier)
Popular in	June
Cheapest in	September
Average price	$256
Good round-trip deal	$229 or less
Good one-way deal	$143 or less

Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.

Search Deals

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. 1% potential price decrease ($4 potential savings vs. average RT price).

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Average for round-trip flights in April 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 April 25, 2025.

Fri 5/307:11 pmORD - DCA

Nonstop2h 04mAmerican Airlines

Sat 5/319:00 pmDCA - ORD

Nonstop2h 11mAmerican Airlines

Deal found 4/25

$179

Tue 5/207:10 amMDW - DCA

Nonstop1h 50mSouthwest

Wed 5/218:55 pmDCA - MDW

Nonstop2h 00mSouthwest

Deal found 4/25

$179

Thu 5/88:03 pmMDW - DCA

1 stop15h 04mFrontier

Sun 5/117:00 amDCA - MDW

1 stop13h 08mFrontier

Deal found 4/24

$181

Sun 5/256:00 amORD - DCA

1 stop9h 59mFrontier

Wed 5/281:00 pmDCA - ORD

1 stop11h 52mFrontier

Deal found 4/24

$188

Tue 5/204:03 pmORD - DCA

1 stop5h 55mJetBlue

Wed 5/2112:45 pmDCA - ORD

1 stop6h 51mJetBlue

Deal found 4/24

$193

Sat 5/245:30 amORD - DCA

1 stop6h 13mDelta

Sun 5/256:00 amDCA - ORD

1 stop4h 18mDelta

Deal found 4/24

$197

Tue 5/274:01 pmSTL - DCA

Nonstop1h 58mAmerican Airlines

Sat 5/318:00 pmDCA - STL

Nonstop2h 42mAmerican Airlines

Deal found 4/25

$204

Fri 5/301:55 pmORD - DCA

Nonstop2h 06mUnited Airlines

Mon 6/28:00 pmDCA - ORD

Nonstop2h 16mUnited Airlines

Deal found 4/24

$204

Mon 4/286:58 pmSTL - DCA

1 stop16h 11mFrontier

Sun 5/47:00 amDCA - STL

1 stop27h 09mFrontier

Deal found 4/23

$208

Sat 5/245:17 pmSTL - DCA

1 stop3h 53mDelta

Sat 5/317:59 amDCA - STL

1 stop4h 55mDelta

Deal found 4/25

$217

Wed 5/2812:48 pmMDW - DCA

1 stop6h 48mDelta

Fri 5/306:00 amDCA - MDW

1 stop3h 40mDelta

Deal found 4/25

$217

Tue 5/275:27 pmSTL - DCA

1 stop4h 15mUnited Airlines

Wed 5/287:00 amDCA - STL

1 stop4h 49mUnited Airlines

Deal found 4/25

$219

Best flights from Illinois to Reagan-National
Discover carefully curated flight deals from Illinois to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 25, 2025.

Fri 5/307:11 pmORD - DCA

Nonstop2h 04mAmerican Airlines

Sat 5/319:00 pmDCA - ORD

Nonstop2h 11mAmerican Airlines

Deal found 4/25

$179

Tue 5/207:10 amMDW - DCA

Nonstop1h 50mSouthwest

Wed 5/218:55 pmDCA - MDW

Nonstop2h 00mSouthwest

Deal found 4/25

$179

Thu 5/88:03 pmMDW - DCA

1 stop15h 04mFrontier

Sun 5/117:00 amDCA - MDW

1 stop13h 08mFrontier

Deal found 4/24

$181

Tue 5/204:03 pmORD - DCA

1 stop5h 55mJetBlue

Wed 5/2112:45 pmDCA - ORD

1 stop6h 51mJetBlue

Deal found 4/24

$193

Sat 5/243:43 pmORD - DCA

1 stop5h 18mDelta

Sat 5/316:32 pmDCA - ORD

1 stop3h 28mDelta

Deal found 4/24

$198

Fri 5/301:55 pmORD - DCA

Nonstop2h 06mUnited Airlines

Mon 6/28:00 pmDCA - ORD

Nonstop2h 16mUnited Airlines

Deal found 4/24

$204

Sun 5/256:00 amORD - DCA

1 stop9h 59mFrontier

Wed 5/281:00 pmDCA - ORD

1 stop11h 52mFrontier

Deal found 4/24

$188

Tue 5/277:00 amDBQ - DCA

1 stop24h 57mMultiple Airlines

Sat 5/317:11 pmDCA - DBQ

1 stop23h 44mMultiple Airlines

Deal found 4/25

$376

Tue 5/274:01 pmSTL - DCA

Nonstop1h 58mAmerican Airlines

Sat 5/318:00 pmDCA - STL

Nonstop2h 42mAmerican Airlines

Deal found 4/25

$204

Sat 5/243:40 pmSTL - DCA

1 stop3h 56mDelta

Fri 5/307:33 pmDCA - STL

1 stop5h 05mDelta

Deal found 4/25

$217

Tue 5/275:27 pmSTL - DCA

1 stop4h 15mUnited Airlines

Wed 5/287:00 amDCA - STL

1 stop4h 49mUnited Airlines

Deal found 4/25

$219

Wed 5/284:00 pmORD - DCA

1 stop5h 25mSouthwest

Fri 5/306:05 amDCA - ORD

1 stop7h 40mSouthwest

Deal found 4/23

$219

Last-minute flights from Illinois to Reagan-National
Discover last-minute flight deals from Illinois to Reagan-National. Data last updated April 25, 2025 and is based on user searches.

Mon 4/286:58 pmSTL - DCA

1 stop16h 11mFrontier

Sun 5/47:00 amDCA - STL

1 stop27h 09mFrontier

Deal found 4/23

$208

Wed 4/306:00 amCMI - DCA

1 stop3h 54mAmerican Airlines

Sat 5/311:54 amDCA - CMI

1 stop6h 28mAmerican Airlines

Deal found 4/25

$419

Fri 5/26:53 pmSTL - DCA

1 stop26h 06mFrontier

Sun 5/117:00 amDCA - STL

1 stop27h 09mFrontier

Deal found 4/24

$208

Fri 5/28:03 pmMDW - DCA

1 stop24h 56mFrontier

Sun 5/46:00 pmDCA - MDW

1 stop26h 08mFrontier

Deal found 4/24

$211

Fri 5/25:21 pmORD - DCA

1 stop17h 46mFrontier

Sun 5/47:00 amDCA - ORD

1 stop17h 41mFrontier

Deal found 4/24

$221

Fri 5/26:21 pmSTL - DCA

Nonstop2h 01mAmerican Airlines

Fri 5/308:15 amDCA - STL

Nonstop2h 27mAmerican Airlines

Deal found 4/25

$354

Sat 5/31:13 pmORD - DCA

1 stop8h 46mJetBlue

Mon 5/56:15 amDCA - ORD

1 stop6h 58mJetBlue

Deal found 4/25

$303

Sat 5/36:45 pmSTL - DCA

Nonstop2h 00mSouthwest

Sun 5/116:55 pmDCA - STL

Nonstop2h 15mSouthwest

Deal found 4/25

$399

Sat 5/33:02 pmORD - DCA

Nonstop1h 57mAmerican Airlines

Sat 5/109:30 amDCA - ORD

Nonstop2h 13mAmerican Airlines

Deal found 4/25

$399

Sat 5/34:00 pmBMI - DCA

1 stop6h 39mDelta

Sat 5/106:34 pmDCA - BMI

1 stop5h 13mDelta

Deal found 4/25

$399

Sat 5/34:15 pmSTL - DCA

1 stop5h 23mDelta

Mon 5/1210:20 amDCA - STL

1 stop5h 15mDelta

Deal found 4/25

$419

Sat 5/36:00 amORD - DCA

1 stop7h 45mSouthwest

Sat 5/107:25 amDCA - ORD

1 stop6h 40mSouthwest

Deal found 4/25

$419

One-way flights from Illinois to Reagan-National
Search for one-way flight options from Illinois to Reagan-National. Find affordable one-way fares based on user searches. Data last updated April 25, 2025.

Wed 5/286:00 amORD - DCA

1 stop9h 59mFrontier

Deal found 4/24

$89

Wed 5/286:00 pmORD - DCA

Nonstop2h 02mUnited Airlines

Deal found 4/24

$90

Thu 5/298:10 pmMDW - DCA

Nonstop1h 50mSouthwest

Deal found 4/24

$90

Wed 7/21:30 pmORD - DCA

1 stop6h 25mSouthwest

Deal found 4/24

$91

Tue 5/204:03 pmORD - DCA

1 stop5h 55mJetBlue

Deal found 4/25

$93

Thu 5/88:03 pmMDW - DCA

1 stop15h 04mFrontier

Deal found 4/24

$97

Sun 5/2510:30 amORD - DCA

1 stop5h 57mDelta

Deal found 4/25

$99

Sat 5/244:15 pmMDW - DCA

1 stop4h 26mDelta

Deal found 4/25

$99

Sat 5/2412:59 pmSTL - DCA

1 stop4h 23mDelta

Deal found 4/24

$100

Fri 7/47:55 amSTL - DCA

2 stops5h 30mSouthwest

Deal found 4/25

$105

Fri 7/185:44 pmSTL - DCA

Nonstop2h 01mAmerican Airlines

Deal found 4/25

$115

Mon 4/286:58 pmSTL - DCA

1 stop16h 11mFrontier

Deal found 4/25

$116

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 5/30

7:11 pm-10:15 pm

Nonstop2h 04m

Washington, D.C. Reagan-National

Sat 5/31

9:00 pm-10:11 pm

Nonstop2h 11m

$179

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Tue 5/20

7:10 am-10:00 am

Nonstop1h 50m

Washington, D.C. Reagan-National

Wed 5/21

8:55 pm-9:55 pm

Nonstop2h 00m

$179

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Thu 5/8

8:03 pm-12:07 pm

1 stop15h 04m

Washington, D.C. Reagan-National

Sun 5/11

7:00 am-7:08 pm

1 stop13h 08m

$181

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sun 5/25

6:00 am-4:59 pm

1 stop9h 59m

Washington, D.C. Reagan-National

Wed 5/28

1:00 pm-11:52 pm

1 stop11h 52m

$188

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 5/20

4:03 pm-10:58 pm

1 stop5h 55m

Washington, D.C. Reagan-National

Wed 5/21

12:45 pm-6:36 pm

1 stop6h 51m

$193

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 5/24

5:30 am-12:43 pm

1 stop6h 13m

Washington, D.C. Reagan-National

Sun 5/25

6:00 am-9:18 am

1 stop4h 18m

$197

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 5/30

1:55 pm-5:01 pm

Nonstop2h 06m

Washington, D.C. Reagan-National

Mon 6/2

8:00 pm-9:16 pm

Nonstop2h 16m

$204

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Tue 5/27

4:01 pm-6:59 pm

Nonstop1h 58m

Washington, D.C. Reagan-National

Sat 5/31

8:00 pm-9:42 pm

Nonstop2h 42m

$204

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Sat 5/24

3:40 pm-8:36 pm

1 stop3h 56m

Washington, D.C. Reagan-National

Fri 5/30

7:33 pm-11:38 pm

1 stop5h 05m

$217

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Wed 5/28

12:48 pm-8:36 pm

1 stop6h 48m

Washington, D.C. Reagan-National

Fri 5/30

6:00 am-8:40 am

1 stop3h 40m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 48 results

...

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 $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?

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

The most flights from USIL to DCA are scheduled on a Thursday (48 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

Rainfall in Reagan-National 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

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

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest 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.

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,927 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,289 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,920 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,685 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

JetBlue

7.3

Good

2,922 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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 $89. Users have also found prices from $90 and $90 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: 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 $449, 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 $195 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

Arlington

Alexandria

Woodbridge

Fairfax

Tysons

Springfield

Rockville

Fredericksburg

Gaithersburg

Silver Spring

Linthicum Heights

Falls Church

Laurel

Easton

Herndon

Bowie

Towson

National Harbor

Oxon Hill

Reston

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Illinois to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$68	Average$140	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$161	Average$383	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$166	Average$297	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$177	Average$317	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$179	Average$342	FlexibilityNo cancel fee	On-time69%

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$89+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Reagan-National with Cheapflights

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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 April 25, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Illinois to Reagan-National

Cheapest flights from Illinois to Reagan-NationalExplore 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 April 25, 2025.

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 April 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Washington, D.C. Reagan-National Airport that are best for you.

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.

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?

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 April 25, 2025.

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

Rainfall in Reagan-National by month

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

Temperature in Reagan-National by month

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

Reviews of airlines servicing Reagan-National

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest 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.

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?

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

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

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

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

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

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

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

Traveling to a place near Illinois?

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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.

Top 5 airlines flying from Illinois to Reagan-National

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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 April 25, 2025.