How much does it cost to fly round-trip from Chicago to Washington, D.C. Reagan-National Airport?

Airfare is below average for this route at the moment. Chicago to Washington, D.C. Reagan-National Airport flights typically cost between $217 and $419 in November. The cheapest round-trip price found within the last 3 days was $133 on Southwest (Nov 13-Nov 19).

How long is the flight from Chicago to Washington, D.C. Reagan-National Airport?

Departing from Chicago to Washington, D.C. Reagan-National Airport will take you 1h 50m. Airlines will cover a distance of 599 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

According to our current data, Frontier ($105), American Airlines ($157), and Delta ($166) offers the cheapest pricing from Chicago to Washington, D.C. Reagan-National Airport. You may be able to fly from Chicago to Washington, D.C. Reagan-National Airport for 62% less than the average price by searching for these airlines.

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

To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $82. Delta flights start at $99 while deals on JetBlue start at $102 one-way.

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

To ensure you get the cheapest price possible for a flight from Chicago to Washington, D.C. Reagan-National Airport, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Chicago to Washington, D.C. Reagan-National Airport (average of $278). Flying from Chicago to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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 day to fly from Chicago to Washington, D.C. Reagan-National Airport?

Travelers seeking maximum savings on their Chicago to Washington, D.C. Reagan-National Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

The most flights from CHI to DCA are scheduled on a Monday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (39 on average).

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.

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).

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

Looking for the cheapest flight from Chicago to Washington, D.C. Reagan-National Airport? While on average our users pay $747, our data indicates the cheapest price to be $96. The most popular route (Chicago O'Hare Intl - Washington, D.C. Reagan-National), is priced around $133.

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

The top 3 most reliable airlines when flying from Chicago to Washington, D.C. Reagan-National Airport are United Airlines (71%), Air New Zealand (67%) and American Airlines (58%).

What are the most popular airlines that fly from Chicago to Washington, D.C. Reagan-National Airport?

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Chicago to Washington, D.C. Reagan-National Airport.

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

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 31% on the overall cost on flights from Chicago to Washington, D.C. Reagan-National Airport.

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

Travelers have found it’s best to book a flight 42 days in advance to save up to 86% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 42 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Chicago to Washington, D.C. Reagan-National Airport 1-2 weeks in advance for as low as $176, or $300 for flights within the next 24 hours.

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

August can be a great time to fly to Washington, D.C. Reagan-National Airport from Chicago with a flight ticket averaging about $226. Cheapflights users have found deals in the month of August for as cheap as $99. The most expensive prices can be found in the month of January.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 13% on flights from Chicago to Washington, D.C. Reagan-National Airport by exploring options for tickets in the evening.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Chicago 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.

$82+ Flights from Chicago to Washington, D.C. Reagan-National Airport

Round-trip from	$133 (Southwest)
One-way from	$82 (Southwest)
Popular in	October
Cheapest in	August
Average price	$301
Good round-trip deal	$240 or less
Good one-way deal	$112 or less

Basic Economy on United allows no carry-on bags, except for Premier members or select routes.

United Economy Plus offers extra legroom seats at the front of the economy cabin.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$105	Average$168	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$157	Average$264	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$166	Average$248	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$189	Average$307	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$192	Average$307	FlexibilityNo cancel fee	On-time69%

$82+ Cheap flights from Chicago (CHI) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Chicago to Washington, D.C. Reagan-National are usually found in August or January, booked 82 days in advance, depart on a Thursday or Friday and return on a Friday

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Cheapest flights from Chicago to Reagan-NationalExplore the most affordable flight options available from Chicago to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from Chicago to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

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The best insider tips for Chicago to Washington, D.C. Reagan-National Airport flights

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Best time to book a flight from Chicago to Reagan-National

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Reagan-National. Price data was last updated on September 12, 2025.

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

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

Find hourly flight availability from Chicago 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 September 15, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to Reagan-National. Price data was last updated on September 14, 2025.

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

How much does it cost to fly round-trip from Chicago to Washington, D.C. Reagan-National Airport?

Reviews of airlines servicing Reagan-National

Related info for your journey

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

How long is the flight from Chicago to Washington, D.C. Reagan-National Airport?

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

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

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

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

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

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

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

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

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Cheapest flights from Chicago to Reagan-National
Explore the most affordable flight options available from Chicago to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.