Question 1

Can stopping save me money on Chicago to Washington, D.C. flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Chicago to Washington, D.C..

Question 2

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

Accepted Answer

You are more likely to see cheaper flights to Washington, D.C. from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $318 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Chicago for as low as $254 on momondo.

Question 3

What cabin class options are available on Chicago to Washington, D.C. flights?

Accepted Answer

There are 4 cabin classes available to choose from on Chicago to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 4

How have Chicago to Washington, D.C. flight prices changed over time?

Accepted Answer

As of January 2026, prices for Chicago to Washington, D.C. flights are approximately 47% cheaper when compared to flights at the same time last year.

Question 5

How often are flights from Chicago to Washington, D.C. delayed?

Accepted Answer

Historically, on average around 21% of flights between Chicago and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

Question 6

What is the most punctual flight time for Chicago to Washington, D.C. flights?

Accepted Answer

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Question 7

What is the cheapest time of day to depart on your flight to Washington, D.C.?

Accepted Answer

In the morning is the cheapest time of day to fly from Chicago to Washington, D.C. when you can find flight prices for as low as $329. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $775. Of course, these prices can vary depending on the time of year and what airport you fly to.

Question 8

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

Accepted Answer

The month of August is, on average, the cheapest month to fly to Washington, D.C. from Chicago, with most prices found around $164. If you’re not able to fly to Washington, D.C. in August, then September is your next best option. Flight prices from Chicago to Washington, D.C. during September average around $183.

Question 9

What airlines fly to Washington, D.C.?

Accepted Answer

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Washington, D.C. from Chicago according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 7 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Question 10

What is the cheapest day to depart on your flight to Washington, D.C.?

Accepted Answer

On average, the least expensive day to fly to Washington, D.C. from Chicago is on a Friday. momondo users have found tickets for Friday departures for as low as $335. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Washington, D.C. for around $518.

Question 11

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 12

Which airline has the best punctuality record on Chicago to Washington, D.C. flights?

Accepted Answer

According to our data, Southwest have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

Question 13

What is the typical price of a round-trip flight between Chicago and Washington, D.C.?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $158 to $371.
The lowest price recently found on this route was $90.

Question 14

What is the cheapest airline that flies from Chicago to Washington, D.C.?

Accepted Answer

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Chicago to Washington, D.C.

Question 15

How many flights depart from Chicago to Washington, D.C. on average per day?

Accepted Answer

The number of flights available between Chicago and Washington, D.C. is 69 per day as of January 2026. The most frequent departure time is 6:00PM, with 34% of daily flights leaving at noon.

Question 16

What is the cheapest Chicago to Washington, D.C. flight route?

Accepted Answer

Fly from Chicago O'Hare Intl to Baltimore/Washington for the best Chicago - Washington, D.C. flight prices

Question 17

How many flights depart from Chicago to Washington, D.C. on average per week?

Accepted Answer

As of January 2026, there are 488 flights per week flying from Chicago to Washington, D.C.. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

Question 18

Is flying the cheapest way to get from Chicago to Washington, D.C.?

Accepted Answer

A flight from Chicago to Washington, D.C. is currently going to be the least expensive option currently available. You can also find deals for a train from Chicago to Washington, D.C. starting at $202, or consider a bus from Chicago to Washington, D.C. starting at $142. Both of these alternative options are worth considering when looking to reach your destination.

Question 19

When did momondo last update prices for flights from Chicago to Washington, D.C.?

Accepted Answer

Prices for flights from Chicago to Washington, D.C. were last updated today.

Question 20

How many operators does momondo search for flights from Chicago to Washington, D.C.?

Accepted Answer

As of January 2026, there are 7 operators available to choose from for flights from Chicago to Washington, D.C..

Question 21

How old do you have to be to fly from Chicago to Washington, D.C.?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Washington, D.C..

Question 22

What documentation or ID do you need to fly to Washington, D.C.?

Accepted Answer

The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best Price Found	$74
Fastest flight time	1h 41m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $42	Free Cancellation	Rating 6.3 8,385 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $57	Free Cancellation	Rating 5.7 3,056 reviews	Search Frontier flights
United Airlines	PriceFrom $114	Free Cancellation	Rating 7.4 9,206 reviews	Search United Airlines flights
Delta	PriceFrom $124	Free Cancellation	Rating 7.9 8,120 reviews	Search Delta flights
JetBlue	PriceFrom $141	Free Cancellation	Rating 7.2 2,889 reviews	Search JetBlue flights
American Airlines	PriceFrom $148	Free Cancellation	Rating 7.2 11,198 reviews	Search American Airlines flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,268 reviews	Search Southwest flights

Cheap flights from Chicago to Washington, D.C. from $56

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Washington, D.C. departing on 3/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Chicago to Washington, D.C.

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Chicago to Washington, D.C.

Our best Frontier deals on Chicago to Washington, D.C. flight tickets

United Airlines flights from Chicago to Washington, D.C.

Our best United Airlines deals on Chicago to Washington, D.C. flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago to Washington, D.C. that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Chicago to Washington, D.C.

What is the typical price of a round-trip flight between Chicago and Washington, D.C.?

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

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

What is the cheapest Chicago to Washington, D.C. flight route?

Fly from Chicago O'Hare Intl to Baltimore/Washington for the best Chicago - Washington, D.C. flight prices

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

What cabin class options are available on Chicago to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Chicago to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between Chicago to Washington, D.C..

How have Chicago to Washington, D.C. flight prices changed over time?

As of January 2026, prices for Chicago to Washington, D.C. flights are approximately 47% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Chicago to Washington, D.C.?

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Chicago to Washington, D.C.

What airlines fly to Washington, D.C.?

How often are flights from Chicago to Washington, D.C. delayed?

Historically, on average around 21% of flights between Chicago and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

What is the most punctual flight time for Chicago to Washington, D.C. flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Chicago to Washington, D.C. flights?

According to our data, Southwest have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

How many flights depart from Chicago to Washington, D.C. on average per day?

The number of flights available between Chicago and Washington, D.C. is 69 per day as of January 2026. The most frequent departure time is 6:00PM, with 34% of daily flights leaving at noon.

How many flights depart from Chicago to Washington, D.C. on average per week?

As of January 2026, there are 488 flights per week flying from Chicago to Washington, D.C.. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

When to book flights from Chicago to Washington, D.C.

Cheap Chicago to Washington, D.C. (CHI to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Washington, D.C.

Best Price Found

Fastest flight time

Direct flights

Airports in Washington, D.C.

Is flying the cheapest way to get from Chicago to Washington, D.C.?

How far is Chicago to Washington, D.C. by plane?

When did momondo last update prices for flights from Chicago to Washington, D.C.?

How many operators does momondo search for flights from Chicago to Washington, D.C.?

How old do you have to be to fly from Chicago to Washington, D.C.?

What documentation or ID do you need to fly to Washington, D.C.?

What is the most popular plane model from Chicago to Washington, D.C.?

What is the most popular airline from Chicago to Washington, D.C.?

Best airlines flying from Chicago to Washington, D.C.

Compare and see reviews for airlines that fly from Chicago to Washington, D.C. with momondo

Southwest Flights From Chicago to Washington, D.C.

United Airlines Flights From Chicago to Washington, D.C.

Traveling to a place near Washington, D.C.?

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Washington, D.C.?

Can I find flights from Chicago to Washington, D.C. with flexible booking policies on momondo?

How can momondo help me find flights from Chicago to Washington, D.C.?

I’m not ready to book a flight from Chicago to Washington, D.C. right now. Can momondo alert me if prices change?

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.