Cheap flights from Chicago to Washington, D.C. from $40
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 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Chicago to Washington, D.C.
Our best United Airlines deals on Chicago to Washington, D.C. flight tickets
Frontier flights from Chicago to Washington, D.C.
Our best Frontier deals on Chicago to Washington, D.C. flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Chicago to Washington, D.C.
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
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.?
The month of September is, on average, the cheapest month to fly to Washington, D.C. from Chicago, with most prices found around $199. If you’re not able to fly to Washington, D.C. in September, then August is your next best option. Flight prices from Chicago to Washington, D.C. during August average around $203.
What is the cheapest day to depart on your flight to Washington, D.C.?
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 $299. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Washington, D.C. for around $448.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
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 $301. 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 $640. Of course, these prices can vary depending on the time of year and what airport you fly to.
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.?
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 $310 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 $240 on momondo.
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 July 2025, prices for Chicago to Washington, D.C. flights are approximately 59% 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 United Airlines are the most popular carriers operating from Chicago to Washington, D.C.
What airlines fly to Washington, D.C.?
United Airlines, American Airlines and Southwest 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 48% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 6 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.
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 101 per day as of July 2025. The most frequent departure time is 1:00PM, with 40% of daily flights leaving in the afternoon.
How many flights depart from Chicago to Washington, D.C. on average per week?
As of July 2025, there are 710 flights per week flying from Chicago to Washington, D.C.. The most common day of the week flights depart is Mon, with 18% 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 | $40 |
|---|---|
Fastest flight time | 1h 40m |
Direct flights | Every day |
Airports in Washington, D.C. | 3 airports |
Is flying the fastest way to get from Chicago to Washington, D.C.?
Based on just travel duration our users have found a flight from Chicago to Washington, D.C. to be the fastest option to their destination at just 1h 40m. If travel time is less of a concern you may want to look into booking some alternative forms of transportation like a train from Chicago to Washington, D.C. or a bus from Chicago to Washington, D.C..
Is flying the cheapest way to get from Chicago to Washington, D.C.?
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 $244, or consider a bus from Chicago to Washington, D.C. starting at $134. Both of these alternative options are worth considering when looking to reach your destination.
How far is Chicago to Washington, D.C. by plane?
Chicago and Washington, D.C. are 593.1 mi apart from one another. 1h 40m is a normal flight duration for this route.
When did momondo last update prices for flights from Chicago to Washington, D.C.?
Prices for flights from Chicago to Washington, D.C. were last updated today.
How many operators does momondo search for flights from Chicago to Washington, D.C.?
As of July 2025, there are 6 operators available to choose from for flights from Chicago to Washington, D.C..
How old do you have to be to fly from Chicago to Washington, D.C.?
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..
What documentation or ID do you need to fly to Washington, D.C.?
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.
What is the most popular plane model from Chicago to Washington, D.C.?
Based on momondo bookings for flights between Chicago and Washington, D.C., the leading plane model is Airbus A319, making up 12.18% of the total bookings. Other popular models include Airbus A320-100/200 with 10.66%, Boeing 737-800 with 10.32%, and Boeing 737-900 with 8.25%.
What is the most popular airline from Chicago to Washington, D.C.?
Based on momondo bookings for flights between Chicago and Washington, D.C., the leading airline is United Airlines, making up 29% of the total bookings. Other popular airlines include American Airlines with 24%, Frontier with 23%, and Southwest with 22%.
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
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $46 | Free Cancellation | Rating 6.3 8,059 reviews | |||
| PriceFrom $59 | Free Cancellation | Rating 5.9 3,271 reviews | |||
| PriceFrom $139 | Free Cancellation | Rating 8.0 4,252 reviews | |||
| PriceFrom $148 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $150 | Free Cancellation | Rating 7.4 8,842 reviews | |||
| PriceFrom $166 | Free Cancellation | Rating 8.0 7,954 reviews |
Southwest Flights From Chicago to Washington, D.C.
Southwest is one of the most popular airlines flying from Chicago to Washington, D.C., operating 30 flights/week on average for this route. A good Southwest flight deal for Chicago to Washington, D.C. starts from $139 round-trip, up to an average price of $285. Our users have rated Southwest at 8.0/10.
United Airlines Flights From Chicago to Washington, D.C.
$150 is the best United Airlines flight deal from Chicago to Washington, D.C. found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $298, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,843 user reviews) flies into Washington, D.C. from Chicago 95 times in an average week so prices can vary.
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Chicago to Washington, D.C.?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Washington, D.C.. momondo saves you time and could save you money on your trip.
Can I find flights from Chicago to Washington, D.C. with flexible booking policies on momondo?
momondo does allow users to show only those flights to Washington, D.C. from Chicago which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Chicago to Washington, D.C.?
momondo helps you find the best flight between Chicago and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Chicago to Washington, D.C. right now. Can momondo alert me if prices change?
Price alerts on flights to Washington, D.C. from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.