Cheap flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport from $78
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport departing on 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Chicago
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Frontier flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport
Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport flight tickets
United Airlines flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport
Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport flight tickets
See travel insights to Chicago from
How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport
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 cheapest month to fly to Chicago O'Hare Intl Airport?
The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $284.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $407. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $504.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
Flying to Chicago O'Hare Intl Airport from Washington, D.C. Dulles Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $336 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $467. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Washington, D.C. Dulles Intl to Chicago O'Hare Intl flight route?
Fly from Washington, D.C. Dulles Intl to Chicago O'Hare Intl for the best Washington, D.C. Dulles Intl - Chicago O'Hare Intl flight prices
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Washington, D.C. Dulles Intl Airport when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $339 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Washington, D.C. Dulles Intl Airport for as low as $259 on momondo.
What cabin class options are available on Washington, D.C. Dulles Intl to Chicago O'Hare Intl flights?
There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Chicago O'Hare Intl?
Frontier, United Airlines, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to Chicago O'Hare Intl
What airlines fly to Chicago O'Hare Intl Airport?
United Airlines, Delta and Frontier are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 94% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 4 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport on average per day?
As of April 2025, 23 flights take off from Washington, D.C. Dulles Intl Airport and land in Chicago O'Hare Intl Airport each day. The most common flight departure time for this route is 12:00PM, with 55% of daily flights taking off in the afternoon.
How many flights depart from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport on average per week?
As of April 2025, 164 flights take off from Washington, D.C. Dulles Intl Airport and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Tue, with 18% of weekly flights taking off on this day.
When to book flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport
Cheap Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport (IAD to ORD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport
How far is Washington, D.C. Dulles Intl to Chicago O'Hare Intl by plane?
The straight-line distance from Washington, D.C. Dulles Intl to Chicago O'Hare Intl is 587.2 mi. By plane, this route typically takes 2h 08m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
As of April 2025, there are 4 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
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 Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents required for your trip to Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport. 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 Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport is Airbus A320-100/200 (12.35% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (11.99%), Boeing 737-800 (11.08%), and Boeing 737-900 (10.97%).
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport is United Airlines (94% of total bookings). The next most popular airlines are Delta (3%), Frontier (2%), and American Airlines (1%).
Best airlines flying from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $63 | Free Cancellation | Rating 5.9 3,276 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 7,897 reviews | |||
| PriceFrom $188 | Free Cancellation | Rating 7.4 8,616 reviews | |||
| PriceFrom $364 | Free Cancellation | Rating 7.2 10,000 reviews |
United Airlines Flights From Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport
Across 30 United Airlines flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport this week, the average price was $339, with the best United Airlines deals starting from $188 round-trip. 8,616 users have rated United Airlines on momondo, with an average score of 7.4/10.
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Chicago?
It is quick and easy to find Washington, D.C. to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.
Can I find flights from Washington, D.C. to Chicago with flexible booking policies on momondo?
Flights from Washington, D.C. to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Washington, D.C. to Chicago?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Washington, D.C..
I’m not ready to book a flight from Washington, D.C. to Chicago right now. Can momondo alert me if prices change?
Price alerts on flights to Chicago from Washington, D.C. 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.