Cheap flights from Chicago (CHI) to Dulles Intl (IAD) from $79
This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
How to find the cheapest flight from Chicago (CHI) to Dulles Intl (IAD)
All the information you need to plan the best CHI to IAD flight in 2023: compare Chicago to Dulles Intl flight prices with the expected peak season, weather and rainfall in Dulles Intl.
Popular in | June |
|---|---|
Cheapest in | February |
Round-trip from | $237 |
One-way from | $117 |
CHI - WAS Price | $237 - $374 |
|---|---|
WAS Temperature | 35.6 - 80.6 °F |
WAS Rainfall | 2.6 - 4 inches |
How far in advance should I book a flight from Chicago to Washington, D.C. Dulles Intl Airport?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 56 days in advance, which can save you up to 44% on flights from Chicago to Washington, D.C. Dulles Intl Airport compared to booking the week you need them. Waiting 56 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 $330. For sooner than that we have options available in the next 3 days from $402.
What is the cheapest month to fly from Chicago to Washington, D.C. Dulles Intl Airport?
Flights from Chicago to Washington, D.C. Dulles Intl Airport lean towards being more expensive in June. Prices are generally better when you fly from Chicago to Washington, D.C. Dulles Intl Airport in April, with the cheapest ticket starting at $147.
When is the cheapest time to fly from Chicago to Washington, D.C. Dulles Intl Airport (CHI - IAD)?
When flying from Chicago to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap Delta flights from Chicago to Dulles Intl
Check out some of the cheapest Delta flights we've come across from Chicago to Washington, D.C.. Deals update often to give you more flight options matching your criteria
Cheap United Airlines flights from Chicago to Dulles Intl
Some of the lowest-priced United Airlines flights we've found at this time heading from Chicago to Washington, D.C.. Deals are refreshing constantly so come back soon for more options.
Cheap Chicago to Dulles Intl flights in September & October 2023
The best prices found for CHI to IAD flights for September, October
The lowest fares we've come across on flights traveling from Chicago to Washington, D.C. in September and October 2023. Check back soon for alternative fares.
Chicago to Dulles Intl 2023 flight deals
Cheap flights to Dulles Intl from Chicago found for this year
The lowest fares we've come across on flights traveling from Chicago to Washington, D.C. in September and October 2023. Check back soon for alternative fares.
Non-stop flights to Dulles Intl from Chicago
Save time with Chicago to Dulles Intl direct flight deals
For a quicker trip, book one of these direct flights from Chicago to Washington, D.C.. Select from other flights from Chicago to Washington, D.C. by using the search form above.
Chicago to Dulles Intl flights leaving soon
Late deals on return flights to Dulles Intl from Chicago, departing today and this week
Have a look at some of the last-minute flights available departing from Chicago to Washington, D.C.. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
One-way flights to Dulles Intl from Chicago
The cheapest one-way flights from Chicago to Dulles Intl
Users in need of a one-way flight from Chicago to Washington, D.C. can choose from these deals. Users can also find round-trip Chicago to Washington, D.C. flights by using the search form above.
Find flights from Chicago to Dulles Intl within your budget
Use the slider to find flights from Chicago to Dulles Intl that fit your budget.
Fly from
Fly to
Budget
$158 - $286
Route
Depart
Return
Price
Chicago O'Hare IntlWashington, D.C. Dulles Intl
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Wed 11/15
Nonstop1h 55m
Washington, D.C. Dulles Intl
Sat 11/18
Nonstop2h 10m
Chicago O'Hare IntlWashington, D.C. Dulles Intl
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Fri 10/27
Nonstop1h 54m
Washington, D.C. Dulles Intl
Tue 10/31
Nonstop2h 10m
Chicago O'Hare IntlWashington, D.C. Dulles Intl
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Fri 11/3
Nonstop1h 55m
Washington, D.C. Dulles Intl
Mon 11/6
Nonstop2h 10m
Chicago O'Hare IntlWashington, D.C. Dulles Intl
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Sat 10/28
1 stop5h 22m
Washington, D.C. Dulles Intl
Sun 10/29
Nonstop2h 10m
Chicago MidwayWashington, D.C. Dulles Intl
MDW - IAD
MDWIAD
Chicago Midway
Fri 11/17
1 stop5h 45m
Washington, D.C. Dulles Intl
Sun 11/19
1 stop6h 05m
Chicago O'Hare IntlWashington, D.C. Dulles Intl
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Mon 11/6
1 stop4h 18m
Washington, D.C. Dulles Intl
Thu 11/9
1 stop4h 53m
Chicago O'Hare IntlWashington, D.C. Dulles Intl
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Tue 10/17
1 stop6h 12m
Washington, D.C. Dulles Intl
Sat 10/21
1 stop4h 53m
Chicago O'Hare IntlWashington, D.C. Dulles Intl
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Tue 10/17
3 stops23h 56m
Washington, D.C. Dulles Intl
Thu 10/19
2 stops14h 34m
Chicago MidwayWashington, D.C. Dulles Intl
MDW - IAD
MDWIAD
Chicago Midway
Tue 10/24
Nonstop1h 50m
Washington, D.C. Dulles Intl
Fri 10/27
Nonstop1h 50m
Reviews of airlines servicing Dulles Intl
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Chicago to Washington, D.C.. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Related info for your journey
Useful info, stats and facts about Chicago to Dulles Intl flights.
Can I find flights from Chicago to Washington, D.C. Dulles Intl Airport for under $200 on Cheapflights?
Yes, there are multiple flights from Chicago to Washington, D.C. Dulles Intl Airport for under $200. The cheapest flight booked recently is on United Airlines for just $158, but on average you can expect to pay $182.
Are there nonstop flights from Chicago to Washington, D.C. Dulles Intl Airport for under $200 on Cheapflights?
Cheapflights has at least 20 direct flights from Chicago to Washington, D.C. Dulles Intl Airport under $200. A good price for a nonstop flight from Chicago to Washington, D.C. Dulles Intl Airport is less than $200.
Are there last-minute flights available from Chicago to Washington, D.C. Dulles Intl Airport for under $400?
There are currently 20+ open flights from Chicago to Washington, D.C. Dulles Intl Airport within the next 7 days for less than $400.
What days are nonstop flights available from Chicago to Washington, D.C. Dulles Intl Airport?
You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.
How many flights depart from Chicago to Washington, D.C. Dulles Intl Airport on average per day?
Per day, 40 flights depart from Chicago to Washington, D.C. Dulles Intl Airport on average.
Morning (6am - Noon) - 38% of flight departures
Afternoon (Noon - 6pm) - 33% of flight departures
Evening (6pm - Midnight) - 30% of flight departures
How long is the flight from Chicago to Washington, D.C. Dulles Intl Airport?
For as low as $158, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Chicago in 1h 55m. The distance between Chicago and Washington, D.C. Dulles Intl Airport is about 590 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Chicago to Washington, D.C. Dulles Intl Airport round-trip?
Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $158. Another option worth looking into is Delta, starting at $177 round trip. United Airlines is 52% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Chicago to Washington, D.C. Dulles Intl Airport one-way?
$79 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $84 and $117, respectively.
What are the most popular airlines that fly from Chicago to Washington, D.C. Dulles Intl Airport?
American Airlines, Delta and United Airlines are the most popular airlines when flying from Chicago to Washington, D.C. Dulles Intl Airport.
What are the most reliable airlines from Chicago to Washington, D.C. Dulles Intl Airport?
The top 3 most reliable airlines when flying from Chicago to Washington, D.C. Dulles Intl Airport are Sun Country Air (100%), Egypt Air (97%) and Austrian Airlines (82%).
What are the cheapest flights from Chicago to Washington, D.C. Dulles Intl Airport?
Looking at all options, your cheapest flight can be booked for $109. While the most popular route (Chicago O'Hare Intl - Washington, D.C. Dulles Intl) can be booked for $160 on average our data indicates $765 when flying from Chicago to Washington, D.C. Dulles Intl Airport.
What does ORD to IAD mean?
ORD and IAD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ORD to IAD refers to a flight route from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD).
Other flights from Chicago
Flights to Dulles Intl from Chicago
Top 3 airlines flying from Chicago to Dulles Intl
The chart below displays the airlines Cheapflights users traveling from Chicago to Dulles Intl choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from Chicago to Dulles Intl
See what time of day planes typically take off from Chicago to Dulles Intl
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 35%of flight departures | Morning6 am to noon |
| 49%of flight departures | AfternoonNoon to 6 pm |
| 15%of flight departures | Evening6 pm to midnight |
Weekly flight availability from Chicago to Dulles Intl
See how many times per day planes take to the skies headed from Chicago to Dulles Intl
| Sunday | 5daily flights |
|---|---|
| Monday | 24daily flights |
| Tuesday | 14daily flights |
| Wednesday | 16daily flights |
| Thursday | 14daily flights |
| Friday | 22daily flights |
| Saturday | 8daily flights |
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How does Cheapflights help users find flights from Chicago to Dulles Intl?
When you search for this flight from Chicago to Dulles Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Chicago to Dulles Intl?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dulles Intl from Chicago.
Can Cheapflights find flights from Chicago to Dulles Intl with no change fees?
Certainly. Search results for flights to Dulles Intl from Chicago shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Chicago to Dulles Intl become cheaper?
Yes, Cheapflights has a feature called Price Alert, which essentially offers users the ability to be notified when flight prices change. Track prices for your flight to Dulles Intl from Chicago today and book when you’re ready!