Route guide · 587 miles
Cheap Flights from Chicago to Washington
ORD → IAD · Nonstop 1h 42m · Live round-trip fares
If Washington is next on your list, here's the honest picture on fares from Chicago. The trip covers about 587 miles and takes roughly 1h 42m in the air. Prices on this route reward planners: booking 2–4 weeks ahead is the sweet spot, and the lowest fares tend to sell out fast.
Live fares for ORD → IAD are updating. Use the search below for real-time prices.
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Updated daily
Flight time
1h 42m
Nonstop, typical
Distance
587 mi
ORD → IAD
Cheapest month
November 2026
Fares from $85
Nonstop airlines
1
United Airlines
Nonstop flights from Chicago to Washington
Want to skip the layover? Nonstops from Chicago to Washington are flown by United Airlines, getting you there in about 1h 42m. For the lowest fares, book around 2–4 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Chicago → Washington
- Distance: 587 miles · nonstop flight time: 1h 42m.
- Cheapest upcoming week in the live data starts around Nov 12, with fares from $85.
- Of the months we're tracking right now, November 2026 has the lowest fares, starting at $85.
- Rule of thumb for this route: the sweet spot is usually 2–4 weeks before departure.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Price trend
Cheapest departure weeks ahead
Departing around Nov 12 is currently the cheapest window — about $88 less than the nearest weeks. Based on recent fares found for this route; prices change quickly.
Cheapest month · Chicago → Washington
November 2026
Every date's recent round-trip fare, at a glance.
Fares from
$85
Cheapest: Tue, Nov 17 — $85 · Priciest: Nov 4 — $129
Get this fare →Recent fares found for specific dates in November 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Chicago to Washington: what you need to know
The flight
Chicago to Washington covers 587 miles, and a nonstop gets it done in about 1h 42m. That's long enough to settle in with a coffee and a downloaded show, short enough that a connection rarely makes sense — a layover usually doubles your travel day to save very little.
Airlines on this route
United Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Chicago (ORD)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Chicago airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Washington (IAD)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Washington airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Washington to Chicago fares — prices on the return direction often move on a different rhythm.
When to book
Of the months we're currently tracking, November 2026 is coming in cheapest for this route, with fares from $85. As a rule, booking 2–4 weeks ahead lands you in the sweet spot — leave it to the final two weeks and prices usually climb. If you see a fare that works, don't wait around: set a fare alert on this page and we'll watch the price for you.
Good to know before you go
- Basic economy fares often exclude checked bags and seat selection. Price the whole trip, not the headline fare.
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 1h 42m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
Chicago to Washington flight FAQs
How long is the flight from ORD to IAD?
Plan on about 1h 42m in the air for a nonstop from Chicago to Washington — the route runs roughly 587 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Chicago to Washington?
Yes — look for United Airlines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Chicago to Washington?
Of the months we're tracking right now, November 2026 has the lowest fares from Chicago to Washington, starting at $85. Fares update as new data comes in, so it's worth setting a free alert for your dates.
How much are last minute flights from ORD to IAD?
Last-minute flights from ORD to IAD (booked within 7 days of departure) typically cost noticeably more than fares booked 2–4 weeks out. Booking early is the smarter move.
What is a good round-trip deal from Chicago to Washington?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Chicago to Washington?
The main carriers on this route are United Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Chicago airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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