We've made it easier for you to find a cheap deal, by finding all the flights from Chicago O'hare International Airport to Washington DC Washington Dulles International Airport. We've put them all in one place so you can compare you options. The cheapest airline to fly with is usually Alaska Airlines, but it's best to check them all to make sure you're getting a good deal.
If you’re looking for a bargain, try searching for flights by month to find the lowest prices. Or you could try to get a last-minute deal. Alaska Airlines are the most popular airlines to fly with, but that doesn’t necessarily mean they’re the best choice for your travel dates.
At the other end of the spectrum, flights in high season are very expensive. But you might be able to get a good last-minute deal. Whenever you fly, you'll have plenty of choice. There are five flights every week from Chicago O'hare International Airport to or via Washington DC Washington Dulles International Airport.
Did you know you can compare accommodation prices too? If you need somewhere to stay in Washington DC, take a look at our hotel options to get an idea of prices.
