Cheap flights from District of Columbia to Illinois from $53
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Illinois departing on 7/21. 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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Frontier flights from District of Columbia to Illinois
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American Airlines flights from District of Columbia to Illinois
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How to get the cheapest flight ticket from District of Columbia to Illinois
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 Illinois?
The cheapest month to fly to Illinois from District of Columbia is in September. Flight prices, which tend to average around $209, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $229.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from District of Columbia to Illinois is on a Friday when prices can be found for as low as $398. Flights from District of Columbia to Illinois on a Sunday will generally be more expensive and average around $511. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from District of Columbia to Illinois during this time can be as low as $300. Flights in the afternoon are often more expensive with an average ticket price of $509.
What is the cheapest District of Columbia to Illinois flight route?
Fly from Baltimore/Washington to Chicago O'Hare Intl for the best District of Columbia - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from District of Columbia for as low as $263 on momondo.
What cabin class options are available on District of Columbia to Illinois flights?
There are 4 cabin classes available to choose from on District of Columbia to Illinois 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 District of Columbia to Illinois?
Frontier, United Airlines, and Southwest are the most popular carriers operating from District of Columbia to Illinois
What airlines fly to Illinois?
United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from District of Columbia according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from District of Columbia to Illinois on average per day?
As of June 2025, there are 84 flights per day flying from District of Columbia to Illinois. The most common time of day flights depart is 5:00PM, with 46% of flights taking off in the afternoon.
How many flights depart from District of Columbia to Illinois on average per week?
As of June 2025, 593 flights take off from District of Columbia and land in Illinois each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.
Cheap District of Columbia to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Illinois
Best Price Found | $53 |
|---|---|
Fastest flight time | 1h 55m |
Direct flights | Mon, Tue, Thu, Fri, Sat and Sun |
Airports in Illinois | 3 airports |
When did momondo last update prices for flights from District of Columbia to Illinois?
Prices for flights from District of Columbia to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to Illinois?
As of June 2025, there are 5 operators available to choose from for flights from District of Columbia to Illinois.
How old do you have to be to fly from District of Columbia to Illinois?
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 District of Columbia to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois 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 Illinois. 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 District of Columbia to Illinois?
momondo data reveals that the most frequently booked plane model on the route from District of Columbia to Illinois is Boeing 737-800, representing 13.07% of all bookings. The subsequent popular models are Airbus A319 at 12.84%, Airbus A320-100/200 at 11.77%, and Boeing 737 MAX 8 at 8.83%.
Best airlines flying from District of Columbia to Illinois
Compare and see reviews for airlines that fly from District of Columbia to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $55 | Free Cancellation | Rating 6.3 8,096 reviews | |||
| PriceFrom $58 | Free Cancellation | Rating 5.9 3,293 reviews | |||
| PriceFrom $98 | Free Cancellation | Rating 8.0 7,969 reviews | |||
| PriceFrom $151 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $154 | Free Cancellation | Rating 7.4 8,852 reviews | |||
| PriceFrom $163 | Free Cancellation | Rating 8.0 4,278 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from District of Columbia to Illinois?
Finding the right flight to Illinois from District of Columbia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.
Can I find flights from District of Columbia to Illinois with flexible booking policies on momondo?
All flight searches from District of Columbia to Illinois on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from District of Columbia to Illinois?
Once all potential District of Columbia to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from District of Columbia to Illinois right now. Can momondo alert me if prices change?
Yes. momondo can track prices for District of Columbia to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.