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Cheap Flights from Washington to Illinois
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Average price per month
- Low Season: January
- High Season: June
- Prices for this route are volatile and fluctuate from month to month.
- The cheapest flights are usually bought in January, September and December.
- High season months are April, May and June. However, it's not the rule and you should always search current flight deals.
- For example, the flight from Washington to Illinois is currently 50% cheaper than average.
Price increase as travel date approaches
- Flight prices for this route increase by 49% if you book last minute. Hover on the graph above to see for yourself!.
- To grab the lowest price possible, you should buy your flight around 35 days before departure!
- Consider booking at least 17 days before departure to increase your chances of getting a low price.
- Generally, it's safe to book between 90 and 60 days in advance.
Washington to Illinois Flight Information
| Flights Depart From | Washington (SEA) |
| Flights Arriving To | Illinois (ORD) |
| Distance | 2762.06 km |
| Current Discount | 50 % |
| Average Price | $305.07 |
| Good Deal | $158.97 |
| Cheapest Airlines | Frontier Airlines, Alaska Airlines, Delta Air Lines, United Airlines |
| Popular Airlines | Alaska Airlines, Delta Air Lines, American Airlines, United Airlines, Frontier Airlines |
| Flight Duration | 03 hours 50 minutes |
| Flights Depart From |
| Washington (SEA) |
| Flights Arrive In |
| Illinois (ORD) |
| Distance |
| 2762.06 km |
| Flight Duration |
| 03 hours 50 minutes |
| Current Discount |
| 50 % |
| Average Price |
| $305.07 |
| Good Deal |
| $158.97 |
| Cheapest Airlines |
| Frontier Airlines, Alaska Airlines, Delta Air Lines, United Airlines |
| Popular Airlines |
| Alaska Airlines, Delta Air Lines, American Airlines, United Airlines, Frontier Airlines |
Most Reliable Airlines flying to Illinois
- According to our data, Alaska Airlines, Delta Air Lines and American Airlines have the highest overall rating.
- The following airlines have the highest chance of on time arrivals: Alaska Airlines, Delta Air Lines and American Airlines.
- If customer service is important for you then you should consider flying with Alaska Airlines, Delta Air Lines and American Airlines.
| Airline | Overall Rating | On time arrival | Check-in & Boarding | Cleanliness | Customer Service | Food & Beverage | Entertainment | Legroom | Seat Comfort |
|---|---|---|---|---|---|---|---|---|---|
Alaska Airlines |
4.1 | 4.5 | 4.5 | 4.5 | 4.5 | 3.5 | 3.5 | 4.0 | 4.0 |
Delta Air Lines |
3.8 | 4.5 | 4.0 | 4.0 | 4.0 | 3.5 | 4.0 | 3.5 | 3.5 |
American Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.5 | 3.0 |
United Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.0 | 3.0 |
Frontier Airlines |
2.8 | 3.5 | 3.5 | 3.5 | 3.0 | 2.0 | 1.5 | 2.5 | 2.5 |
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.5
Food & Beverage
3.5
Entertainment
3.5
Legroom
4.0
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.0
Cleanliness
4.0
Customer Service
4.0
Food & Beverage
3.5
Entertainment
4.0
Legroom
3.5
Seat Comfort
3.5
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.5
Seat Comfort
3.0
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.0
Seat Comfort
3.0
Overall Rating
3.0
On time arrival
3.5
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.0
Food & Beverage
2.0
Entertainment
1.5
Legroom
2.5
Seat Comfort
2.5
Good to know:
Enter your preferred departure airport and travel dates into the search form above to unlock the latest Illinois flight deals.
Track the flight prices from Washington to Illinois by subscribing to Fare Alerts to never miss the best deals possible.
Did you know that you could find even better deals when you use our Mobile App?. How to get the cheapest flight to Illinois?
Currently there is a 50% discount on flights to Illinois. This price won't stay too long and you should consider buying now.
Awesome Deals
notifications_active In the past few days the following airlines offered the lowest prices from Washington to Illinois: Frontier Airlines, Alaska Airlines, Delta Air Lines and United Airlines..
Frontier AirlinesThu, 01 May SEA ORD
Sun, 04 May ORD SEA Trip duration: 3 days$136.97
Frontier AirlinesWed, 07 May SEA ORD
Sun, 11 May ORD SEA Trip duration: 4 days$149.97
Frontier AirlinesThu, 10 Apr SEA ORD
Sun, 13 Apr ORD SEA Trip duration: 3 days$171.97
Frontier AirlinesThu, 22 May SEA ORD
Mon, 26 May ORD SEA Trip duration: 4 days$176.97
Alaska AirlinesThu, 17 Apr SEA ORD
Mon, 21 Apr ORD SEA Trip duration: 4 days$188.6
Frontier AirlinesSun, 18 May SEA ORD
Mon, 26 May ORD SEA Trip duration: 8 days$198.98
Delta Air LinesFri, 04 Jul SEA ORD
Mon, 07 Jul ORD SEA Trip duration: 3 days$232.96
Delta Air LinesFri, 14 Mar SEA ORD
Thu, 20 Mar ORD SEA Trip duration: 6 days$242.97
Delta Air LinesTue, 25 Mar SEA ORD
Sat, 07 Jun ORD SEA Trip duration: 74 days$242.97
United AirlinesWed, 16 Jul SEA ORD
Sat, 19 Jul ORD SEA Trip duration: 3 days$268.27
United AirlinesWed, 16 Jul SEA ORD
Sat, 19 Jul ORD SEA Trip duration: 3 days$284.57
Alaska AirlinesSat, 17 May SEA ORD
Wed, 21 May ORD SEA Trip duration: 4 days$287.78
Frontier AirlinesSat, 07 Jun SEA ORD
Sun, 22 Jun ORD SEA Trip duration: 15 days$320.97
United AirlinesThu, 19 Jun SEA ORD
Wed, 25 Jun ORD SEA Trip duration: 6 days$327.01
Delta Air LinesWed, 26 Mar SEA ORD
Sat, 29 Mar ORD SEA Trip duration: 3 days$428.96
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Frequently Asked Questions
- How long is a direct flight from Washington to Illinois?A direct flight from Washington to Illinois takes roughly 03 hours 50 minutes.
- How many direct flights are there between Washington to Illinois daily?On average, there are 105 direct flights from Washington to Illinois each day.
- Which airlines offer cheap airfare from Washington to Illinois?That may change at any time. But in the past 14 days, the cheapest tickets we've found were with Frontier Airlines, Alaska Airlines, Delta Air Lines and United Airlines.
- Do I need my passport to fly from Washington to Illinois?Nope, not this time.
- Which airlines fly from Washington to Illinois most often?Alaska Airlines, Delta Air Lines, American Airlines, United Airlines and Frontier Airlines are the top.
- What's the cheapest day to fly from Washington to Illinois?That depends. Recently, the cheapest day to fly from Washington to Illinois has been Tuesday. And the cheapest return flight from Saturday has been. That said, the cheapest departure days are constantly changing.
- Which airport will I be flying from in Washington?When departing from Washington you'll be flying out of Seattle-Tacoma International.
- Which airport will I be flying from in Illinois?When departing from Illinois you'll be flying out of Chicago O'hare International.
- How is Justfly.com so good at finding cheap flights?We've taken an oath of secrecy and vowed never to say. Just kidding. Our team and technology allows us to browse through hundreds of airlines and hundreds of thousands of flights to find the lowest prices. Then we pass the savings on to you.
- Can Justfly.com help me save money in any other way?We're glad you asked. We help you save money with our Fare Alerts, Price Trend charts and multi-ticket bookings. We also help you save on hotels and car rentals.
- How many airlines does Justfly.com search to find affordable flights?We typically search over 400 airlines.
- Can Justfly.com's Price Trend tool really tell me the best time to buy tickets?Absolutely! That's why we've made it accessible to you.
- Will the price of my flight change?Flight prices and availability change often. To counter this, we update the important data as often as possible every step of the way.
- How will I receive my booking confirmation and travel information?We'll send you an email with the important details!
- Can you cancel or change Justfly.com flights?You sure can. But give us a call first. We'll do our best to find a solution. However, in some cases, if we cancel your booking, we'll have to charge an administrative fee of $75 (domestic), $125 (trans-border between Canada and USA) and $200 (international).
- Are Justfly.com's tickets refundable?All bookings are currently non-refundable.
- How do I contact Justfly.com?To find answers to all of your questions, click here to visit our support page.