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$46+ Cheap flights from Illinois to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
Nov 5 — Nov 121
Tue 11/5
Tue 11/12
1 adult, Economy
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Find flight deals from Illinois to Washington

Cheapest flights from Illinois to Washington
Explore the most affordable flight options available from Illinois to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/138:25 pmORD - SEA
Nonstop4h 50mAmerican Airlines
Thu 12/2612:31 amSEA - ORD
Nonstop4h 03mAmerican Airlines
Deal found 10/31$162
This FlightHub deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/710:57 amORD - SEA
1 stop23h 23mFrontier
Wed 11/138:18 amSEA - ORD
1 stop23h 29mFrontier
Deal found 10/31$163
This FlightHub deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/254:48 pmORD - SEA
1 stop17h 31mMultiple Airlines
Tue 12/35:28 pmSEA - ORD
1 stop9h 07mMultiple Airlines
Deal found 10/29$164
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/286:05 amORD - SEA
Nonstop4h 50mDelta
Tue 12/106:00 amSEA - ORD
1 stop8h 30mDelta
Deal found 10/31$168
This Alaska Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/171:07 pmORD - SEA
Nonstop4h 48mAlaska Airlines
Wed 12/2510:36 pmSEA - ORD
Nonstop4h 04mAlaska Airlines
Deal found 10/31$172
This CheapOair deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/176:00 amMDW - SEA
1 stop11h 51mFrontier
Fri 11/2212:10 pmSEA - MDW
1 stop6h 42mFrontier
Deal found 10/30$174
This FareScan deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/39:10 pmORD - PDX
2 stops23h 11mSpirit Airlines
Tue 12/107:16 pmPDX - ORD
1 stop8h 14mSpirit Airlines
Deal found 10/31$178
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/207:55 pmORD - SEA
Nonstop4h 51mUnited Airlines
Thu 11/212:06 pmSEA - ORD
Nonstop4h 03mUnited Airlines
Deal found 10/30$178
This FlightHub deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/24:19 pmMDW - PDX
1 stop9h 40mFrontier
Sun 11/106:05 amPDX - MDW
1 stop17h 28mFrontier
Deal found 10/30$180
This FlightHub deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/254:48 pmORD - PDX
1 stop9h 41mMultiple Airlines
Mon 12/29:40 pmPDX - ORD
1 stop12h 12mMultiple Airlines
Deal found 10/31$181
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/181:09 pmORD - SEA
1 stop7h 30mSpirit Airlines
Tue 12/35:28 pmSEA - ORD
1 stop9h 07mSpirit Airlines
Deal found 10/30$181
This CheapOair deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:49 pmSTL - PDX
1 stop22h 55mFrontier
Fri 1/1011:15 amPDX - STL
1 stop6h 16mFrontier
Deal found 10/30$192

Find flights from Illinois to Washington within your budget

Customize your flight search to find flights from Illinois to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 11/16

5:25 pm-12:09 am

1 stop8h 44m

$59

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Wed 11/20

9:45 am-12:25 pm

Nonstop4h 40m

$85

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 11/20

6:45 pm-9:48 pm

Nonstop5h 03m

$85

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Wed 11/20

7:00 am-9:32 am

Nonstop4h 32m

$89

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 11/18

1:09 pm-6:39 pm

1 stop7h 30m

$91

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Wed 1/29

4:00 pm-6:43 pm

Nonstop4h 43m

$109

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Fri 12/6

1:36 pm-9:08 pm

1 stop9h 32m

$113

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Tue 12/24

10:00 am-5:30 pm

1 stop9h 30m

$130

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 12/12

2:00 pm-11:48 pm

3 stops35h 48m

$167

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

Thu 11/7

1:17 pm-12:11 am

1 stop12h 54m

$89

Flights are sorted by cheapest first

Deals found on 10/30

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to Washington

Get recent, data-driven insights about flights from Illinois to Washington including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Illinois to State of Washington (average of $238). Flying from Illinois to State of Washington in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to WA?

Find hourly flight availability from Illinois to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to State of Washington as you normally would.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated October 31, 2024.
Peruse reviews from past customers who have flown with Delta, American Airlines and Southwest from Illinois to Washington to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,116 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,420 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,835 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,240 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

WestJet
7.3
Good
2,804 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Illinois to State of Washington for under $200 on Cheapflights?

    Yes, there are multiple flights from Illinois to State of Washington for under $200. The cheapest flight booked recently is on Multiple Airlines for just $106, but on average you can expect to pay $159.

  • Are there nonstop flights from Illinois to State of Washington for under $200 on Cheapflights?

    Cheapflights has at least 11 direct flights from Illinois to State of Washington under $200. A good price for a nonstop flight from Illinois to State of Washington is less than $215.

  • Are there last-minute flights available from Illinois to State of Washington for under $200?

    There are currently 20+ open flights from Illinois to State of Washington within the next 7 days for less than $200.

  • What days are nonstop flights available from Illinois to State of Washington?

    Nonstop flights are available for this route on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

  • How many flights depart from Illinois to State of Washington on average per day?

    Travelers can expect 92 flights from Illinois to State of Washington on average per day.
    Early Morning (Midnight to 6am) - 20% of flight departures
    Morning (6am - Noon) - 17% of flight departures
    Afternoon (Noon - 6pm) - 29% of flight departures
    Evening (6pm - Midnight) - 34% of flight departures

  • How long is the flight from Illinois to State of Washington?

    Airlines like Frontier, Spirit Airlines, and Delta fly from Illinois to State of Washington in about 6h 24m. The time it takes to get you to your destination can typically vary by up to 6h 30m. Illinois and State of Washington are separated by a distance of 1725 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to State of Washington one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $46. Frontier flights start at $53 while deals on Alaska Airlines start at $58 one-way.

  • What does ORD to SEA mean?

    Chicago O'Hare Intl Airport is ORD and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Ready for more IATA code knowledge? These are related airports for your current travel destination: Wenatchee Pangborn Field Airport (EAT), Spokane Airport (GEG), Pasco Tri Cities Airport (PSC), Bellingham Airport (BLI), Everett Paine Field Airport (PAE).

  • Can I find deals for flights from Illinois to Washington that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Washington flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Washington with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Washington flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Illinois to Washington that include hotel bookings?

    Yes. In addition to deals on Illinois to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Washington.

  • Can I find deals for business class flights from Illinois to Washington?

    Yes. Cheapflights offers flight deals from Illinois to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Illinois to Washington that allow pets onboard?

    Many airlines flying from Illinois to Washington offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Washington?

    Yes, you can often find last-minute deals on Illinois to Washington flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to State of Washington flight deals updated?

    The Illinois to State of Washington flight deals you see on this page were last updated on 10/31.

  • What is the cheapest month to book a flight from Illinois to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Illinois to State of Washington (average of $238). Flying from Illinois to State of Washington in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 7 airlines flying from Illinois to Washington

Discover the top 7 airlines that operate flights from Illinois to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$106Average$564FlexibilityNo cancel feeOn-time75%
DeltaCheapest$107Average$408FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$118Average$220FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$125Average$243FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$138Average$528FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$144Average$527FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$333FlexibilityNo cancel feeOn-time63%
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