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Cheap flights from Washington to Illinois from $52

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Illinois departing on 1/27. 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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Find the cheapest flights from Washington to Illinois

Cheap round-trip flights

These are some of the best round-trip flight deals from Washington to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington to Illinois.

Cheap last minute flights

Planning a quick getaway from Washington to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Washington to Illinois

Find recent round-trip train or bus tickets from Washington to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.
3:15 pm - 12:17 amSEA-MDW
7h 02m1 stop
7:15 am - 3:35 pmMDW-SEA
10h 20m1 stop
$101Frontier
Find Deal
Mon, Jan 27 - Thu, Jan 30
12:13 pm - 11:48 amSEA-MDW
21h 35m1 stop
7:15 am - 2:19 pmMDW-SEA
9h 04m1 stop
$107Frontier
Find Deal
Thu, Jan 9 - Mon, Jan 13
5:30 pm - 5:31 amPDX-ORD
10h 01m1 stop
6:50 am - 12:37 amORD-PDX
19h 47m1 stop
Tue, Feb 11 - Wed, Feb 26
6:00 pm - 11:59 pmSEA-ORD
3h 59mnonstop
7:50 am - 2:19 pmORD-SEA
8h 29m1 stop
Thu, Jan 9 - Mon, Jan 13
11:05 am - 5:10 pmSEA-ORD
4h 05mnonstop
8:04 pm - 10:53 pmORD-SEA
4h 49mnonstop
$169United Airlines
Find Deal
Wed, Jan 15 - Wed, Jan 22
10:10 am - 4:15 pmSEA-MDW
4h 05mnonstop
3:00 pm - 5:30 pmMDW-SEA
4h 30mnonstop
$170Southwest
Find Deal
Sat, Jan 18 - Sat, Jan 25
10:16 am - 9:52 pmPDX-ORD
9h 36m1 stop
1:39 pm - 8:46 pmORD-PDX
9h 07m1 stop
$176Spirit Airlines
Find Deal
Fri, Jan 10 - Mon, Jan 13
7:48 pm - 5:30 amPDX-ORD
7h 42m1 stop
9:54 pm - 9:21 amORD-PDX
13h 27m1 stop
$177Spirit Airlines
Find Deal
Tue, Dec 31 - Wed, Jan 8
10:40 am - 4:40 pmSEA-MDW
4h 00mnonstop
5:35 pm - 8:10 pmMDW-SEA
4h 35mnonstop
$179Southwest
Find Deal
Wed, Jan 15 - Mon, Jan 20
11:59 pm - 6:00 amSEA-ORD
4h 01mnonstop
6:30 am - 1:32 pmORD-SEA
9h 02m1 stop
$202United Airlines
Find Deal
Mon, Jan 20 - Wed, Jan 22
3:15 pm - 12:17 amSEA-MDW
7h 02m1 stop
$52Frontier
Find Deal
Mon, Jan 27
3:15 pm - 12:17 amSEA-MDW
7h 02m1 stop
$53Frontier
Find Deal
Mon, Jan 27
1:36 pm - 12:17 amSEA-MDW
8h 41m1 stop
$54Frontier
Find Deal
Wed, Feb 12
7:48 pm - 5:30 amPDX-ORD
7h 42m1 stop
$81Spirit Airlines
Find Deal
Tue, Dec 31
7:48 pm - 5:30 amPDX-ORD
7h 42m1 stop
$83Spirit Airlines
Find Deal
Tue, Jan 7
5:55 pm - 11:59 pmSEA-ORD
4h 04mnonstop
$85Delta
Find Deal
Tue, Dec 31
12:37 pm - 11:31 pmSEA-ORD
8h 54m1 stop
$90United Airlines
Find Deal
Tue, Feb 25
11:59 pm - 6:00 amSEA-ORD
4h 01mnonstop
$94United Airlines
Find Deal
Mon, Jan 27
6:10 am - 2:49 pmSEA-STL
6h 39m1 stop
$98Delta
Find Deal
Wed, Dec 25
11:48 pm - 12:15 pmSEA-ORD
10h 27m1 stop
$216JetBlue
Find Deal
Sun, Mar 16
6:05 am - 11:18 pmPDX-ORD
15h 13m1 stop
7:25 am - 11:03 amORD-PDX
29h 38m1 stop
$289Frontier
Find Deal
Mon, Dec 2 - Sun, Dec 8
6:05 am - 1:40 pmPDX-MDW
5h 35m1 stop
7:15 am - 11:03 amMDW-PDX
29h 48m1 stop
$318Frontier
Find Deal
Mon, Dec 2 - Sun, Dec 8
9:40 pm - 11:52 amPDX-ORD
12h 12m1 stop
6:36 pm - 9:47 amORD-PDX
17h 11m1 stop
Fri, Nov 29 - Thu, Dec 5
9:40 pm - 11:52 amPDX-ORD
12h 12m1 stop
7:25 am - 11:03 amORD-PDX
29h 38m1 stop
Mon, Dec 2 - Sun, Dec 8
2:24 pm - 4:35 amSEA-ORD
12h 11m1 stop
9:10 pm - 11:55 amORD-SEA
16h 45m1 stop
$350Spirit Airlines
Find Deal
Mon, Dec 2 - Sat, Dec 14
9:40 pm - 11:52 amPDX-ORD
12h 12m1 stop
9:10 pm - 11:48 pmORD-PDX
28h 38m1 stop
$361Spirit Airlines
Find Deal
Mon, Dec 2 - Wed, Dec 4
12:25 am - 6:29 amSEA-ORD
4h 04mnonstop
9:55 am - 12:43 pmORD-SEA
4h 48mnonstop
$382American Airlines
Find Deal
Mon, Dec 2 - Tue, Dec 10
12:25 am - 6:29 amSEA-ORD
4h 04mnonstop
6:47 am - 1:04 pmORD-SEA
8h 17m1 stop
$392American Airlines
Find Deal
Mon, Dec 2 - Tue, Dec 10
7:05 am - 5:01 pmSEA-ORD
7h 56m1 stop
8:21 pm - 11:10 pmORD-SEA
4h 49mnonstop
$519United Airlines
Find Deal
Thu, Nov 28 - Sat, Jan 11
8:30 am - 9:18 pmSEA-ORD
10h 48m2 stops
10:35 am - 1:22 pmORD-SEA
4h 47mnonstop
$524United Airlines
Find Deal
Thu, Nov 28 - Sat, Jan 11
11:05 am - 5:10 pmSEA-ORD
4h 05mnonstop
8:04 pm - 10:53 pmORD-SEA
4h 49mnonstop
$169United Airlines
Find Deal
Wed, Jan 15 - Wed, Jan 22
10:10 am - 4:15 pmSEA-MDW
4h 05mnonstop
3:00 pm - 5:30 pmMDW-SEA
4h 30mnonstop
$170Southwest
Find Deal
Sat, Jan 18 - Sat, Jan 25
6:10 pm - 12:11 amSEA-ORD
4h 01mnonstop
2:25 pm - 5:11 pmORD-SEA
4h 46mnonstop
$178Delta
Find Deal
Tue, Jan 7 - Fri, Jan 24
10:40 am - 4:40 pmSEA-MDW
4h 00mnonstop
9:15 am - 11:50 amMDW-SEA
4h 35mnonstop
$179Southwest
Find Deal
Wed, Jan 15 - Sun, Jan 19
7:25 am - 1:30 pmSEA-ORD
4h 05mnonstop
7:15 am - 10:11 amORD-SEA
4h 56mnonstop
$180Delta
Find Deal
Sat, Jan 18 - Sat, Jan 25
1:35 pm - 7:40 pmSEA-ORD
4h 05mnonstop
9:55 am - 12:42 pmORD-SEA
4h 47mnonstop
$185American Airlines
Find Deal
Mon, Jan 27 - Thu, Jan 30
6:10 pm - 12:11 amSEA-ORD
4h 01mnonstop
2:25 pm - 5:11 pmORD-SEA
4h 46mnonstop
$187Delta
Find Deal
Mon, Jan 13 - Thu, Jan 16
1:35 pm - 7:40 pmSEA-ORD
4h 05mnonstop
9:55 am - 12:34 pmORD-SEA
4h 39mnonstop
$189American Airlines
Find Deal
Wed, Feb 12 - Sat, Feb 15
6:00 pm - 11:59 pmSEA-ORD
3h 59mnonstop
5:28 pm - 8:11 pmORD-SEA
4h 43mnonstop
$192Alaska Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
12:11 pm - 6:18 pmSEA-ORD
4h 07mnonstop
5:28 pm - 8:11 pmORD-SEA
4h 43mnonstop
$197Alaska Airlines
Find Deal
Mon, Dec 16 - Wed, Jan 22

Spirit Airlines flights from State of Washington to Illinois

Our best Spirit Airlines deals on State of Washington to Illinois flight tickets
Spirit Airlines
Jan 10
PDX10:16 amPortland
9h 36m
1 stop
ORD9:52 pmChicago O'Hare Intl
Jan 13
ORD1:39 pmChicago O'Hare Intl
9h 07m
1 stop
PDX8:46 pmPortland
Spirit Airlines
Dec 31
PDX7:48 pmPortland
7h 42m
1 stop
ORD5:30 amChicago O'Hare Intl
Jan 8
ORD9:54 pmChicago O'Hare Intl
13h 27m
1 stop
PDX9:21 amPortland
Spirit Airlines
Dec 12
PDX5:00 amPortland
7h 26m
1 stop
ORD2:26 pmChicago O'Hare Intl
Dec 15
ORD3:21 pmChicago O'Hare Intl
10h 27m
1 stop
PDX11:48 pmPortland

Delta flights from State of Washington to Illinois

Our best Delta deals on State of Washington to Illinois flight tickets
Delta
Jan 7
SEA7:25 amSeattle/Tacoma Intl
4h 05m
ORD1:30 pmChicago O'Hare Intl
Jan 20
ORD7:15 amChicago O'Hare Intl
4h 56m
SEA10:11 amSeattle/Tacoma Intl
Delta
Jan 13
SEA6:10 pmSeattle/Tacoma Intl
4h 01m
ORD12:11 amChicago O'Hare Intl
Jan 16
ORD2:25 pmChicago O'Hare Intl
4h 46m
SEA5:11 pmSeattle/Tacoma Intl
Delta
Jan 30
SEA11:05 pmSeattle/Tacoma Intl
8h 31m
1 stop
STL9:36 amLambert-St Louis
Feb 5
STL5:00 pmLambert-St Louis
9h 50m
1 stop
SEA12:50 amSeattle/Tacoma Intl

See travel insights to Illinois from

How to get the cheapest flight ticket from State of Washington 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 State of Washington is in January. Flight prices, which tend to average around $205, 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 January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $208.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from State of Washington to Illinois is on a Wednesday when prices can be found for as low as $283. Flights from State of Washington to Illinois on a Sunday will generally be more expensive and average around $368. 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 afternoon. Flights from State of Washington to Illinois during this time can be as low as $278. Flights at noon are often more expensive with an average ticket price of $332.

What is the cheapest Washington to Illinois flight route?

Fly from Seattle/Tacoma Intl to Chicago O'Hare Intl for the best Washington - Illinois flight prices

What cabin class options are available on Washington to Illinois flights?

There are 4 cabin classes available to choose from on Washington to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Illinois flights?

You could potentially save up to 38% on your flight if you consider stops on a State of Washington to Illinois flight.

Cheap State of Washington to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Illinois

Best Price Found

$52

Fastest flight time

3h 42m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from State of Washington in the past 72 hours is $52. The best round-trip flight deal from State of Washington to Illinois found on momondo in the last 72 hours is $101.
The fastest flight from State of Washington to Illinois takes 3h 42m
Direct flights go from State of Washington to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

  • When did momondo last update prices for flights from Washington to Illinois?

    Prices for flights from Washington to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington to Illinois?

  • How old do you have to be to fly from Washington to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from State of Washington to Illinois?


Best airlines flying from State of Washington to Illinois

Compare and see reviews for airlines that fly from State of Washington to Illinois with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $100Free CancellationRating
8.0
8,730 reviews
Search Delta flights
Spirit AirlinesPriceFrom $116Free CancellationRating
6.3
8,172 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $128Free CancellationRating
8.0
9,481 reviews
Search Alaska Airlines flights
FrontierPriceFrom $128Free CancellationRating
6.1
3,523 reviews
Search Frontier flights
American AirlinesPriceFrom $138Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $153Free CancellationRating
7.4
9,146 reviews
Search United Airlines flights
SouthwestPriceFrom $200Free CancellationRating
8.1
4,979 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Illinois?

It is quick and easy to find Washington to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Washington to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Washington.

I’m not ready to book a flight from Washington to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Washington and alert you when they change.


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