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Cheap flights from Chicago O'Hare Intl Airport to Seattle from $47

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Seattle departing on 1/14. 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 Chicago O'Hare Intl Airport to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Chicago O'Hare Intl Airport to Seattle 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 Chicago O'Hare Intl Airport to Seattle.

Cheap last minute flights

Planning a quick getaway from Chicago O'Hare Intl Airport to Seattle? 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 Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Chicago O'Hare Intl Airport to Seattle

Find recent round-trip train or bus tickets from Chicago O'Hare Intl Airport to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
7:59 pm - 9:20 amORD-SEA
15h 21m1 stop
3:03 pm - 5:05 amSEA-ORD
12h 02m1 stop
$120Frontier
Find Deal
Sat, Feb 15 - Sat, Feb 22
7:59 pm - 9:20 amORD-SEA
15h 21m1 stop
3:03 pm - 5:05 amSEA-ORD
12h 02m1 stop
$121Frontier
Find Deal
Sat, Feb 15 - Sat, Feb 22
5:56 pm - 8:37 pmORD-SEA
4h 41mnonstop
11:46 am - 6:00 pmSEA-ORD
4h 14mnonstop
$162Alaska Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
2:25 pm - 5:10 pmORD-SEA
4h 45mnonstop
6:10 pm - 12:11 amSEA-ORD
4h 01mnonstop
$169Delta
Find Deal
Wed, Feb 5 - Wed, Feb 12
4:05 pm - 6:45 pmORD-SEA
4h 40mnonstop
4:58 pm - 4:53 amSEA-ORD
9h 55m1 stop
$174United Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
7:45 am - 10:28 amORD-SEA
4h 43mnonstop
11:46 am - 6:00 pmSEA-ORD
4h 14mnonstop
$175Alaska Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
7:15 am - 10:11 amORD-SEA
4h 56mnonstop
7:25 am - 1:30 pmSEA-ORD
4h 05mnonstop
$178Delta
Find Deal
Fri, Jan 31 - Wed, Feb 5
8:25 pm - 11:06 pmORD-SEA
4h 41mnonstop
11:59 pm - 6:05 amSEA-ORD
4h 06mnonstop
$197American Airlines
Find Deal
Fri, Feb 14 - Mon, Feb 17
8:04 pm - 10:53 pmORD-SEA
4h 49mnonstop
6:10 am - 4:31 pmSEA-ORD
8h 21m1 stop
$207United Airlines
Find Deal
Sun, Jan 12 - Thu, Jan 16
7:00 am - 9:28 amORD-SEA
4h 28mnonstop
10:52 pm - 5:07 amSEA-ORD
4h 15mnonstop
$253American Airlines
Find Deal
Sat, May 31 - Sat, Jun 7
1:39 pm - 12:19 amORD-SEA
12h 40m1 stop
$47Spirit Airlines
Find Deal
Tue, Jan 14
1:39 pm - 12:19 amORD-SEA
12h 40m1 stop
$53Spirit Airlines
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Tue, Jan 14
1:30 pm - 4:16 pmORD-SEA
4h 46mnonstop
$85United Airlines
Find Deal
Wed, Jan 22
7:00 am - 1:59 pmORD-SEA
8h 59m1 stop
$90United Airlines
Find Deal
Tue, Apr 1
2:07 pm - 6:17 pmORD-SEA
6h 10m1 stop
$101Alaska Airlines
Find Deal
Tue, May 6
3:35 pm - 10:00 pmORD-SEA
8h 25m1 stop
$103Alaska Airlines
Find Deal
Mon, Jan 13
8:25 pm - 11:08 pmORD-SEA
4h 43mnonstop
$104American Airlines
Find Deal
Sat, Mar 8
7:35 am - 10:17 amORD-SEA
4h 42mnonstop
$105American Airlines
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Sat, Apr 12
7:15 am - 10:11 amORD-SEA
4h 56mnonstop
$115Delta
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Fri, Jan 10
7:00 am - 9:58 amORD-SEA
4h 58mnonstop
$129Delta
Find Deal
Mon, Feb 17
6:00 am - 1:10 pmORD-SEA
9h 10m1 stop
9:36 pm - 11:46 pmSEA-ORD
24h 10m1 stop
$310Frontier
Find Deal
Wed, Dec 25 - Tue, Dec 31
6:00 am - 1:10 pmORD-SEA
9h 10m1 stop
6:00 pm - 11:59 pmSEA-ORD
3h 59mnonstop
Wed, Dec 25 - Wed, Jan 1
1:10 pm - 3:59 pmORD-SEA
4h 49mnonstop
6:00 pm - 11:59 pmSEA-ORD
3h 59mnonstop
$409Alaska Airlines
Find Deal
Wed, Dec 25 - Wed, Jan 1
6:56 pm - 8:18 amORD-SEA
15h 22m1 stop
6:00 pm - 11:59 pmSEA-ORD
3h 59mnonstop
$418Alaska Airlines
Find Deal
Wed, Dec 25 - Tue, Dec 31
1:15 pm - 9:18 pmORD-SEA
10h 03m1 stop
12:31 am - 6:34 amSEA-ORD
4h 03mnonstop
$419American Airlines
Find Deal
Wed, Dec 25 - Tue, Dec 31
6:00 am - 8:55 amORD-SEA
4h 55mnonstop
5:55 pm - 11:59 pmSEA-ORD
4h 04mnonstop
$429Delta
Find Deal
Tue, Dec 24 - Sun, Jan 5
6:00 am - 8:55 amORD-SEA
4h 55mnonstop
7:10 am - 1:15 pmSEA-ORD
4h 05mnonstop
$433Delta
Find Deal
Wed, Dec 25 - Tue, Dec 31
9:55 am - 12:45 pmORD-SEA
4h 50mnonstop
12:31 am - 6:34 amSEA-ORD
4h 03mnonstop
$483American Airlines
Find Deal
Wed, Dec 25 - Sun, Jan 5
6:15 am - 12:41 pmORD-SEA
8h 26m1 stop
11:51 pm - 5:51 amSEA-ORD
4h 00mnonstop
$509United Airlines
Find Deal
Thu, Dec 26 - Wed, Jan 1
2:30 pm - 9:10 pmORD-SEA
8h 40m1 stop
3:22 pm - 11:51 pmSEA-ORD
6h 29m1 stop
$510United Airlines
Find Deal
Tue, Dec 24 - Tue, Dec 31
5:56 pm - 8:37 pmORD-SEA
4h 41mnonstop
11:46 am - 6:00 pmSEA-ORD
4h 14mnonstop
$159Alaska Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
5:56 pm - 8:37 pmORD-SEA
4h 41mnonstop
11:46 am - 6:00 pmSEA-ORD
4h 14mnonstop
$162Alaska Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
2:00 pm - 4:40 pmORD-SEA
4h 40mnonstop
11:46 am - 6:00 pmSEA-ORD
4h 14mnonstop
$168Alaska Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
2:25 pm - 5:10 pmORD-SEA
4h 45mnonstop
6:10 pm - 12:11 amSEA-ORD
4h 01mnonstop
$169Delta
Find Deal
Wed, Feb 5 - Wed, Feb 12
7:45 am - 10:28 amORD-SEA
4h 43mnonstop
11:46 am - 6:00 pmSEA-ORD
4h 14mnonstop
$175Alaska Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
2:25 pm - 5:10 pmORD-SEA
4h 45mnonstop
7:25 am - 1:30 pmSEA-ORD
4h 05mnonstop
$178Delta
Find Deal
Fri, Jan 31 - Tue, Feb 4
8:25 pm - 11:08 pmORD-SEA
4h 43mnonstop
11:59 pm - 5:59 amSEA-ORD
4h 00mnonstop
$188American Airlines
Find Deal
Sat, Mar 8 - Tue, Mar 11
9:55 am - 12:34 pmORD-SEA
4h 39mnonstop
1:33 pm - 7:43 pmSEA-ORD
4h 10mnonstop
$190American Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
8:09 pm - 10:53 pmORD-SEA
4h 44mnonstop
11:59 pm - 5:53 amSEA-ORD
3h 54mnonstop
$192United Airlines
Find Deal
Mon, Mar 17 - Fri, Mar 21
8:04 pm - 10:53 pmORD-SEA
4h 49mnonstop
7:00 am - 1:06 pmSEA-ORD
4h 06mnonstop
$216United Airlines
Find Deal
Wed, Jan 15 - Sat, Jan 18

Frontier flights from Chicago O'Hare Intl Airport to Seattle

Our best Frontier deals on Chicago O'Hare Intl Airport to Seattle flight tickets
Frontier
Feb 15
ORD7:59 pmChicago O'Hare Intl
15h 21m
1 stop
SEA9:20 amSeattle/Tacoma Intl
Feb 22
SEA3:03 pmSeattle/Tacoma Intl
12h 02m
1 stop
ORD5:05 amChicago O'Hare Intl
Frontier
Feb 15
ORD7:59 pmChicago O'Hare Intl
15h 21m
1 stop
SEA9:20 amSeattle/Tacoma Intl
Feb 22
SEA3:03 pmSeattle/Tacoma Intl
12h 02m
1 stop
ORD5:05 amChicago O'Hare Intl
Frontier
Feb 15
ORD7:59 pmChicago O'Hare Intl
15h 21m
1 stop
SEA9:20 amSeattle/Tacoma Intl
Feb 22
SEA3:03 pmSeattle/Tacoma Intl
12h 02m
1 stop
ORD5:05 amChicago O'Hare Intl

Alaska Airlines flights from Chicago O'Hare Intl Airport to Seattle

Our best Alaska Airlines deals on Chicago O'Hare Intl Airport to Seattle flight tickets
Alaska Airlines
Feb 15
ORD5:56 pmChicago O'Hare Intl
4h 41m
SEA8:37 pmSeattle/Tacoma Intl
Feb 22
SEA11:46 amSeattle/Tacoma Intl
4h 14m
ORD6:00 pmChicago O'Hare Intl
Alaska Airlines
Feb 15
ORD7:45 amChicago O'Hare Intl
4h 43m
SEA10:28 amSeattle/Tacoma Intl
Feb 22
SEA11:46 amSeattle/Tacoma Intl
4h 14m
ORD6:00 pmChicago O'Hare Intl
Alaska Airlines
Jan 18
ORD6:55 pmChicago O'Hare Intl
4h 51m
SEA9:46 pmSeattle/Tacoma Intl
Jan 25
SEA8:59 pmSeattle/Tacoma Intl
14h 08m
1 stop
ORD1:07 pmChicago O'Hare Intl

See travel insights to Seattle from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Seattle

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 Seattle?

In general, February is the cheapest month to fly from Chicago O'Hare Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $197. If you don’t want to visit Seattle in February, then you should wait until January to fly from Chicago O'Hare Intl Airport, when ticket prices are also cheap, with an average price of $199.

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

On average, the least expensive day to fly to Seattle from Chicago O'Hare Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $268. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $352.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Chicago O'Hare Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $292 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $309. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Chicago O'Hare Intl to Seattle/Tacoma Intl flight route?

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

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Chicago O'Hare Intl Airport when booking 38 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $277 when searching 38 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $186 in the past 72 hours.

What cabin class options are available on Chicago O'Hare Intl to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to Seattle/Tacoma Intl 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 Chicago O'Hare Intl Airport to Seattle flights?

You could potentially save up to 44% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Seattle flight.

How have Chicago O'Hare Intl Airport to Seattle flight prices changed over time?

As of December 2024, prices for Chicago O'Hare Intl Airport to Seattle flights are approximately 44% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Seattle (ORD to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Seattle

Best Price Found

$47

Fastest flight time

4h 28m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Chicago O'Hare Intl Airport in the past 72 hours is $47. The best round-trip flight deal from Chicago O'Hare Intl Airport to Seattle found on momondo in the last 72 hours is $120.
The fastest flight from Chicago O'Hare Intl Airport to Seattle takes 4h 28m
Direct flights go from Chicago O'Hare Intl Airport to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Chicago O'Hare Intl to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 1716.3 mi away from Chicago O'Hare Intl. A reasonable flight in good conditions will take 4h 28m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Seattle?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Seattle?


Best airlines flying from Chicago O'Hare Intl Airport to Seattle

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $112Free CancellationRating
8.0
8,594 reviews
Search Delta flights
Alaska AirlinesPriceFrom $114Free CancellationRating
8.0
9,537 reviews
Search Alaska Airlines flights
FrontierPriceFrom $118Free CancellationRating
6.1
3,472 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $121Free CancellationRating
6.3
8,111 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $144Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
American AirlinesPriceFrom $154Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Delta Flights From Chicago O'Hare Intl Airport to Seattle

    Delta operates around 12 flights from Chicago O'Hare Intl Airport to Seattle every week. The average price of these flights found in the last 72 hours has been $292, but momondo users have found Delta deals from Chicago O'Hare Intl Airport to Seattle from as low as $112 round-trip. Delta has been scored 8.0/10 in 8,594 reviews.

  • Alaska Airlines Flights From Chicago O'Hare Intl Airport to Seattle

    Across 9,537 Alaska Airlines reviews on momondo, the average score is 8.0/10. Alaska Airlines flies from Chicago O'Hare Intl Airport to Seattle about 13 times each week, with ticket deals ranging from $114 to $302. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Chicago.

Can I find flights from Chicago to Seattle with flexible booking policies on momondo?

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

How can momondo help me find flights from Chicago to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Seattle from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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