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Cheap flights from Chicago to Seattle from £59

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
CHI — SEA
4 Jun — 11 Jun1
1 adult
Tue 4/6
Tue 11/6

Cheap flight deals from Chicago to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 May 2024.

Popular in

July

Cheapest in

January

Round-trip from

£453

One-way from

£120
High demand for flights, 32% potential price rise
Search Deals
Best time to find cheap flights, 34% potential price drop
Search Deals
From Chicago (CHI) to Seattle/Tacoma Intl
Search Deals
One-way flight from Chicago (CHI) to Seattle/Tacoma Intl
Search Deals

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

Users have found that booking a flight from Chicago to Seattle at least 30 days early can save you up to 105% on average compared to booking a flight this week. If booking 30 days before your flight isn’t an option for you, users have found flights from Chicago to Seattle for as little as £253 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £452 for flights departing within the next 3 days.

What is the cheapest month to fly from Chicago to Seattle?

Flights from Chicago to Seattle lean towards being more expensive in July. Prices are generally better when you fly from Chicago to Seattle in January, with the cheapest ticket starting at £76.

What is the cheapest time of day to fly from CHI to SEA?

When flying from Chicago to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 23% versus a flight in the morning.

Cheap United Airlines flights from Chicago to Seattle

Explore cheap flight options specifically provided by United Airlines for the route between Chicago and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.
Peruse some of the lowest-priced United Airlines flights we've found from Chicago to Seattle. Come back soon if you're not finding the exact deal you're looking for.
Fri 16/818:30ORD - SEA
Nonstop4h 39mUnited Airlines
Tue 27/806:45SEA - ORD
1 stop7h 57mUnited Airlines
Deal found 30/5£215
Wed 19/616:23ORD - SEA
1 stop10h 23mUnited Airlines
Tue 25/617:10SEA - ORD
Nonstop4h 00mUnited Airlines
Deal found 29/5£219
Wed 21/810:35ORD - SEA
2 stops13h 24mUnited Airlines
Wed 28/812:55SEA - ORD
1 stop9h 45mUnited Airlines
Deal found 29/5£227
Sat 10/818:30ORD - SEA
Nonstop4h 39mUnited Airlines
Fri 16/800:30SEA - ORD
Nonstop3h 58mUnited Airlines
Deal found 29/5£235
Wed 19/616:23ORD - SEA
1 stop10h 23mUnited Airlines
Mon 24/617:10SEA - ORD
Nonstop4h 00mUnited Airlines
Deal found 29/5£243
Fri 23/813:05ORD - SEA
2 stops10h 54mUnited Airlines
Tue 27/806:45SEA - ORD
1 stop7h 57mUnited Airlines
Deal found 30/5£262
Mon 17/615:44ORD - SEA
1 stop8h 31mUnited Airlines
Sat 22/617:10SEA - ORD
Nonstop4h 00mUnited Airlines
Deal found 30/5£270
Tue 11/616:00ORD - SEA
Nonstop4h 40mUnited Airlines
Sun 23/617:10SEA - ORD
Nonstop4h 00mUnited Airlines
Deal found 29/5£278
Mon 19/810:35ORD - SEA
2 stops13h 24mUnited Airlines
Sun 25/812:55SEA - ORD
1 stop9h 45mUnited Airlines
Deal found 30/5£285

Cheap Alaska Airlines flights from Chicago to Seattle

Explore cheap flight options specifically provided by Alaska Airlines for the route between Chicago and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.
To aid your search, here are some of the cheapest Alaska Airlines flights we've found from Chicago to Seattle. Deals are refreshing constantly so come back soon for more options.
Tue 30/706:00ORD - SEA
Nonstop4h 31mAlaska Airlines
Tue 6/806:00SEA - ORD
1 stop9h 24mAlaska Airlines
Deal found 29/5£140
Wed 21/806:00ORD - SEA
Nonstop4h 34mAlaska Airlines
Mon 26/821:45SEA - ORD
1 stop5h 45mAlaska Airlines
Deal found 29/5£148
Tue 22/1006:00ORD - SEA
Nonstop4h 40mAlaska Airlines
Tue 29/1018:06SEA - ORD
Nonstop3h 53mAlaska Airlines
Deal found 29/5£160
Tue 22/1007:00ORD - SEA
1 stop6h 17mAlaska Airlines
Wed 30/1019:55SEA - ORD
1 stop7h 33mAlaska Airlines
Deal found 29/5£164
Mon 21/1007:00ORD - SEA
1 stop7h 52mAlaska Airlines
Tue 29/1019:55SEA - ORD
1 stop7h 33mAlaska Airlines
Deal found 29/5£171
Thu 4/714:25ORD - SEA
1 stop7h 23mAlaska Airlines
Tue 9/719:45SEA - ORD
1 stop7h 30mAlaska Airlines
Deal found 29/5£172
Tue 13/821:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Sat 17/807:00SEA - ORD
1 stop20h 15mAlaska Airlines
Deal found 29/5£176
Fri 16/808:00ORD - SEA
1 stop6h 32mAlaska Airlines
Mon 19/806:00SEA - ORD
1 stop9h 24mAlaska Airlines
Deal found 29/5£179
Wed 10/721:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Wed 17/707:00SEA - ORD
1 stop21h 20mAlaska Airlines
Deal found 29/5£182

Cheap Chicago to Seattle flights in May & June 2024

Find cheap flight options from Chicago to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Prices were last updated on 30 May 2024.
The lowest fares we've come across on flights travelling from Chicago to Seattle in May and June 2024. Check back in a little while for more flight options.
Fri 14/621:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Wed 26/622:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 30/5£183
Sat 15/606:00ORD - SEA
Nonstop4h 31mAlaska Airlines
Mon 22/722:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 30/5£188
Fri 14/621:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Sun 16/606:07SEA - ORD
Nonstop4h 06mAlaska Airlines
Deal found 30/5£191
Wed 19/618:50ORD - SEA
Nonstop4h 44mDelta
Tue 2/718:00SEA - ORD
Nonstop3h 55mDelta
Deal found 30/5£194
Sat 22/606:00ORD - SEA
Nonstop4h 31mAlaska Airlines
Mon 24/617:40SEA - ORD
Nonstop3h 59mAlaska Airlines
Deal found 30/5£199
Sat 22/619:22ORD - SEA
Nonstop4h 38mAlaska Airlines
Tue 2/714:20SEA - ORD
Nonstop4h 00mAlaska Airlines
Deal found 30/5£207
Wed 5/614:29ORD - SEA
Nonstop4h 31mDelta
Wed 12/618:00SEA - ORD
Nonstop3h 58mDelta
Deal found 30/5£208
Wed 19/606:00ORD - SEA
Nonstop4h 31mAlaska Airlines
Wed 26/622:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 30/5£210
Sat 22/615:10ORD - SEA
Nonstop4h 38mAlaska Airlines
Thu 4/717:40SEA - ORD
Nonstop3h 59mAlaska Airlines
Deal found 30/5£212

Chicago to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Chicago and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.
The lowest fares we've come across on flights travelling from Chicago to Seattle in May and June 2024. Check back in a little while for more flight options.
Tue 27/807:00ORD - SEA
Nonstop4h 25mDelta
Thu 5/918:00SEA - ORD
Nonstop3h 56mDelta
Deal found 30/5£117
Thu 5/907:00ORD - SEA
Nonstop4h 25mDelta
Tue 10/918:00SEA - ORD
Nonstop3h 58mDelta
Deal found 30/5£125
Tue 10/918:50ORD - SEA
Nonstop4h 47mDelta
Tue 17/907:20SEA - ORD
Nonstop3h 58mDelta
Deal found 30/5£133
Wed 11/914:18ORD - SEA
1 stop6h 38mAlaska Airlines
Wed 18/906:07SEA - ORD
Nonstop4h 10mAlaska Airlines
Deal found 30/5£140
Sat 24/806:00ORD - SEA
Nonstop4h 34mAlaska Airlines
Sun 1/919:45SEA - ORD
1 stop7h 45mAlaska Airlines
Deal found 30/5£141
Wed 4/917:59ORD - SEA
Nonstop4h 33mAlaska Airlines
Wed 4/922:49SEA - ORD
1 stop28h 41mAlaska Airlines
Deal found 30/5£147
Wed 11/921:07ORD - SEA
Nonstop4h 34mAlaska Airlines
Mon 16/907:00SEA - ORD
1 stop7h 15mAlaska Airlines
Deal found 30/5£148
Thu 12/918:50ORD - SEA
Nonstop4h 47mDelta
Tue 17/907:20SEA - ORD
Nonstop3h 58mDelta
Deal found 30/5£156
Tue 22/1006:00ORD - SEA
Nonstop4h 40mAlaska Airlines
Thu 31/1018:06SEA - ORD
Nonstop3h 53mAlaska Airlines
Deal found 29/5£160

Direct flights to Seattle from Chicago

Discover direct flight options from Chicago to Seattle. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.
For a shorter flight, select one of these non-stop flights from Chicago to Seattle. Users can also choose from other Chicago to Seattle flights by using the search form above.
Sat 19/1007:26ORD - SEA
Nonstop4h 39mDelta
Wed 23/1011:45SEA - ORD
Nonstop3h 58mDelta
Deal found 30/5£117
Wed 18/914:13ORD - SEA
Nonstop4h 41mDelta
Tue 24/918:00SEA - ORD
Nonstop3h 58mDelta
Deal found 29/5£141
Tue 22/1006:00ORD - SEA
Nonstop4h 40mAlaska Airlines
Thu 31/1018:06SEA - ORD
Nonstop3h 53mAlaska Airlines
Deal found 29/5£160
Thu 24/1015:24ORD - SEA
Nonstop4h 44mAlaska Airlines
Thu 31/1006:00SEA - ORD
Nonstop4h 09mAlaska Airlines
Deal found 29/5£164
Tue 30/718:45ORD - SEA
Nonstop4h 40mDelta
Tue 6/807:10SEA - ORD
Nonstop3h 55mDelta
Deal found 30/5£168
Tue 18/621:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Tue 25/622:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 29/5£183
Thu 11/721:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Wed 17/722:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 30/5£188
Thu 13/621:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Sun 16/606:07SEA - ORD
Nonstop4h 06mAlaska Airlines
Deal found 29/5£189
Thu 13/621:22ORD - SEA
Nonstop4h 37mAlaska Airlines
Mon 17/622:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 29/5£190

Chicago to Seattle flights leaving soon

Find last-minute flight options from Chicago to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.
Check out these flights departing soon from Chicago to Seattle. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Wed 5/614:29ORD - SEA
Nonstop4h 31mDelta
Wed 12/618:00SEA - ORD
Nonstop3h 58mDelta
Deal found 30/5£208
Fri 7/620:05ORD - SEA
1 stop14h 57mSun Country Air
Sun 18/823:59SEA - ORD
1 stop15h 20mSun Country Air
Deal found 30/5£214
Sun 9/621:20ORD - SEA
Nonstop4h 35mAlaska Airlines
Thu 13/612:20SEA - ORD
Nonstop4h 06mAlaska Airlines
Deal found 30/5£231
Fri 7/620:05ORD - SEA
1 stop14h 57mSun Country Air
Sun 9/623:59SEA - ORD
1 stop17h 07mSun Country Air
Deal found 30/5£232
Wed 5/620:00ORD - SEA
1 stop14h 02mSun Country Air
Sun 18/823:59SEA - ORD
1 stop15h 20mSun Country Air
Deal found 30/5£237
Sun 9/614:54ORD - SEA
1 stop6h 17mAlaska Airlines
Thu 13/612:20SEA - ORD
Nonstop4h 06mAlaska Airlines
Deal found 30/5£238
Sat 8/606:00ORD - SEA
Nonstop4h 27mAlaska Airlines
Sun 18/822:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 30/5£255
Sat 8/606:00ORD - SEA
Nonstop4h 27mAlaska Airlines
Sat 15/622:45SEA - ORD
Nonstop3h 55mAlaska Airlines
Deal found 29/5£256
Thu 6/606:00ORD - SEA
Nonstop4h 27mAlaska Airlines
Thu 13/614:20SEA - ORD
Nonstop4h 00mAlaska Airlines
Deal found 30/5£258

One-way flights to Seattle from Chicago

Search for one-way flight options from Chicago to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.
Take a look at some of the one-way flights we've detected from Chicago to Seattle. Users can also find round-trip Chicago to Seattle flights by using the search form above.
Tue 30/718:45ORD - SEA
Nonstop4h 40mDelta
Deal found 30/5£59
Thu 13/618:50ORD - SEA
Nonstop4h 44mDelta
Deal found 29/5£81
Wed 16/1017:45ORD - SEA
1 stop7h 59mAlaska Airlines
Deal found 29/5£82
Wed 12/618:50ORD - SEA
Nonstop4h 44mDelta
Deal found 29/5£83
Mon 2/907:00ORD - SEA
1 stop6h 37mAlaska Airlines
Deal found 30/5£90
Tue 25/618:50ORD - SEA
Nonstop4h 44mDelta
Deal found 29/5£101
Thu 22/820:45ORD - SEA
1 stop28h 06mSun Country Air
Deal found 29/5£102
Mon 24/606:00ORD - SEA
Nonstop4h 31mAlaska Airlines
Deal found 30/5£106
Wed 12/606:00ORD - SEA
Nonstop4h 27mAlaska Airlines
Deal found 29/5£107

Find flights from Chicago to Seattle within your budget

Customise your flight search to find flights from Chicago to Seattle 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 908,271 searches. Data last updated 30 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£117 - £315

Route

Depart

Return

Price

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 19/10

Nonstop4h 39m

Seattle/Tacoma Intl

Wed 23/10

Nonstop3h 58m

£117

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 30/7

Nonstop4h 31m

Seattle/Tacoma Intl

Tue 6/8

1 stop9h 24m

£140

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 18/9

Nonstop4h 41m

Seattle/Tacoma Intl

Tue 24/9

Nonstop3h 58m

£141

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 21/8

Nonstop4h 34m

Seattle/Tacoma Intl

Mon 26/8

1 stop5h 45m

£148

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 22/10

Nonstop4h 40m

Seattle/Tacoma Intl

Tue 29/10

Nonstop3h 53m

£160

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 24/10

Nonstop4h 39m

Seattle/Tacoma Intl

Sun 27/10

Nonstop3h 58m

£164

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Fri 12/7

1 stop17h 46m

Seattle/Tacoma Intl

Mon 15/7

1 stop9h 30m

£196

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Fri 16/8

Nonstop4h 39m

Seattle/Tacoma Intl

Tue 27/8

1 stop7h 57m

£215

Chicago O'Hare IntlSeattle/Tacoma Intl

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Mon 10/6

1 stop7h 30m

Seattle/Tacoma Intl

Tue 11/6

2 stops15h 30m

£315

Flights are sorted by cheapest first

Deals found on 30/5

How far ahead should I book a flight from Chicago to Seattle?

Use this chart to determine the optimal time to book a return flight from Chicago to Seattle. Price data was last updated on 24 May 2024.
Booking 29 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

Best time to book a flight from Chicago to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Chicago with our price prediction graph.
Estimated return 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.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 30 May 2024.
Peruse reviews from past customers who have flown with United Airlines, Alaska Airlines and Sun Country Air from Chicago to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very Good
5,958 reviews
Check prices

Comfort

8.1

Entertainment

7.8

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very Good
5,958 reviews
Southwest
8.2
Very Good
5,958 reviews
Check prices

Comfort

8.1

Entertainment

7.8

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Alaska Airlines
8.1
Very Good
9,201 reviews
Southwest
8.2
Very Good
5,958 reviews
Check prices

Comfort

8.1

Entertainment

7.8

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Delta
8.0
Very Good
10,430 reviews
Southwest
8.2
Very Good
5,958 reviews
Check prices

Comfort

8.1

Entertainment

7.8

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

United Airlines
7.4
Good
10,777 reviews
Southwest
8.2
Very Good
5,958 reviews
Check prices

Comfort

8.1

Entertainment

7.8

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

American Airlines
7.3
Good
14,284 reviews
Southwest
8.2
Very Good
5,958 reviews
Check prices

Comfort

8.1

Entertainment

7.8

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Chicago?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Chicago to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from Chicago on a regular basis. Booking flights from Chicago to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 22 inbound flights from Chicago per day.

  • Can I find flights from Chicago to Seattle for under £200 on Cheapflights?

    Yes, there are multiple flights from Chicago to Seattle for under £200. The cheapest flight booked recently is on Delta for just £117, but on average you can expect to pay £170.

  • Are there nonstop flights from Chicago to Seattle for under £200 on Cheapflights?

    Cheapflights has at least 20 direct flights from Chicago to Seattle under £200. A good price for a nonstop flight from Chicago to Seattle is less than £190.

  • Are there last-minute flights available from Chicago to Seattle for under £300?

    There are currently 20+ open flights from Chicago to Seattle within the next 7 days for less than £300.

  • What days are direct flights available from Chicago to Seattle?

    Direct flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

  • How many flights depart from Chicago to Seattle on average per day?

    On average 42 flights depart from Chicago to Seattle per day.
    Early Morning (Midnight to 6am) - 2% of flight departures
    Morning (6am - Midday) - 24% of flight departures
    Afternoon (Midday - 6pm) - 26% of flight departures
    Evening (6pm - Midnight) - 48% of flight departures

  • How long is the flight from Chicago to Seattle?

    Departing from Chicago to Seattle will take you 4h 31m. The distance between Chicago and Seattle is about 1725 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago to Seattle round-trip?

    According to our current data, Delta (£117), Alaska Airlines (£140), and Sun Country Air (£196) offers the cheapest pricing from Chicago to Seattle. Delta is currently priced 45% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago to Seattle one-way?

    £59 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and Sun Country Air, with prices starting from £82 and £102, respectively.

  • What are the most reliable airlines from Chicago to Seattle?

    The top 3 most reliable airlines when flying from Chicago to Seattle are WestJet (100%), KLM (94%) and Korean Air (93%).

  • What are the cheapest flights from Chicago to Seattle?

    While on average a flight from Chicago to Seattle is generally £129, our data shows the cheapest flight currently is £117. When looking at the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl), you can expect to pay £274 for that flight.

  • What does ORD to SEA mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to Seattle/Tacoma Intl Airport flight would often be abbreviated as a ORD to SEA flight. Ready for more IATA code knowledge? These are related airports for your current travel destination: Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD).

  • Can I find deals for flights from Chicago to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Chicago to Seattle 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 Chicago to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Chicago to Seattle 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 Chicago to Seattle that include hotel bookings?

    Yes. In addition to deals on Chicago to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Seattle?

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

  • Can I find deals for business class flights from Chicago to Seattle?

    Yes. Cheapflights offers flight deals from Chicago to Seattle 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 Chicago to Seattle that allow pets onboard?

    Many airlines flying from Chicago to Seattle 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 Chicago to Seattle?

    Yes, you can often find last-minute deals on Chicago to Seattle 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 Chicago to Seattle flight deals updated?

    The Chicago to Seattle flight deals you see on this page were last updated on 30/5.

  • What is the cheapest month to book a flight from Chicago to Seattle?

    Currently, December is the cheapest month in which you can book a flight from Chicago to Seattle (average of £576). Flying from Chicago to Seattle in July is currently the most expensive (average of £809). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chicago to Seattle
See prices for flight routes from nearby airports that may be better suited for you.

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Search flights from Chicago to Seattle by cabin class

Find flights from Chicago to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Chicago to Seattle

Find hourly flight availability from Chicago to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 May 2024.
13%of flight departuresEarly morningMidnight to 6 am
20%of flight departuresMorning6 am to noon
32%of flight departuresAfternoonNoon to 6 pm
35%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Weekly flight availability from Chicago to Seattle

Explore weekly flight availability from Chicago to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 30 May 2024.
Monday28daily flights
Tuesday20daily flights
Wednesday21daily flights
Thursday24daily flights
Friday26daily flights
Saturday20daily flights
Sunday21daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chicago to Seattle?

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Why should you use Cheapflights to find cheap flight tickets from Chicago to Seattle?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chicago to Seattle for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Chicago to Seattle with no change fees?

Yes, we can. To see specific flights from Chicago to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Chicago to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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