Cheap flights from Chicago (CHI) to Seattle (SEA)
The best prices from Chicago to Seattle/Tacoma Intl are usually found in February or January, booked 22 days in advance, depart on a Saturday or Wednesday and return on a Tuesday
How to find the cheapest flight from Chicago (CHI) to Seattle (SEA)
All the information you need to plan the best CHI to SEA flight in 2023: compare Chicago to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
CHI - SEA Price | $186 - $553 |
|---|---|
SEA Temperature | 41 - 66.2 °F |
SEA Rainfall | 0.7 - 6.6 inches |
| Popular in | June | High demand for flights, 39% potential price rise |
|---|---|---|
| Cheapest in | February | Best time to find cheap flights, 45% potential price drop |
| Round-trip from | $186 | From Chicago (CHI) to Seattle/Tacoma Intl |
| One-way from | $88 | One-way flight from Chicago (CHI) to Seattle/Tacoma Intl |
What is the cheapest day to fly round-trip from Chicago to Seattle?
Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 12% on your flight compared to booking on days when demand is much higher.
How far in advance should I book a flight from Chicago to Seattle?
Travelers have found it’s best to book a flight 20 days in advance to save up to 21% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 20 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Chicago to Seattle 1-2 weeks in advance for as low as $394, or $493 for flights within the next 24 hours.
What is the cheapest month to fly from Chicago to Seattle?
Our data shows that February tends to be the cheapest month to fly to Seattle from Chicago. Users have commonly found prices around $340 for the month, but tickets can be as low as $157. Due to multiple factors, prepare for potentially higher prices in June.
When is the cheapest time to fly from Chicago to Seattle (CHI - SEA)?
It’s typically best to fly out from Chicago to Seattle in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.
Cheap flights from Chicago to Seattle in January, February 2023
The best prices found for CHI to SEA flights for January, February
Chicago Midway
Seattle/Tacoma Intl
1 stop
8h 48mSeattle/Tacoma Intl
Chicago Midway
1 stop
25h 09mMultiple Airlines
Chicago Midway
Seattle/Tacoma Intl
1 stop
15h 00mSeattle/Tacoma Intl
Chicago Midway
1 stop
13h 23mFrontier
Chicago Midway
Seattle/Tacoma Intl
1 stop
15h 00mSeattle/Tacoma Intl
Chicago Midway
1 stop
21h 18mFrontier
Chicago to Seattle 2023 flight deals
Cheap flights to Seattle from Chicago found for this year
Chicago Midway
Seattle/Tacoma Intl
1 stop
8h 48mSeattle/Tacoma Intl
Chicago Midway
1 stop
25h 09mMultiple Airlines
Chicago Midway
Seattle/Tacoma Intl
1 stop
15h 00mSeattle/Tacoma Intl
Chicago Midway
1 stop
13h 23mFrontier
Chicago O'Hare Intl
Seattle/Tacoma Intl
1 stop
12h 40mSeattle/Tacoma Intl
Chicago O'Hare Intl
1 stop
7h 21mSpirit Airlines
Cheap Frontier flights from Chicago to Seattle
Chicago Midway
Seattle/Tacoma Intl
1 stop
15h 00mSeattle/Tacoma Intl
Chicago Midway
1 stop
13h 23mFrontier
Chicago Midway
Seattle/Tacoma Intl
1 stop
15h 00mSeattle/Tacoma Intl
Chicago Midway
1 stop
21h 18mFrontier
Chicago Midway
Seattle/Tacoma Intl
1 stop
25h 03mSeattle/Tacoma Intl
Chicago Midway
1 stop
11h 25mFrontier
One of the most popular airlines traveling from Chicago to Seattle is Frontier. Flights from Frontier traveling this route typically cost $435.70 RT. This price is typically 28% cheaper than other airlines that offer Chicago to Seattle flights. When booking this route, the cheapest RT price found was $119. Chicago O'Hare Intl Airport is the most common Chicago airport to take off from when flying to Seattle. Seattle/Tacoma Intl Airport is the most popular arrival airport in Seattle. When flying from Chicago to Seattle, Frontier flights are 29% more popular than any other airline flying that same route.
Cheap Spirit Airlines flights from Chicago to Seattle
Chicago O'Hare Intl
Seattle/Tacoma Intl
1 stop
12h 40mSeattle/Tacoma Intl
Chicago O'Hare Intl
1 stop
7h 21mSpirit Airlines
Chicago O'Hare Intl
Seattle/Tacoma Intl
1 stop
13h 52mSeattle/Tacoma Intl
Chicago O'Hare Intl
1 stop
15h 50mSpirit Airlines
Chicago O'Hare Intl
Seattle/Tacoma Intl
1 stop
8h 43mSeattle/Tacoma Intl
Chicago O'Hare Intl
1 stop
14h 43mSpirit Airlines
If you’re traveling from Chicago to Seattle, one of the more common airlines traveling that route is Spirit Airlines. Chicago to Seattle flights are typically 27% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $460.45 RT. The cheapest Spirit Airlines flight found for this route was $125. When traveling from Chicago to Seattle on Spirit Airlines, the most popular airport to depart from is Chicago O'Hare Intl Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport. When flying from Chicago to Seattle, Spirit Airlines flights are 27% more popular than any other airline flying that same route.
Non-stop flights to Seattle from Chicago
Save time with Chicago to Seattle direct flight deals
Chicago O'Hare Intl
Seattle/Tacoma Intl
Nonstop
4h 39mSeattle/Tacoma Intl
Chicago O'Hare Intl
Nonstop
3h 54mMultiple Airlines
Chicago O'Hare Intl
Seattle/Tacoma Intl
Nonstop
4h 39mSeattle/Tacoma Intl
Chicago O'Hare Intl
Nonstop
4h 02mMultiple Airlines
Chicago O'Hare Intl
Seattle/Tacoma Intl
Nonstop
4h 42mSeattle/Tacoma Intl
Chicago O'Hare Intl
Nonstop
4h 05mMultiple Airlines
Last minute flights from Chicago to Seattle
Late deals on return flights to Seattle from Chicago, departing today and this week
Chicago Midway
Seattle/Tacoma Intl
1 stop
25h 03mSeattle/Tacoma Intl
Chicago Midway
1 stop
11h 25mFrontier
Chicago Midway
Seattle/Tacoma Intl
1 stop
8h 29mSeattle/Tacoma Intl
Chicago Midway
1 stop
11h 25mFrontier
Chicago Midway
Seattle/Tacoma Intl
1 stop
25h 03mSeattle/Tacoma Intl
Chicago Midway
1 stop
23h 02mFrontier
One-way flights to Seattle from Chicago
The cheapest one-way flights from Chicago to Seattle
Chicago O'Hare Intl
Seattle/Tacoma Intl
1 stop
31h 09mFrontier
Chicago O'Hare Intl
Seattle/Tacoma Intl
1 stop
31h 06mFrontier
Chicago O'Hare Intl
Seattle/Tacoma Intl
1 stop
8h 43mSpirit Airlines
Reviews of Airlines Servicing Seattle
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The outlet at my seat did not work so I was not able to enjoy the in flight entertainment because my phone was dying.
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The outlet at my seat did not work so I was not able to enjoy the in flight entertainment because my phone was dying.
Crew
Boarding
Comfort
Overall
Entertainment
Food
Reviews
The outlet at my seat did not work so I was not able to enjoy the in flight entertainment because my phone was dying.
Crew
Boarding
Comfort
Overall
Entertainment
Food
Reviews
The outlet at my seat did not work so I was not able to enjoy the in flight entertainment because my phone was dying.
Crew
Boarding
Comfort
Overall
Entertainment
Food
Reviews
The outlet at my seat did not work so I was not able to enjoy the in flight entertainment because my phone was dying.
Related info for your journey
Useful info, stats and facts about Chicago to Seattle flights.
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. 10 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.
Which airlines flying from Chicago to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?
Some of the carriers operating flights from Chicago to Seattle/Tacoma Intl that may be offering flexible cancellation policies are Alaska Airlines, Delta, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.
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 Multiple Airlines for just $119, but on average you can expect to pay $131.
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 $211.
Are there last-minute flights available from Chicago to Seattle for under $200?
There are currently 20+ open flights from Chicago to Seattle within the next 7 days for less than $200.
What days are nonstop flights available from Chicago to Seattle?
Nonstop flights are available for this route on the following days: Monday, Tuesday, Wednesday, Friday, Saturday.
How many flights depart from Chicago to Seattle on average per day?
On average, you can expect to see 8 flights from Chicago to Seattle a day.
Morning (6am - Noon) - 38% of flight departures
Afternoon (Noon - 6pm) - 13% of flight departures
Evening (6pm - Midnight) - 50% of flight departures
How long is the flight from Chicago to Seattle?
For as low as $122, Frontier can have you in Seattle from Chicago in 12h 40m. The distance from Chicago to Seattle is about 1725 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Chicago to Seattle round-trip?
Our cheapest airline available from Chicago to Seattle is Frontier. Our recent data shows that you can find tickets from as low as $122 on this airline. An additional option worth looking into is Spirit Airlines, starting at $122. Frontier is priced at 64% lower than the current average price of a flight leaving 3 months from now.
What are the most popular airlines that fly from Chicago to Seattle?
Before booking your flight from Chicago to Seattle check out the most popular airlines for this route: Undisclosed Carrier, American Airlines or Alaska Airlines.
What are the most reliable airlines from Chicago to Seattle?
No one likes to see their flight delayed. When booking a flight from Chicago to Seattle consider choosing LOT (100%), United Airlines (80%) or American Airlines (78%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Chicago to Seattle?
Looking at all options, your cheapest flight can be booked for $100. While the most popular route (Chicago O'Hare Intl - Seattle/Tacoma Intl) can be booked for $125 on average our data indicates $746 when flying from Chicago to Seattle.
Other flights from Chicago
Flights to Seattle from Chicago
Alternative routes for Chicago to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Chicago to Seattle
The chart below displays the airlines Cheapflights users traveling from Chicago to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from Chicago to Seattle
See what time of day planes typically take off from Chicago to Seattle
| 14%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 23%of flight departures | Morning6 am to noon |
| 44%of flight departures | AfternoonNoon to 6 pm |
| 19%of flight departures | Evening6 pm to midnight |
Weekly flight availability from Chicago to Seattle
See how many times per day planes take to the skies headed from Chicago to Seattle
| Sunday | 24daily flights |
|---|---|
| Monday | 20daily flights |
| Tuesday | 22daily flights |
| Wednesday | 24daily flights |
| Thursday | 23daily flights |
| Friday | 23daily flights |
| Saturday | 19daily flights |