Cheap flights from Chicago Midway to Seattle

Compare Chicago Midway to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

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Flight deals from Chicago Midway to Seattle

Looking for a cheap last-minute deal or the best return flight from Chicago Midway to Seattle? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago Midway to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago Midway to Seattle flights are currently cheapest in January.

Direct flights from Chicago Midway to Seattle

Alternative Chicago Midway to Seattle routes

Looking for the cheapest, fastest or easiest route from Chicago Midway to Seattle? You could fly into the following airports instead.

Chicago to Seattle: Flight information

The things to know before you go.
Cheapest flight found$113
Cheapest month to flyJanuary
Average flight time4 hrs, 33 mins
Most popular airlineSouthwest Airlines
Average flights per week14

Finding cheap flights from Chicago Midway to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Chicago Midway to Seattle is $227. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 33 minutes is the average flight time from Chicago Midway to Seattle.
Southwest Airlines flies direct from Chicago Midway to Seattle.
As of December 2025, there are 14 flights per week flying from Chicago Midway to Seattle.
The cheapest month to fly from Chicago Midway to Seattle is usually January.
If you're flying from Chicago Midway Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $227.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago Midway Airport to Seattle on Wednesday, 7 January 2026.
Yes – the average flight time is 4 hours and 33 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In December, the average temperature is usually around 3°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Southwest Airlines offers the cheapest flight tickets to Seattle.

Flying from Chicago Midway International Airport (MDW) to Seattle: what you need to know

  • Jump on a direct flight from Chicago Midway International Airport to Seattle and you'll be in the air for around 4 hours.

  • Seattle is two hours behind Chicago, where Chicago Midway International Airport is located. Seattle runs on the UTC-7 timezone.

  • With eight flights a week between the two airports, Chicago Midway International Airport (MDW) to Seattle-Tacoma International Airport (SEA) is the most popular route. Catch Southwest Airlines's 07:45 flight to get your trip from MDW to SEA underway.

  • To avoid rushing for your MDW to Seattle flight, leave plenty of time to check in and find your gate. Turning up two hours before international departures and one hour before domestic flights is the standard rule.

  • Delays at security and check-in are more likely if you're heading away during high season, so give yourself a little extra breathing room. A good general rule for peak times? Arrive up to four hours ahead for international flights and two hours for domestic departures.

  • You can book a direct Chicago Midway International Airport to Seattle ticket. Start your journey at MDW and land at Seattle-Tacoma International Airport (SEA).

  • Book your favourite seat with Southwest Airlines. This popular airline operates direct flights from Chicago Midway International Airport to Seattle.

  • Located around 14 kilometres from the centre of Chicago, MDW can be reached in about 20 minutes by car, depending on traffic. Travelling on public transport will take roughly 45 minutes.

  • Want a relaxed start to your journey? Stay near MDW. Whether you've booked an early flight from Chicago Midway International Airport to Seattle or want to avoid feeling rushed, these hotels are worth a look:

  • When it comes to Chicago Midway International Airport's on-time performance, 77.88% of flights stick to their scheduled arrival time.

  • MDW is located at 5700 South Cicero.

How to find the cheapest flights from Chicago Midway International Airport (MDW) to Seattle

  • $113 is the lowest price we've found for a one-way Chicago Midway International Airport to Seattle flight. A round-trip ticket right now is $227. Depending on when and how early you book, these fares can change.

  • Book four months before you want to travel. Pricing trends show that this is the ideal window for finding cheap flights from MDW to Seattle.

  • August is the best month for nabbing an incredible deal on Chicago Midway International Airport to Seattle tickets. If you need to travel during a different time of year, the 'Whole month' tool will show you the lowest prices across every month.

  • Picking up a cheap flight from MDW to Seattle is easy with Price Alerts. All you need to do is create one of these automatic notifications and we'll get in touch as soon as a deal gets even better.

  • Tailor your trip with filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from Chicago Midway International Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from the centre of Seattle. If you're grabbing a cab or a ride-share, the drive will take roughly 20 minutes.

  • Getting there on public transport typically takes 55 minutes.

  • If you're arriving on a late flight from Chicago Midway International Airport to Seattle, nothing beats the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and sleeping soon after at one of these hotels near SEA:

  • Go wherever you want, whenever you want with a Seattle-Tacoma International Airport rental car. Pick up your wheels from Thrifty, Europcar or Budget and experience more of Seattle and beyond.

  • Lock in the lowest price by booking your ride from Seattle-Tacoma International Airport about one week before your flight from MDW to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • The centre of Seattle is about 3 kilometres from Lake Union Sea Plane Base Airport (LKE). After your flight from Chicago Midway International Airport to Seattle has hit the runway and you've navigated your way to arrivals, expect a drive of about 10 minutes.

  • The trip will take about 25 minutes on public transport.

  • You'll find some great places to park your luggage (and yourself) near LKE. Settle in and get cosy after your MDW to Seattle flight at any of these perfectly located options:

Best time to go to Seattle

  • Visit Seattle during peak season if you want a busy atmosphere, but remember that hotel prices are usually higher. Alternatively, book flights from Chicago Midway International Airport to Seattle during the off-season when prices are cheaper and it's less crowded.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC (54ºF) and 28ºC (82ºF). Lock in your Chicago Midway International Airport to Seattle plane ticket then if you enjoy this type of weather.

  • If you want cooler conditions, search for a cheap ticket from MDW to Seattle in February when temperatures average between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

  • Once you've booked your flight from Chicago Midway International Airport to Seattle, find a hotel that offers both comfort and a great location. Make one of these options your base for exploring Seattle:

  • Every great holiday has to include a little sightseeing. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are must-do's during your Seattle adventure.

Explore more of United States

  • Portland is just one of the many cities in United States waiting to be explored once you've seen the sights of Seattle. Around 241 kilometres away to the south, well-known attractions include Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • If you're ready to explore another corner of United States, head for Spokane, roughly 370 kilometres east of Seattle. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.