C$112 Cheap Flights from Chicago Midway to Seattle

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Flight deals from Chicago Midway to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from Chicago Midway to Seattle? Find the lowest prices on one-way and round-trip 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 March.

Direct flights from Chicago Midway to Seattle

Chicago to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$112
Cheapest month to flyMarch
Average flight time4 hrs, 33 mins
Most popular airlineSouthwest Airlines
Average flights per week15

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 C$223. 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 March 2026, there are 15 flights per week flying from Chicago Midway to Seattle.
The cheapest month to fly from Chicago Midway to Seattle is usually March.
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 C$223.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago Midway Airport to Seattle on Saturday, March 21, 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 March, the average temperature is usually around 6°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

  • Expect to be in the air for 4 hours 1 minute. On average, that's the duration of a direct flight from Chicago Midway International Airport to Seattle.

  • Seattle is 2 hours behind Chicago, where Chicago Midway International Airport is located. Seattle operates on the UTC-7 timezone.

  • Chicago Midway International Airport (MDW) to Seattle-Tacoma International Airport (SEA) is the most traveled route, with 9 weekly departures to choose from. If you have things to finalize before heading off, the last flight from MDW to SEA is with Southwest Airlines at 22:55. Choose the first departure operated by Southwest Airlines at 08:10 if you want to fly out earlier.

  • To ensure you get on your flight from MDW to Seattle, leave enough time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general rule.

  • Peak months like July or high seasons such as Thanksgiving and Christmas will mean longer queues at check-in and security. Play it safe and get to the terminal even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is a wise move.

  • You can book a nonstop flight from Chicago Midway International Airport to Seattle. Start your trip at MDW and arrive at Seattle-Tacoma International Airport (SEA).

  • Keep your eyes peeled for offers from Southwest Airlines. This carrier has direct flights from Chicago Midway International Airport to Seattle.

  • When flying within United States, you don't need a visa or passport. However, you'll have to show another kind of identification, such as an ID card or driver's licence. Once you've booked flight tickets from Chicago Midway International Airport to Seattle, make sure your ID is up to date.

  • Located around 19 kilometres from central Chicago, MDW can be reached in about 21 minutes by car, depending on traffic. The journey on public transport takes roughly 46 minutes.

  • Want an easy start to your travels? Stay near MDW. Whether you're boarding an early flight from Chicago Midway International Airport to Seattle or want to avoid feeling rushed, these hotels are just the thing:

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

  • The lowest price we've found for a one-way ticket from Chicago Midway International Airport to Seattle is C$112. The cheapest price for a return flight is C$223. Bear in mind fares may change due to demand at the time of booking.

  • To get your hands on cheap tickets from MDW to Seattle, book early. Airlines generally offer lower fares when flights are first made available.

  • Getting cheap tickets from Chicago Midway International Airport to Seattle is more likely if you can be flexible with your dates. Check out the 'Whole month' search function to see the best prices throughout the month and snap up a great deal.

  • Log into your online account or use the app to set up a Price Alert. We'll let you know right away if there's a cheaper deal on this route. It's simple to do, and it'll save you time checking for cheap tickets from MDW to Seattle every day.

  • Use the filters to tailor your flights from Chicago Midway International Airport to Seattle. Enter your preferred departure and arrival times, airlines and number of stops. Or sort your results by 'Cheapest' to see the best deals.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from the centre of Seattle. With a cab or in your own car rental, the drive is about 18 minutes.

  • If you're travelling on public transport, expect a journey of about 54 minutes.

  • The last thing you need is a long journey to your hotel if you're getting in late on a flight from Chicago Midway International Airport to Seattle. Stay at one of these accommodation options near SEA instead:

Lake Union Sea Plane Base Airport (LKE)

Best time to go to Seattle

  • July is the busiest month to catch a flight from Chicago Midway International Airport to Seattle while May is the quietest. To work out the ideal time to visit Seattle, consider the pace you prefer to travel at.

  • Book your flight from Chicago Midway International Airport to Seattle for August to visit the city during its warmest month. Expect temperatures to range from 12ºC to 28ºC.

  • Search for cheap flights from MDW to Seattle in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -1ºC and 11ºC on average.

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the perfect place to stay. After booking your flight from Chicago Midway International Airport to Seattle, explore our selection of accommodation options including:

  • There are so many things to explore in this city it can be hard to know where to start. Gas Works - Lake View Point, Queen Anne Bowl Playfield and LMN Architects are highlights which should feature on any good Seattle itinerary.

Complete your Seattle trip with a car rental

  • Finding you a cheap flight from Chicago Midway International Airport to Seattle isn't the only trick up our sleeve. Check out our car rentals in Seattle and explore the city on your own terms. We find deals from trusted car rental companies and put them all in one place. You can instantly compare offers and then book with no fees.

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