$149 Find Cheap Flights from Chicago Midway Airport to Seattle - Compare and Save

Among airlines operating Chicago Midway Airport to Seattle flights:

• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Southwest operates flights between Chicago Midway Airport and Seattle.

Flights from Chicago Midway Airport to Seattle usually depart from Chicago Midway (MDW) and arrive at Seattle/Tacoma Intl (SEA).

Here are some options for this route, based on selected ticket types and cabin classes:

• Southwest: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Only Economy Class is available on flights from Chicago Midway Airport to Seattle.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $245 round-trip via Denver Intl (DEN), compared to $302 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 family is used most often on this route, operated mainly by Delta and American Airlines. Other aircraft seen on the route include Boeing 737-900 variants.

One-stop flights from Chicago Midway Airport to Seattle most commonly connect through:

• Denver Intl (DEN) - 71% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 14% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 14% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 17% on the Chicago Midway Airport to Seattle route. Friday is the cheapest departure day at $295 round-trip on average, while Tuesday is the most expensive at $355, a difference of $60. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Chicago Midway Airport to Seattle flights, with 50% of flights leaving in that window. Night departures account for 50%, afternoon flights for 0%, and evening flights for 0%.

Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

These are the earliest and latest flight times available from Chicago Midway Airport to Seattle:

• Earliest: departs at 9:55 am and lands at 2:32 pm
• Latest: departs at 10:55 pm and lands at 3:32 am.

The flight takes about 4h 37m.

Last-minute fares on this route - booked within 2 weeks of departure - run 75% above the route average of $306. Book 5 weeks before departure for the lowest fares.

A nonstop flight from Chicago Midway Airport to Seattle takes 4h 37m, covering 1,728 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $277 to $1,176. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Chicago Midway Airport to Seattle are currently lower than usual. Average one-way flight prices are about $149, which is 42% below the typical average for this route.

Flying via Las Vegas Harry Reid Intl (LAS) gives the shortest average 1-stop total travel time at 7h 14m, compared with 8h 28m via Detroit Metropolitan Wayne County (DTW) and 12h 02m via Denver Intl (DEN).

Seattle is 2 hours behind Chicago Midway Airport (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
• Fox
• Europcar
• Thrifty
• Budget
• Dollar

Round-trip flights from Chicago Midway Airport to Seattle range from $224 to $403, with an average of $306 over the past 12 months. Anything below $224 counts as a good deal.