MDW - SEA

$55 Find Cheap Flights from Chicago Midway Airport to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Midway to Seattle departing on 8/19. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Seattle, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Midway to Seattle (MDW-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Midway to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Midway to Seattle

Wed, Oct 1 - Tue, Oct 7
Southwest Logo
9:05 pm - 11:35 pmMDW-SEA
4h 30mnonstop
Southwest Logo
6:15 am - 7:20 pmSEA-MDW
11h 05m1 stop
$164Southwest
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Thu, Sep 18 - Tue, Sep 23
Southwest Logo
9:35 pm - 12:05 amMDW-SEA
4h 30mnonstop
Southwest Logo
11:10 pm - 5:15 amSEA-MDW
4h 05mnonstop
$177Southwest
Find Deal
Mon, Aug 4 - Tue, Aug 12
Southwest Logo
10:15 pm - 12:50 amMDW-SEA
4h 35mnonstop
Southwest Logo
11:10 pm - 5:15 amSEA-MDW
4h 05mnonstop
$179Southwest
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Tue, Aug 12 - Fri, Aug 22
Southwest Logo
3:10 pm - 9:15 pmMDW-SEA
8h 05m1 stop
Southwest Logo
11:10 pm - 5:15 amSEA-MDW
4h 05mnonstop
$183Southwest
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Fri, Jul 4 - Thu, Jul 10
Frontier Logo
6:25 am - 2:11 pmMDW-SEA
9h 46m1 stop
Frontier Logo
6:25 am - 8:54 pmSEA-MDW
12h 29m1 stop
$200Frontier
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Thu, Jun 26 - Sun, Jun 29
Frontier Logo
2:44 pm - 12:34 amMDW-SEA
11h 50m1 stop
Frontier Logo
3:11 pm - 2:56 pmSEA-MDW
21h 45m1 stop
$210Frontier
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Thu, Sep 4 - Mon, Sep 8
Frontier Logo
4:29 pm - 7:39 pmMDW-SEA
29h 10m1 stop
Frontier Logo
6:00 am - 10:38 pmSEA-MDW
14h 38m1 stop
$270Frontier
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Wed, Aug 13 - Tue, Aug 19
Delta Logo
9:31 am - 10:07 pmMDW-SEA
14h 36m1 stop
Delta Logo
6:10 am - 5:37 pmSEA-MDW
9h 27m1 stop
$360Delta
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Mon, Aug 11 - Tue, Aug 19
Delta Logo
6:04 am - 10:06 amMDW-SEA
30h 02m1 stop
Delta Logo
6:10 am - 5:37 pmSEA-MDW
9h 27m1 stop
$373Delta
Find Deal
Mon, Aug 18 - Tue, Aug 26
Delta Logo
6:04 am - 10:06 amMDW-SEA
30h 02m1 stop
Delta Logo
6:00 am - 8:35 amSEA-MDW
24h 35m1 stop
$390Delta
Find Deal
Useful Info

KAYAK's insights & trends for Midway to Seattle flights

Get data-powered insights and trends into flights from Midway to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago Midway Airport to Seattle?

The average price of all round-trip flights from Chicago Midway Airport to Seattle clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Seattle on a Wednesday and more expensive on a Thursday. On your return trip to Chicago Midway Airport, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago Midway Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago Midway Airport to Seattle is January, where tickets cost $199 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $518 and $480 respectively.

Can I save money by flying with a layover from Chicago Midway Airport to Seattle?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $300 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago Midway Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago Midway Airport to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonDecember
High seasonAugust
Cheapest flight$55
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly with an average 12% increase in price.
Flight from Chicago Midway Airport to Seattle

When to book flights from Midway to Seattle

Are your dates flexible? Find out the best times to travel from Midway to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago Midway Airport to Seattle flights

  • What is the cheapest flight from Chicago Midway Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Chicago Midway Airport to Seattle was $55 for a one-way ticket and $164 for a round-trip.

  • Do I need a passport to fly between Chicago Midway Airport and Seattle?

    No

  • Which airlines offer Wi-Fi service onboard planes from Chicago Midway Airport to Seattle?

    American Airlines, Alaska Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the Chicago Midway Airport to Seattle flight route.

  • Which aircraft models fly most regularly from Chicago Midway Airport to Seattle?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Chicago Midway Airport to Seattle flight route.

  • On which days can I fly direct from Chicago Midway Airport to Seattle?

    There are nonstop flights from Chicago Midway Airport to Seattle on a daily basis.

  • Which is the best airline for flights from Chicago to Seattle, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Chicago to Seattle are Southwest and Delta. With an average price for the route of $429 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $436 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Chicago Midway Airport to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago Midway Airport to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago Midway Airport to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Chicago Midway Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago Midway Airport to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Chicago Midway Airport with another airline. Booking your flights between Chicago Midway Airport and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago Midway Airport to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Chicago Midway Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago Midway Airport to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $114 or less one-way and $249 or less round-trip.

Prefer to fly direct from Chicago Midway Airport to Seattle?

Find which airlines fly direct from Chicago Midway Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Chicago Midway to Seattle/Tacoma Intl

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Seattle/Tacoma Intl to Chicago Midway

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 3 airlines serving from Midway to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Midway to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4285 reviews
8.2Boarding
8.0Comfort
7.6Entertainment
8.6Crew
7.1Food
Airline reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

6.0 GoodDavid, Jun 2025BWI - COS
Read more Southwest reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Worst airline experience. They were rude and kept changing our seats and/or giving our seats away so our family didn’t get to sit with each other. Almost everyone we dealt with at both airports with this airline was rude. The app kept giving us wrong information making things take longer. Dealing with them before TSA can take close to an hour…longer than I’ve ever had to deal with before. Never using this airline again.

Everything you need to know for your flight from Midway to Seattle

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