Seattle to Chicago (SEA–MDW) — Airlines, Schedules & Connections

SEA Airport Page →
1,729 mi airlines 28/wk
On-time Some delays Frequent delays
Flight Schedule 10 flights Verified 27m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
WN4419
WN Southwest
73H
1:21 AM
MDT
7:00 AM
CDT
4h 39m
M T W T F S S
Prices
WN2123
WN Southwest
B38M
5:15 AM
MDT
11:10 AM
CDT
4h 55m
M T W T F S S
Prices
WN1807
WN Southwest
7M8
6:00 AM
MDT
12:00 PM
CDT
4h
M T W T F S S
Prices
WN3951
WN Southwest
73H
11:45 PM
MDT
5:45 AM+1
CDT
4h
M T W T F S S
Prices
WN4198
WN Southwest
73H
11:55 PM
MDT
5:55 AM+1
CDT
4h
M T W T F S S
Prices
WN454
WN Southwest
B38M
10:05 AM
CDT
12:40 PM
MDT
4h 35m
M T W T F S S
Prices
WN3521
WN Southwest
7M8
10:15 AM
CDT
12:45 PM
MDT
4h 30m
M T W T F S S
Prices
WN2192
WN Southwest
7S7
10:45 AM
CDT
1:15 PM
MDT
4h 30m
M T W T F S S
Prices
WN3378
WN Southwest
7M8
9:40 PM
CDT
12:10 AM+1
MDT
4h 30m
M T W T F S S
Prices
WN3640
WN Southwest
7M8
11:45 PM
CDT
2:08 AM+1
MDT
3h 23m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Seattle to Chicago
1 carrier, 28 flights/week nonstop.
1 Airlines 28 Flights/wk 1,729 mi 4h nonstop +1h ahead 71 1-stop hubs

SEA–MDW is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 1,729 miles in approximately 4h. Beyond nonstop, 71 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop SEA–MDW service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 28 73H, 7M8, B38M 4h-4h55 86%
Aircraft on this route
73H Boeing 737-800 – WN
7M8 Boeing 737 MAX 8 – WN
B38MWN
Alliance coverage
Unaffiliated: WN (28 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SEA to MDW direction.
Mon
4
flights
Tue
4
flights
Wed
4
flights
Thu
4
flights
Fri
4
flights
Sat
4
flights
Sun
4
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
5
Nonstop flights
28
Outbound / wk
28
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SEA to MDW.
1-STOP
One-Stop Connections
71
Hubs
~5h
Fastest
~31h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
3,353
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
SEA → MDW
86%
Generally reliable. Most flights run on time.
Departing
86%
Arriving
54%
Return
MDW → SEA
70%
Moderate delays possible. Allow buffer time.
Departing
70%
Arriving
94%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays → MDW delays →

Other ways to reach Chicago from Seattle

Nearby airports with service to Chicago Midway International Airport.
Metric SEA→MDW YYJ→MDW
Distance from SEA 98 mi
Nonstop airlines 1 1
Weekly flights 28
Flight time 4h
Departure OTP 86%
Airports within 200 miles of SEA with service to Chicago Midway International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Chicago is 1 hour ahead of Seattle.
SEA: MDT · MDW: CDT

When it's 6:00 PM in Seattle, it's 7:00 PM in Chicago.
Distance & Flight Time
1,729 mi / 2,782 km
Nonstop flight time is approximately 4h 0m to 4h 55m.
Getting to SEA

Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).

Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.

SEA–MDW Quick Facts

Key statistics for the Seattle to Chicago route.
Route details
Distance1,729 mi / 2,782 km
Flight time4h to 4h 55m
Time difference+1 hour
Airlines (nonstop)1
Weekly flights28 out / 28 return
1-stop connections71 hubs
Origin: SEA
IATA / ICAOSEA / KSEA
TimezoneAmerica/Boise
Passengers/yr52.6M
Elevation433 ft / 132 m
Destination: MDW
IATA / ICAOMDW / KMDW
TimezoneAmerica/Chicago
Passengers/yr20.7M
Elevation620 ft / 189 m

Frequently Asked Questions

Common questions about SEA to MDW flights.
Nonstop flights from Seattle–Tacoma International Airport to Chicago Midway International Airport take approximately 4h to 4h 55m. The route covers 1,729 miles.
1 airline operates nonstop service: Southwest Airlines.
There are approximately 28 nonstop flights per week from SEA to MDW. The return direction has about 28 weekly flights.
Yes, 1-stop connections are available through FTW, BZN, YVR, HDN, APA, EGE, JAC, BIL, EUG, STS, MEM, YYZ, OKC, TUL, RNO, SNA, ICT, SGR, IAD, MKE, PDX, ONT, SMF, SFO, MSP, PHL, EWR, CLT, CVG, DEN, STL, ATL, BUR, RDU, DTW, MCI, LAX, BNA, SJC, DFW, PHX, SLC, CMH, BOS, PIT, MSY, LAS, MCO, SAN, TPA, AUS, CHS, OAK, TUS, DAL, ORD, IND, MIA, IAH, OMA, GDL, BWI, RSW, FLL, DCA, PSP, ABQ, CLE, SAT, SJD and CUN. These options provide additional schedule flexibility.
Chicago is 1 hour ahead of Seattle.
Yes, return flights from MDW to SEA are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include YYJ. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from SEA to MDW

Seattle–Tacoma International Airport (SEA) and Chicago Midway International Airport (MDW) are connected by nonstop service from Southwest Airlines. With 28 weekly departures, this is a heavily served route.

SEA to MDW Flight Duration and Schedule

Nonstop flight time from SEA to MDW ranges from 4 hours 0 minutes to 4 hours 55 minutes. The route covers a distance of 1,729 miles (2,782 km). There are approximately 28 weekly flights outbound and 28 return, totaling 56 flights per week in both directions.

Connecting Options and Alternatives

71 one-stop connections are available, with the fastest taking approximately 5 hours via FTW. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Victoria (YYJ).