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

MDW Airport Page →
1,728 mi airlines 2/wk
On-time Some delays Frequent delays
Flight Schedule 1 flight Verified 5h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
UA3777
UA United
7M9
5:45 PM
CDT
8:10 PM
PDT
4h 25m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Chicago to Seattle
1 carrier, 2 flights/week nonstop.
1 Airlines 2 Flights/wk 1,728 mi 3h 32m nonstop -2h behind 71 1-stop hubs

MDW–BFI is served by 1 airline with nonstop service. United Airlines leads the route. The flight covers 1,728 miles in approximately 3h 32m. Beyond nonstop, 71 hubs offer 1-stop connections.

Also explore MDW Routes BFI Routes MDW Live Flights BFI Live Flights MDW Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop MDW–BFI service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines 1 7M9 4h25 84% Star Alliance –
Aircraft on this route
7M9 Boeing 737 MAX 9 – UA
Alliance coverage
Star Alliance: UA (1 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, MDW to BFI direction.
Mon
0
flights
Tue
0
flights
Wed
0
flights
Thu
0
flights
Fri
0
flights
Sat
0
flights
Sun
1
flight
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
2
Outbound / wk
0
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for MDW to BFI.
1-STOP
One-Stop Connections
71
Hubs
~3h
Fastest
~31h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
433
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.
Alternatives

Other ways to reach Seattle from Chicago

Nearby airports with service to King County International Airport - Boeing Field.
Metric MDW→BFI ORD→BFI RFD→BFI
Distance from MDW – 15 mi 75 mi
Nonstop airlines 1 1 1
Weekly flights 2 1 –
Flight time 3h 32m 3h 32m 3h 52m
Departure OTP 84% – –
Chicago (ORD) to Seattle flights · Chicago/Rockford (RFD) to Seattle flights
Airports within 200 miles of MDW with service to King County International Airport - Boeing Field.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-2h
Seattle is 2 hours behind Chicago.
MDW: CDT · BFI: PDT

When it's 6:00 PM in Chicago, it's 4:00 PM in Seattle.
Distance & Flight Time
1,728 mi / 2,782 km
Nonstop flight time is approximately 3h 32m to 4h 25m.
Facts

MDW–BFI Quick Facts

Key statistics for the Chicago to Seattle route.
Route details
Distance1,728 mi / 2,782 km
Flight time3h 32m to 4h 25m
Time difference-2 hours
Airlines (nonstop)1
Weekly flights2 out
1-stop connections71 hubs
Origin: MDW
Full nameChicago Midway International Airport
IATA / ICAOMDW / KMDW
TimezoneAmerica/Chicago
Passengers/yr20.7M
Elevation620 ft / 189 m
Destination: BFI
Full nameKing County International Airport - Boeing Field
IATA / ICAOBFI / KBFI
TimezoneAmerica/Los_Angeles
Passengers/yr0.1M
Elevation21 ft / 6 m
FAQ

Frequently Asked Questions

Common questions about MDW to BFI flights.
Nonstop flights from Chicago Midway International Airport to King County International Airport - Boeing Field take approximately 3h 32m to 4h 25m. The route covers 1,728 miles.
1 airline operates nonstop service: United Airlines.
There are approximately 2 nonstop flights per week from MDW to BFI.
Yes, 1-stop connections are available through YVR, BZN, EGE, YEG, YYZ, IND, OMA, MSP, SEA, ORD, SDF, STS, SLC, PDX, APA, BOI, STL, CMH, MCI, RNO, SAN, SCF, OKC, VNY, CLT, EWR, LAS, BWI, PIT, IAH, DCA, ATL, TRM, CHS, OAK, RDU, JAX, SNA, IAD, BUF, BNA, LGB, PHX, BUR, PSP, DAL, AUS, LAX, HOU, LGA, PNS, ELP, DFW, BOS, ABQ, TUS, MCO, TPA, GCM, RSW, PBI, FLL, MIA, SJU, SJC, SMF, DEN, SFO, YYC, YLW and HND. These options provide additional schedule flexibility.
Seattle is 2 hours behind Chicago.
Nearby alternatives include ORD and RFD. 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 MDW to BFI

Chicago Midway International Airport (MDW) and King County International Airport - Boeing Field (BFI) are connected by nonstop service from United Airlines. With 2 weekly departures, this is a regularly served route.

MDW to BFI Flight Duration and Schedule

Nonstop flight time from MDW to BFI ranges from 3 hours 32 minutes to 4 hours 25 minutes. The route covers a distance of 1,728 miles (2,782 km).

Connecting Options and Alternatives

71 one-stop connections are available, with the fastest taking approximately 3 hours via YVR. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Chicago (ORD) and Chicago/Rockford (RFD).