O'Hare International Airport
17 miles (27 km) from the city centre. 84.9 million passengers in 2025
| How | Route | Time | Cost |
|---|---|---|---|
| Train | CTA Blue Line to the Loop, runs 24 hours | about 42m | $5 |
Flights from Seattle to Chicago
5 airlines fly nonstop from Seattle to Chicago.
- Distance
- 1,733 mi
- Nonstop flight
- Varies
- Time difference
- +2h
- Nonstop airlines
- 5
Fares from Seattle to Chicago
Checking today’s fares with the airlines.
Nonstop flights
| Airline | From | To |
|---|---|---|
| Alaska Airlines | SEA Seattle-Tacoma International Airport | ORD O'Hare International Airport |
| Delta Air Lines | SEA Seattle-Tacoma International Airport | ORD O'Hare International Airport |
| United Airlines | SEA Seattle-Tacoma International Airport | ORD O'Hare International Airport |
| American Airlines | SEA Seattle-Tacoma International Airport | ORD O'Hare International Airport |
| Southwest Airlines | SEA Seattle-Tacoma International Airport | MDW Midway International Airport |
Nonstop service as of October 2026. Airlines change schedules seasonally.
Getting from the airport into Chicago
Midway International Airport
12 miles (19 km) from the city centre. 19.4 million passengers in 2025
| How | Route | Time | Cost |
|---|---|---|---|
| Train | CTA Orange Line to the Loop (all day, not overnight) | about 22m | $2.50 |
Before you go
Domestic travel within the United States: no passport or visa is needed, but adults must show a REAL ID-compliant license or another accepted ID at airport security.
Chicago is 2 hours ahead of Seattle. Chicago uses the US dollar (USD).
Read the Chicago guide: when to go, weather, airports and tips
Frequently asked questions
How long is the flight from Seattle to Chicago?
Nonstop flight times vary by airline and season; flights with a connection take longer.
Which airlines fly nonstop from Seattle to Chicago?
As of October 2026, Alaska Airlines, Delta Air Lines, United Airlines, American Airlines and Southwest Airlines fly this route nonstop.
Which airports do nonstop flights use?
Nonstop flights leave from Seattle-Tacoma International Airport (SEA) and arrive at O'Hare International Airport (ORD) and Midway International Airport (MDW).
How far is Chicago from Seattle?
About 1,733 miles (2,789 km), measured between the city centres.
What is the time difference?
Chicago is 2 hours ahead of Seattle.
What ID do I need to fly to Chicago?
Domestic travel within the United States: no passport or visa is needed, but adults must show a REAL ID-compliant license or another accepted ID at airport security.
How do I get from O'Hare International Airport into Chicago?
CTA Blue Line to the Loop, runs 24 hours, about 42 minutes, $5.
Related pages
Sources
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.