⚡ Fare recorded April 25, 2026 · Prices change daily

Chicago to Seattle flights

Chicago (MDW) to Seattle (SEA): 1,729 miles (2,782 km) great-circle, about 3h 55m nonstop by our estimate. Cheapest fare observed: $210 round-trip on Southwest, nonstop, departing June 6, 2026.

WNSouthwestWN4061
Depart
MDW
Chicago, USA
16:35
2026-06-06
✈
Arrive
SEA
Seattle, United States
Returns 20:05
2026-06-21
Stops
non-stop
Distance
1,729 mi
Est. nonstop time
3h 55m
Trip type
Round-trip
$210
Round-trip · per person
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About this flight

When did the cheapest Chicago to Seattle fare fly?

$210 round-trip, Southwest WN4061, departing 2026-06-06 at 16:35, returning 2026-06-21. The recorded itinerary left on a Saturday, returning on a Sunday 15 nights later; the fare was observed 42 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Chicago from Seattle?

  • Distance: 1,729 miles (2,782 km) great-circle, heading northwest.
  • Estimated nonstop flight time: about 3h 55m.
  • Departure airport: Chicago Midway International Airport (MDW), Chicago, United States, UTC-5 on June 6, 2026.
  • Arrival: Seattle-Tacoma International Airport (SEA), United States, UTC-7 on June 6, 2026.
  • Time difference: Seattle is 2 hours behind Chicago on the recorded date.
  • Route type: domestic, within United States.
  • Arrival airport elevation: 433 ft.
  • Recorded itinerary: Southwest WN4061, non-stop, round-trip, 15 days between departure and return.
Fare comparison

How does the Chicago to Seattle fare compare with other routes from MDW?

At $210, it ranked 8th of the 30 round-trip fares we recorded from MDW (median $316). That is 12.1 cents per great-circle mile (round-trip price over one-way distance), below the MDW median of 22.1 cents across 30 round-trip routes.

Routes from MDW of similar length: Guadalajara (1,727 mi) at $394 and Portland (1,747 mi) at $372.

Southwest had the cheapest fare on 12 of 30 MDW routes. It is the 16th longest of the 30 routes we track from MDW.

Other ways in

What did other cities pay to fly to Seattle?

Of 18 departure airports with a fare to Seattle, Chicago (MDW) ranked 6th at $210. Lowest: $122 from Houston (IAH); highest: $690 from Punta Cana (PUJ); 5 nonstop. Cheapest-fare airlines (routes): Frontier (13), Alaska Airlines (2), Air Canada (1), Southwest (1) and United Airlines (1).

The reverse, Seattle (SEA) to Chicago (CHI), was $735 round-trip on American Airlines, nonstop, departing April 26, 2026. Seattle to Chicago flights.

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/Los_Angeles; flight time is our estimate.

FAQ

Chicago to Seattle flight questions

How far is Chicago from Seattle by plane?

+
Chicago is about 1,729 miles (2,782 km) from Seattle on a great-circle line from Chicago Midway International Airport (MDW) to Seattle-Tacoma International Airport (SEA), heading northwest. It is the 16th longest of the 30 routes we track from MDW. The recorded itinerary was nonstop.

How long is the flight from Chicago to Seattle?

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About 3h 55m nonstop by our estimate for 1,729 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded Southwest fare was nonstop. 18 airports in our feed had a fare to Seattle; this one ranked 6th, and 5 of the 18 were nonstop.

What is the time difference between Chicago and Seattle?

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On June 6, 2026, Chicago was on UTC-5 (America/Chicago) and Seattle on UTC-7 (America/Los_Angeles), so Seattle was 2 hours behind Chicago: noon in Chicago was 10:00 in Seattle. Both zones shift for daylight saving together, so the gap stays the same in January and July.

How much is a flight from Chicago to Seattle?

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As observed on April 25, 2026: $210 per person round-trip on Southwest flight WN4061, departing June 6, 2026, returning June 21, 2026, nonstop. At $210, it ranked 8th of the 30 round-trip fares we recorded from MDW (median $316). That is 12.1 cents per great-circle mile (round-trip price over one-way distance), below the MDW median of 22.1 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Chicago to Seattle?

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Yes, the cheapest recorded fare was a nonstop Southwest flight, WN4061, on June 6, 2026. Into Seattle, 5 of the 18 recorded fares were nonstop. From MDW, 7 of 30 were. The reverse, Seattle (SEA) to Chicago (CHI), was $735 round-trip on American Airlines, nonstop, departing April 26, 2026.

Which airports serve flights from Chicago to Seattle?

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It departs Chicago Midway International Airport (MDW) in Chicago, United States, and arrives at Seattle-Tacoma International Airport (SEA) in Seattle, United States. A domestic United States flight. Routes from MDW of similar length: Guadalajara (1,727 mi) at $394 and Portland (1,747 mi) at $372.

Where else near Seattle can you fly from Chicago?

Portland (PDX) $372San Francisco (SFO) $424Las Vegas (LAS) $350Los Angeles (LAX) $203Phoenix (PHX) $216Houston (HOU) $253All flights from Chicago →

Other cities with flights to Seattle

From Houston (IAH) $122From San Diego (SAN) $172From Denver (DEN) $178From Las Vegas (LAS) $188From Los Angeles (LAX) $199From Atlanta (ATL) $211

Ready to fly?

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