฿4,230 Cheap Flights from Seattle (SEA) to Chicago (ORD)

View ฿4,230 flight on Tue, 28 Apr 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Chicago O'Hare International Airport (ORD)

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Cheap Flights from Seattle (SEA) to Chicago (ORD)

Prices were available within the past 7 days and start at ฿4,230 for one-way flights and ฿8,455 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿8,455 Return, found 3 days ago
฿8,455
Return
found 3 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿8,455 found 3 days ago
Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿9,950 Return, found 3 days ago
฿9,950
Return
found 3 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿9,950 found 3 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿10,110 Return, found 3 days ago
฿10,110
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿10,110 found 3 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿10,290 Return, found 3 days ago
฿10,290
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿10,290 found 3 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿10,440 Return, found 3 days ago
฿10,440
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿10,440 found 3 days ago
Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿10,610 Return, found 3 days ago
฿10,610
Return
found 3 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿10,610 found 3 days ago
Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿10,620 Return, found 3 days ago
฿10,620
Return
found 3 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿10,620 found 3 days ago
Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿10,735 Return, found 3 days ago
฿10,735
Return
found 3 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿10,735 found 3 days ago
Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿11,270 Return, found 3 days ago
฿11,270
Return
found 3 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿11,270 found 3 days ago
American Airlines
Sat, 2 May - Sat, 9 May
SEA
Seattle
ORD
Chicago
฿11,430 Return, found 3 days ago
฿11,430
Return
found 3 days ago
Select American Airlines flight, departing Sat, 2 May from Seattle to Chicago, returning Sat, 9 May, priced at ฿11,430 found 3 days ago

Find the cheapest month to fly from Seattle (SEA) to Chicago (ORD)

April is typically the cheapest month to fly

From ฿5,902 - ฿11,875 per traveller.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to O'Hare Intl. Airport (ORD)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from Seattle - Tacoma Intl. Airport (SEA) to ORD was ฿8,455. Fares this good don't last forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to ORD?
The majority of flights can be cancelled online, but each airline has a different set of terms and conditions. If you do need to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to O'Hare Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to O'Hare Intl. Airport (ORD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to ORD?
The flight distance between Sea-Tac Airport and O'Hare Airport is 2,800 kilometres. Pack yourself a drink, a few snacks and something to read. Keep yourself entertained and the hours will fly by.
Which airlines fly direct from SEA to O'Hare Airport?
You have lots of choice when travelling from Seattle - Tacoma Intl. Airport (SEA) to O'Hare Intl. Airport (ORD). Lock in your ticket with one of these top airlines:

  • Alaska Airlines - (AS) with 134 monthly flights
  • United Airlines - (UA) with 117 monthly flights
  • Delta Air Lines - (DL) with 69 monthly flights
  • American Airlines - (AA) with 60 monthly flights

Are Seattle - Tacoma Intl. Airport (SEA) to O'Hare Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally nab a bargain, with some of the cheapest fares from Sea-Tac Airport to O'Hare Intl. Airport (ORD) showing up a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline advertises prices that far in advance.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
O'Hare Intl.
Return price
฿8,455
Distance
2745 km
Average flight time
6 hours 6 mins
*Available to Expedia members.