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Cheap flights from Seattle (BFI) to Chicago (CHI)

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How to find the cheapest flight from Seattle (BFI) to Chicago (CHI)

How to find the cheapest flight from Seattle (BFI) to Chicago (CHI)
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How to find the cheapest flight from Seattle (BFI) to Chicago (CHI)
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How to find the cheapest flight from Seattle (BFI) to Chicago (CHI)
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Cheap flights from Seattle to Chicago in June , July 2026

29 Jun - 29 Jul $ 1,024.00
BFI
Seattle
Air Excursions
3 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
2 STOPS
BFI
Seattle
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28 Jun - 22 Jul $ 1,058.00
BFI
Seattle
Air Excursions
3 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
2 STOPS
BFI
Seattle
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28 Jun - 29 Jul $ 1,058.00
BFI
Seattle
Air Excursions
3 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
2 STOPS
BFI
Seattle
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Last minute flights from Seattle to Chicago

28 Jun - 30 Jun $ 1,407.00
BFI
Seattle
Air Excursions
3 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
28 Jun - 30 Jun $ 1,481.00
BFI
Seattle
Air Excursions
2 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
28 Jun - 30 Jun $ 1,491.00
BFI
Seattle
Air Excursions
3 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Chicago from Seattle

5:25 PM - 9:01 PM
Frontier Airlines
3 Stops
27h 54m
BFI - CHI
$ 670
Kiwi
Pick dates
3:05 PM - 1:02 PM
Frontier Airlines
3 Stops
22h 48m
BFI - CHI
$ 703
Kiwi
Pick dates
5:25 PM - 10:08 AM
Frontier Airlines
3 Stops
15h 47m
BFI - CHI
$ 790
Kiwi
Pick dates

How to find the cheapest flight from Seattle (BFI) to Chicago (CHI)

Related info for your journey
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How to find the cheapest flight from Seattle (BFI) to Chicago (CHI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Seattle (BFI) to Chicago (CHI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.