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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 March , April 2026

26 Mar - 16 Apr $ 961.00
BFI
Seattle
Air Excursions
2 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Mar - 16 Apr $ 961.00
BFI
Seattle
Air Excursions
2 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Mar - 16 Apr $ 976.00
BFI
Seattle
Air Excursions
2 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
2 STOPS
BFI
Seattle
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Last minute flights from Seattle to Chicago

26 Mar - 02 Apr $ 1,061.00
BFI
Seattle
Air Excursions
2 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
27 Mar - 02 Apr $ 1,061.00
BFI
Seattle
Air Excursions
2 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
27 Mar - 02 Apr $ 1,077.00
BFI
Seattle
Air Excursions
2 STOPS
CHI
Chicago
CHI
Chicago
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Chicago from Seattle

6:55 AM - 9:19 PM
Frontier Airlines
2 Stops
16h 2m
BFI - CHI
$ 547
Kiwi
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5:25 AM - 5:24 PM
Frontier Airlines
2 Stops
15h 20m
BFI - CHI
$ 547
Kiwi
Pick dates
6:55 AM - 6:22 PM
Frontier Airlines
2 Stops
14h 44m
BFI - CHI
$ 562
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.