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Our cheapest offers for flights from Chicago to United States

Here you can compare cheap flights from Chicago (CHI) to United States for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to United States. Prices and availability may change at any time.

Flights from Chicago (CHI) to Charlotte (CLT)

	Outbound	Return	Airlines	Price
Best option Chicago Charlotte	Outbound 03/02/25 direct F93142 02h 01min	Return 03/07/25 direct F93141 02h 06min	Frontier Airlines	$170
Chicago Charlotte	Outbound 03/02/25 direct F93142 02h 01min	Return 03/07/25 direct F93141 02h 06min	Frontier Airlines	$183
Chicago Charlotte	Outbound 03/02/25 direct F93142 02h 01min	Return 03/07/25 direct F93141 02h 06min	Frontier Airlines	$187

Flights from Chicago (CHI) to St. Louis (STL)

	Outbound	Return	Airlines	Baggage	Price
Chicago St. Louis	Outbound 03/02/25 1 Stopover (BRL) 9X0445, 9X0446 14h 05min	Return 03/07/25 1 Stopover (BRL) 9X0441, 9X0444 26h 10min	Southern Airways Express		$102
Best option Chicago St. Louis	Outbound 03/02/25 direct UA4394 01h 22min	Return 03/07/25 direct UA5721 01h 32min	United Airlines	?	$320
Chicago St. Louis	Outbound 03/02/25 1 Stopover (BRL) 9X0445, 9X0446 14h 05min	Return 03/07/25 1 Stopover (BRL) 9X0441, 9X0444 26h 10min	Southern Airways Express		$105

Flights from Chicago (CHI) to Portland-Oregon (PDX)

	Outbound	Return	Airlines	Baggage	Price
Chicago Portland-Oregon	Outbound 01/04/25 1 Stopover (DEN) F93173, F92687 25h 23min	Return -	Frontier Airlines		$78
Best option Chicago Portland-Oregon	Outbound 03/02/25 direct AS0413 04h 39min	Return 03/07/25 direct AS0324 04h 04min	Alaska Airlines	?	$291
Chicago Portland-Oregon	Outbound 03/02/25 1 Stopover (DEN) F93173, F92687 17h 40min	Return 03/07/25 1 Stopover (SEA) AS1008, AS0538 08h 26min	Frontier Airlines	?	$266

Flights from Chicago (CHI) to Philadelphia (PHL)

	Outbound	Return	Airlines	Baggage	Price
Best option Chicago Philadelphia	Outbound 03/02/25 direct F92112 02h 03min	Return 03/07/25 direct F92111 02h 24min	Frontier Airlines		$183
Chicago Philadelphia	Outbound 03/02/25 1 Stopover (IAD) UA0545, UA4341 04h 18min	Return 03/07/25 direct UA2394 02h 32min	United Airlines	?	$315
Chicago Philadelphia	Outbound 03/02/25 direct AA2098 01h 56min	Return 03/07/25 direct AA0490 02h 28min	American Airlines	?	$328

Flights from Chicago (CHI) to Louisville (SDF)

	Outbound	Return	Airlines	Baggage	Price
Best option Chicago Louisville	Outbound 03/02/25 direct UA3714 01h 31min	Return 03/07/25 direct UA3653 01h 48min	United Airlines	?	$301
Chicago Louisville	Outbound 03/02/25 direct UA3714 01h 31min	Return 03/07/25 direct UA3653 01h 48min	United Airlines	?	$311
Chicago Louisville	Outbound 03/02/25 direct AA4603 01h 27min	Return 03/07/25 direct AA3741 01h 29min	American Airlines	?	$317

Flights from Chicago (CHI) to Appleton (ATW)

	Outbound	Return	Airlines	Baggage	Price
Best option Chicago Appleton	Outbound 03/02/25 direct UA5526 01h 07min	Return 03/07/25 direct UA4707 01h 19min	United Airlines	?	$259
Chicago Appleton	Outbound 03/02/25 direct AA6113 01h 09min	Return 03/07/25 direct AA3770 01h 18min	American Airlines	?	$268
Chicago Appleton	Outbound 03/02/25 direct AA6113 01h 09min	Return 03/07/25 direct AA3770 01h 18min	American Airlines	?	$274

Flights from Chicago (CHI) to Jacksonville, Florida (JAX)

	Outbound	Return	Airlines	Baggage	Price
Best option Chicago Jacksonville, Florida	Outbound 03/02/25 direct UA1269 02h 28min	Return 03/07/25 direct UA1239 02h 48min	United Airlines	?	$360
Chicago Jacksonville, Florida	Outbound 03/02/25 direct UA2473 02h 29min	Return 03/07/25 direct UA1239 02h 48min	United Airlines	?	$374
Chicago Jacksonville, Florida	Outbound 03/02/25 direct UA1269 02h 28min	Return 03/07/25 direct UA0457 02h 47min	United Airlines	?	$385

Flights from Chicago (CHI) to Kahului (OGG)

	Outbound	Return	Airlines	Baggage	Price
Chicago Kahului	Outbound 03/02/25 1 Stopover (SEA) AS0462, AS0805 16h 56min	Return 03/07/25 1 Stopover (SEA) AS0814, AS0408 12h 39min	Alaska Airlines		$511
Chicago Kahului	Outbound 03/02/25 direct UA0202 09h 30min	Return 03/07/25 direct UA0203 07h 51min	United Airlines	?	$1,896
Chicago Kahului	Outbound 03/02/25 1 Stopover (SEA) AS0333, AS0805 19h 11min	Return 03/07/25 1 Stopover (PDX) AS0898, AS0324 17h 29min	Alaska Airlines	?	$545

Flights from Chicago (CHI) to Owensboro (OWB)

	Outbound	Return	Airlines	Baggage	Price
Best option Chicago Owensboro	Outbound 03/02/25 direct LF3094 01h 30min	Return 03/07/25 direct LF3095 01h 35min	Contour Airlines		$155
Chicago Owensboro	Outbound 03/02/25 direct LF3096 01h 30min	Return 03/07/25 direct LF3095 01h 35min	Contour Airlines		$165
Chicago Owensboro	Outbound 03/02/25 direct LF3096 01h 30min	Return 03/07/25 direct LF3095 01h 35min	Contour Airlines	?	$166

Flights from Chicago (CHI) to San Antonio (SAT)

	Outbound	Return	Airlines	Baggage	Price
Chicago San Antonio	Outbound 03/29/25 2 Stopovers (GDL, MTY) Y41841, VB3202, VB0670 38h 16min	Return 04/02/25 2 Stopovers (MTY, GDL) VB0671, VB3195, Y41840 31h 04min	Volaris, Viva Aerobus	?	$528
Best option Chicago San Antonio	Outbound 03/29/25 1 Stopover (DEN) F92209, F92356 06h 38min	Return 04/02/25 1 Stopover (DEN) F92355, F92210 26h 33min	Frontier Airlines		$660
Chicago San Antonio	Outbound 03/29/25 1 Stopover (DEN) F92209, F92356 06h 38min	Return 04/02/25 1 Stopover (DEN) F92355, F92210 26h 33min	Frontier Airlines		$666