Cheap Flights from Chicago to West Boise

View €170 flight on Mon, 7 Jul 2025Opens in a new window

Popular airlines from Chicago to West Boise

  • Aer Lingus

    Aer Lingus

  • Lufthansa

    Lufthansa

  • British Airways

    British Airways

  • Turkish Airlines

    Turkish Airlines

  • American Airlines

    American Airlines

  • Air Serbia

    Air Serbia

  • Swiss International Air Lines

    Swiss International Air Lines

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 15% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Chicago to West Boise (CHI-BOI)

Prices were available within the past 7 days and start at €170 for one-way flights and €329 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 21 Jul - Thu, 24 Jul
ORD
Chicago
BOI
Boise
€329 Return, found 1 day ago
€329
Return
found 1 day ago
Select United flight, departing Mon, 21 Jul from Chicago to Boise, returning Thu, 24 Jul, priced at €329 found 1 day ago
United
Mon, 21 Jul - Thu, 24 Jul
ORD
Chicago
BOI
Boise
€346 Return, found 1 day ago
€346
Return
found 1 day ago
Select United flight, departing Mon, 21 Jul from Chicago to Boise, returning Thu, 24 Jul, priced at €346 found 1 day ago
American Airlines
Mon, 7 Jul - Thu, 17 Jul
ORD
Chicago
BOI
Boise
€356 Return, found 2 days ago
€356
Return
found 2 days ago
Select American Airlines flight, departing Mon, 7 Jul from Chicago to Boise, returning Thu, 17 Jul, priced at €356 found 2 days ago
Delta
Mon, 21 Jul - Thu, 24 Jul
ORD
Chicago
BOI
Boise
€363 Return, found 1 day ago
€363
Return
found 1 day ago
Select Delta flight, departing Mon, 21 Jul from Chicago to Boise, returning Thu, 24 Jul, priced at €363 found 1 day ago
United
Mon, 21 Jul - Thu, 24 Jul
ORD
Chicago
BOI
Boise
€376 Return, found 1 day ago
€376
Return
found 1 day ago
Select United flight, departing Mon, 21 Jul from Chicago to Boise, returning Thu, 24 Jul, priced at €376 found 1 day ago
American Airlines
Mon, 7 Jul - Thu, 17 Jul
ORD
Chicago
BOI
Boise
€378 Return, found 2 days ago
€378
Return
found 2 days ago
Select American Airlines flight, departing Mon, 7 Jul from Chicago to Boise, returning Thu, 17 Jul, priced at €378 found 2 days ago

Find the cheapest month to fly from Chicago (CHI) to Boise (BOI)

October is typically the cheapest month to fly

From €103 - €353 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.