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Boise to Colorado Springs Flights — Fares from $229.00 | BOI–COS

Compare the cheapest Boise (BOI) to Colorado Springs (COS) fares found by our live flight search, then book online or over the phone with our travel experts.

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Adults
12+
1
Children
2–11
0
Infants
Under 2
0
Cabin
🏷️
Save up to 40% with unpublished phone fares
Consolidator deals on selected Boise → Colorado Springs flights that do not appear in online search results. The live fares below are bookable right now — or call to check for an unpublished fare on your dates.
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One-way fares Boise → Colorado Springs

showing indicative fares · loading live prices…
Southwest
Southwest CHEAPEST
BOI → COS · Economy
lowest fare seen on this route
$383.00
$229.80
Select
United Airlines
United Airlines
BOI → COS · Economy
lowest fare seen on this route
$478.00
$286.80
Select
Delta Air Lines
Delta Air Lines
BOI → COS · Economy
lowest fare seen on this route
$499.00
$299.40
Select
American Airlines
American Airlines
BOI → COS · Economy
lowest fare seen on this route
$720.39
$432.23
Select
See all flights & times → Prices per adult, one way, incl. taxes & fees. Availability changes constantly.
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Live fares we can book on BOI–COS

Lowest fare found per airline on the BOI → COS route, with our discounted phone-deal price.

AirlineCabin Found fareOur discounted fare Fare found on
Southwest Southwest Economy $383.00 $229.80 Aug 14, 2026 Book
United Airlines United Airlines Economy $478.00 $286.80 Aug 14, 2026 Book
Delta Air Lines Delta Air Lines Economy $499.00 $299.40 Aug 14, 2026 Book
American Airlines American Airlines Economy $720.39 $432.23 Aug 14, 2026 Book

Discounted fares are negotiated phone deals from our vendor network and may not appear in online search results — call 765-995-0868 to lock one in. Fares were found on the dates shown, are per person in USD, and change with availability.

More routes we cover

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FlyLemo is an independent travel agency — call 765-995-0868 or use the search above to compare live fares on this route. See our terms, privacy policy, refund policy and service fees for full details, or contact us any time.

Page updated August 16, 2026 · fare data refreshed automatically from live flight searches.