$318+ Cheap flights from Colorado to Birmingham (BHX)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BHX
Jul 18 — Jul 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Colorado to Birmingham with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Colorado to Birmingham
Cheapest
Best
Last-minute
One-way
Cheapest flights from Colorado to BirminghamExplore the most affordable flight options available from Colorado to Birmingham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.
Explore the most affordable flight options available from Colorado to Birmingham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:30 am
COS
- BHX
2 stops19h 05m
United Airlines
Tue 11/106:10 am
BHX
- COS
2 stops22h 30m
United Airlines
Deal found 6/15![United Airlines logo]()
$882
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:50 pm
COS
- BHX
2 stops16h 45m
United Airlines
Fri 11/136:10 am
BHX
- COS
2 stops22h 30m
United Airlines
Deal found 6/17![United Airlines logo]()
$883
This Justfly.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:40 am
DEN
- BHX
2 stops17h 10m
Air Canada
Sun 10/115:55 am
BHX
- DEN
2 stops42h 03m
Air Canada
Deal found 6/15![Air Canada logo]()
$886
This Air Canada deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:15 pm
DEN
- BHX
2 stops42h 10m
Air Canada
Tue 8/255:55 am
BHX
- DEN
2 stops24h 57m
Air Canada
Deal found 6/16![Air Canada logo]()
$891
This Justfly.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:30 am
DEN
- BHX
2 stops15h 20m
Air Canada
Tue 8/1810:30 am
BHX
- DEN
2 stops55h 03m
Air Canada
Deal found 6/16![Air Canada logo]()
$915
This FlightHub deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:15 pm
DEN
- BHX
1 stop17h 55m
Multiple Airlines
Tue 8/255:55 am
BHX
- DEN
2 stops44h 00m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$949
This Gotogate deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:30 am
DEN
- BHX
2 stops15h 20m
Multiple Airlines
Tue 8/185:55 pm
BHX
- DEN
1 stop26h 50m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$955
This Gotogate deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:05 pm
DEN
- BHX
1 stop18h 05m
Multiple Airlines
Sun 10/115:55 am
BHX
- DEN
2 stops18h 03m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$965
This oojo deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:15 pm
DEN
- BHX
1 stop17h 55m
Lufthansa
Tue 8/255:55 am
BHX
- DEN
1 stop16h 45m
Lufthansa
Deal found 6/17![Lufthansa logo]()
$994
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
COS
- BHX
2 stops20h 30m
Delta
Fri 8/75:55 am
BHX
- COS
2 stops22h 43m
Delta
Deal found 6/16![Delta logo]()
$1,266
Best flights from Colorado to BirminghamDiscover carefully curated flight deals from Colorado to Birmingham that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 18, 2026.
Discover carefully curated flight deals from Colorado to Birmingham that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 18, 2026.
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:30 am
COS
- BHX
2 stops19h 05m
United Airlines
Tue 11/106:10 am
BHX
- COS
2 stops22h 30m
United Airlines
Deal found 6/16![United Airlines logo]()
$882
This Air Canada deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/911:25 am
DEN
- BHX
2 stops39h 25m
Air Canada
Tue 8/255:55 am
BHX
- DEN
2 stops20h 38m
Air Canada
Deal found 6/13![Air Canada logo]()
$886
This FlightHub deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:15 pm
DEN
- BHX
1 stop17h 55m
Multiple Airlines
Tue 8/255:55 am
BHX
- DEN
2 stops20h 00m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$949
This oojo deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:15 pm
DEN
- BHX
1 stop17h 55m
Lufthansa
Tue 8/255:55 am
BHX
- DEN
1 stop16h 45m
Lufthansa
Deal found 6/17![Lufthansa logo]()
$994
This Scandinavian Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:00 pm
DEN
- BHX
2 stops23h 30m
Scandinavian Airlines
Thu 11/197:10 pm
BHX
- DEN
2 stops36h 13m
Scandinavian Airlines
Deal found 6/13![Scandinavian Airlines logo]()
$1,085
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
COS
- BHX
2 stops20h 30m
Delta
Fri 8/75:55 am
BHX
- COS
2 stops22h 43m
Delta
Deal found 6/16![Delta logo]()
$1,266
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:50 pm
COS
- BHX
2 stops16h 45m
United Airlines
Fri 11/136:10 am
BHX
- COS
2 stops22h 30m
United Airlines
Deal found 6/17![United Airlines logo]()
$883
This oojo deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:05 pm
DEN
- BHX
1 stop18h 05m
Lufthansa
Sun 10/115:55 pm
BHX
- DEN
1 stop27h 25m
Lufthansa
Deal found 6/18![Lufthansa logo]()
$1,106
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:40 pm
DEN
- BHX
2 stops20h 55m
Multiple Airlines
Mon 8/38:55 am
BHX
- DEN
2 stops33h 25m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,139
This Mytrip deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:25 am
DEN
- BHX
2 stops23h 00m
Air Canada
Wed 7/296:05 am
BHX
- DEN
2 stops21h 17m
Air Canada
Deal found 6/13![Air Canada logo]()
$1,148
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/303:55 pm
DEN
- BHX
1 stop18h 20m
United Airlines
Thu 8/610:20 am
BHX
- DEN
2 stops20h 28m
United Airlines
Deal found 6/15![United Airlines logo]()
$1,153
Last-minute flights from Colorado to BirminghamDiscover last-minute flight deals from Colorado to Birmingham. Data last updated June 18, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Birmingham. Data last updated June 18, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:25 am
DEN
- BHX
2 stops23h 00m
Air Canada
Wed 7/296:05 am
BHX
- DEN
2 stops21h 17m
Air Canada
Deal found 6/16![Air Canada logo]()
$1,148
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:40 pm
DEN
- BHX
3 stops35h 50m
Multiple Airlines
Wed 7/296:00 pm
BHX
- DEN
2 stops31h 25m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,216
This Cheapflightsfares deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:00 pm
DEN
- BHX
1 stop15h 10m
Aer Lingus
Wed 7/298:10 am
BHX
- DEN
1 stop17h 05m
Aer Lingus
Deal found 6/16![Aer Lingus logo]()
$1,256
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:40 pm
DEN
- BHX
2 stops20h 55m
Multiple Airlines
Mon 8/38:55 am
BHX
- DEN
2 stops33h 25m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,139
This Cheapflightsfares deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/268:00 pm
DEN
- BHX
1 stop16h 55m
Aer Lingus
Mon 8/38:10 am
BHX
- DEN
1 stop17h 05m
Aer Lingus
Deal found 6/16![Aer Lingus logo]()
$1,260
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2911:25 am
DEN
- BHX
2 stops39h 25m
United Airlines
Wed 8/510:30 am
BHX
- DEN
2 stops40h 52m
United Airlines
Deal found 6/14![United Airlines logo]()
$1,282
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:10 am
DEN
- BHX
2 stops17h 40m
United Airlines
Thu 8/610:20 am
BHX
- DEN
2 stops20h 28m
United Airlines
Deal found 6/15![United Airlines logo]()
$1,153
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
COS
- BHX
2 stops20h 30m
Delta
Fri 8/75:55 am
BHX
- COS
2 stops22h 43m
Delta
Deal found 6/16![Delta logo]()
$1,266
One-way flights from Colorado to BirminghamSearch for one-way flight options from Colorado to Birmingham. Find affordable one-way fares based on user searches. Data last updated June 18, 2026.
Search for one-way flight options from Colorado to Birmingham. Find affordable one-way fares based on user searches. Data last updated June 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:40 pm
DEN
- BHX
3 stops35h 35m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:05 pm
DEN
- BHX
2 stops18h 35m
Delta
Deal found 6/16![Delta logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:53 pm
DEN
- BHX
2 stops35h 02m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$447
This Booking.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:15 pm
DEN
- BHX
1 stop17h 55m
Lufthansa
Deal found 6/16![Lufthansa logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:40 am
DEN
- BHX
1 stop17h 15m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$487
This Gotogate deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:25 pm
DEN
- BHX
1 stop29h 40m
Turkish Airlines
Deal found 6/17![Turkish Airlines logo]()
$1,075
Find flight deals from Colorado to Birmingham
Keep the following information in mind while searching for Colorado to Birmingham flight deals. Data was last updated June 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $882 (United Airlines) |
One-way from | $318 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to Birmingham that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
Use the filters below to find and compare flights from Colorado to Birmingham that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Colorado SpringsBirmingham
COS - BHX
COSBHX
Colorado Springs
Sun 11/8
10:30 am-12:35 pm
2 stops19h 05m
Birmingham
Tue 11/10
6:10 am-9:40 pm
2 stops22h 30m
$882
Colorado SpringsBirmingham
COS - BHX
COSBHX
Colorado Springs
Wed 11/11
12:50 pm-12:35 pm
2 stops16h 45m
Birmingham
Fri 11/13
6:10 am-9:40 pm
2 stops22h 30m
$883
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Sun 8/9
11:25 am-9:50 am
2 stops39h 25m
Birmingham
Tue 8/25
5:55 am-7:33 pm
2 stops20h 38m
$886
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Sun 8/9
4:15 pm-5:10 pm
1 stop17h 55m
Birmingham
Tue 8/25
5:55 am-6:55 pm
2 stops20h 00m
$949
Quickest round-trip
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Sun 8/9
4:15 pm-5:10 pm
1 stop17h 55m
Birmingham
Tue 8/25
5:55 am-3:40 pm
1 stop16h 45m
$994
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Mon 11/16
12:00 pm-6:30 pm
2 stops23h 30m
Birmingham
Thu 11/19
7:10 pm-12:23 am
2 stops36h 13m
$1,085
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Thu 10/1
4:05 pm-5:10 pm
1 stop18h 05m
Birmingham
Sun 10/11
5:55 pm-2:20 pm
1 stop27h 25m
$1,106
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Sun 7/26
4:40 pm-8:35 pm
2 stops20h 55m
Birmingham
Mon 8/3
8:55 am-11:20 am
2 stops33h 25m
$1,139
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Mon 7/6
11:25 am-5:25 pm
2 stops23h 00m
Birmingham
Wed 7/29
6:05 am-8:22 pm
2 stops21h 17m
$1,148
DenverBirmingham
DEN - BHX
DENBHX
Denver Intl
Thu 7/30
3:55 pm-5:15 pm
1 stop18h 20m
Birmingham
Thu 8/6
10:20 am-11:48 pm
2 stops20h 28m
$1,153
Showing 1-10 of 16 resultsSorted by cheapest first
Best time to book a flight from Colorado to Birmingham
Have a flexible travel schedule? Discover the best time to fly to Birmingham from Colorado with our price prediction graph.
COS-BHX
DEN-BHX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Colorado to Birmingham
USCO-BHX
COS-BHX
DEN-BHX
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Colorado to Birmingham. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Birmingham?
Book flights to Birmingham if you plan to visit one of these locationsWest Bromwich
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Birmingham flight routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Colorado to Birmingham
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Birmingham
Explore flights to Birmingham departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 18, 2026.
Complete your trip
Complete your trip to Birmingham by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Birmingham by cabin class
Find flights from Colorado to Birmingham, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Birmingham flights
Browse other Colorado and Birmingham flight options. Last updated on June 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Colorado to Birmingham flights
Consider these flights traveling from Colorado to Birmingham.
Top airline flying from Colorado to Birmingham
Discover the top airline that operate flights from Colorado to Birmingham. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$717 | Average$1,052 | FlexibilityNo cancel fee | On-timeN/A |